ГИДРАВЛИЧЕСКОЕ УСТРОЙСТВО С МАГНИТНЫМИ ФИКСИРУЮЩИМИ КЛАПАНАМИ

Изобретение относится к области управления гидравлическими устройствами. Способ клапанного управления гидравлическим устройством (12), который включает в себя: прием сигнала, который находится в определенном соотношении с замещением жидкости объемной камеры устройства в сборе с замещением жидкости гидравлического устройства. Запорный шарик (96) разблокируется из магнитного полюса (70) первого фиксирующего клапана (52а), который имеет соединение по жидкой среде с объемной камерой (36) и впускным отверстием (14) для жидкости гидравлического устройства, когда замещение жидкости объемной камеры достигает первого значения. Запорный шарик разблокируется из магнитного полюса второго фиксирующего клапана (52b), который имеет соединение по жидкой среде с объемной камерой и выпускным отверстием (16) для жидкости гидравлического устройства, когда замещение жидкости объемной камеры достигает второго значения. Усовершенствуется процесс управления гидравлическим устройством. 3 н. и 12 з.п. ф-лы, 11 ил ...

РЕГУЛЯТОРЫ И СИСТЕМЫ ПОДАЧИ

Изобретение относится к регуляторам и/или его частям либо компонентам, например, в системах, питающих пневматические инструменты. В некоторых вариантах осуществления имеются двухступенчатые регуляторы, в которых каждая ступень регуляторов является настраиваемой и/или перестраиваемой. В некоторых предпочтительных вариантах осуществления имеются перестраиваемые и/или настраиваемые двухступенчатые регуляторы, которые могут быть использованы при необходимости селективно, в применениях низкого и/или высокого давления, в применениях с прерывистым режимом подачи и/или режимом постоянной подачи потока и/или в применениях с малым и/или большим объемом (или в любом их сочетании). В некоторых дополнительных вариантах осуществления, в сочетании или отдельно от признаков других описанных здесь вариантов осуществления, имеются регуляторы, которые имеют стабильные эксплуатационные параметры независимо, например от нагнетающего давления цилиндра. В некоторых вариантах осуществления предусмотрены регуляторы ...

ДОЖИМАЮЩАЯ КОМПРЕССОРНАЯ УСТАНОВКА

Изобретение относится к области машиностроения, а именно к установкам для получения сжатого газа. Дожимающая компрессорная установка содержит вход сжатого газа (1), дожимающий компрессор (2) и первый ресивер (3). Вход дожимающего компрессора (2) соединен со входом сжатого газа (1), а выход дожимающего компрессора (2) соединен со входом первого ресивера (3). На входе дожимающего компрессора (2) установлен первый запорный клапан (5). Вход сжатого газа (1) дополнительно соединен со входом первого ресивера (3) через второй запорный клапан (9). Достигается компенсация потери производительности дожимающей компрессорной установки в начальный период ее работы. Также достигается сокращение времени работы дожимающего компрессора и количества его пусков и остановок. 7 з.п. ф-лы, 2 ил.

УСТРОЙСТВО КОНТРОЛЯ И УПРАВЛЕНИЯ НАСОСОМ

Изобретение относится к области насосов и насосного оборудования. Устройство содержит корпус (1) с соосными входным (2) и выходным (3) штуцерами и установленным между ними обратным клапаном (4) со сферическим запорным элементом (5) и направляющим штоком, постоянный магнит (6), взаимодействующий с герконом датчика потока, установленным на печатной плате (9), закрепленной в корпусе с микроконтроллером (10) и электронными компонентами (11) и датчиками давления (7) и температуры (8). На сферическом запорном элементе (5) закреплен в виде тороидального кольца постоянный магнит (6) датчика потока. По крайней мере один геркон датчика потока установлен в корпусе на стенке обратного клапана с возможностью перемещения позиционно вдоль оси перемещения запорного элемента. Обеспечивается создание простого, надежного и универсального устройства управления и контроля насоса. 3 ил.

ДВУХЦИЛИНДРОВЫЙ ПОРШНЕВЫЙ НАСОС

Двухцилиндровый поршневой насос с цилиндрами двойного действия, содержащий корпус с цилиндрами, в которых установлены поршни, связанные штоками с приводом и образующие две поршневые и две штоковые камеры с всасывающим и нагнетательным клапаном в каждой из них, отличающийся тем, что нагнетательные клапаны штоковых камер снабжены приводом для их подъема и фиксации в поднятом положении, причем приводной шток каждого привода выведен за пределы штоковой камеры.

УПРАВЛЕНИЕ СИСТЕМОЙ РАЗГРУЗКИ КОМПРЕССОРА

Изобретение относится к области компрессоростроения, в частности к системам изменения производительности компрессоров. Компрессор переменной производительности включает в себя корпус с входным и выходным отверстиями для приема хладагента и его возврата соответственно и множество сжимающих элементов, расположенных в корпусе между входным и выходным отверстиями. Включает также клапан с электрическим управлением, предназначенный для сжимающих элементов, выбранных из общего количества сжимающих элементов. Клапан выполнен с возможностью перемещения между первым состоянием, в котором он открыт для передачи потока хладагента к сжимающим элементам, и вторым состоянием, в котором он закрыт для уменьшения или прекращения протекания потока к сжимающим элементам. В одном из вариантов осуществления изобретения контроллер разгрузки имеет режим изменения работы компрессора, который включает в себя переключение клапана между включенным и выключенным состояниями для получения части производительности компрессора ...

Kolbenpumpe zur Foerderung fluechtiger Stoffe, insbesondere zum Einspritzen von fluechtigen Brennstoffen in Brennkraftmaschinen

Hydrostatikkreislauf-Entleerventil zum reduzieren des von einer hydrostatischen Einheit benötigten Antriebsdrehmoments

Hydrostatikkreislauf - Entleerventil für eine hydrostatische Kraftübertragungsvorrichtung, die eine hydraulische Pumpe (10) und einen mit der hydraulischen Pumpe (10) fluidmäßig in einem geschlossenen Kreislauf durch erste und zweite Systemdruckleitungen (14, 16) verbundenen hydraulischen Motor (12) enthält; wobei das Kreislauf-Entleerventil ein Paar von Entleerventilen (24, 26), welche jeweils fluidmäßig mit den ersten bzw. zweiten Systemdruckleitungen (14, 16) verbunden sind, aufweist; die Entleerventile (24, 26) normalerweise mittels einer Feder (30) in eine offene Position vorgespannt sind, wodurch Fluid durch die Entleerventile (24, 26) hindurch während des Startvorgangs der Kraftübertragungsvorrichtung abläuft; die Entleerventile (24, 26) automatisch geschlossen werden, sobald der Druck in den entsprechenden ersten und zweiten Systemdruckleitungen (14, 16) die Federvorspannung überschreitet und die Entleerventile (24, 26) Geschwindigkeitssicherungsventile (24a, 26a) sind.

Hydrostatische Axialkolbenmaschine mit Leistungsbegrenzung

Offenbart ist eine hydrostatische Axialkolbenmaschine mit Leistungsbegrenzung.

Kompressor mit einem Steuerventil in einem Ansaugdurchgang des Kompressors

Kompressor zum Komprimieren eines gasförmigen Fluids, mit einem Ansaugdurchgang (17, 18) zum Zuführen des gasförmigen Fluids und einem Steuerventil (22), das derart an dem Ansaugdurchgang (17, 18) zum Steuern einer offenen Fläche des Ansaugdurchgangs (17, 18) angeordnet ist, daß die offene Fläche in einem ersten Zustand, in dem das gasförmige Fluid eine relativ geringe Flußrate in dem Ansaugdurchgang (17, 18) aufweist, verringert wird, und daß die offene Fläche in einem zweiten Zustand, in dem das gasförmige Fluid eine relative hohe Flußrate in dem Ansaugdurchgang (17, 18) aufweist, erhöht wird, und mit einer Ansaugkammer (16), die mit dem Ansaugdurchgang (17, 18) verbunden ist, zum Aufnehmen des gasförmigen Fluids von dem Ansaugdurchgang (17, 18), dadurch gekennzeichnet, daß das Steuerventil (22) derart zwischen dem Ansaugdurchgang (17, 18) und der Ansaugkammer (16) angeordnet ist, daß es nur infolge einer Druckdifferenz zwischen einer stromaufwärtigen Seite des Ansaugdurchgangs (17, 18 ...

Pumpeneinrichtung

Hochdruckkolbenpumpe

Eine Hochdruckkolbenpumpe zur Hochdruckversorgung von Verbrauchern, insbesondere in Common-Rail-Einspritzsystemen von Brennkraftmaschinen, weist ein Pumpengehäuse (1) mit wenigstens einem Hochdruckzylinder (2) auf. In dem Hochdruckzylinder (2) ist ein Hochdruckkolben (3) gegen die Vorspannkraft einer Feder (4) hin- und herbewegbar aufgenommen, um mit Hochdruck beaufschlagtes Fluid zu dem Verbraucher zu fördern. Vorgesehen ist ein Niederdruckzylinder (5), in dem, angetrieben durch einen Nocken (6), ein Niederdruckkolben (7) hin- und herbewegbar ist, wobei der Hochdruckkolben (3) durch einen Druck im Niederdruckzylinder (5) angetrieben ist. Vorgesehen sind Mittel (15), um bei Bedarf aus dem Niederdruckzylinder (5) Druck abzulassen.

Variable output control for a fixed displacement pump

Compressor unloader devices

... 879,343. Regulating compressors. JOY MANUFACTURING CO. Sept. 21, 1959, No. 32029/59. Class 8(1). A compressor unloader 7, Fig. 1, is actuated by a high pressure hydraulic medium working in a control line 36 connected to the control means, comprising a casing 2, connected to the compressor housing 17, containing a reservoir 22 formed between casing 2 and barrel 26 in which moves a plunger 4, the said plunger being receiver pressure rotated and having helical control edges 74, Fig. 2, co-operable with ports 65 and an annular space 72 behind the head of said plunger whereby when the pressure in the barrel chamber is decreasing, plunger valve 54 opens releasing high pressure fluid from line 36, Y piece 56, channels 52, 60, 64, Fig. 7, (not shown), ports 65, relief space 72, holes 68 into the reservoir 22, said reservoir having a large volume relative to line 36. as the receiver pressure rises, the helical control edges are rotated causing the ports 65 to open later and later thereby maintaining ...

CHECK VALVE

REFRIGERATION COMPRESSOR

CLIMATIC COMPRESSOR WITH DIFFERENTIAL PRESSURE DELIMITATION MECHANISM

HYDRAULIC SYSTEM FOR RAILROAD CAR, IN PARTICULAR A SCHOTTERWAGEN

SELBSTTATIGES PRESSURE RELIEF VALVE

Rapid unloader retrofits

CHECK VALVE

A check valve (20) with a body (22) and a hole (30) extending from an inlet (24) to an outlet (26). A piston assembly (52), mounted in the body (22), includes a piston (54), a check valve seal (60) and a piston spring (55). The piston spring (55) biases the piston (54) to a first location preventing air from flowing from the inlet end (24) toward the outlet end (26). The check valve seal (60) is positioned to seal against a check valve seat (37). Movement of the piston (54) removes the check valve seal (60) from the check valve seat (37), allowing air to flow from the inlet end (24) toward the outlet end (26). A tapered portion (64) of the hole (30) permits usage with systems having different volume output levels. A dampener (31) reduces fluctuations of the piston (54) caused by cyclical fluctuations in fluids controlled.

USING A LOAD SENSE PUMP AS A BACKUP FOR A PRESSURE-COMPENSATED PUMP

A load sense pump can be used as a backup for a pressure-compensated pump in a wellbore operation. A pumping system can include a first pump, a second pump, a check valve, and a directional control valve. The first pump, which can be a load sense pump, can be used to provide pressure to a first hydraulic load. The second pump, which can be a pressure-compensated pump, can be used to provide pressure to a second hydraulic load. The directional control valve can be controllable to cause the first pump to change operation to provide pressure to the first hydraulic load and through the check valve to the second hydraulic load.

CONTROL VALVE ASSEMBLY FOR A COMPRESSOR UNLOADER

A closing element is for a valve assembly of a compressor unloader, the compressor including a casing with a compression chamber, the unloader including a housing defining a chamber. The valve assembly has a base between the compression and unloader chambers, a passage connecting the two chambers, a seat about the passage, and a stem bore within the base having a control chamber. The closing element includes a main body movably disposed within the stem bore and having a sealing surface disposeable against the valve seating surface to obstruct the valve passage and a control end surface within the bore control chamber. A sealing member disposed about the main body prevents flow between the control chamber and the valve passage. The main body and/or the sealing member is configured such that the main body is radially moveable to align the body sealing surface with the valve seat.

PUMP ENABLE SYSTEM AND METHOD

A pump enable system includes a variable-displacement piston pump having a displacement control device. The displacement control device controls displacement of pistons in the pump based on a position thereof, and a position control system in the pump controls a position of the displacement control device based on a load on the pump. An over-ride system selectively over-rides the position control system such that the displacement control device assumes a position which reduces displacement of the pistons in the pump.

Vorrichtung zur Leistungsregelung von Mehrzylinderkompressoren

Hydraulische Ventileinheit, Leistungs- und/oder Drehmomentregelungssystem und Axialkolbenmaschine mit einer solchen.

Die Erfindung betrifft eine hydraulische Ventileinheit zur Leistungs- oder Drehmomentregelung einer Axialkolbenmaschine, umfassend ein erstes Ventil mit einem in einem ersten Ventilgehäuse verschiebbar gelagerten Steuerkolben und ein zum ersten Ventil koaxial angeordnetes zweites Ventil mit einem in einem zweiten Ventilgehäuse verschiebbar gelagerten Druckkolben. Mittels der Ventileinheit ist ein an einem Arbeitsanschluss anliegender Arbeitsdruck abhängig von der Position des Steuerkolbens auf einen an einem Steueranschluss anliegenden Steuerdruck reduzierbar. Der Steuerkolben ist durch eine im ersten Ventil angeordnete Einstellfeder vorgespannt. Erfindungsgemäß sind Steuerkolben und Druckkolben durch ein elastisches Element kraftschlüssig miteinander verbunden, welches dazu ausgelegt ist, eine auf den Druckkolben wirkende Kraft auf den Steuerkolben zu übertragen. Die Erfindung betrifft ferner ein Leistungsregelungssystem mit einer erfindungsgemäßen Ventileinheit und eine Axialkolbenmaschine ...

Axialkolbenmaschine mit Steuerventil.

Die Erfindung betrifft eine Axialkolbenmaschine umfassend eine Schrägscheibe, eine Triebwelle mit Triebwerk, einen oder mehrere darin verschiebbare Triebwerkskolben, deren Kolbenhub durch die Schrägscheibe einstellbar ist, eine mechanische Verstelleinrichtung zur Änderung des Schwenkwinkels der Schrägscheibe und ein extern ansteuerbares Steuerventil. Das Steuerventil weist ein Ventilgehäuse (32) mit einem verschiebbaren Steuerkolben (31) auf, wobei die Verstelleinrichtung mittels des Steuerventils hydraulisch betätigbar ist. Eine Stellkammer des Steuerventils ist zur Druckbeaufschlagung der Verstelleinrichtung über eine sich radial durch den Steuerkolben erstreckende Stelldruckverbindung je nach Schaltzustand des Steuerventils mit einem Hoch- oder einem Niederdruckeingang (T) verbindbar. In einem Regelbetrieb ist wahlweise eine Verbindung zwischen Hochdruckeingang (A) und Stelldruckverbindung über eine erste Steuerkante oder zwischen Niederdruckeingang (T) und Stelldruckverbindung über ...

Low pressure starts muffler with adjustable

Compressor with suction volume regulation

Pneumatic diaphragm pump driving system

The invention discloses a pneumatic diaphragm pump driving system which comprises a control unit connected with a pneumatic diaphragm pump, and the control unit comprises a transistor output port and an analog quantity output port. Wherein an output port of the transistor is connected with an electromagnetic valve of the pneumatic diaphragm pump and is used for driving the pneumatic diaphragm pump to be opened or closed through the electromagnetic valve; the analog quantity output port is connected with a proportioning valve of the pneumatic diaphragm pump, the analog quantity output port is used for outputting corresponding voltage based on the numerical value of the input signal, and the proportioning valve adjusts the valve opening degree of the proportioning valve based on the voltage. The pneumatic diaphragm pump driver solves the problem that a pneumatic diaphragm pump driver in the prior art is easy to age and damage after long-time use or needs to be maintained frequently after ...

Automatic device of adjustment for the no-load of similar compressors etmachines

Regulator of disengaging for compressor of air

Improvements brought to the devices limitings device of pressure operating the driving mechanism producing this pressure, in particular to those for compressor units

HYDRAULIC REGULATOR HAS PROGRESSIVE FLOW

Appareil hydraulique permettant au débit refoulé par un système de pompage de passer de la valeur " zéro " (au démarrage) jusqu'au débit nominal (ou d'exploitation) conformément à une durée présélectionnée. L'invention concerne un dispositif constitué d'un élément circulaire (1) comportant un rétrécissement (3) qui sert de siège à un piston "cylindrique conique " (7). Lors du démarrage de la pompe ce piston par un mouvement ascendant quitte le siège et s'engage dans un cylindre (6). La durée de sa course est fonction du degré d'ouverture d'un robinet à pointeau (17) qui équipe la tuyauterie d'évacuation (16) de l'eau chassée par le piston. L'eau rejoint une chambre de tranquillisation (9). Lors de l'arrêt du pompage l'eau redescend dans le cylindre (6) par l'intermédiaire d'une tuyauterie (20) et le piston retrouve sa position initiale (appui sur (8) ). Le dispositif selon l'invention est particulièrement destiné à la régulation du débit de pompes immergées installées dans un forage qui ...

AIR-CONDITIONING COMPRESSOR WITH A DIFFERENTIAL-PRESSURE LIMITING DEVICE

AIR COMPRESSION SYSTEM WITH REMOTE FAILURE DIAGNOSIS MODULE USING WCDMA

The present invention relates to an air compression device with a failure diagnosis module, monitoring an air compressor using a failure diagnosis module using a failure diagnosis element and a bidirectional wireless communications module using a WCDMA in real time in order to improve efficiency of the compressor and reduces power consumption. Moreover, the present invention stores a failure record and manages and controls a failure in order to reduce maintenance costs of the air compressor. COPYRIGHT KIPO 2018 (10) Diagnosis information sensor (100) Air compressor system (20) Fault diagnosis module (30) Monitoring/control means (AA) Air end (BB) Compressor (CC) Communication module (DD) Remote control center (EE) Mobile terminal ...

POWER REDUCING DEVICE FOR AIR COMPRESSOR OF VEHICLE

PURPOSE: A power reducing device is provided to achieve improved fuel efficiency by reducing suction and discharge resistances of the air compressor and power required for rotation of the air compressor. CONSTITUTION: A power reducing device comprises a valve accommodation chamber(160) formed in a cylinder head(110), which has an inlet port(161), an outlet port(162) and a pressure hole(163) communicated to a cylinder(120), an air outlet port(112) and outside; the second outlet hole(143) formed at a valve plate(140) arranged directly beneath the valve accommodation chamber and communicated to the inlet port of the valve accommodation chamber; a difference pressure operation valve(170) embedded in the valve accommodation chamber together with a spring(180), which moves in a vertical direction by the pressure of an air tank, internal pressure of the cylinder and elastic force of the spring, and opens/shuts the inlet port and the outlet port; and an air hose(190) connected to the pressure hole ...

CONTROL DEVICE FOR VARIABLE DISPLACEMENT COMPRESSOR

PURPOSE: To provide a control device for variable displacement compressor which makes excellent start-up property compatible with stabilization of discharge capacity control at a high quality level in an air conditioning device. CONSTITUTION: A crank chamber side passage 69 from a crank chamber 17, a suction chamber side passage 68 from a suction chamber 25, and a discharge chamber side passage 67 from a discharge chamber 26 are connected to an auxiliary valve 62. A capacity control valve 33 for adjusting an opening of the passage 67 is provided on the discharge chamber side passage 67. The auxiliary valve 62 is constituted by a spool valve 64 slidably housed in a valve chamber 63. The inside of the valve chamber 63 is partitioned into a first pressure chamber 65 and a second pressure chamber 66 by the spool valve 64. The discharge chamber side passage 67 is connected to the first pressure chamber 65, and the suction chamber side passage 68 is connected to the second pressure chamber 66 ...

compressor superalimentado e processo para controlar um compressor superalimentado

FLOW SPLITTING IN SUPERCRITICAL FLUID CHROMATOGRAPHY SYSTEMS

A method includes passing a mobile phase fluid flow comprising liquefied CO2 through a separation column; then introducing a makeup fluid flow into the mobile phase fluid flow to form a mixed fluid flow; and then splitting the mixed fluid flow.

LIQUID-COOLED COMPRESSOR AND METHOD FOR OPERATING SAME

Typical liquid-cooled compressors use the effective means of reducing no-load power by repeatedly starting and stopping an electric motor according to the amount of required air, but sufficient consideration has not been given to the fact that frequent starting and stopping of large-output electric motors leads to a decline in motor reliability. In order to solve this problem, a liquid-cooled compressor for circulating a liquid inside a compressor body using a pressure difference, and equipped with a cooling channel for circulating said liquid for cooling, is configured so as to have an intake valve for adjusting the air intake of the compressor body, to change the amount of air taken in through the intake valve, and as a result, to perform a low-pressure operation during no-load operation at two levels of reduced operating pressure consisting of a value no less than a minimum circulation oil supply pressure and a low value. As a result, it is possible to provide a compressor which balances ...

GAS OPERATED INFINITE STEP VALVE FOR A RECIPROCATING COMPRESSOR

An improved inlet valve system for a cylinder chamber of a reciprocating compressor and a method for utilizing a high pressure gas source to control an inlet valve system for a cylinder chamber of a reciprocating compressor is disclosed. The inlet valve system may include an unloader, a valve assembly including a cylindrical valve body circumferentially disposed about a central axis of the inlet valve system, and a control valve actuator including a control valve body. The valve assembly may include a plurality of inlet valve elements disposed respectively in valve element ports fluidly connected to a control valve passage. A high pressure gas source is utilized to hold open and close the inlet valve elements via the control valve passage in order to control the capacity of the reciprocating compressor.

VALVE DEVICE FOR A RECIPROCATING-PISTON COMPRESSOR

The invention relates to a reciprocating-piston compressor for a compressed air supply system in a motor vehicle, comprising a cylinder head with an integrated unloading system which is used to switch an unloading channel in a valve support plate of the cylinder head, said channel connecting a working area of the reciprocating-piston compressor to a chamber in the cylinder head. The aim of the invention is to improve the efficiency of the reciprocating-piston compressor. To achieve this, the unloading system comprises a switch device and a lamella, wherein the lamella is secured to the valve support plate on the working area side and is designed such that the lamella can lift off from the valve support plate in order to open the unloading channel, and the lamella can lift off automatically and/or in a controlled manner by means of the unloading system.

Reciprocating compressors having timing valves and related methods

A reciprocating compressor for the oil and gas industry, the reciprocating compressor has a chamber, a timing valve, an actuator and a controller. A fluid entering the chamber via a suction valve is compressed inside the chamber, and evacuated from the chamber via a discharge valve. The timing valve is located between the chamber and a fluid volume at a relief pressure that is lower than a pressure in the chamber when the timing valve is opened. The actuator is configured to actuate the timing valve. The controller is configured to control the actuator such that to open the timing valve during an expansion phase of the compression cycle, and to close the timing valve when the relief pressure becomes equal to the pressure in the chamber or when the suction valve is opened.

Pressure valve device for a cleaning apparatus

A pressure valve used in a cleaning apparatus. The pressure valve is provided between a pump motor and a cleaning injector. The pressure valve includes a valve body, a floating valve rod, a ball valve, a compression spring, and an adjusting screw. The valve body is connected to the water supply system via pipings (A, B, C) so that starting and shutting off of the cleaning injector can alter the water pressures in the individual chambers of the valve body, which then causes the opening and closing of the ball valve. Due to the changes in the water pressure within the chambers of the pressure valve, a floating valve rod within the pressure valve will press against a micro switch to control the starting or shutting off of the pumping motor.

EQUIPMENT FOR CONTINUOUS REGULATION OF THE FLOW RATE OF RECIPROCATING COMPRESSORS

Equipment for continuous regulation of the flow rate for a reciprocating compressor, provided with at least one compression chamber (1) in which is slidably inserted a piston means (101) movable with a reciprocating motion, at least one inlet valve (2) for the fluid to be compressed and at least one outlet valve (4) for the compressed fluid being provided in the said chamber, the said outlet valve (4) being connected to a storage reservoir (10) for the compressed fluid, and the said inlet valve (2) being provided with translation means (502, 512) which can act on the obturator (302) of the said valve (2), the said translation means (502, 512) being movable in a direction perpendicular to the plane of the said obturator (302), and interacting with actuator means (3, 103, 203) which are movable in the said direction with a reciprocating motion by means of suitable operating means (303, 403); the said operating means (303, 403) make it possible to control the velocity of displacement of the ...

Compressor provided with pressure relief valve

A compressor has a high-pressure relief valve and a low-pressure relief valve. The high-pressure relief valve in use for a discharge region opens when the pressure of gas in the discharge region is more than a first predetermined pressure. The high-pressure relief valve is provided with a first shim. The low-pressure relief valve in use for a suction region opens when the pressure of gas in the suction region is more than a second predetermined pressure which is lower than the first predetermined pressure. The low-pressure relief valve is provided with a second shim. The high-pressure relief valve and the low-pressure relief valve have similar structure to each other.

Linear hydraulic pump and its application in well pressure control

An apparatus includes a linear motor and a fluid pump functionally connected to the linear motor. A fluid inlet of the fluid pump is in fluid communication with a fluid source. A fluid outlet of the fluid pump in fluid communication with a well. A pressure sensor is in fluid communication with the well. A controller is functionally coupled to the linear motor and the pressure sensor, wherein the controller is configured to operate the fluid pump to maintain a selected pressure in the well.

FLUID DELIVERY SYSTEM

A system (202) for delivering fluid in a machine (102) is provided. The system (202) includes a pump (208), a first valve (214) disposed downstream of the pump (208), a check valve (220) disposed downstream of the first valve (214), at least one accumulator (216, 218) disposed downstream of the check valve (220), and an auxiliary system (204) disposed upstream of the check valve (220). The system (202) further includes a control unit (232) configured to receive a signal indicative of a fluid demand from the auxiliary system (204). The control unit (232) is also configured to selectively control the first valve (214) in a first position (P1) to limit flow of the fluid from the pump (208) to the auxiliary system (204), and in a second position (P2) to allow flow of the fluid from the pump (208) to the auxiliary system (204) based, at least in part, on the received signal. The check valve (220) limits flow of a fluid from the at least one accumulator (216, 218) to the auxiliary system (204 ...

Method for controlling the operation of a chiller system has the suction chamber of the piston type compressor periodically isolated by a pulse width modulated control signal

A method for controlling the operation of a chiller system has the suction chamber (21) of the piston type (15) compressor periodically closed by a pulse width modulated control signal with varying effect to match the cooling conditions. The suction chamber is closed by a hydraulic/pneumatic valve (33) powered by a linking duct (41) to the pressure chamber (25) of the compressor and fitted with a control valve (45) operated by a PID control (47). The maximum pulse width modulation is 60 seconds and preferable 15 seconds, and a minimum value of 1 second.

VORRICHTUNG ZUR STEUERUNG EINES HYDRAULISCH ANGETRIEBENEN MOTORS

Vorrichtung zum Steuern der Leistungsregelung von Mehrzylinder-Kolbenverdichtern

Regelventil für einen Verdichter variabler Verdrängung

Vehicle air compressor

Arrangement for reducing standby power loses in hydraulic valve control systems

Compressor Control Valve.

... 1,159,600. Fluid pressure control valve &c. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. 31 Oct., 1966 [5 Nov., 1965], No. 48742/66. Heading F2V. In a valve, for controlling the delivery discharge of a compressor, fluid under pressure supplied to an inlet 16 passes through a chamber 18, ducts 30 and then raises a check valve 32 before entering, through duct 14, a fluid pressure reservoir, (not shown). As pressure within the reservoir, and consequently chamber 18, builds up, it is transmitted via ducts 52 and 56 to an annular groove 54 disposed within a member 25 closing an exhaust aperture 22. This pressure acts, through a resilient annular O-ring 58, on a split expanding metal ring 60 which, as a result, expands outwardly and into abutment with the upstanding flanges 48 of a U-shaped container 46, the exhaust closure member 25 being disposed within this container. Upon the pressures within the reservoir and chamber 18 becoming substantially equal, the forces acting on the opposed faces ...

DEVICE FOR THE CONTROLLING OF A HYDRAULICALLY PROPELLED ENGINE

Zylinderkopf für mehrstufige Kolbenverdichter

Leerlaufregelung eines mehrstufigen Kolbenverdichters wobei während der Leerlaufphase ein Druckventil (37) einer ersten Verdichterstufe (6) und ein Saugventil (38) einer zweiten Verdichterstufe (14) zwangsweise gleichzeitig offengehalten werden, die erste Verdichterstufe (6) und die zweite Verdichterstufe (14) durch einen dazwischenliegenden, gemeinsamen Raum (36) verbunden werden und ein zu verdichtendes Medium zwischen der ersten Verdichterstufe (6) und der zweiten Verdichterstufe (14) durch den gemeinsamen Raum (36) hin und hergeschoben wird.

Zylinderkopf für mehrstufige Kolbenverdichter

Leerlaufregelung eines mehrstufigen Kolbenverdichters wobei während der Leerlaufphase ein Druckventil (37) einer ersten Verdichterstufe (6) und ein Saugventil (38) einer zweiten Verdichterstufe (14) zwangsweise gleichzeitig offengehalten werden, die erste Verdichterstufe (6) und die zweite Verdichterstufe (14) durch einen dazwischenliegenden, gemeinsamen Raum (36) verbunden werden und ein zu verdichtendes Medium zwischen der ersten Verdichterstufe (6) und der zweiten Verdichterstufe (14) durch den gemeinsamen Raum (36) hin und hergeschoben wird.

PROCEDURE FOR HEADING FOR A PUMP ARRANGEMENT AND PUMP ARRANGEMENT

Membrane pump with bleed valve

Suction pump with Air Release Valve

Air Compressor Control System

Abstract In one aspect, an air compressor controller 12 is disclosed. In at least one embodiment, the air compressor controller 12 is operable for controlling an air compressor 24 powered by an engine. The air compressor 24 has an air inlet 102 which regulates the volume of air consumed by the compressor and an outlet 106 connected to a reservoir for supply of compressed air from the reservoir. The controller 12 comprises a receiver of desired compressed air output pressure, a receiver of desired compressed air volume consumption, a receiver of reservoir pressure, a receiver of an indication of engine power output, a processor for determining an output based on the received desired output pressure, the received desired volume consumption, the received reservoir pressure, and the indication of engine power output. The output comprises a control signal for controlling the position of the inlet valve into the air compressor. -2/2 X'wn -g D 4160 /t'ad (ic<) (4~0?Ot e er1 S) 6""" A//rsk164 / ...

RUNAWAY VALVE SYSTEM FOR A PUMP

A system includes a pump. The pump includes a piston configured to axially reciprocate within a body. The axial movement of the piston activates a first chamber valve and a second chamber valve. The system also includes a main valve configured to direct a flow to the pump to facilitate the axial movement which then transfers a fluid from a reservoir to a spray applicator. The system includes a runaway valve system fluidly coupled to the main valve and configured to detect a runaway state of the pump. The runaway valve system is configured to direct the main valve to stop operation of the pump in response to detection of the runaway state.

CHOKE AND EMI FILTER CIRCUITS FOR POWER FACTOR CORRECTION CIRCUITS

A converter circuit is provided and includes: a first EMI filter connected to AC lines and includes one or more across-the-line capacitors; a charging circuit that receives power from the first EMI filter and limits an amount of current passing from the first EMI filter to a DC bus; and a PFC circuit of a compressor drive that provides PFC between an output of the charging circuit and a generated first DC voltage. The PFC circuit includes: a rectification circuit that rectifies the power from the AC lines or a charging circuit output; and a second EMI filter connected downstream from the rectification circuit and including a DC bus rated capacitor. The second EMI filter outputs a filtered DC signal based on a rectification circuit output. The PFC circuit, based on the second EMI filter output, outputs the first DC voltage to the DC bus to power the compressor drive.

CONTROL VALVE ASSEMBLY FOR A COMPRESSOR UNLOADER

A closing element is for a valve assembly of a compressor unloader, the compressor including a casing with a compression chamber, the unloader including a housing defining a chamber. The valve assembly has a base between the compression and unloader chambers, a passage connecting the two chambers, a seat about the passage, and a stem bore within the base having a control chamber. The closing element includes a main body movably disposed within the stem bore and having a sealing surface disposeable against the valve seating surface to obstruct the valve passage and a control end surface within the bore control chamber. A sealing member disposed about the main body prevents flow between the control chamber and the valve passage. The main body and/or the sealing member is configured such that the main body is radially moveable to align the body sealing surface with the valve seat.

OIL-FREE AIR COMPRESSOR SYSTEM WITH INLET THROTTLE

The present air compressor system includes at least one piston stage conn ected to the air inlet of the compressor by an inlet valve and connected to the compressed air outlet of the compressor by an outlet valve; a motor driv ing the piston stage; and an adjustable throttle connected between the air i nlet and the inlet valve. A controller controls the motor and the throttle t o substantially close the throttle to unload the piston stage when necessary .

COMPRESSOR FREEZE UP PREVENTION IN COLD WEATHER

The present embodiments provide a control system and method that is able to automatically cycle one or more compressor valves, for example to prevent freeze up. For example, in one embodiment, a system includes a compressor having a compression device configured to increase a pressure of a gas, a valve configured to control flow of the gas from the compression device, and a controller configured to cycle the valve to reduce buildup of contaminants in the compressor.

SYSTEM FOR CONTROLLING THE STROKE OF AN AIR-OPERATED DOUBLE DIAPHRAGM PUMP

A system for controlling the stroke of an air-operated double diaphragm pump 12 includes a first control valve 30 and a second control valve 34 disposed in parallel within a drive air outlet conduit 28. The first flow control valve 30 has a first air flow capacity and the second flow control valve 34 has a second air flow capacity which is less than about 50% of the first air flow capacity.

HYDRAULIC OIL WELL PUMPING SYSTEM, AND METHOD FOR PUMPING HYDROCARBON FLUIDS FROM A WELLBORE

A hydraulic oil well pumping system is provided. The system uses a pump to exert hydraulic pressure against a reciprocating piston over a wellbore. The piston is connected to a rod string and downhole pump for pumping oil from a wellbore. The system includes an electronic control system that controls movement of the piston as it moves between the upper and lower rod positions by cycling the hydraulic system between (i) an "upstroke" condition wherein the pump is pumping oil through the oil line into the hydraulic cylinder to move the piston to its upper rod position, and (ii) a "neutral" condition wherein the pump is no longer pumping oil into the hydraulic cylinder, but is allowing oil to flow back through the oil line in response to gravitational fall of the piston. The control system is programmed to cycle based upon a volumetric calculation of hydraulic oil in the cylinder without reference to position sensors along the wellhead. Wellhead conditions or placement of the hydraulic cylinder ...

Apparatus and Method for Electronically Controlling Inlet Flow and Preventing Backflow in a Compressor

DEVICE FOR CAPACITY CONTROL PISTON COMPRESSOR

可变排量旋转斜板式压缩机电控阀

The invention is a kind of electric control valve for rotary tilted-plate compressor which comprises electromagnetism driving mechanism, valve body including upper one and the subjacent one, corrugation tube, pretightening force adjusting device, filtering net and the junctions of out lines. The electromagnetism driving mechanism is in the subjacent valve body which includes electromagnetism coil, restoration spring and static iron core; the upper and the subjacent valve bodies joint, forms crank cavity and absorption cavity on the upper valve, the valve is set between the crank cavity and the absorption cavity, and there sets valve body, corrugation tube and the adjusting device of pretightening force; the filtering net ring is set at the crank cavity, the junction of the out line connects with the terminal of electromagnetism coil.

Safety valve of volumetric pump

Tunnel construction reverse slope automatic control siphon water pumping and draining method

The invention discloses an automatic control siphon water pumping and draining method for a tunnel construction reverse slope. During construction, construction water of a tunnel face and a lower step is pumped and drained to the sewage reservoir and naturally flows into the clean water reservoir after being settled, after the water level in the clean water reservoir reaches a certain height, the water level sensor sends out a signal, and the remote automatic control water pumping pump connected with the water level sensor is opened and starts to work; meanwhile, an automatic control gate valve at the water suction pump and an automatic opening and closing gate valve on a communicating pipe at the highest point of the drainage pipe are opened. When water overflows the whole water pipe, overflows from the highest communicating pipe and triggers the water level sensor, the highest gate valve is automatically closed, meanwhile, the lowest gate valve outside the remote control hole is automatically ...

Water storage tank suction pipe for booster pump device

... 수원(水原)으로부터 물을 퍼 올리는 밸브 및 파이프관의 구성 및 형태를 개선하여, 높은 압력에서도 사용 가능하며 누수를 방지하고, 상기 수원이 되는 저수조의 깊이가 10M 이상이 되더라도 별도의 수중펌프 없이 사용할 수 있는 저수조 흡입관을 제공한다. 상기의 저수조 흡입관은 제1관로와 제2관로로 구분되고, 제1관로의 형태를 'U'자 형태로 형성하며, 물이 인입되는 관로의 단부에 설치하는 밸브를 판체크밸브로 하여 소음을 방지하면서도 높은 압력에서도 사용 가능하고, 'U'자형 제1관로 내에 마중물을 형성하여 관로 내부로 이물질이 침투되는 것을 방지한다.

SYSTEM AND METHOD FOR MONITORING A MECHANICAL CONDITION OF A RECIPROCATING COMPRESSOR BY MEASURING INHERENT OPERATING STRAIN OF A COMPRESSOR ASSEMBLY

PURPOSE: A non-invasive system and method for monitoring a mechanical condition of a reciprocating compressor are provided to determine cylinder pressure using inherent strain of parts of a compressor assembly, thereby obtaining valuable information about valve and packing performance by monitoring the cylinder pressure. CONSTITUTION: A system and a method for monitoring a mechanical condition of a reciprocating compressor(10) including a compressor frame(12), a pressure chamber(14), and a pressure chamber head(16), comprises a plurality of tie bolts(18), an elongation member, and a sensor(26). The tie bolts are fastened between the compressor frame and the compressor chamber head. The sensor assembly, fixed one of the tie bolts, comprises a rod clamp(20), and a sensor clamp(22) fastened to one of the tie bolts and spaced away from each other. The elongation member is positioned to extend in cooperation with an extension of the tie bolts, including a target rod(24) connected between the ...

FLUID TRANSMITTING DEVICE

HYDRAULIC DRIVE SYSTEM FOR A CONSTRUCTION MATERIAL PUMP, AND CONSTRUCTION MATERIAL PUMP

A hydraulic drive system (100) for a construction material pump (100) comprising: - a hydraulic circuit (101) for hydraulic fluid (HF); - a feed pump (2), which is designed to feed hydraulic fluid (HF) into the hydraulic circuit (101); - at least one controllable pressure-limiting valve unit (6, 24), which is designed for variable adjustment of a limit pressure (p30, p31/32) of hydraulic fluid (HF) of at least one portion (30, 31, 32) of the hydraulic circuit (101) within a pressure range (pmin, pmax); and - a control unit (27), which is designed to control the pressure-limiting valve unit (6, 24) according to at least one operating parameter (BP) of the hydraulic drive system (100) and/or according to the hydraulic fluid (HF) in such a way that the pressure-limiting valve unit (6, 24) adjusts the limit pressure (p30, p31/32) of the portion (30, 31, 32) of the hydraulic circuit (101).

COMPRESSOR WITH PRESSURE LIMITING

A compressor unit in a portable compressed air source, comprising a reciprocating piston compressor which is driven by a slider crank mechanism and has a piston which is moved in reciprocation in a cylinder, said piston delimiting a compression chamber which has a first dead air volume. The cylinder exit is closed off by a cylinder head with an exhaust valve, and the compression chamber can be connected by a valve to at least one other dead air volume.

Multistage compressors for pet bottle blowing processes

A multistage reciprocating air compressor compresses air to an elevated pressure level discharge with an intermediate pressure level discharge for use in blow molding of PET bottles and similar products. The air compressor has a first, second and third reciprocating piston stages with first, second and third actuators operable in response to respective sensed discharge pressure levels from the discharges to actuate inlet unloading elements.

Flow control valve for a pressure washer

A pressure washer is powered by a prime mover, e.g., an electric motor or an internal combustion engine, and has a flow control valve. The valve has a housing containing a piston assembly and the assembly has a mechanism coupled to it for controlling prime mover power. The piston assembly includes a first piston sealing against the housing and dividing the housing interior into two chambers. Such first piston is spring-biased to a first position during periods when no output flow is being demanded from the washer. The assembly also has a second piston spring-biased to seal against the first piston during periods of no flow. When flow is demanded by opening the nozzle, the pressure in the second chamber diminishes. And when the difference between the pressure in the second chamber and that in the first chamber exceeds a predetermined value, the assembly shifts to a second position, causing the mechanism to actuate the prime mover.

Vacuum-driven fluid delivery device with controlled vacuum pressure release

A fluid delivery device includes: a first chamber configured to receive fluid from a fluid reservoir; a second chamber configured generate a vacuum therein to apply pressure to the fluid in the first chamber to enable the fluid in the first chamber to be output from the fluid delivery device; and a flow control member configured to allow the fluid in the first chamber to flow through the flow control member into the fluid reservoir at a predetermined flow rate to decrease the vacuum in the second chamber.

Piston Compressor with a Closing Device for the Outlet Line

A piston compressor for compressing a gas, which optionally can be disconnected from a drive device by a clutch, has an inlet valve, which is arranged between an inlet line for gas to be compressed and a compression chamber of the piston compressor, and an outlet valve, which is arranged between the compression chamber of the piston compressor and an outlet line for compressed gas. The piston compressor includes a closing device which closes the outlet line with respect to the compression chamber.

COMPRESSOR AND METHOD OF OPERATING SAME

Provided is a compressor including: a compressor body 3 that has a motor 2 and compresses air; an aftercooler 5 for cooling the compressed air supplied from the compressor body 3; a dryer 6 for dehumidifying the compressed air flowing out from the aftercooler 5; a drain discharge valve 11 for discharging a drain from the dryer 6; a first pressure sensor 12 for measuring air pressure downstream of the aftercooler 5; and a control device 7 having a rotation-speed adjusting unit 7a that drives the motor 2 at second acceleration smaller than first acceleration, the first acceleration being rated acceleration of the motor 2, when a pressure value Pd measured by the first pressure sensor 12 is less than a first threshold value predetermined at startup of the motor 2.

PISTON COMPRESSOR WITH A CLOSING DEVICE FOR THE OUTLET LINE

METHOD FOR OPERATING A PRESSURE CONTROL SYSTEM COMPRISING A MULTI-STAGE COMPRESSOR, AND PRESSURE CONTROL SYSTEM

КОМПРЕССОРНАЯ СИСТЕМА И СПОСОБ ЕЕ ЭКСПЛУАТАЦИИ

Изобретение относится к области автомобилестроения, в частности к компрессорным системам грузовых автомобилей с приводным двигателем. Компрессорная система содержит компрессор для обеспечения сжатым воздухом грузового автомобиля с приводным двигателем, имеющим турбонагнетатель. Компрессор компрессорной системы выполнен с возможностью всасывания предварительно сжатого посредством турбонагнетателя воздуха через первый подвод для воздуха и с возможностью всасывания не сжатого предварительно воздуха через второй подвод для воздуха. Способ управления компрессорной системой с компрессором заключается во всасывании посредством компрессора предварительно сжатого воздуха, подготовленного турбонагнетателем, через первый подвод для воздуха ниже регулируемого порога давления наддува. При этом не сжатый предварительно воздух посредством компрессора всасывают через второй подвод для воздуха выше регулируемого порога давления наддува. Достигается увеличение транспортируемого объема воздуха при низком ...

СИСТЕМА ПОДАЧИ ВОЗДУХА СО СНИЖЕННЫМИ УРОВНЯМИ ВЫТЕКАНИЯ МАСЛА В КОМПРЕССОРЕ

Устройство предназначено для использования в системах подачи воздуха для пневматических тормозов грузовых автомобилей и других средств. Система подачи воздуха содержит компрессор, имеющий камеру сжатия, впускное отверстие, через которое воздух поступает в камеру сжатия, и выпускное отверстие, через которое воздух выходит из камеры сжатия. Разгрузочное устройство позволяет компрессору находиться в ненагруженном состоянии, когда поддерживается требуемое давление воздуха в системе. Запорный клапан препятствует прохождению поступающего воздуха к впускному отверстию компрессора, когда компрессор находится в ненагруженном состоянии. Источник сжатого воздуха подает сжатый воздух к впускному отверстию компрессора, по крайней мере, когда запорный клапан препятствует прохождению поступающего воздуха к впускному отверстию компрессора. 4 н. и 18 з.п. ф-лы, 2 ил.

Method for operating e.g. gas conveyer system, involves opening regulating valve of operating compressor during operating shift, based on control deviation between target and actual values of controller

The surge limit regulating valves (9,10) of operating and standby compressors (1,2) are opened and closed by surge limit regulators (11,12), when operating the previously active operating compressor and previously inactive standby compressor. The constant delivery pressure or constant volume flow in discharge pressure line (4) is adjusted by controllers (13,14) during operating shift when one of controllers is active. The regulating valve of operating compressor is opened during operating shift, based on control deviation between target and actual values of controller (14). An independent claim is included for a control system for conveyer system.

Selbsttaetige Anhebevorrichtung fuer das niederdrucksaugventil bei Kolbenpresspumpen

WEGWERFBARE INFUSIONSKASSETTE MIT PUMPENKAMMER SOWIE TRIEBWERK DAFUER.

Klimaanlage und Verfahren zur Regelung einer solchen Anlage

Control for hydraulic pump motor for motor vehicle hybrid drive hydraulically switchable pump with control valve for pump fluid flow

The control is for a hydraulic pump (3) motor (2) of a motor vehicle hybrid drive with an internal combustion engine and electric motor. There is a clutch assembly (5) with a hydraulically switchable clutch (6) and the control regulates the fluid (7) passed through the pump. The hydraulically switchable clutch has a control valve (8) for the pump fluid flow. The hydraulically switchable clutch can be brought into one position by a return spring (10).

Устройство для регулирования производительности поршневого компрессора

Полезная модель относится к поршневым компрессорам. В устройстве для регулирования производительности дополнительная полость 2 и рабочая полость 4 цилиндра сообщаются через отверстие 5 в крышке 3 и установленные в корпусе 1 седло 6 клапана и подвижный запорный элемент 7 клапана. На свободном торце корпуса 1 установлен пневматический мембранный механизм 8, содержащий эластичную мембрану 9 и опорный диск 11. С седлом 6 клапана неразъемно соединен радиальными ребрами 14 цилиндрический стакан 15, у которого внутренняя полость 16 открыта со стороны запорного элемента 7, а в запорном элементе 7 по его оси выполнено ответное стакану 15 цилиндрическое гнездо 17. Во внутренней полости 16 установлена винтовая пружина сжатия 18. Подвижный запорный элемент 7 штоком 19 соединен с опорным диском 11. Обеспечивается упрощение конструкции и повышение надежности устройства, а также повышение точности сопряжения подвижного запорного элемента 7 с седлом 6 клапана. Ц 1 174869 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ 1 11 се ао за а (1 7 ВУ 174 889 1 (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ РОЯВ 49/03 (2006.01) (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016146036, 23.11.2016 (24) Дата начала отсчета срока действия патента: 23.11.2016 Дата регистрации: 08.11.2017 Приоритет(ы): (22) Дата подачи заявки: 23.11.2016 (45) Опубликовано: 08.11.2017 Бюл. № 31 Адрес для переписки: 353204, Краснодарский край, ст-ца Динская, а/я 28, для ООО "Тегас", патентоведу Ежак А.Н. (72) Автор(ы): Ворошилов Игорь Валерьевич (КП) (73) Патентообладатель(и): Общество с ограниченной ответственностью "Гегас" (КО) (56) Список документов, цитированных в отчете о поиске: ФРЕНКЕЛЬ М.И. ПОРШНЕВЫЕ КОМПРЕССОРЫ, Л.Машиностроение, 1969, с.587-592. ЗЧ 1160109 А\Т, 07.05.1985. 5Ц 1092298 А, 15.05.1984. РЕ 612250 С, 16.04.1935. (54) УСТРОЙСТВО ДЛЯ РЕГУЛИРОВАНИЯ ПРОИЗВОДИТЕЛЬНОСТИ ПОРШНЕВОГО КОМПРЕССОРА (57) Реферат: Полезная модель относится к поршневым компрессорам. В устройстве для регулирования ...

Насосная станция

Насосная станция предназначена для подачи рабочей жидкости в виде масла в исполнительные гидравлические механизмы, работающие в условиях необходимости защиты от воспламенения, преимущественно в условиях подземных горных выработок при добыче полезного ископаемого с наличием взрывоопасной окружающей среды. Обеспечивается большая безопасность работы находящейся вблизи исполнительных механизмов горных машин насосной установки при использовании масла для питания исполнительных гидравлических механизмов в условиях наличия взрывоопасной окружающей среды с обеспечением тепловой защиты гидросистемы и защиты от утечек без значительного усложнения конструкции и при совмещении элементов устройств аварийного отключения двигателя и включения и отключения подачи масла напорной гидролинией гидронасоса. Имеется гидронасос с приводом от двигателя, выполненного в виде гидромотора. Имеется маслобак, напорная и всасывающая из маслобака масляные гидролинии гидронасоса, сливная в маслобак гидролиния. Напорная и сливная гидролинии гидромотора подключены, соответственно, к внешним подводящим и отводящим рабочую жидкость на водной основе напорной и сливной гидролиниям. Имеется устройство аварийного отключения двигателя и устройство включения и отключения подачи масла напорной гидролинией гидронасоса, выполненные следующим образом. Напорная гидролиния гидромотора подключена к гидромотору в направлении в нему посредством параллельных друг к другу устройств, одно из которых выполнено с функцией крана с наличием внешнего управления, а другое выполнено с функцией нормально закрытого гидравлически управляемого крана с управляющей полостью, сообщенной с напорной гидролинией гидронасоса. Напорная гидролиния гидронасоса имеет подключение к маслобаку в направлении к нему посредством параллельных друг к другу устройств, одно из которых выполнено с функцией крана с наличием внешнего управления, а другое выполнено в виде плавкого предохранителя, способного сообщать напорную гидролинию гидронасоса с ...

Valve actuator control system and method of use

A valve actuator control system for use with a valve actuator may include two pump assemblies, two control valve assemblies, two transducers, a fluid reservoir, and a controller assembly. The controller assembly may actuate the pump assemblies to direct fluid from the fluid reservoir to the valve actuator, and may actuate the control valve assemblies to direct fluid from the valve actuator to the fluid reservoir. A method of actuating a valve actuator using a valve actuator control system may comprise sending a signal to the valve actuator control system, injecting pressurized fluid from a fluid reservoir of the valve actuator control system into a first chamber of the valve actuator, discharging pressurized fluid from a second chamber of the valve actuator into the fluid reservoir, and actuating the valve actuator from a first position to a second position.

Method and apparatus for controlling multiple variable displacement hydraulic pumps

A method and apparatus for controlling discharge pressure and pump displacement of a plurality of variable displacement hydraulic pumps having connected discharge ports is provided. Each pump includes a swashplate and a control valve for controlling an angle of inclination of the swashplate. A desired first pump displacement control law is determined for a first pump and determined a desired second pump discharge pressure control law for a second pump. The first control law is used to determine a first intermediate control variable. The second control law is used to determine a second intermediate control variable. The control of the first and second pumps are combined using the first and second intermediate control variables. A desired first control valve setting for the control valve of the first pump is determined using the combined first and second intermediate control variables and the first control law. A desired second control valve setting for the control valve of the second pump is determined using the combined first and second intermediate control variables and the second control law.

INDUSTRIAL CLEANING SYSTEM AND METHODS RELATED THERETO

Embodiments of the invention relate to an industrial cleaning system and related methods. The system and methods utilize propelled media to clean equipment and facilities. 1. A method of cleaning , comprising:propelling a sublimable media in a first direction through a discharge wand having an operator held end and a discharge end;inserting the discharge end of the wand into coils of a boiler;impinging on an inner surface and an outer surface of a coil of the boiler with the sublimable media, wherein the sublimable media exits the discharge end of the wand in at least one second direction different from the first direction; andwherein the media subsequently dissipates or is consumed.2. The method of claim 1 , wherein the discharge end of the wand comprises a nozzle with an angle between the first direction and the second direction of about 45 to about 85.3. The method of claim 1 , wherein the media comprises carbon dioxide pellets or liquid nitrogen.4. The method of claim 1 , wherein the object comprises biofuel production equipment.5. The method of claim 1 , wherein the discharge wand is straight and at least three feet long.6. The method of claim 1 , wherein the coils comprise tubes in a biofuel production plant dryer.7. The method of claim 1 , wherein propelling comprises transferring the media with a transfer gas.8. The method of claim 7 , wherein the transfer gas comprises air.9. The method of claim 1 , wherein contacting comprises the sublimable media physically contacting residue or debris in contact with the surfaces.10. The method of claim 1 , wherein contacting comprises the media sublimating upon contact with the surfaces or residue in contact with the surfaces.11. A cleaning system claim 1 , comprising:media source, for storing and providing a media;a discharge wand;a propellant, for moving the media from the source to the discharge wand; and a body;', 'an end, positioned on the distal end of the body; and', 'a discharging orifice;', 'wherein the ...

Compressor System for a Compressed Air Supply Arrangement

A compressor system for a compressed-air supply arrangement includes an adjustable throttle device arranged in the suction line of the compressor. The throttle device is adjustable between a fully open load position and an idle position with a predefined narrowed throttle cross section. The idle power of the compressor is reduced as a result of the reduction of the pressure level downstream of the throttle device without additional lines, filters or the like.

PLASMA SPRAY APPARATUS INTEGRATING WATER CLEANING

An integrated apparatus and method comprises a plasma gun with a water supply, treatment fluid supply, and controls, the combination of which is adapted for directing a plume onto a surface of a three-dimensional part to treat the surface; and for controlling injection of water into the plume with the plume directed onto an adjacent surface to clean debris and undesired material from the adjacent surface; and for subsequently directing the plume (without water) onto the adjacent surface to treat the adjacent surface. The apparatus and method are particularly useful in suspension plasma spray systems, but are not believed to be limited to that. 1. A plasma spray surface treatment apparatus comprising:a plasma gun constructed to generate a plume for treating a surface of a three-dimensional part;a liquid supply including water;a water line for transferring the water from the liquid supply into the plume;a treatment fluid supply;a treatment fluid line for transferring the treatment fluid from the treatment fluid supply into the plume; andat least one control for controlling flow of the water and of the treatment fluid into the plume.2. The apparatus of claim 1 , wherein the treatment fluid includes a suspension.3. An integrated method of plasma surface treating process comprising:injecting water into a plume of a plasma gun and directing the plume onto a surface to clean debris and undesirable particles from the surface.4. The method defined in claim 3 , including directing the plume with water onto a three-dimensional part to clean the surface claim 3 , and thereafter treating the surface with the plume without the water.5. The method defined in claim 3 , including treating a portion of the surface with the plume before injecting the water claim 3 , and thereafter directing the plume with the injected water onto an adjacent portion of the surface to clean the adjacent surface.6. The method of claim 3 , wherein the treatment fluid includes a suspension. This ...

Hydraulic System and Pressure Limiting Valve

A hydraulic system has at least one consumer and at least one hydraulic pump. A pressure limiting valve for limiting the maximum system pressure is connected with the at least one hydraulic pump, and the pressure limiting valve is pilot-controlled for switching a bypass. The invention also concerns a pressure limiting valve for limiting the system pressure inside such a hydraulic system. 1. A hydraulic system comprising:at least one consumer,at least one hydraulic pump, anda pressure limiting valve for limiting a maximum system pressure connected with the at least one hydraulic pump,wherein the pressure limiting valve is pilot-controlled for switching a bypass.2. The hydraulic system according to claim 1 , wherein pilot control of the pressure limiting valve provides for a proportional control of the system pressure to be limited.3. The hydraulic system according to claim 1 , wherein pilot control of the pressure limiting valve is effected electrically claim 1 , electro-hydraulically claim 1 , or electrically and electro-hydraulically.4. The hydraulic system according to claim 1 , wherein pilot control of the pressure limiting valve is effected hydraulically claim 1 , pneumatically claim 1 , or hydraulically and pneumatically.5. The hydraulic system according to claim 1 , wherein the pressure limiting valve has a cartridge design claim 1 , a gate design claim 1 , or a cartridge and gate design.6. The hydraulic system according to claim 1 , wherein pilot control of the pressure limiting valve acts against at least one of a spring restoring force and a system pressure.7. The hydraulic system according to claim 1 , wherein the pressure limiting valve does not allow an increase of the system pressure without actuation.8. A hydraulic system comprising:at least one consumer,at least one hydraulic pump, anda pressure limiting valve for limiting a maximum system pressure connected with the at least one hydraulic pump,wherein the pressure limiting valve is pilot-controlled ...

PUMP HAVING A THROTTLE

A pump includes an outflow channel configured for discharging fluid out of the pump. The outlet area thereof is formed by a throttle. The throttle includes a spring element configured to change the size of the outlet area of the outflow channel. 1. A pump , comprising:a cylinder member defining an outflow channel configured to discharge fluid out of the pump, the outflow channel having a passage area defined by a throttle,wherein the throttle includes a spring element configured to change the size of the passage area of the outflow channel.2. The pump as claimed in claim 1 , wherein the passage area has a bypass area that cannot be closed by the spring element.3. The pump as claimed in claim 2 , wherein the bypass area is formed next to the spring element along the direction of movement thereof.4. The pump as claimed in claim 1 , wherein the spring element is formed by a leaf spring.5. The pump as claimed in claim 4 , wherein the leaf spring projects in an arc shape into the outflow channel.6. The pump as claimed in claim 4 , wherein the leaf spring rests on a wall of the outflow channel by at least one section of the leaf spring that is of rounded design.7. The pump as claimed in claim 1 , wherein at least one offset is formed in the outflow channel claim 1 , the at least one offset being configured to position the spring element in the longitudinal direction of the outflow channel.8. The pump as claimed in claim 1 , wherein the cylinder member is a pump cap claim 1 , the pump cap having an end into which the outflow channel with the spring element arranged therein is formed.9. The pump as claimed in claim 1 , wherein the pump is formed along a cylinder axis claim 1 , and the outflow channel with the spring element arranged therein is oriented radially with respect to the cylinder axis.10. The use of a pump as claimed in wherein the pump is used in a motor vehicle brake system. The invention relates to a pump having an outflow channel for discharging fluid out of ...

RECIPROCATING PUMP VALVE ASSEMBLY WITH THERMAL RELIEF

A reciprocating pump comprises a cylinder, an inlet check valve, a piston, an outlet check valve and a purge circuit. The cylinder has a first end and a second end. The inlet check valve is disposed proximate a first end of the cylinder. The piston is disposed within the cylinder between the inlet check valve and the second end. The outlet check valve is disposed within the piston. The purge circuit extends across the inlet check valve and the outlet check valve to fluidly couple the first end and the second end. 1. A piston pump comprising:a cylinder comprising an inlet and an outlet;a piston disposed within the cylinder between the inlet and the outlet;a first check valve disposed between the piston and the inlet;a first bypass passage extending through the first check valve; anda second bypass passage extending from the first check valve along the cylinder.2. The piston pump of wherein the first check valve comprises:a ball seat disposed proximate the inlet;a ball disposed within the ball seat; anda spring biasing the ball into the ball seat;wherein the first bypass passage extends through the ball seat.3. The piston pump of wherein the first bypass passage comprises a hole extending internally through the ball seat away from a mate face with the ball.4. The piston pump of wherein the piston comprises: a diameter to mate with that of the cylinder; and', 'a height;, 'a disk-shaped head comprisinga seal extending around the head to engage the cylinder;5. The piston pump of wherein the second bypass passage is longer than the height of the disk-shaped head.6. The piston pump of and further comprising a plurality of second bypass passages.7. The piston pump of wherein the second bypass passage comprises a groove extending along an inner surface of the cylinder.8. The piston pump of and further comprising a second check valve disposed within the piston.9. The piston pump of and further comprising:an air motor having a rod coupled to the piston within the cylinder.10. ...

PRESSURE WASHER WITH ELECTRONIC GOVERNOR

A pressure washer structured to output a pressurized fluid including an engine having a throttle plate structured to move between a closed position and a wide-open position, a pump driven by the engine and having an inlet and an outlet that discharges fluid, a spray gun having a spray gun inlet fluidly coupled to the outlet of the pump and a nozzle structured to discharge the fluid and having selectable nozzle orifices, and an electronic governor system structured to control a speed of the engine. The electronic governor system includes a carburetor, a motor coupled to the throttle plate to move the throttle plate between the closed and wide-open position, and a controller coupled to the motor to control the motor to control the speed of the engine in response to a selection of at least one of the one or more selectable nozzle orifices. 1. A pressure washer structured to output a pressurized fluid comprising:an engine having a throttle plate structured to move between a closed position and a wide-open position;a pump having an inlet and an outlet that discharges fluid, wherein the pump is driven by the engine and structured to pressurize the fluid;a spray gun having a spray gun inlet fluidly coupled to the outlet of the pump, and a nozzle structured to discharge the fluid, wherein the nozzle includes one or more selectable nozzle orifices; and a carburetor structured to mix incoming air with fuel for combustion in one or more cylinders of the engine;', 'a motor coupled to the throttle plate and structured to move the throttle plate between the closed and wide-open position to control the flow of an air/fuel mixture from the carburetor; and', 'a controller coupled to the motor to control the motor to control the speed of the engine in response to a selection of at least one of the one or more selectable nozzle orifices., 'an electronic governor system structured to control a speed of the engine, the electronic governor system comprising2. The pressure washer of claim ...

RELIEF VALVE ASSEMBLY AND COMPONENTS THEREOF

A relief valve assembly is provided for use in connection with high pressure and ultrahigh pressure pumps. The relief valve assembly includes a valve pin having an engagement portion with a tapered surface and a valve seat having a valve pin receiving aperture defining a tapered surface on the valve seat to sealingly mate with the engagement portion of the valve pin when the valve pin is seated against the valve seat in a seated configuration. The valve seat further includes at least one bypass passage that extends from the valve pin receiving aperture to an exterior surface of the valve seat such that when the valve pin is displaced away from the seated configuration fluid can pass through the bypass passage and an annular space created between the engagement portion of the valve pin and the valve seat. Systems incorporating the relief valve assembly are also provided. 1. A relief valve assembly comprising:a valve pin having an engagement portion with a tapered surface; anda valve seat having a valve pin receiving aperture defining a tapered surface on the valve seat to sealingly mate with the engagement portion of the valve pin when the valve pin is seated against the valve seat in a seated configuration, the valve seat further having at least one bypass passage that extends from the valve pin receiving aperture to an exterior surface of the valve seat such that when the valve pin is displaced away from the seated configuration fluid can pass through the bypass passage and an annular space created between the engagement portion of the valve pin and the valve seat.2. The relief valve assembly of claim 1 , further comprising:a housing having a fluid outlet chamber, the valve seat positioned within the housing such that when the valve pin is displaced away from the seated configuration the bypass passage and the annular space created between the engagement portion of the valve pin and the valve seat are each in fluid communication with the fluid outlet chamber.3. The ...

Compressor gas cutoff

Embodiments of a compressor cutoff are presented. In an embodiment, the present invention includes apparatus for cutting off the flow of gas/liquid in the event of compressor failure or breakdown. In this embodiment, gas/liquid flows from its source through one or more passageways into a first input chamber, and also through one or more other passageways into a second input chamber, where the first and second input chambers are separated by a stop plunger. During the down-stroke of the compressor's piston, gas/liquid in the first chamber passes (or is drawn) through an inlet valve of the piston bore, and during the up-stroke of the piston that gas/liquid is forced through an outlet valve to a tank or other compressed gas/liquid receptacle. So long as the compressor operates normally, the pressure in the two input chambers (i.e., on each side of the stop plunger) will be substantially equal, thereby keeping the stop plunger in place. If, however, the compressor fails in a manner that exposes gas/liquid in the piston bore to the atmosphere, or otherwise results in a decrease in pressure in the piston bore, the pressure in the first input chamber will fall below the pressure in the second input chamber, thereby causing the stop plunger to move to a position in which it blocks the flow of gas/liquid from entering the inlet valve of the piston bore.

UNLOADER FOR A COMPRESSOR AND SERVICING THEREOF AND COMPRESSOR PROVIDED WITH AN UNLOADER

Unloader for a compressor, said unloader () comprising a housing () with an inlet () and an outlet (), and whereby the unloader () is further provided with a piston rod () which is arranged moveably in a reciprocating manner in the housing (), whereby on one end () of the piston rod () a valve () is provided to be able to close the outlet () and whereby on the other end () of the piston rod () a piston () is arranged, the piston being arranged moveably in a reciprocating manner in a thereto provided cavity () of the unloader (), said cavity () being at least partially delimited by a lid () which is provided on the housing () and which is also part of the unloader (), whereby sealing means () are provided for the leakage-free movement of the piston () in said cavity (), whereby the cavity () in which the piston () is arranged moveably in a reciprocating manner is provided at least partially in the lid (). 111-. (canceled)121234152557455891910211189981081110ab. An unloader for a compressor , said unloader () comprising a housing () with an inlet () and an outlet () , and whereby the unloader () is further provided with a piston rod () which is arranged moveably in a reciprocating manner in the housing () , whereby on one end () of the piston rod () a valve () is provided to be able to close the outlet () and whereby on the other end () of the piston rod () a piston () is arranged , the piston being arranged moveably in a reciprocating manner in a thereto provided cavity () of the unloader () , said cavity () being at least partially delimited by a lid () which is provided on the housing () and which is also part of the unloader () , whereby sealing means () are provided for the leakage-free movement of the piston () in said cavity () , wherein the cavity () in which the piston () is arranged moveably in a reciprocating manner is completely located or integrated in the lid () , and the piston () and the sealing means () are freely accessible when the lid () is removed. ...

Control Valve For A Variable Displacement Compressor

In a control valve, the spring load of a spring, which biases a main valve element in a valve opening direction, is regulated, for instance. This allows a range of suction pressures Ps, where a main valve and a sub-valve are simultaneously closed until a sub-valve element is lifted from a sub-valve seat after a main valve element has been seated on a main valve seat, to be set as a deadband. The control valve is configured such that the value of a suction pressure Ps with which to open the sub-valve after the closing of the main valve and the pressure values at which the deadband takes place are set variably by the setting of a value of current supplied to the solenoid. 1. A control valve for a variable displacement compressor for varying a discharging capacity of the compressor for compressing refrigerant led into a suction chamber and discharging the compressed refrigerant from a discharge chamber , by regulating a flow rate of the refrigerant led into a crankcase from the discharge chamber , the control valve comprising: a discharge chamber communication port that communicates with the discharge chamber;', 'a crankcase communication port that communicates with the crankcase;', 'a suction chamber communication port that communicates with the suction chamber;', 'a main passage that communicates between the discharge chamber communication port and the crankcase communication port; and', 'a sub-passage that communicates between the crankcase communication port and the suction chamber communication port;, 'a body havinga main valve seat provided in the main passage;a main valve element configured to open and close a main valve by touching and leaving the main valve seat;a power element configured to supply a drive force in a valve opening direction to the main valve element according to a displacement amount of a pressure-sensing member, the power element including the pressure-sensing member for sensing a predetermined pressure-to-be-sensed and developing a ...

Compressor For A Refrigeration Circuit Of A Domestic Refrigerator, Domestic Refrigerator With A Compressor And Method For Operating A Compressor Of A Domestic Refrigerator

A compressor for a refrigeration circuit of a domestic refrigerator includes a piston being moveable within a compression chamber of a cylinder for compressing a refrigerant. The piston is contactlessly mounted in radial direction relative to the cylinder by a gas pressure bearing formed from the refrigerant. An inlet valve regulates a volume flow of uncompressed refrigerant from a low-pressure inlet of the compressor into the compression chamber and an outlet valve regulates a volume flow of compressed refrigerant from the compression chamber to a high-pressure outlet of the compressor. A stop valve between the low-pressure inlet and the high-pressure outlet prevents a backflow of refrigerant from the high-pressure outlet to the low-pressure inlet when the compressor is deactivated. A domestic refrigerator including a compressor and a method for operating a compressor for a refrigeration circuit of a domestic refrigerator are also provided. 113-. (canceled)14. A compressor for a refrigeration circuit of a domestic refrigerator , the compressor comprising:a low pressure inlet and a high pressure outlet;a cylinder having a compression chamber;a piston being movable within said compression chamber to compress a refrigerant, said piston having a radial direction, and said piston being contactlessly supported by a gas pressure bearing formed by the refrigerant in said radial direction opposite said cylinder;an inlet valve for regulating a volume flow of uncompressed refrigerant from said low pressure inlet into said compression chamber;an outlet valve for regulating a volume flow of compressed refrigerant from said compression chamber to said high pressure outlet; anda stop valve disposed between said low pressure inlet and said high pressure outlet, for preventing the refrigerant from flowing back from said high pressure outlet to said low pressure inlet when the compressor is deactivated.15. The compressor according to claim 14 , which further comprises a gas bearing ...

MUD PUMP SEALING ASSEMBLY

Various assemblies that can be used in a mud pump with a plunger-style piston to reduce seal failures, to offer control in variability of the circumference of the piston to thereby control fluid pressure, and to provide visibility into seal condition during operation. In one embodiment, a sleeve that can vary the overall effective circumference of the piston enables fluid pressure control. In some embodiments, seal failure within a pump can be monitored via a drain port that would receive drilling fluid leaking past a seal during operation of the pump. A discharge valve can be provided between an inlet and an outlet of the mud pump to reduce the load on pump components during start-up. Additional systems, devices, and methods are also disclosed. 1. A mud pump , comprising:a housing;a crosshead disposed in the housing;a plunger piston having a first end engaging the crosshead and a second end including a piston rod;a seal, disposed about the plunger piston, that seals out drilling fluid in a fluid end of the mud pump; anda drain port that, upon failure of the seal, drains leaking drilling fluid.2. The mud pump according to claim 1 , further comprising a sleeve disposed about the second end of the plunger piston that increases the effective diameter of the second end claim 1 , wherein the seal is disposed about the sleeve as well as the plunger piston.3. The mud pump according to claim 1 , further comprising:an inlet of the fluid end;an outlet of the fluid end; anda discharge valve between the inlet and the outlet configured to allow fluid communication directly between the inlet and the outlet during start-up of the mud pump.4. The mud pump according to claim 1 , further comprising:a lubricated pad disposed about the plunger piston; andan injection port connected to a cavity disposed between the seal and the lubricated pad so as to enable the cavity to receive, from the injection port, water that washes the second end of the plunger piston.5. The mud pump according ...

METHOD AND SYSTEM FOR PRIORITIZING VEHICLE VACUUM

A vacuum prioritization system for a vehicle is disclosed. In one example, use and availability of vacuum provided via vacuum sources is allocated to higher priority vacuum operated actuators when a pressure in the vacuum system exceeds a threshold pressure. The lower priority vacuum operated actuators have access to vacuum supplied via the vacuum sources when pressure in the vacuum system is less than a threshold pressure. The approach may allow higher priority actuators to operate for an extended amount of time. 1. A vacuum prioritization method for a vehicle , comprising:providing vacuum via at least one vehicle vacuum source solely to a first actuator group when a pressure of a first vacuum reservoir is greater than a first threshold pressure;providing vacuum via the at least one vehicle vacuum source to the first actuator group and a second actuator group when the pressure of the first vacuum reservoir is less than the first threshold pressure; andsupplying vacuum to the second actuator group via a second vacuum reservoir when the pressure in the first vacuum reservoir is greater than the first threshold pressure.2. The vacuum prioritization method of claim 1 , where the at least one vacuum source includes an intake manifold of an engine and a vacuum pump or an ejector claim 1 , where the first actuator group and second actuator group are comprised of vacuum operated actuators claim 1 , and where the first vacuum reservoir is a brake booster reservoir.3. The vacuum prioritization method of claim 1 , where air flow between the first vacuum reservoir and the second vacuum reservoir is limited via an orifice or a valve that is controlled in response to a pressure of the first vacuum reservoir.4. The vacuum prioritization method of claim 1 , further comprising holding the second actuator group in an operating state when the pressure in the first vacuum reservoir is greater than the first threshold pressure and when a pressure in the second vacuum reservoir is ...

PRESSURE OVERSHOOTING PREVENTION SYSTEM FOR ELECTRONIC HYDRAULIC PUMP IN HYDRAULIC SYSTEM

The present disclosure relates to a pressure overshooting prevention system for an electronic hydraulic pump in a hydraulic system, in which a flow rate command is added (+), a discharge flow rate is subtracted (−), a displacement flow rate (Delta Q) is calculated, a first pressure command corresponding to the displacement flow rate (Delta Q) is generated, a working fluid pressure value corresponding to the discharge flow rate is generated, a limit pressure command is generated to limit an increasing gradient of the working fluid pressure value, a stall is determined based on a first rate of change of the flow rate command, and a second rate of change of the discharge flow rate, and the limit pressure command is set to a second pressure command when the stall is determined, and a small value of the first pressure command and the second pressure command is selected as a final pressure command so as to control an electronic proportional control valve, thereby reducing overshooting of the electronic hydraulic pump. 1. A pressure overshooting prevention system for an electronic hydraulic pump in a hydraulic system , comprising:a flow rate command calculating unit which adds (+) a flow rate command corresponding to required pressure, subtracts (−) a discharge flow rate discharged from an electronic hydraulic pump, and calculates a displacement flow rate;a flow rate control unit which generates a first pressure command corresponding to the displacement flow rate;a stall determining unit which determines a stall based on a first rate of change of the flow rate command, and a second rate of change of the discharge flow rate;a flow rate pressure generating unit which generates a working fluid pressure value corresponding to the discharge flow rate;a gradient limiting unit which generates a limit pressure command so as to limit an increasing gradient of the working fluid pressure value;a selecting unit which sets the limit pressure command to a second pressure command when a ...

WASHING DEVICE, HIGH-PRESSURE WASHING DEVICE, AND ADAPTER

A high-pressure washing device () includes a nozzle (). The nozzle () is configured to eject a high-pressure cleaning liquid. The cleaning liquid ejected from the nozzle () has a pulsation pressure. A variation rate of the pulsation pressure is more than or equal to 20%.

PRESSURE WASHER ACCESSORY TRAY

A pressure washer includes a mounting platform, a prime mover supported by the mounting platform, a pump driven by the prime mover, a frame configured to support the mounting platform, a handle extending upward from the mounting platform, a spray gun including a barrel, a handle, and a nozzle, and an accessory tray attached to the frame proximate the mounting platform, the accessory tray including a spray gun clip configured to hold the barrel and a spray gun receptacle configured to hold the nozzle. 1. A pressure washer , comprising:a mounting platform;a prime mover supported by the mounting platform;a pump driven by the prime mover;a frame configured to support the mounting platform;a handle extending upward from the mounting platform;a spray gun including a barrel, a handle, and a nozzle; and a spray gun clip configured to hold the barrel; and', 'a spray gun receptacle configured to hold the nozzle., 'an accessory tray attached to the frame proximate the mounting platform, the accessory tray comprising2. The pressure washer of claim 1 , further comprising a spray wand including a connector claim 1 , a wand nozzle claim 1 , and a conduit extending between the connector and the wand nozzle claim 1 , wherein the spray wand is configured to connect to the spray gun at the connector.3. The pressure washer of claim 2 , wherein the accessory tray further comprises a spray wand clip configured to hold the spray wand at the conduit.4. The pressure washer of claim 3 , wherein the accessory tray further comprises a protrusion on the spray wand clip configured to limit movement of the spray wand.5. The pressure washer of claim 4 , wherein the accessory tray further comprises a spray wand receptacle configured hold the connector.6. The pressure washer of claim 5 , further comprising a chemical supply container.7. The pressure washer of claim 6 , wherein the accessory tray further comprises a chemical container holder configured to hold the chemical supply container.8. The ...

High pressure pump having unitary discharge and relief valve

A valve body is provided with a discharge relief portion. A relief valve outlet is formed in an end face thereof on a central axis of the valve body. Discharge valve inlets are point-symmetrically formed with respect to the central axis. A discharge valve outlet is formed in another end face thereof and relief valve inlets are point-symmetrically formed with respect to the central axis. A discharge valve outlet and the discharge valve inlets communicate with each other. A flow of fuel from a pressurization chamber to a fuel discharge port is restricted by a discharge valve member capable of closing the discharge valve outlet. The relief valve outlet and the relief valve inlets communicate with each other. A flow of fuel from the fuel discharge port to the pressurization chamber is restricted by a relief valve member capable of closing the relief valve outlet.

Bypass and pressure adjustment valve

A bypass valve, comprising: a main conduit ( 10 ), comprising a first section ( 11 ) and a second section ( 12 ); a mobile control shutter ( 21 ); a bypass conduit ( 30 ) which places the main conduit ( 10 ) in communication with a discharge opening; a control element ( 31 ), mobile between a closed position, at which it closes the bypass conduit ( 30 ), and an open position, at which it opens the bypass conduit; a throttle element ( 40 ), interposed between the first section ( 11 ) and the second section ( 12 ), structured to produce a load loss which depends on the fluid flow rate in transit along the main conduit ( 10 ). The control element ( 31 ) is tubular-shaped and defines internally a section of the bypass conduit ( 30 ). The control element ( 31 ) is slidable along a housing ( 32 ) provided with a sealing seat ( 33 ). A passageway ( 34 ) is predisposed between the control element ( 31 ) and the housing ( 32 ) which places the first section ( 11 ) in communication with the second section ( 12 );

AUTOLIFT-RESISTANT PISTON ASSEMBLY FOR AN UNLOADER VALVE OF AN AIR COMPRESSOR

An autolift-resistant piston assembly is provided for an air compressor. The piston assembly comprises an unloader piston having an interior chamber. The piston assembly further comprises a first coil spring for biasing the unloader piston to a loaded position when the piston assembly is installed in the air compressor. The piston assembly also comprises an inner member disposed in the interior chamber of the unloader piston and including (i) a body portion, and (ii) a tapered end portion extending from the body portion and facing an unloader air passage of the air compressor when the piston assembly is installed in the air compressor. 1. An autolift-resistant piston assembly for an air compressor , the autolift-resistant piston assembly comprising:an unloader piston having an interior chamber;a first coil spring for biasing the unloader piston to a loaded position when the piston assembly is installed in the air compressor; andan inner member disposed in the interior chamber of the unloader piston and including (i) a body portion, and (ii) a tapered end portion extending from the body portion and facing an unloader air passage of the air compressor when the piston assembly is installed in the air compressor.2. A piston assembly according to claim 1 , wherein the tapered end portion of the inner member comprises a curved surface originating from a raised vertex.3. A piston assembly according to claim 2 , wherein the tapered end portion comprises a concave face.4. A piston assembly according to claim 1 , wherein the first coil spring is disposed between an inner circumferential surface of the unloader piston and an outer circumferential surface of the inner member.5. A piston assembly according to claim 1 , further comprising:a snap ring disposed on an end portion of the inner member and for maintaining the first coil spring compressed between the snap ring and an inner circumferential lip surface of the unloader piston.6. A piston assembly according to claim 1 , ...

Pump Control System Having Emergency Run Mode

A pump control system receives inputs from a low level fluid level sensor and a high level fluid level sensor. Based on inputs from the sensors, and in response to sensed trouble conditions, duplex pumping or pump specific simplex operation is restricted based on past and present pump current draws. 1. A pump controller comprising:control circuits, the control circuits include first and second fluid level sensor input ports; andfirst and second motor output ports coupled to the control circuitsat least one motor current sensor coupled between at least one motor output port and the control circuits, whereby the control circuits monitor at least one motor current and, responsive there to, adjust a motor drive process.2. A controller as in wherein the control circuits switch output electrical energy between output ports while monitoring motor current.3. A controller as in wherein the motor drive process includes one of duplex pumping or simplex pumping.4. A controller as in wherein duplex pumping claim 1 , or pump specific simplex operation is restricted based on past and present current draws5. A controller as in which includes first and second fluid level sensors.6. A system comprising:a multi-mode pump controller;at least two pumps coupled to the controller;a first water level sensor coupled to the controller;a second water level sensor coupled to the controller;wherein the controller operating in one mode and in response to a detected condition energizes both pumps simultaneously and, when one of the sensors detects an absence of water, switches to a simplex alternating mode of operation.7. A system as in which includes at least one pump current sensor wherein the controller adjusts a pumping sequence in real-time in response to signals from the current sensor.8. A system as in where in response to sensed currents claim 7 , the controller restricts duplex pumping.9. A system as in wherein the detected condition includes one of a level sensor failure claim 8 , or ...

RECIPROCATING COMPRESSOR HAVING CAPACITY REGULATION

A shutoff valve () which is switchable in a cycled manner for capacity regulation by temporarily shutting off the intake gas feed is designed as a multi-element ring valve, and is directly actuated by means of an electromagnet (). The actuating forces for switching the shutoff valve () may be kept small via pressure compensation from the intake gas feed () to behind the anchor plate ().

AUTOMATIC VALVE WITH A SPRING HOLDER RING

An automatic valve including a valve seat having first gas flow passages extending there through and a valve guard having second gas flow passages extending there through. The valve further comprises at least one shutter member movably arranged between the valve guard and the valve seat, at least one set of spring members biasing the at least one shutter member towards a closed position in sealing engagement with the valve seat to close the first gas flow passages, and at least one spring holder ring provided with a plurality of spring retention seats. Each spring member of the set of spring members is partially housed in a respective spring pocket formed in the valve guard and retained in a respective one of the spring retention seat.

FAULT DETECTION AND PREDICTION

A pump including one or more pumping chambers, one or more drive mechanisms for driving the one or more pumping chambers and a logic arrangement. The first pumping chamber of the one or more pumping chambers has a first inlet check valve, a first outlet check valve and a first temperature sensor. The logic arrangement is configured to identify a leak by applying logic to at least resistance-data indicative of a resistance of the first pumping chamber to the driving and temperature-data at least based on output from the first temperature sensor. 1. A pump including:two or more pumping chambers;one or more drive mechanisms for driving the two or more pumping chambers; anda logic arrangement;a first pumping chamber of the two or more pumping chambers having a first inlet check valve, a first outlet check valve and a first temperature sensor to measure a first temperature;a second pumping chamber of the one or more pumping chambers having a second inlet check valve, a second outlet check valve and a second temperature sensor to measure a second temperature;the logic arrangement being configured to identify a leak by applying logic; and mutually comparing the first temperature and the second temperature; and', 'mutually comparing a compression-stroke resistance of the first pumping chamber and a compression-stroke resistance of the second pump chamber., 'the logic including2. The pump of claim 1 , the first pumping chamber having a first plunger claim 1 ,a first cylinder and a first plunger seal; andthe second pumping chamber having a second plunger, a second cylinder and a second plunger seal.3. The pump of wherein a cross-sectional area of the first plunger is substantially equal to a cross-sectional area of the second plunger.4. The pump of wherein the logic is to locate the leak claim 2 , regardless of which the first plunger seal claim 2 , the first inlet check valve claim 2 , the first outlet check valve claim 2 , the second plunger seal claim 2 , the second inlet ...

Compressor Having an Energy Saving Apparatus, and Method for Relieving the Compressor

Compressor for generating compressed air for a commercial vehicle, having a housing with a piston chamber in a crankcase and a dead space which is configured at least in the cylinder head. The compressor has a valve device with a valve element which has an actuating section and a shut-off body for separating the dead space from the piston chamber, wherein the shut-off body can be lifted up from a valve seat in the direction of the piston chamber in order to open the valve device. The valve element is configured in one piece with the actuating section. 1. A compressor for generating compressed air for a utility vehicle , comprising:a housing with a piston space in a crankcase and with a dead space which is formed at least partially in a cylinder head of the compressor;a valve device with a valve element which has an actuating section and a shut-off body for separating the dead space from the piston space, wherein, in order to open the valve device, the shut-off body is liftable off, in the direction of the piston space, from a valve seat formed on a valve plate,whereinthe valve element is formed in one piece with the actuating section, and the valve plate is configured such that the valve element with the actuating section can be led through said valve plate in the direction of the cylinder head until the shut-off body is arranged on the valve seat and the actuating section is arranged in the cylinder head.2. The compressor as claimed in claim 1 , whereinthe valve element is mounted in a valve space of the cylinder head so as to be movable along the axis of the valve element, andthe valve space is delimited on a side averted from the piston space by the cylinder head.3. The compressor as claimed in claim 1 , whereinthe valve element is mounted in a valve space of the cylinder head so as to be movable along the axis of the valve element, andthe valve space is delimited on a side averted from the piston space by an intermediate plate.4. The compressor as claimed in ...

AIR OPERATED DIAPHRAGM PUMP

An air operated diaphragm pump is provided featuring a housing, a fluid passageway and an indicator arrangement. The housing is configured with an orifice. The fluid passageway responses to a vacuum force and provides fluid, such as syrup from a bag or container to a beverage dispenser, through the air operated diaphragm pump via the fluid passageway, and is configured with a suction plenum or channel formed by an enclosed space with an inside pressure that is greater than an external pressure of the outside atmosphere when the fluid is being provided through the air operated diaphragm pump via the fluid passageway. The suction plenum or channel is configured to be in fluidic communication with the orifice of the housing. The indicator arrangement is configured in relation to the orifice of the housing to communicate with the suction plenum or channel, and also configured to respond or activate when the vacuum force exceeds a predetermined level and provide a visual indication when the fluid is no longer being provided through the air operated diaphragm pump via the fluid passageway. 1. An air operated diaphragm pump comprising:a housing configured with an orifice;a gas passageway configured to provide gas through the air operated diaphragm pump in order to pump fluid through the air operated diaphragm pump;a fluid passageway configured to respond to the gas passing though the gas passageway and provide the fluid through the air operated diaphragm pump, and also configured with a suction plenum or channel in fluidic communication with the orifice of the housing; andan indicator arrangement configured in relation to the orifice of the housing to communicate with the suction plenum or channel, and also configured to respond or activate when a vacuum force exceeds a predetermined level and provide a visual indication when the fluid is no longer being provided through the air operated diaphragm pump via the fluid passageway.2. An air operated diaphragm pump according to ...

HIGH-PRESSURE WASHING DEVICE

A high-pressure washing device includes a nozzle (), a motor () a battery (), and a pump (). The nozzle () is configured to eject a high-pressure cleaning liquid. The battery () is configured to supply electric power to the motor (). The pump () is configured to be driven by the motor () to eject the cleaning liquid from the nozzle (). An ejection pressure of the cleaning liquid from the nozzle () is set to more than or equal to 3 Mpa. 1. A high-pressure washing device comprising:a nozzle configured to eject a high-pressure cleaning liquid;a motor;a battery configured to supply electric power to the motor; anda pump configured to be driven by the motor to eject the cleaning liquid from the nozzle,wherein an ejection pressure of the cleaning liquid from the nozzle is set to more than or equal to 3 Mpa.2. The high-pressure washing device according to claim 1 , wherein the battery is configured to supply more than or equal to 200 W electric power to the motor.3. The high-pressure washing device according to claim 1 , wherein the battery is configured to supply more than or equal to 40 Wh electric power to the motor.4. The high-pressure washing device according to claim 1 , wherein the battery is a lithium ion battery claim 1 ,wherein an average discharge current flowing to the lithium ion battery is set to more than or equal to 20 A.5. The high-pressure washing device according to claim 1 , wherein an average discharge current flowing to the battery is set to less than or equal to 30 A.6. The high-pressure washing device according to claim 1 , further comprising a housing configured to accommodate the battery claim 1 , wherein the battery is configured to be attached to and detached from the housing.7. The high-pressure washing device according to claim 6 , wherein the housing defines an inner space therein claim 6 , and the housing comprises a partitioning plate for dividing the inner space into a motor chamber for accommodating the motor claim 6 , a pump chamber for ...

PORTABLE VEHICLE WASH CONTAINER

A portable vehicle wash container for enabling a user to wash a vehicle comprises at least two ramps, a clean fluid reservoir (CFR), a waste fluid reservoir (WFR), and a power generator. The ramps are detachably attached to an entrance and an exit of a container for facilitating an entry and an exit of the vehicle. The CFR comprises a pressure hose (PH) for supplying a fluid. The WFR comprises a vacuum hose in fluid communication with a waste receptacle for transferring the waste fluid to the WFR. The waste receptacle is positioned beneath the vehicle to receive waste fluid. The power generator powers the PH and the vacuum hose. The container comprises a space for receiving the vehicle. The CFR, the WFR, and the power generator are positioned in the space. The user washes the vehicle in the space of the container using clean fluid from the PH. 1. A portable vehicle wash container for enabling a user to wash a vehicle , the portable vehicle wash container comprising:at least two ramps detachably attached to an entrance and an exit of a container for facilitating an entry and an exit of the vehicle;a clean fluid reservoir comprising a pressure hose for supplying a fluid to wash the vehicle;a waste fluid reservoir comprising a vacuum hose, the vacuum hose in fluid communication with a waste receptacle for transferring the waste fluid from the waste receptacle to the waste fluid reservoir, wherein the waste receptacle is positioned beneath the vehicle to receive waste fluid from washing the vehicle;a power generator for powering the pressure hose and the vacuum hose; andthe container having a generally hollow cuboidal configuration comprising a space for receiving the vehicle, wherein the clean fluid reservoir, the waste fluid reservoir, and the power generator are positioned in the space, and wherein the user washes the vehicle in the space of the container using clean fluid from the pressure hose.2. The portable vehicle wash container of claim 1 , further comprising ...

Using a load sense pump as a backup for a pressure compensated pump

A load sense pump can be used as a backup for a pressure-compensated pump in a wellbore operation. A pumping system can include a first pump, a second pump, a check valve, and a directional control valve. The first pump, which can be a load sense pump, can be used to provide pressure to a first hydraulic load. The second pump, which can be a pressure-compensated pump, can be used to provide pressure to a second hydraulic load. The directional control valve can be controllable to cause the first pump to change operation to provide pressure to the first hydraulic load and through the check valve to the second hydraulic load.

Fluid Pump and Method of Pumping a Fluid

Embodiments of the invention provide dry gaseous fluid pump apparatus comprising: a fluid inlet and a fluid outlet; at least one pump body having an internal wall defining an internal pump chamber thereof; a compression member provided within the pump chamber; and valve means being operable selectively to allow fluid to be drawn from the fluid inlet and into the pump chamber when at least a portion of the compression member is translated in a first direction and to be exhausted from the pump chamber through the fluid outlet when said at least a portion of the compression member is translated in a second direction opposite the first, the valve means being arranged to be actuated by actuator means under the control of control means to perform at least one selected from amongst the functions of allowing fluid to be drawn from the fluid inlet into the pump chamber and allowing fluid to be exhausted from the pump chamber through the fluid outlet, the apparatus comprising a linear drive assembly operable to drive the at least a portion of the compression member to and fro within the pump chamber. 1. Dry gaseous fluid pump apparatus comprising:a fluid inlet and a fluid outlet;at least one pump body having an internal wall defining an internal pump chamber thereof;a compression member provided within the pump chamber; anda valve being operable selectively to allow fluid to be drawn from the fluid inlet and into the pump chamber when at least a portion of the compression member is translated in a first direction and to be exhausted from the pump chamber through the fluid outlet when said at least a portion of the compression member is translated in a second direction opposite the first, the valve being arranged to be actuated by an actuator under the control of a controller to perform at least one selected from amongst the functions of allowing fluid to be drawn from the fluid inlet into the pump chamber and allowing fluid to be exhausted from the pump chamber through the ...

High Viscosity Portion Pump

A high viscosity portion pump system has a single piston portion pump having a piston/diaphragm assembly arranged on a piston shaft forming liquid and gas chambers, which moves from a starting-position and provides high viscosity fluid from the liquid chamber when gas is received by the gas chamber; has an elastic member arranged on a retainer coupled to the shaft in a compartment in a pump housing, which moves the assembly back to the position and draws further fluid into the liquid chamber when the gas is released; and has a piston position sensor that responds to the position of the shaft and provides signaling containing information about when the assembly is in the position or completed a stroke from the position. A gas control system includes a signal processor that receives the signaling, and provides corresponding signaling containing information about when to provide or release the gas. 1. Apparatus , including a high viscosity portion pump system , comprising: a piston/diaphragm assembly arranged on a piston shaft and configured to form a liquid chamber and a gas chamber, the piston/diaphragm assembly being configured to move from a starting position and cause fluid having a high viscosity to be provided from the liquid chamber in response to gas being received by the gas chamber,', 'a combination of an elastic member arranged on a retainer coupled to the piston shaft in a compartment in a pump housing, the combination of the elastic member and retainer being configured to move the piston/diaphragm assembly back to the starting position and draw further fluid into the liquid chamber in response to gas being released from the gas chamber, and', 'a piston position sensor configured to provide signaling containing information about when the piston/diaphragm assembly is either in the starting position or has completed a stroke from the starting position; and, 'a single piston portion pump having'}a gas control system having a signal processor or signal ...

Piston Pump for Delivering Fluids, and Associated Vehicle Brake System

A piston pump for delivering fluids comprises a piston, a cylinder element and a pressure chamber which is arranged between an inlet valve and an outlet valve and is closed by a cover, wherein means for throttling the fluid flow are provided in the fluid flow downstream of the outlet valve, and a vehicle brake system has a piston pump of this type. The throttle means comprises a movable annular disc which is guided on the cylinder element and the internal diameter of which is adapted to the external diameter of the cylinder element, wherein the axial travel of the annular disc sets a variable first throttle cross section. 1. A piston pump for delivering fluids comprising:a piston;a cylinder element;a pressure chamber arranged between an inlet valve and an outlet valve, and configured to be closed by a cover; anda throttling mechanism configured to throttle a fluid flow, the throttling mechanism being provided in the fluid flow downstream of the outlet valve,wherein the throttling mechanism includes a movable annular disk configured to be guided on the cylinder element,wherein an internal diameter of the movable annular disk is adapted to an external diameter of the cylinder element, andwherein an axial travel of the annular disk sets a variable first throttle cross section.2. The piston pump as claimed in claim 1 , wherein the movable annular disk includes at least one opening configured to fixedly predefine a second throttle cross section.3. The piston pump as claimed in claim 2 , wherein the second throttle cross section is optimized for a volume flow in a predefined temperature range.4. The piston pump as claimed in claim 3 , wherein the second throttle cross section is optimized for a volume flow in a temperature range from 0° to 120° C.5. The piston pump as claimed in claim 1 , further comprising:a pretension device configured to dynamically throttle the fluid flow which is guided through at least one outflow opening between the cover and the cylinder by ...

Piston Pump for Delivering Fluids and Associated Vehicle Brake System

The disclosure relates to a pistol pump for delivering fluids comprising a piston, a cylinder element, and a pressure chamber arranged between an inlet valve and an outlet valve, The pressure chamber is closed off by a cover. The outlet valve comprises a closing body, a preload device which acts on the closing body, and a supporting mechanism configured to support the preload device. The outlet valve is arranged on the outer circumference of the cylinder element and adjusts a fluid flow conducted through at least one outflow opening between the cover and the cylinder element. The closing body is configured as a movable annular disk guided on the cylinder element, the inner diameter of which annular disk is matched to the outer diameter of the cylinder element. 1. A piston pump for delivering fluids comprising:a piston;a cylinder element;an inlet valve;an outlet valve including (i) a closing body, (ii) a pretension device acting on the closing body, and (iii) a supporting mechanism configured to support the pretension device; anda pressure chamber arranged between the inlet valve and the outlet valve and configured to be closed by a cover,wherein the outlet valve is arranged on the outer circumference of the cylinder element and is configured to adjust a fluid flow conducted through at least one outflow opening between the cover and the cylinder element, andwherein the closing body includes a movable annular disk guided on the cylinder element, the inner diameter of the movable annular disk is adapted to the outer diameter of the cylinder element.2. The piston pump as claimed in claim 1 , wherein:the pretension device includes a spring element, andin the closed state the pretension device presses the closing body against a seal seat arranged on the cover.3. The piston pump as claimed in claim 2 , wherein the closing body is configured (i) to seal radially against the cylinder element with a first sealing surface in the closed state claim 2 , and (ii) to seal axially ...

DEVICES, SYSTEMS, AND METHODS FOR PROVIDING AND USING ONE OR MORE VALVES IN AN ASSEMBLY LINE GROW POD

Devices, systems, and methods for providing and operating a valve control module and valves in an assembly line grow pod are provided herein. Some embodiments include an assembly line grow pod having a plurality of fluid lines fluidly coupled between a fluid source and a fluid destination within the assembly line grow pod, a plurality of valves, each coupled to a fluid line such that fluid movement through the fluid lines is selectively controlled by the valves, and a master controller communicatively coupled to the valves. The master controller is programmed to receive information relating to fluid delivery within the assembly line grow pod, determine one or more valves to direct the fluid, determine valve parameters for each of the valves that achieve the fluid direction, and transmit one or more control signals to the valves for directing the fluid within the assembly line grow pod. 120.-. (canceled)21. A method of installing a plurality of valves in an assembly line grow pod , the method comprising:providing the assembly line grow pod comprising a fluid source and at least one fluid destination;disposing the plurality of valves in the assembly line grow pod between the fluid source and the at least one fluid destination and fluidly coupling the plurality of valves to a first fluid line fluidly coupled to the fluid source and at least one second fluid line fluidly coupled to the at least one fluid destination such that the plurality of valves, when operated, selectively controls movement of a fluid flow in the first fluid line and the at least one second fluid line from the fluid source to the at least one fluid destination; andcommunicatively coupling the plurality of valves to a master controller within the assembly line grow pod, wherein the master controller is programmed to receive a recipe relating to a predetermined amount of fluid to be delivered to a particular plant at a predetermined location within the assembly line grow pod, determine one or more ...

ELECTRIC CARTRIDGE STYLE PRESSURE WASHER HEATER MODULE

An all-electric pressure washer heater module having a heating coil and a heating element is disclosed. A system for all-electric pressure washing is further disclosure. In particular, the all-electric pressure washer heater module contains the heating element from exposure to corrosion and fouling. 1. A pressure washer system with an all-electric heater module for heating a liquid , comprising:a high-pressure pump;at least one heating cartridge in communication with the high-pressure pump;a trigger gun assembly in communication with the at least one heating module;wherein the liquid can flow from the high-pressure pump through the at least one heating module whereby the liquid is heated by the heating module prior to being sent to the trigger gun assembly.2. The system according to claim 1 , further comprising at least one additional heating cartridge in communication with a first heating cartridge.3. The system according to claim 2 , wherein the heating cartridges are arranged in series.4. The system according to claim 2 , wherein the heating cartridges are arranged in parallel.5. The system according to claim 1 , further comprising measurement module claim 1 , wherein said measurement module is selected from the group consisting of flow claim 1 , pressure claim 1 , and temperature and combinations thereof.6. The system according to claim 1 , wherein the heating cartridge further comprises a coil in fluid communication with the high-pressure pump and a heating element.7. The system of claim 6 , wherein the heating element is selected from the group consisting of an electric cartridge claim 6 , electric blanket claim 6 , an electric source claim 6 , and combinations thereof.8. The system according to claim 1 , further comprising a control software for operating said system to select a desired pressure claim 1 , temperature claim 1 , detergent composition and combinations thereof.9. The system according to claim 1 , further comprising a pressure unloader claim 1 , a ...

Positive Displacement Injection Pump

A reciprocating drive mechanism having a housing with upper and lower internal chambers with a spool slidably positioned inside the upper internal chamber. There is at least one fluid inlet and fluid exhaust communicating with the upper internal chamber and at least one slide valve positioned within the upper internal chamber and traveling with the spool. A piston positioned in the lower internal chamber divides the lower internal chamber into an upper and lower cylinder space. There is at least one fluid conduit communicating between the upper internal chamber and the upper cylinder space and at least one fluid conduit communicating between the upper internal chamber and the lower cylinder space. A valve stem is connected to the piston and includes a bore communicating with the upper internal chamber and an exhaust passage is positioned between the upper and lower internal chambers. A first side passage is formed on the valve stem and connects to the bore in the valve stem and a second side passage formed in the valve stem below the first passage and shaped to bridge a seal positioned between the exhaust passage and the upper internal chamber. 130-. (canceled)31. A reciprocating drive mechanism comprising:a. a housing including upper and lower internal chambers and housing sidewalls;b. a spool slidably positioned inside said upper internal chamber;c. at least one fluid inlet and fluid exhaust communicating with said upper internal chamber;d. at least one slide valve positioned within said upper internal chamber and traveling with said spool;e. a piston positioned in said lower internal chamber and dividing said lower internal chamber into an upper and lower cylinder space;f. at least one upper chamber conduit communicating between said upper internal chamber and said upper cylinder space;g. at least one lower chamber conduit communicating between said upper internal chamber and said lower cylinder space;h. wherein at least three of said fluid inlet, said fluid ...

VACUUM-DRIVEN FLUID DELIVERY DEVICE WITH CONTROLLED VACUUM PRESSURE RELEASE

A fluid delivery device includes: a first chamber configured to receive fluid from a fluid reservoir; a second chamber configured generate a vacuum therein to apply pressure to the fluid in the first chamber to enable the fluid in the first chamber to be output from the fluid delivery device; and a flow control member configured to allow the fluid in the first chamber to flow through the flow control member into the fluid reservoir at a predetermined flow rate to decrease the vacuum in the second chamber. 1. A fluid delivery device , comprising:a first chamber;a second chamber;a reservoir configured to contain a fluid;a first valve configured to control a first flow of the fluid between the fluid reservoir and the second chamber;a flow control member configured to control a second flow of the fluid between the second chamber and the fluid reservoir;a first plunger configured to generate a vacuum in the first chamber responsive to movement of the first plunger in a first direction; anda second plunger configured to move in the first direction in response to movement of the first plunger in the first direction to cause a portion of the fluid to flow from the fluid reservoir through the first valve and into the second chamber, and configured to apply a force generated by the vacuum to the portion of the fluid in the second chamber; andan outlet comprising a second valve configured to be actuated to output the portion of the fluid from the second chamber outside of the fluid delivery device,wherein, when the second valve is not actuated, the flow control member is configured to allow the portion of the fluid in the second chamber to flow through the flow control member into the fluid reservoir at a predetermined flow rate.2. The fluid delivery device of claim 1 , wherein when the flow control member is in a closed configuration claim 1 , the flow control member only partially blocks a flow of the portion of the fluid in the fluid chamber from the fluid chamber to the ...

LIQUID SOLVENT SPRAY BRUSH STATION FOR SURFACE CLEANING IN NANO-MICROTRONICS PROCESSING

A medium strength, liquid solvent, spray brush station system gently cleans surfaces of components during nano- and microtronics processing in cleanroom facilities. This system includes intermediate strength, yet effective surface cleaning with minimal damage to subject nano and microtronics components. Moreover, the instrument is compatible with a cleanroom environment, and provides self contained, easily manageable disposition of the peripheral mess and waste resulting from the cleaning process. 1. An electronic device , element and surface cleaning station apparatus having regulated , adjustable gas pressure cleaning components and regulated , adjustable chemical spray cleaning components; the cleaning station apparatus comprising:a glove box, having a first and a second rubber glove access ports; wherein a first rubber glove and a second rubber glove reside in and are attached to the first and the second rubber glove access ports, wherein the glove box is composed of solvent and chemical resistant plastic, and wherein the first rubber glove and the second rubber glove have solvent and chemical resistance properties, wherein a user having hands in the first and second rubber gloves has protection from chemical and solvent exposure, during the user manipulation and cleaning of electronic devices, elements and surfaces in the cleaning station apparatus, wherein electronic devices and elements having surfaces include nanotronics and microtronics components;a hinged top access port, having two hinges pivotally connected between a top surface of the cleaning station apparatus, and a replaceable clear plastic viewing window having a handle on the top surface of the replaceable clear plastic viewing window; wherein the replaceable clear plastic viewing window further includes a clear plastic solvent shield replaceably adhered to the bottom of the replaceable clear plastic viewing window;a waste drain, residing at the bottom of the glove box, between the first and second ...

Dynamic Solenoid Drive Duty Cycle Adjustment

The performance of a solenoid drive liquid pump can be very dependent on the magnitude and stability of an input voltage, with non-ideal input power resulting in loss of efficiency and potential damage to the pump. Pulse width of drive signals provided to the pump, which cause solenoids to alternately energize to move liquid through the pump, may be adjusted in duration in order to compensate for non-ideal input voltage. A drive control module of the pump gathers voltage information, determines an improved pulse width based upon that voltage information, and then provides drive signals based upon the improved pulse width. Operating in this manner, a pump can operate at or near peak efficiency despite both significant variances in input voltage and non-sinusoidal input voltage, and without customized components or adapters. 1. A pump comprising:a liquid chamber comprising an intake valve and an output valve;a set of solenoids that may be energized by a drive, in response to drive signals;a shaft configured to perform an intake stroke or a discharge stroke by operation of the set of solenoids, wherein the intake stroke increases the volume of the liquid chamber and allows liquid to flow through the intake valve and the discharge stroke decreases the volume of the liquid chamber and forces liquid through the output valve; anda drive control module comprising a processor and memory and a voltage measuring circuit, wherein the drive control module is operable to provide drive signals to the set of solenoids;wherein the drive control module is configured to:receive a set of voltage data via the voltage measuring circuit;based on the set of voltage data, determine a corrected pulse width that is of a minimum duration that allows for completion of the intake stroke and the discharge stroke; andgenerate a drive signal based upon the corrected pulse width and provide it to the drive.2. The pump of claim 1 , wherein the drive control module is configured to determine the ...

Kitchen Floor Mat Cleaning System

A floor mat cleaning system configured for cleaning an at least one floor mat is disclosed. In at least one embodiment, the system provides an enclosure sized for receiving the floor mat therewithin. A front wall of the enclosure defines an opening that allows access into the enclosure. A suspension mechanism is positioned within the enclosure and configured for allowing the floor mat to be selectively suspended therewithin. A washing assembly is engaged with the enclosure and configured for cleaning the suspended floor mat. A floor panel, front wall, rear wall and opposing side walls of the enclosure cooperate to define a basin configured for catching and retaining any debris or substances that might fall from the suspended floor mat while it is being cleaned. 1. A floor mat cleaning system configured for cleaning an at least one floor mat , the system comprising:an enclosure sized for receiving the at least one floor mat therewithin, the enclosure providing a ceiling panel, a floor panel, a pair of opposing side walls, a rear wall and an opposing front wall;the front wall defining an opening that allows access into the enclosure;a suspension mechanism positioned within the enclosure and configured for allowing the at least one floor mat to be selectively suspended within the enclosure;a washing assembly engaged with the enclosure and configured for cleaning the at least one floor mat suspended within the enclosure; andthe floor panel, front wall, rear wall and side walls cooperating to define a basin within the enclosure, the basin configured for catching and retaining any debris or substances that might fall from the at least one suspended floor mat while it is being cleaned;whereby, during use, the system allows the at least one floor mat to be cleaned and subsequently hanged dry in a self-contained area, without having to move the at least one floor mat during the process.2. The floor mat cleaning system of claim 1 , wherein the suspension mechanism comprises ...

Manual pump

A manual pump (P) for associating with a fluid reservoir (R), the pump (P) comprising a pump body (B) that defines a slide cylinder (F), and further comprising a pump chamber (C), the pump (P) further comprising an outlet valve (V) and an inlet (E 1 ) so as to take the fluid into the pump chamber (C) from the reservoir (R); the manual pump being characterized in that: the pump chamber (C) does not have an inlet valve; and one fraction of the dose of fluid stored in the pump chamber (C) is discharged through the outlet valve (V) towards the dispenser orifice (O), and the other fraction of the dose of fluid stored in the pump chamber (C) is discharged into the reservoir (R) through the inlet (E 1 ).

Intake Valve Actuating System, Compressors Starting Method and Its Uses

The present invention relates an intake valve actuating system, specially to reciprocating machines, the use of said system in compressors and a compressors starting method, promoting advantages on the compressors starting, minimizing the power needed on said reciprocating machines. Specially, the present invention includes a controlled actuating mean actuating an intake valve, by a coil, while a piston starts its reciprocating movement. The intake valve can be displaced, at the expense of the reciprocating movement of the piston, displacing a relief spring, avoiding overloading the coil. The present invention is situated on field of Mechanical Engineer, more precisely on the area of Flow Machines. 2. Intake valve actuating system according to claim 1 , characterized by the fact that the controlled actuating means happens applying a controlled electrical current.3. Intake valve actuating system according to claim 1 , characterized by the displacement absorption mean is comprised by at least one of the comprised on the group defined by: elastic mechanical element; electrical current intensity controller; spring-gas; fluid compression; balance by controlled mass; or similar.4. Intake valve actuating system according to claim 1 , characterized by:a. the actuating mean being a solenoid having a magnetizable movable plunger housing an actuating stem, the solenoid being capable of displace the movable plunger in an opening direction;b. the displacement absorption mean being a spring associated to the movable plunger and to the actuating stem, capable of allowing, by means of an elastic deformation, the actuating stem displacement in a direction contrary to the movable plunger displacement, when magnetized.5. Method for starting compressors claim 1 , in which the compressor uses a reciprocating piston for compressing a fluid and comprises an intake valve actuating system as defined in claim 1 , the method being characterized by comprising the steps of controlled actuating ...

DEPRESSURIZING DEVICE

A depressurizing device includes a valve base, a first valve, a flexible member, and a top cover. The valve base has a pressure chamber and an outgassing chamber. Top and bottom surfaces of the pressure chamber have an opening and a first valve port respectively. The first valve is located in the pressure chamber and covers the first valve port. The flexible member is disposed on the valve base and has a depressurizing valve and a first outgassing port, the depressurizing valve covers the opening, and the first outgassing port is communicated with the outgassing chamber. A first outgassing channel is at least formed on the flexible member and communicates the pressure chamber to the outside of the valve base. The top cover is disposed on the flexible member and has a first depressurizing port and a second outgassing port. 1. A depressurizing device comprising:a valve base having a pressure chamber and an outgassing chamber, top and bottom surfaces of the pressure chamber having an opening and a first valve port respectively, the valve base further having a valve port channel communicated with the pressure chamber through the first valve port, and a bottom surface of the outgassing chamber having a second valve port, wherein a first outgassing channel is at least formed on the valve base and communicates the valve port channel to the outside of the valve base;a first valve located in the pressure chamber and at least partially covering the first valve port to form a depressurizing gap;a flexible member disposed on the valve base and having a depressurizing valve and a first outgassing port, the depressurizing valve covering the opening, the first outgassing port being communicated with the outgassing chamber; anda top cover disposed on the flexible member and having a first depressurizing port and a second outgassing port, the first depressurizing port facing the depressurizing valve, the second outgassing port being communicated with the first outgassing port, ...

Venting Device with Splash Guard and Power Tool with such a Venting Device

A venting device with a splash guard for deflection of splashing water entering the interior of the venting device has slats with a front section arranged at the exterior. Venting slots are formed between the front sections. At least one of the slats has a deflection section arranged at the interior and a central section connecting deflection section and front section. The front section and the deflection section are angled relative to the central section. The front section of the at least one slat in the operating position of the venting device extends from the central section toward the top side. The deflection section extends in the operating position from the central section toward the bottom side. The deflection section has a region oriented at an angle of less than 90° relative to the central section. A power tool with such a venting device is provided. 1. A venting device with a splash guard for at least partial deflection of splashing water advancing from an exterior of the venting device in a direction toward an interior of the venting device , the venting device comprising:slats, each comprising a front section arranged at the exterior, wherein venting slots are formed between the front sections;wherein at least one of the slats comprises a deflection section arranged at the interior and further comprises a central section, wherein the deflection section is connected by the central section to the front section, wherein the front section is angled relative to the central section, and wherein the deflection section is angled relative to the central section;wherein the venting device comprises an operating position and the venting device comprises a top side and a bottom side, relative to a vertical direction, in the operating position;wherein the front section of said at least one slat in the operating position extends from the central section in a direction toward the top side;wherein the deflection section of said at least one slat in the operating ...

Volumetric Metering Unit

Method and device for metering a medium from at least one storage tank by a metering device, which has a piston pump, which defines a working chamber with a cylinder and a piston, wherein in a first method step a determined filling quantity of a medium is conveyed via an inlet valve into the working chamber and the determined filling quantity is greater than the quantity to be metered and, in a second method step, the piston reduces the working chamber in size enough that only the quantity to be metered remains, wherein the excess medium flows out of the working chamber, wherein the excess medium flows via the inlet valve back into a ring line, which is connected in a medium-conducting manner to the storage tank and is arranged outside the working chamber. 1. A method for metering a medium from at least one storage tank by means of a metering device , which has a piston pump , which defines a working chamber with a cylinder and a piston , the method comprising conveying a determined filling quantity of a medium via an inlet valve into the working chamber and the determined filling quantity is greater than the quantity to be metered and , reducing , via the piston , the working chamber in size until only the quantity to be metered remains , wherein the excess medium flows out of the working chamber via the inlet valve back into a ring line , which is connected in a medium conducting manner to the storage tank and is arranged outside the working chamber.2. The method according to claim 1 , wherein the pressure inside the working chamber is measured during all of steps of the method using a pressure sensor.3. A method for metering at least one medium by a metering device claim 1 , which has a piston pump claim 1 , in which a cylinder and a movable piston define a working space claim 1 , the method comprising:opening an inlet valve, wherein the piston is at the height of a cylinder base;filling the working chamber with the medium via the inlet valve using a pump, which ...

APPARATUS FOR FLEXIBLE, PROGRAMMED, CONTROLLED TRANSFER OF LIQUIDS IN MULTI-TANK SYSTEMS

A pumping system, method and device for pumping from and to any two or more vessels in a multiple vessel process where all permutations of the source and destination vessels are possible, but only specific combinations are required as part of the regular, repeat, controlled process system. 2. The system of claim 1 , wherein each of the suction crossover ports claim 1 , the pressure crossover ports claim 1 , the suction input ports and the pressure output ports are flush with at least one plane defined by an outer face of the frame.3. The system of claim 1 , wherein at least one of the skids comprises an additional manifold that is not coupled to the pump and has at least one additional crossover port claim 1 , at least one additional output port that is coupled to the tank input of one of the tanks claim 1 , and at least one additional input port that is coupled to the tank output of the one of the tanks.4. The system of claim 1 , wherein at least one of the skids comprises a check valve that prevents the reverse flow of the liquid medium through at least one of the pressure manifold claim 1 , the pump and the suction manifold.5. The system of claim 4 , wherein at least one of the skids comprises a pump bypass that couples the suction manifold of the at least one of the skids directly to the pressure manifold of the at least one of the skids and a bypass valve that opens and closes the pump bypass.6. The system of claim 1 , wherein each of the suction input ports and the pressure output ports has a corresponding control valve that opens and closes that port.7. The system of claim 6 , wherein each of the skids comprise a controller that controls the opening and closing of the controls valves in order to effectuate a transfer of the liquid medium to and/or from one or more of the tanks through the skid.8. The system of claim 7 , wherein when coupled together claim 7 , the controller of one of the skids is able to control the opening and closing of the control valves ...

POSITIVE DRIVE ACTUATED VALVE FOR RECIPROCATING COMPRESSOR AND METHOD

Positive drive valve actuating mechanisms useable to operate a valve of a reciprocating compressor for oil and gas industry and related methods are provided. The valve actuating mechanism includes a driver configured to perform a rotating motion and a follower connected to a mobile part of the valve and to the driver. The follower is configured to transform the rotating motion of the driver into a reciprocating motion to open the valve and to close the valve, respectively. 1. A positive drive valve actuating mechanism for operating a valve of a reciprocating compressor for oil and gas industry , the valve actuating mechanism comprising:a driver configured to perform a rotating motion; anda follower connected to a mobile part of the valve and to the driver, and configured to transform the rotating motion of the driver into a reciprocating motion to open the valve and to close the valve, respectively.2. The positive drive valve actuating mechanism of claim 1 , wherein the driver comprises a first cam and a second cam configured to rotate around an axis claim 1 , wherein elongated parts of the first cam and of the second cam claim 1 , respectively claim 1 , are located at different angular positions.3. The positive drive valve actuating mechanism of claim 2 , wherein:the valve is a linear valve, and a first arm comprising a cam-contact end in contact with profiles of the first cam and of the second cam;', 'a second arm comprising a shaft-contact end attached to a valve shaft; and', 'a rigid joint connecting ends of the first arm and of the second arm opposite to the cam-contact end and to the shaft-contact end, respectively,', 'wherein the follower transforms the rotating motion of the driver into a reciprocating translation of a valve closing member attached to the valve shaft., 'the follower comprises4. The positive drive valve actuating mechanism of claim 2 , wherein:the valve is a rotary valve, and a valve shaft attached to a rotor of the rotary valve;', 'a first ...

LOW-SPEED HIGH TORQUE MOTOR CONTROL AND FOAM SYSTEM

A fire suppression system includes a motor and a foam pump. The foam pump is driven by the motor to inject one or more chemical additives from an off-board additive container into a discharge conduit. A bypass valve is in fluid communication with the output of the foam pump. One or more sensors are configured to measure at least one operating condition of the foam pump. A controller is in communication with the one or more sensors and is operatively connected to the bypass valve. The controller is configured to determine, based on data received from the one or more sensors regarding the at least one operating condition of the foam pump, whether the foam pump is experiencing a loss of prime, and to open the bypass valve in response. The motor may also selectively operate in one of two modes depending on the rotational speed and torque required. 1. A system comprising:a brushless direct current electric (BLDC) motor having a plurality of phases; anda motor controller operatively connected to the plurality of phases of the BLDC motor and configured to selectively power rotation of the BLDC motor via the plurality of phases in a first mode and a second mode, (a) determine a current rotational position of the BLDC motor,', '(b) determine a subsequent rotational position of the BLDC motor to which the BLDC motor is to be rotated,', '(c) apply a first pulse width modulation (PWM) setting to one or more of the plurality of phases to cause the BLDC motor to rotate toward the subsequent rotational position,', '(d) responsive to detecting that the BLDC motor has reached the subsequent rotational position, apply a second PWM setting different from the first PWM setting to the one or more of the plurality of phases until expiration of a timer of predetermined duration, and', '(e) after expiration of the timer, return to step (a), and, 'wherein when the motor controller powers rotation of the BLDC motor in the first mode, the motor controller is configured to'} (i) determine a ...

NOZZLE SYSTEM AND METHOD

Spray nozzle systems and methods of use are described herein. The spray nozzle system may include a stationary tube, a rigid rotor, and a sub-medium supply source. The stationary tube may be in fluid communication with a pressurized air source. The substantially rigid rotor is in fluid communication with the pressurized air source. The substantially rigid rotor includes a substantially rigid conduit that is in fluid communication with the passages of the stationary tube and the rotor. A portion of the conduit is substantially arched such that an outlet of the conduit is offset a radial distance in a radial direction from the rotor axis. Pressurized air ejected from the outlet produces directional components of the pressurized air in the direction of rotation about the rotor axis; and during use, the pressurized air rotates the rotor and sucks sub-medium from the sub-medium supply source into the stationary tube passage. 132-. (canceled)33. A spray nozzle , comprising:a first tube in fluid communication with a pressurized air source;a conduit, the conduit in fluid communication with a passage of the first tube, wherein the conduit is substantially angled such that an outlet of the conduit is offset from the first tube, wherein, during use, ejection of pressurized air from the outlet rotates at least a portion of the conduit; anda hand-held actuator coupled to the first tube, wherein the hand-held actuator is in fluid communication with the pressurized air source, the hand-held actuator being configured to allow a user to actuate the hand-held actuator and thereby allow air from the pressurized air source to flow into the conduit and be ejected from the outlet;a second tube in fluid communication with a sub-medium supply source, wherein the sub-medium supply source supplies, during use, a sub-medium, wherein a negative pressure created at, or adjacent to, a distal end of the spray nozzle draws, during use, sub-medium from the sub-medium supply source through the ...

FOAM PUMP SPRAYER

A piston is formed by an outer edge of the cap. The piston and an inner wall of the nozzle body form a dynamic seal for the air cylinder, so that a main body of the air pump is formed. The cap extends downwardly to form a hydraulic cylinder. The hollow compression rod connects a pump component of the hydraulic cylinder and the mixing chamber of the head, so that a main body of the liquid pump is formed. The hollow compression rod is provided with an upper disk. The upper end of the upper disk passes the air outlet of the nozzle body and is inserted into the connecting pipe of the head in snap fit, and the upper disk opens or closes the air outlet. A fastening position is designed to form a gap between the head and the nozzle body to realize a floating valve function at the head. 1. A nozzle for a foam pump , comprisinga cap;a nozzle body;a head;a hollow compression rod; andan elastic reset element;wherein an outer edge of the cap forms a piston, and the cap is capable of entering the nozzle body; the piston and an inner wall of the nozzle body form a dynamic seal; the nozzle body slides on an outer wall of the cap, forming a main body of an air pump;a first fastening position is provided at an upper edge of the cap and a lower edge of the nozzle body;a hydraulic cylinder is provided at the cap and is provided with a pump component; a liquid inlet check valve is installed at a bottom of the hydraulic cylinder;an air outlet is provided at a center of the dispenser, and a hollow compression rod penetrates through the air outlet; the hollow compression rod is provided with an upper disk which is configured to open or close the air outlet; a connecting pipe of the head is fixedly inserted into an upper end of the hollow compression rod through a second fastening position; a mixing chamber is provided in the connecting pipe of the head;the dispenser is further provided with an air inlet;a gap is formed between the head and the nozzle body through the second fastening ...

DUAL CONTROL VALVE FOR RECIPROCATING COMPRESSOR UNLOADER SYSTEM

A continuous run controller for a dual control compressor system includes an integrated housing containing a pilot valve and a hydraulic unloader valve. Low pressure in the hydraulic oil system opens the hydraulic unloader valve such that the suction valve unloader assembly unloads the compressor. High pressure in an air receiver of the compressor system opens the pilot valve such that the suction valve unloader assembly unloads the compressor. 120-. (canceled)21. A continuous run controller for a gas compressor system , the continuous run controller comprising:an integrated housing, comprising:an inlet port;an outlet port;at least first and second component ports;a pilot valve mounted in the first component port and arranged in flow communication with the inlet and outlet ports;a hydraulic unloader valve mounted in the second component port and arranged in flow communication with the inlet and outlet ports and a lubrication system of the gas compressor system;wherein when gas pressure at the inlet port is below a first threshold level, the pilot valve closes to reduce gas pressure available at the outlet port, and when gas pressure at the inlet port is above the first threshold level, the pilot valve opens to increase gas pressure available at the outlet port;wherein when oil pressure available to the hydraulic unloader valve is above a second threshold level, the hydraulic unloader valve closes to reduce gas pressure available at the outlet port, and when oil pressure available to the hydraulic unloader valve is below the second threshold level, the hydraulic unloader valve opens to increase gas pressure available at the outlet port, wherein the second threshold level comprises at least one of a biasing force of a spring in the hydraulic unloader valve and the gas pressure in the gas receiver;wherein changes in gas pressure at the outlet port caused loading and unloading of a suction valve of a compressor of the gas compressor system.22. The continuous run ...

PUMP SYSTEM WITH OVER-TEMPERATURE PREVENTION

A pump system including a prevention mechanism for preventing excessive fluid temperature buildup of system fluid. The overheat prevention mechanism includes a thermally-responsive control component () made with a thermally-responsive material. The thermally-responsive control component is located in the pump system () such that the thermally-responsive material is in thermal communication with the system fluid for effecting a change in temperature of the thermally-responsive material. The thermally-responsive material is configured to have an activation temperature that is a predefined amount less than a maximum operating temperature of the system fluid. The thermally-responsive control component is configured to cooperate with a pump control mechanism in the system to decrease pump output pressure in response to the thermally-responsive material being heated by the fluid to a temperature that is equal to or greater than the activation temperature of the thermally-responsive material. 1. A hydraulic pump system , comprising:a variable displacement hydraulic pump for pumping hydraulic fluid;a fluid-operated control fluidly connected to the hydraulic pump and configured to increase or decrease pump displacement in response to a hydraulic fluid pressure of the system being communicated to the fluid-operated control; anda thermally-responsive control component made with a thermally-responsive material, the thermally-responsive control component being located in the hydraulic pump system such that the thermally-responsive material is in thermal communication with the hydraulic fluid flowing through the hydraulic pump system for effecting a change in temperature of the thermally-responsive material;wherein the thermally-responsive material is configured to have an activation temperature that is a predefined amount less than a maximum operating temperature of the hydraulic fluid flowing through the hydraulic pump system; andwherein the thermally-responsive control ...

Monitoring System For Pressure Pump Cavitation

A monitoring system may include a position sensor, strain gauges, and a computing device for monitoring valves in a wellbore pressure pump having multiple chambers to determine cavitation in the fluid end of the wellbore pressure pump using strain measurements for each chamber. The strain gauges may determine strain in each chamber of the pressure pump. The position sensor may determine the position of a crankshaft mechanically coupled to a plunger in each chamber. The computing device may receive signals generated by the strain gauges and the position sensor related to the strain in each chamber and the position of the crankshaft, respectively, and may process the signals to determine delays in the actuation of the valves for identifying cavitation and distinguishing cavitation conditions from alternative conditions in the fluid end.

SYSTEM AND METHOD FOR REMOVING RESIDUAL PRESSURE IN MOTOR DRIVEN AIR COMPRESSOR MANAGEMENT SYSTEM

The present disclosure provides a system and method for removing a residual pressure of compressed air in a motor driven air compressor management system applied to an eco-friendly vehicle. That is, the present disclosure provides a system and a method for removing a residual pressure in a motor driven air compressor management system, which allow a continuous smooth operation of a motor driven air compressor by easily removing a residual pressure of compressed air before a subsequent operation of the motor driven air compressor even though the residual pressure of the compressed air, which fills in an air tank during an operation of the motor driven air compressor, remains according to a tuning off of the motor driven air compressor. 1. A system for removing a residual pressure in a motor driven air compressor management system , comprising:a motor driven air compressor;a separator cooler configured to primarily remove foreign materials of compressed air generated by the motor driven air compressor;an air dryer configured to secondarily remove foreign materials of the compressed air flowing from the separator cooler;an air tank in which the compressed air fills to be stored;an inverter configured to perform ON/OFF control of the motor driven air compressor; anda control line connected to a purge port of the air dryer and on which a filling pressure of the compressed air act,wherein a pneumatic switch which is turned on by a maximum filling pressure of the compressed air is installed at the control line;an air backflow line is directly connected between the air tank and an exhaust port valve of the separator cooler; anda solenoid valve which is turned on by a control signal of a controller is installed at the air backflow line.2. The system of claim 1 , wherein claim 1 , when the motor driven air compressor is turned off in a state in which a control line pressure P is less than a pneumatic switch operating pressure Pwhile the motor driven air compressor is turned ...

UNLOADER FOR A VALVE ELEMENT OF A COMPRESSOR VALVE

Unloader () for a valve element () of a compressor valve (), comprising a least one unloader finger () and one carrier bushing (), wherein the unloader finger () is fabricated from a first material, the carrier bushing () is fabricated from a second material using a casting method, and at least part of the unloader finger () is mould in with the material of the carrier bushing (). 1. An unloader for a valve element of a compressor valve , comprising at least one unloader finger and one carrier bushing , wherein the unloader finger is fabricated from a first material , the carrier bushing is fabricated from a second material using a casting method , and at least part of the unloader finger is mould in with the material of the carrier bushing.2. The unloader in accordance with claim 1 , wherein the carrier bushing has a guide area for guiding the unloader.3. The unloader in accordance with claim 2 , wherein the guide area is arranged on the radially interior circumferential surface of the carrier bushing.4. The unloader in accordance with claim 1 , wherein the carrier bushing is fabricated from plastic or fiber-reinforced plastic.5. The unloader in accordance with claim 1 , wherein the unloader finger is joined to a force transmitting ring at a central area that faces the valve element.6. The unloader in accordance with claim 5 , wherein the unloader finger has a groove on its central area that faces the valve element and that the unloader finger is hooked by means of the groove to a first contact point between force transmitting ring and unloader finger in the force transmitting ring.7. The unloader in accordance with claim 1 , wherein at least one axial end that faces away from the valve element the unloader finger is joined to a connection ring.8. The unloader in accordance with claim 7 , wherein at its axial end that faces away from the valve element the unloader finger has a recess and wherein the connection ring has as a second contact point between connection ...

A MINIMUM PRESSURE VALVE AND COMPRESSOR COMPRISING SUCH A MINIMUM PRESSURE VALVE

The present invention is directed to a minimum pressure valve comprising a housing () with a valve inlet () and a valve outlet () which are connected by means of a chamber (), said minimum pressure valve () further comprising a valve body () movable in said chamber () between a closed position in which said valve inlet () is closed off, and an open position in which said valve inlet () is open, whereby said minimum pressure valve () further comprises a regulation unit () for setting the value of the pressure at which the valve body () moves into an open position. 126-. (canceled)2713111216101716111110181717241111. A minimum pressure valve comprising a housing () with a valve inlet () and a valve outlet () which are connected by means of a chamber () , said minimum pressure valve () further comprising a valve body () movable in said chamber () between a closed position in which said valve inlet () is closed off , and an open position in which said valve inlet () is open , wherein said minimum pressure valve () further comprises a regulation unit () for setting the value of the pressure at which the valve body () moves into the open position , and in that the valve body () comprises a piston () received therein movable between the closed position in which the valve inlet () is closed off and the open position in which said valve inlet () is open.2810. The minimum pressure valve according to claim 27 , wherein the minimum pressure valve () does not comprise a spring.29181920171611. The minimum pressure valve according to claim 27 , wherein the regulation unit () comprises a conduit () fluidly connecting a space () delimited between the valve body () and the chamber () with the valve inlet ().30182219231316. The minimum pressure valve according to claim 29 , wherein the regulation unit () comprises a restricting module () adapted to be connected on the one hand to the conduit () and on the other hand onto a channel () created through the housing () and a wall of the ...

METHOD FOR OPERATING A PRESSURE CONTROL SYSTEM COMPRISING A MULTI-STAGE COMPRESSOR, AND PRESSURE CONTROL SYSTEM

A method for operating a pressure control system having a multistage compressor includes providing, by the multistage compressor, a pressure medium that has been compressed multiple times in order to fill a pressure medium reservoir or pressure medium chambers of the pressure control system. The providing the pressure medium involves providing, by a first compression stage, a precompressed pressure medium and additionally compressing, via a second compression stage, the precompressed pressure medium, and/or introducing an already compressed charge pressure medium into an intermediate volume between the first compression stage and the second compression stage of the multistage compressor and further compressing, by the second compression stage, the charge pressure medium. The charge pressure medium simultaneously passes, via a control line, to a control input of a shut-off valve that interacts with the first compression stage, such that a charge pressure of the charge pressure medium predefines a control pressure. 1. A method for operating a pressure control system having a multistage compressor , the method comprising: providing, by a first compression stage, a precompressed pressure medium and additionally compressing, via a second compression stage, the precompressed pressure medium, and/or', 'introducing an already compressed charge pressure medium into an intermediate volume between the first compression stage and the second compression stage of the multistage compressor and further compressing, by the second compression stage, the charge pressure medium,, 'providing, by the multistage compressor, a pressure medium that has been compressed multiple times in order to fill a pressure medium reservoir or pressure medium chambers of the pressure control system, the providing the pressure medium includingwherein the charge pressure medium simultaneously passes, via a control line, to a control input of a shut-off valve that interacts with the first compression stage, ...

PORTABLE AND COMPACTABLE POWER WASHER

A portable power washer. The portable power washer includes a housing. The housing is made of a flexible material and includes a base, a sidewall, an opening, and a lid openably and closably coupled the sidewall and covering the opening. A hose coupler fluidly connects an inside of the housing with an outside of the housing. A pump is operable to pump a liquid from the inside of the housing and through the hose coupler. 1. A portable power washer comprising:a housing made of a flexible material and comprising a base, a sidewall, an opening, and a lid openably and closably coupled the sidewall and covering the opening;a hose coupler fluidly connecting an inside of the housing with an outside of the housing; anda pump operable to pump a liquid from the inside of the housing and through the hose coupler.2. The portable power washer of claim 1 , further comprising a bag made of a water impermeable material claim 1 , wherein the bag comprises an inlet opening claim 1 , a cap openably and closably coupled to the bag and covering the inlet opening claim 1 , an outlet opening claim 1 , and a first hose fluidly connected to the outlet opening and fluidly connect to the hose coupler.3. The portable power washer of claim 2 , wherein the pump comprises an inlet and an outlet claim 2 , wherein the inlet is coupled to the first hose and the outlet is coupled to the hose coupler.4. The portable power washer of claim 2 , further comprising a second hose coupled to the hose coupler and disposed outside of the housing.5. The portable power washer of claim 4 , further comprising a spray nozzle releasably secured to the second hose by a quick connect.6. The portable power wash of claim 4 , further comprising a pocket attached to the sidewall and configured to stow the second hose within.7. The portable power washer of claim 1 , further comprising a noise dampener comprising a foam piece with a cutout portion claim 1 , wherein the noise dampener is disposed within the housing and the ...

COMPRESSED AIR WASH SYSTEM

A mobile pressure wash system that comprises a mobile fluid storage cabinet comprised of at least one fluid storage tank coupled to an air compressor. The air compressor supplies pressurized air into a pressurized air line. An intertwined hose comprised of a fluid supply line and the pressurized air line. The air line connects to an air gun and the fluid line connects to the air gun. The air gun comprises a syphon tip, and the fluid line connects to the syphon tip to facilitate a pressure differential to syphon fluid from the at least one fluid storage tank to eject fluid under pressure when pressurized air flows through the air gun. 1. A mobile pressure wash system , comprising:a mobile fluid storage cabinet comprised of at least one fluid storage tank coupled to an air compressor, and the air compressor supplying pressurized air into a pressurized air line;the pressurized air line connecting to an air gun and a fluid line connecting to the air gun, the fluid line attached to the fluid storage tank;the air gun comprising a syphon tip, the fluid line connecting to the syphon tip to facilitate a pressure differential to syphon fluid from the at least one fluid storage tank to eject fluid under pressure when pressurized air flows through the air gun and syphon tip;wherein the air gun and the syphon together form a syphon gun.2. The mobile pressure wash system of claim 1 , wherein the fluid comprises water claim 1 , a cleaner claim 1 , or a combination of water and cleaner.3. The mobile pressure wash system of claim 1 , wherein the syphon tip comprises an attachable syphon tip interfaced with the air gun.4. The mobile pressure wash system of claim 1 , wherein the air compressor comprises an air pressure in the range of 45 to 90 psi and a five gallon pressure tank storing pressurized air.5. The mobile pressure wash system of claim 1 , wherein the fluid storage cabinet comprises at least two five gallon fluid storage tanks claim 1 , a storage section claim 1 , and hosing ...

ELECTRIC CONTROL MODULE SOLENOID PUMP

A control unit for a solenoid pump, the solenoid pump including: an inlet port, an outlet port, and a first through-bore connecting the inlet and outlet ports; a plunger disposed within the first through-bore and including a second through-bore; a spring arranged to urge the plunger toward the outlet port; a solenoid coil disposed about a portion of the plunger and arranged to displace the plunger toward the inlet port in response to direct current coil power applied to the solenoid coil, the control unit including a microcontroller operatively arranged to control the solenoid coil, a first transistor operatively arranged to receive an external signal and communicate the signal to the microcontroller to control the solenoid coil, and a second transistor, arranged between the microcontroller and the solenoid coil, the second transistor operatively arranged to energize and de-energize the solenoid coil in response to the microcontroller. 1. A control unit for a solenoid pump , the solenoid pump including: an inlet port , an outlet port , and a first through-bore connecting the inlet and outlet ports; a plunger disposed within the first through-bore and including a second through-bore; a spring arranged to urge the plunger toward the outlet port; a solenoid coil disposed about a portion of the plunger and arranged to displace the plunger toward the inlet port in response to direct current coil power applied to the solenoid coil , the control unit comprising:a microcontroller operatively arranged to control the solenoid coil;a first transistor operatively arranged to receive an external signal and communicate the signal to the microcontroller to control the solenoid coil; and,a second transistor, arranged between the microcontroller and the solenoid coil, the second transistor operatively arranged to energize and de-energize the solenoid coil in response to the microcontroller.2. The control unit as recited in claim 1 , wherein an external signal source is arranged to: ...

Inline Pump Assembly and Method

A pump assembly and methods of use and conversion including a sealed housing, at least one in-tank, not sealed pump contained in the sealed housing, an outlet check valve inside each pump, and an over pressure relief passage formed around the pumps in the sealed housing. The pump assembly may also include a common fuel inlet, a common fuel outlet; at least two of the pumps, a compact design, a mounting bracket, a sealed electrical inlet, a pre filter, a post filter, a pressure regulator, a returnless fuel supply, a pressure regulator, a return line. 1. A method of making a pump assembly comprising:placing at least one in-tank, not sealed pump into a sealed housing; andforming an over pressure relief passage formed around the pumps in the sealed housing.2. The method of further comprising:forming a common fuel inlet in the sealed housing; andforming a common fuel outlet in the sealed housing;wherein the sealed housing contains at least two of the pumps.3. The method of where in the sealed housing is a compact design.4. The method of further comprising:forming a mounting bracket in the sealed housing;and forming a sealed electrical inlet in the sealed housing.5. The method of further comprising:installing a pre filter;installing a post filter; andinstalling a pressure regulator in the sealed housing to form a returnless fuel supply.6. The method of further comprising:installing a pressure regulator; andinstalling a return line;wherein the return line is connected to the pressure regulator and is capable of being connected to a fuel tank.7. A method of converting at least one in-tank claim 1 , not sealed pump into a pump assembly comprising the steps of:connecting the at least one in-tank, not sealed pump outside of a fuel tank; andsealing the pump assembly in a sealed housing.8. The method of further comprising:forming a common fuel inlet in the sealed housing; andforming a common fuel outlet in the sealed housing;wherein the sealed housing contains at least two of ...

HYDRAULICALLY ACTUATED DOUBLE-ACTING POSITIVE DISPLACEMENT PUMP SYSTEM FOR PRODUCING FLUIDS FROM A DEVIATED WELLBORE

A submersible, hydraulically actuated, multi-stage double-acting positive displacement pump system is provided. The system has a hydraulically actuated reciprocating linear double-acting motor centrally disposed between and connected to double-action fluid pumps on either side of the motor, with pistons of each of pump and the motor all in the annular space between an inner wall of the apparatus' cylindrical body and the outer wall of a cylindrical production fluid conduit concentrically disposed within the body, to pump wellbore fluid from outside the assembly through the pumps and into the central production fluid conduit. The rate and direction of hydraulic fluid flow through the actuator may be controlled by VFD motors and PLC controller on the ground, and through at least one electromechanical valve and two limit switches mounted to the downhole components. 1. A submersible system for lifting produced fluids from a wellbore to surface , comprising:a. a downhole assemblyb. a conduit from surface equipment to the downhole assembly to convey pressurized hydraulic fluid from a powered hydraulic pump to the downhole assemblyc. a second conduit from the downhole assembly to the same surface equipment to convey hydraulic fluid exhausted or vented from the downhole assembly to the surface equipmentd. a production tubing to convey produced fluid from the wellbore pumped by the downhole assembly to a second set of surface equipment for collection of produced fluids, the production tubing operatively connected between a connector on the downhole assembly and the surface collection equipment i. a first pump section having a cylinder and included piston and with included valves and fluid passageways forming a double-action pump', 'ii. a linear reciprocating hydraulic actuator section having a cylinder and included piston and with included valves and fluid passageways forming a double-action linear hydraulic motor, and', 'iii. a second pump section having a cylinder and ...

Pumping Installation Comprising A Pneumatic Pump and A Valve for Regulating Supply of the Pump with Compressed Gas

The pumping installation ( 16 ) comprises a pneumatic pump ( 22 ) for pumping a fluid ( 12 ) and a system ( 24 ) for supplying the pneumatic pump ( 22 ) with compressed gas. The supply system ( 24 ) comprises a source ( 34 ) of compressed gas and a fluidic connection ( 36 ) that fluidly connects the source ( 34 ) to the pneumatic pump ( 22 ). The pumping installation ( 16 ) also comprises a system ( 38 ) for controlling the supply of the compressed gas to the pneumatic pump ( 22 ), wherein the control system ( 38 ) comprises a valve ( 40 ) mounted on the fluidic connection ( 36 ) and switchable between a blocking state, in which the valve ( 40 ) prevents the flow of compressed gas between the source ( 34 ) and the pneumatic pump ( 22 ), and a passing state, in which the valve ( 40 ) allows the circulation of compressed gas between the source ( 34 ) and the pneumatic pump ( 22 ).

LOADLESS START VALVE FOR A COMPRESSOR

A compressor installation having a reduced load at start-up, including a gas compressor having an inlet and an outlet and a start-up valve connected to the outlet of the compressor. The start-up valve includes a valve body having an inlet and an outlet, a valve plunger connected to the inlet of the valve body, a spring connected to the valve body and the valve plunger, and a muffler. The start-up valve is configured to discharge the compressed gas through the muffler to atmosphere to reduce the load on the motor at start-up. After starting the compressor, the spring in the start-up valve is compressed after pressure is increased by the compressor and the discharge through the start-up valve to atmosphere is closed. 1. A start-up valve comprising:a valve body having an inlet, an internal passageway, and an outlet,a valve plunger connected at the inlet of the valve body,a spring provided within the internal passageway and connected to the valve plunger,wherein the start-up valve is configured in a way such that when the spring is in a relaxed state, the valve plunger is positioned away from the internal passageway, andwherein when the spring is in a compressed state, the valve plunger abuts the internal passageway and seals the inlet of the valve body.2. The start-up valve according to claim 1 , further comprising a muffler attached to the outlet of the valve body claim 1 , said muffler being configured to reduce noise when gas is vented through the muffler.3. The start-up valve according to claim 1 , further comprising a sealing ring connected to the valve plunger claim 1 , wherein when the spring is in the compressed state claim 1 , the sealing ring abuts an area around the internal passageway to seal the inlet.4. The start-up valve according to claim 3 , wherein the valve body includes a chamber claim 3 , wherein as the spring is compressed claim 3 , the valve plunger is pushed to a top portion of the chamber until the sealing ring seals the inlet of the valve body ...

METHOD FOR USE OF VEHICLE CLEANING APPARATUS

A method for cleaning vehicle exteriors using a stream of pressurizes steam. Preferably the stream of pressurized steam has a pressure in the range of 65 to 75 psi and is supplied at a temperature in the range of 295 to 310 degrees ° F. After applying the steam to a portion of a vehicle exterior surface and subjecting a first cloth to a stream of the pressurized stream, the vehicle's surface is first wiped with the first cloth and then wiped with a dry second cloth, resulting in removal of all contaminants from a vehicle's surface as well as polishing of the vehicle's surface. This method is repeated to clean the entire vehicle. The method eliminates the use of environmental pollutants such as soaps and the need to collect any such pollutants during the vehicle cleaning process. 1. A method for cleaning vehicles comprising the steps of:1) applying a stream of pressurized steam to a portion of the exterior surface of a vehicle such that at least a portion of said stream of pressurized steam condenses on said vehicle surface and heats the vehicle surface;2) wiping the condensed steam from said portion of said vehicle surface with a first cloth;3) wiping said portion of said vehicle surface with a dry second cloth while said portion of said vehicle surface is still heated by said steam, said second cloth comprising a microfiber material, in a single back and forth motion;4) repeating steps 1-3 on other portions of the exterior surface of the vehicle to clean the exterior surface of the vehicle.2. The method according to claim 1 , wherein said stream of pressurized steam has a pressure in the range of 65 to 75 psi.3. The method according to claim 1 , wherein said stream of pressurized steam has a temperature in the range of 295 to 310° F.4. The method according to claim 1 , wherein said stream of pressurized steam has a temperature in the range of 300 to 305° F.5. The method according to claim 1 , wherein said first cloth comprises double-sided loop pile.6. The method ...

COMPRESSOR COMPRISING A PRESSURE-RELIEF GROOVE

A compressor is disclosed. In one aspect, the compressor includes a pressure chamber which is delimited by at least two housing parts, the housing parts including sealing surfaces that are connected by a connection device which applies a contact pressing force between the sealing surfaces. At least one groove extending in a circumferential direction is arranged on at least one sealing surface. At least one relief opening is arranged on at least one of the housing parts. The relief opening connects the groove to the surroundings of the compressor and emanates from the groove. The groove is arranged such that when a predetermined maximum pressure is exceeded in the pressure chamber, a pressure-building medium can gather in the groove and at least partially escape through the relief opening. 1. A compressor for use in air conditioning systems of a motor vehicle , the compressor comprising:a housing including a first housing part and a second housing part which together define a pressure chamber, said first housing part having a first sealing surface and said second housing part having a second sealing surface, said first and second housing parts being connected by a plurality of connecting elements applying a contact pressure on said first and second sealing surfaces;a first groove formed in said first sealing surface of said first housing part and extending in a circumferential direction; anda first vent opening formed in said first housing part and extending from said first groove to the environment of the compressor, wherein said first groove and first vent opening are configured such that a pressurized medium is collected in said first groove and at least partially discharged from said first groove to the environment via said first vent opening in response to the pressurized medium within said pressure chamber exceeding a predetermined maximum pressure.2. The compressor of wherein said first vent opening is a radially-extending first relief channel formed in said ...

A METHOD OF CONTROL OF COMPRESSORS WITH MORE THAN TWO CAPACITY STATES

A method of operating a reciprocating compressor for a vapour compression system is disclosed. The reciprocating compressor comprises at least two cylinders and at least two unloaders, each unloader can be operated in an idle mode or in an active mode and therefore the reciprocating compressor can run in more than two capacity states. The capacity states alternates periodically between states in such a way that a substantially continuous range of effective capacities can be obtained while the individual cylinders are evenly loaded 1. A method of operating a reciprocating compressor defining two or more capacity levels , the reciprocating compressor comprising at least two cylinders and at least two unloaders , each unloader being capable of operating at least one of the cylinders to be in an idle mode or in an active mode , wherein at least some of the capacity levels of the reciprocating compressor are obtainable by two or more setting combinations of the unloaders , the method comprising the steps of:selecting an effective capacity to be delivered by the reciprocating compressor,selecting a first sequence of capacity levels of the reciprocating compressor, said first sequence providing the selected effective capacity,for each of the capacity levels being used in the first sequence, selecting a second sequence of setting combinations of the unloaders which obtain the capacity level, at least one of said second sequences comprising two or more different setting combinations, the capacity levels provided by the setting combinations of the final sequence provides the capacity levels of the first sequence of capacity levels, and', 'for each of the capacity levels, the final sequence provides the setting combinations of the corresponding second sequence of setting combinations of the unloaders, and, 'defining a final sequence of setting combinations of the unloaders, based on the first sequence of capacity levels and each of the second sequences of setting combinations ...

Suction Pump with a Safety Valve

A suction pump, in particular a breast pump, comprises a bleed valve with a bleed opening, a bleed body which seals the bleed opening and an operating means for operating the bleed body. The bleed body may be operated such that upon opening the valve initially only a partial region of the bleed opening is released and subsequently a greater part thereof or the whole bleed opening is released. The suction pump provides a large functionality with the smallest size and, furthermore, is cheap to produce and easily assembled. 1. (canceled)2. A suction pump with a safety valve , wherein the safety valve has a first step which opens at a first underpressure , wherein the safety valve has a second step which opens at a second underpressure , the first underpressure being quantitatively lower than the second.3. The suction pump according to claim 2 , wherein an air release valve has an air release membrane claim 2 , and wherein this air release membrane and a vacuum membrane used to generate the vacuum are designed integrally in the form of a common membrane plate.4. The suction pump according to claim 3 , wherein a part of the membrane plate is designed as a safety membrane of the safety valve.5. The suction pump according to claim 3 , wherein the pump comprises an upper housing part which receives a lifting magnet for actuating the air release membrane and receives an electric motor for actuating the vacuum membrane claim 3 , a middle housing part with an air release membrane seat which is provided for the air release membrane and which surrounds an air release opening claim 3 , and with a vacuum membrane seat for the vacuum membrane claim 3 , and a lower housing part for forming a vacuum channel between air release opening and an inlet opening of the vacuum membrane seat claim 3 , the membrane plate being arranged between the upper and middle housing parts claim 3 , and a valve plate being arranged between the middle and lower housing parts.6. The suction pump according ...

Systems, Devices, and/or Methods for Managing Water

Certain exemplary embodiments can provide a system comprising a vehicle. The vehicle comprises a 12 volt DC power outlet that is electrically coupled to a battery of the vehicle. A water tank is mounted inside of a cab of a vehicle. When all doors of the vehicle are closed, the water tank is substantially enclosed by the vehicle cab. 1. A system comprising:a vehicle, the vehicle comprising a 12 volt DC power outlet, the 12 volt DC power outlet electrically coupled to a battery of the vehicle;a water tank coupled to the vehicle;a pump coupled to a water tank, the pump constructed to generate water pressure from electrical energy obtained from the 12 volt DC power outlet.2. The system of claim 1 , wherein:an inlet port of the pump is coupled to a flexible hose.3. The system of claim 1 , wherein:an outlet port of the pump is coupled to a flexible hose.4. The system of claim 1 , further comprising:a base coupled to a frame of the pump.5. The system of claim 1 , further comprising:a valve coupled to a discharge line of the pump.6. The system of claim 1 , further comprising:a spray nozzle coupled to a flexible hose, the flexible hose coupled to an outlet port of the pump.7. The system of claim 1 , further comprising:a marine boat motor flusher coupled to an outlet port of the pump via a flexible hose.8. The system of claim 1 , wherein:the water tank is mounted inside of a cab of a vehicle, when all ports of the vehicle are closed, the water tank is substantially enclosed by the cab of the vehicle. This application claims priority to, and incorporates by reference herein in its entirety, pending U.S. Provisional Patent Application Ser. No. 62/554,991 (Attorney Docket No. 1219-02), filed Sep. 6, 2017.are executed in color.A wide variety of potential practical and useful embodiments will be more readily understood through the following detailed description of certain exemplary embodiments, with reference to the accompanying exemplary drawings in which:is a perspective view ...

Pump Assisted Chemical Feeder

A pump assisted chemical feeder for the treatment of pressurized water systems. There are various methods to dispense chemicals into pressurized water systems, including typical configurations of venturis, slug feeders, and electronic metering pumps. The described invention includes the use of adjustable bypass loops, pumps, and pressure differentials, to provide a reliable and adjustable means of introducing chemicals into a pressurized water system.

PROPORTIONAL AIR FLOW DELIVERY CONTROL FOR A COMPRESSOR

Provided herein are systems that enable proportional air flow delivery control for an air compressor. One system includes a pneumatic air compression system having a flow control member and being adapted to receive inlet air and to compress the inlet air to produce compressed air. The system also includes a pneumatic flow control system including a proportional control valve having a proportionally variable activation state. Varying the activation state of the proportional control valve regulates a pressure acting on the flow control member to regulate the flow of the compressed air produced by the pneumatic air compression system in a variable manner, and further regulates a power demand placed on the engine by the pneumatic air compression system in a variable manner. 1. A service pack system , comprising:an engine;a pneumatic air compression system driven by the engine and comprising a flow control member and being configured to receive inlet air and to compress the inlet air to produce compressed air; anda pneumatic flow control system comprising a proportional control valve having a proportionally variable activation state, wherein varying the activation state of the proportional control valve regulates a pressure acting on the flow control member to regulate the flow of the compressed air produced by the pneumatic air compression system in a variable manner, and further regulates a power demand placed on the engine by the pneumatic air compression system in a variable manner.2. The system of claim 1 , wherein the proportional control valve comprises an electronically activated variable solenoid valve.3. The system of claim 1 , wherein the flow control member comprises an inlet valve control piston claim 1 , and comprising a control piston pressure transducer configured to measure a pressure acting on the inlet valve control piston.4. The system of claim 1 , wherein the pneumatic flow control system comprises a controller configured to control operation of the ...

SEAL-LESS PISTON PUMP FOR LIQUEFIED GAS

A fuel supply system for a vehicle uses a seal-less piston LPG injunction pump which pumps fluid from a storage tank to an engine. The pump uses the vehicle's pneumatic air system, wherein the pressurized air of this system alternatingly drives an actuator magnetically coupled to a piston. 1. A dual-acting , seal-less piston pump for a fluid , comprising:a contained, tubular pump housing, which is formed as a thin-walled pump tube that internally defines a pump chamber, a piston wholly contained within the elongate pump chamber wherein the piston is driven in a reciprocating manner;a reciprocating drive actuator;the actuator being operatively connected to the pump piston through a seal-less connection, such that movement of one end of the drive actuator effects a direct, corresponding movement of the piston.2. The piston pump according to claim 1 , wherein said piston pump includes a main body slidable along said pump tube and interconnected to said actuator claim 1 , said main body and said piston being magnetically connected such that movement of said main body and said actuator moves said piston.3. The piston pump according to claim 2 , wherein said magnetic connection is defined by an inner magnet set provided on the piston within the pump chamber claim 2 , and an outer magnet set positioned outside of the pump housing adjacent the inner magnet set to form an indirect claim 2 , magnetic connection through the attractive magnetic fields defined by the magnet sets.4. The piston pump according to claim 3 , wherein said pump tube is made from non-magnetic material comprised of stainless steel or other non-magnetic material.5. The piston pump according to claim 4 , wherein said outer magnet set is carried by said movable main body which in turn is directly connected to the actuator which is defined by a pneumatic drive cylinder.6. The piston pump according to claim 5 , wherein reciprocation of the main body also reciprocates the piston due to the magnetic connection ...

SYSTEM AND METHOD FOR AN INLAND PIPELINE CONTROL STATION

A system and method for a modular inland pipeline valve control station includes a control valve, a control enclosure, a flow instrument, and a piping spool connected to a pipeline. The modular inland pipeline valve station is transportable and controlled from a central control location. The modular inland pipeline valve station is constructed, assembled, tested, and commissioned with the center control center at a module yard prior to being transported and installed at the pipeline. The modules can be installed slightly offset to the pipeline with drop-out or curved rotatable spools to allow possible access to the pipeline for testing and inspection and for connecting a pig receiver, pig launcher or a bypass. 1. A modular remotely control valve system for an underground pipeline , comprising:an underground pipeline having a riser;a control valve with an actuator remotely controlled;an instrument for measuring at least one of flow pressure, flow viscosity, flow rate, pig signal and temperature;an enclosure containing an electric panel and an instrumentation panel, wherein said instrumentation panel is comprised of a controller and is in wired connection to at least one of the instrument for measuring and said control valve, and wherein said electric panel is in wired connection to said control valve;a remote control center controlling said controller and receiving instrument measurements;a piping assembly connecting said control valve and the instrument and having two connections;a single structural frame in a mobile dimension for supporting said control valve, said instrument, said enclosure containing electric panel and instrumentation panel and said piping; anda piping spool connecting said piping assembly and said riser.2. The system of claim 1 , wherein said piping assembly is to said underground pipeline.3. The system of claim 2 , whereinsaid parallel piping assembly is at a same pipeline route of the underground pipeline between two risers.4. The system of ...

COMPRESSOR

A compressor (), in particular a compressor for compressing a coolant, including one or more pistons (), a cylinder block (), and a compressor housing which at least partially houses the compressor (), the piston(s) () being arranged in corresponding cylinder bores or cylinders () arranged at least partially in the cylinder block () and/or in the compressor housing so that they can move back and forth. The compressor () also includes an impedance tube () and an outlet () for releasing the coolant from the compressor, () in particular an outlet flange (). Said compressor () has an associated high pressure volume (), for one or more, in particular, for respectively two cylinders (), and a common high pressure volume (), in which the individual high pressure volumes () join, the common high pressure volume () being connected to the outlet () and the impedance tube () being arranged in the connection between the common high pressure volume () and the outlet () or the connection is created between the common high pressure volume () and the outlet (). The invention also relates to a corresponding coolant circuit and to a corresponding air-conditioning system. 1. A compressor for compressing a refrigerant , having one or a plurality of pistons and a cylinder block , and a compressor housing which encloses the compressor at least partially , the piston/pistons being arranged such that they can move to and fro in corresponding cylinder bores or cylinders which are arranged at least partially in the cylinder block and/or in the compressor housing , the compressor further comprising an impedance tube and an outlet for outputting the refrigerant from the compressor , in particular an outlet flange , wherein for one or more , in particular for in each case two cylinders , the compressor has an associated high pressure volume and a common high pressure volume , into which the individual high pressure volumes open , the common high pressure volume being connected to the outlet , ...

ECONOMIZER CONTROL SYSTEMS AND METHODS

An economizer control system includes a compressor including a compression area, a piston chamber, and an economizer inlet configured to receive economizer vapor into the compression area via a flow path that extends between the economizer inlet and the compression area. At least a portion of the flow path traverses the piston chamber. The economizer control system also includes a piston disposed within the piston chamber and configured to contact the economizer vapor. The piston is moveable between an open position that opens the flow path and a closed position that closes the flow path. Additionally, the economizer control system includes a biasing system configured to apply force to the piston to bias the piston toward the closed position. 1. An economizer control system for a vapor compression system , comprising:a compressor including a compression area, a piston chamber, and an economizer inlet configured to receive economizer vapor into the compression area via a flow path that extends between the economizer inlet and the compression area, wherein at least a portion of the flow path traverses the piston chamber;a piston disposed within the piston chamber and configured to contact the economizer vapor, wherein the piston is moveable between an open position that opens the flow path and a closed position that closes the flow path; anda biasing system configured to apply force to the piston to bias the piston toward the closed position.2. The economizer control system of claim 1 , wherein the biasing system is configured to transition the piston to the open position in response to the economizer vapor having at least a threshold pressure.3. The economizer control system of claim 1 , wherein the flow path comprises:a channel having a first end defined by the economizer inlet and a second end defined by the piston chamber; anda passageway having a third end defined by the piston chamber and a fourth end defined by the compression area, wherein the piston in the ...

SCRAPING CLEANER

A scraping cleaner can include a bottle, a sprayer mechanism, and at least one scraping edge. The bottle can have a body portion extending along a vertical axis from a base that is substantially flat to a top that defines a connecting portion. The body portion can be configured to receive and retain a liquid cleaning solution in a cavity. The sprayer mechanism can include a pump assembly. The pump assembly can have a pump and a lever. The lever can be pivotally engaged with the pump such that pivoting movement of the lever induces the pump to draw the liquid cleaning solution from the cavity. The scraping edge is integral with the body portion and is positioned at the base. The at least one scraping edge extends along a path in a plane that is transverse to the vertical axis. 1. A scraping cleaner comprising:a bottle being plastic and having a body portion and a connecting portion, said body portion extending along a vertical axis from a base that is substantially flat to a top that defines said connecting portion, said body portion defining an aperture centered on said vertical axis and a cavity in fluid communication with said aperture, said body portion configured to receive and retain a liquid cleaning solution in said cavity;a sprayer mechanism including a cap portion, a head and a pump assembly, said cap portion selectively engageable with said connecting portion to selectively close said cavity when engaged with said connecting portion, said head and said pump assembly engageable with said cap portion, said pump assembly mounted on said head and having a pump and a lever, said pump including an inlet in fluid communication with said cavity and an outlet directed fluidly away from said cavity, said lever pivotally engaged with said pump such that pivoting movement of said lever induces said pump to draw the liquid cleaning solution from said cavity through said inlet and out of said outlet; andat least one scraping edge integral with said body portion and ...

BELLOWS PUMP DEVICE

Provided is a bellows pump device that is able to reduce fall of a discharge pressure of a transport fluid during contraction operation of a bellows. The bellows pump device supplies pressurized air to a hermetic discharge-side air chamber thereby to cause a bellows disposed within the discharge-side air chamber to perform contraction operation to discharge a transport fluid, and discharges the pressurized air from the discharge-side air chamber thereby to cause the bellows to perform expansion operation to suck the transport fluid. The bellows pump device includes an electropneumatic regulator configured to adjust an air pressure of the pressurized air to be supplied to the discharge-side air chamber, such that the air pressure is increased so as to correspond to a contraction characteristic of the bellows during the contraction operation of the bellows. 1. A bellows pump device that supplies pressurized air to a hermetic air chamber thereby to cause a bellows disposed within the air chamber to perform contraction operation to discharge a transport fluid , and discharges the pressurized air from the air chamber thereby to cause the bellows to perform expansion operation to suck the transport fluid , the bellows pump device comprising:an electropneumatic regulator configured to adjust an air pressure of the pressurized air to be supplied to the air chamber, such that the air pressure is increased so as to correspond to a contraction characteristic of the bellows during the contraction operation of the bellows.2. The bellows pump device according to claim 1 , wherein the electropneumatic regulator adjusts the air pressure every unit time by using the following equation:{'br': None, 'i': 'P=aX+b,'}wherein P denotes the air pressure, a denotes a pressure increase coefficient, X denotes an expansion/contraction position of the bellows, and b denotes an initial air pressure.3. The bellows pump device according to claim 1 , whereinthe bellows includes a first bellows and ...

Engine-driven oil pump

An engine-driven oil pump has an engine, a pump unit, an oil diverting device, a manual control unit, and a remote control unit. The engine is connected to the pump unit. The oil diverting device is mounted on the pump unit and selectively pumps hydraulic oil from the pump unit into the manual control unit or the remote control unit. With the engine, the engine-driven oil pump can generate power independently instead of relying on external power supply. Besides, the electromagnetic valve of the remote control unit allows the user to remotely control the oil path of the hydraulic oil, so the user is not required to stay along the engine-driven oil pump to manually switch the oil path, and therefore the engine-driven oil pump is more efficient regarding manpower.

KNIFE BLOCK SANITIZER

Disclosed is a novel single spray attachment for a spray bottle. A spray dispensing device made of a molded material which allows a fluid chemical composition of sanitizing fluid to be forcefully discharged through it into the small opening cut outs of a knife block. The device serves as a guard to enter the opening and protect a splash back from occurring when the user applies a sanitizing fluid spray solution by pressure into the inside portion of the knife block slots which are of various sizes. 1. A spray-attachment comprising: the rear intake side including an circular head attachment cavity, a cylindrical head disposed within the circular head attachment cavity, and a supply channel disposed within the cylindrical head for receiving a pressurized fluid; and', 'the front discharge side with a substantially flat splash guard and a substantially rectangular slot guide disposed thereon, the rectangular slot guide including a plurality of nozzles in fluid communication with the cylindrical head for directing the pressurized fluid therefrom., 'a nozzle with front discharge side and a rear intake side,'}2. The spray-attachment of claim 1 , wherein the rectangular slot guide has a width between 0.050 and 0.200 inches and a length between 0.200 and 0.800 inches.3. The spray-attachment of claim 1 , wherein the rectangular slot guide protrudes from the flat splash guard between 0.100 inches and 0.400 inches.4. The spray-attachment of claim 1 , wherein the nozzle has a supply channel manifold formed therein claim 1 , the supply channel in fluid communications between the supply channel and the plurality of plurality of nozzles.5. The spray-attachment of claim 1 , wherein the nozzle is substantially shaped as an isosceles trapezoid with a shorter edge defining the rear intake side and a longer edge defining the front discharge side claim 1 , and the rectangular slot guide disposed on along the longer edge.6. The spray-attachment of claim 1 , wherein the circular head ...

SANITIZING AND CLEANING PROCESS AND APPARATUS

A process for spraying water containing ozone and other substances is disclosed. A spray nozzle is configured having an orifice, with a plenum or chamber around the orifice. An open end of a tube terminates immediately adjacent the orifice, and is connected to at least a supply of ozone from an ozone generator so that ozone is inserted into a stream or spray of water from the orifice. A halogen generator may also be provided for generating a halogen sanitizer that may be in the spray of water or combined with ozone. Other substances that may be used are the fluid from the halogen generator, soaps and sanitizing metals. 1. A process for sanitizing and cleaning comprising:providing a source of a carrier fluid,providing a spray head for dispensing said carrier fluid,mixing at least ozone with said carrier fluid.2. A process for sanitizing and cleaning as set forth in further comprising mixing a halogen with said carrier fluid.3. A process for sanitizing and cleaning as set forth in further comprising generating said halogen from electrolysis of a halogen salt.4. A process for sanitizing and cleaning as set forth in further comprising generating chlorine as said halogen.5. A process for sanitizing and cleaning as set forth in further comprising mixing reaction products from electrolyzing a halogen salt with said carrier fluid.6. A process for sanitizing and cleaning as set forth in further comprising mixing reaction products of electrolysis of chlorine with said carrier fluid.7. A process for sanitizing and cleaning as set forth in further comprising providing a mixing chamber around an orifice in said spray head.8. A process for sanitizing and cleaning as set forth in further comprising providing said spray head on a pressure washer.9. A process for sanitizing and cleaning as set forth in wherein said spray head is part of a manually operated bottle having a trigger to create said spray.10. A process for sanitizing and cleaning as set forth in further comprising mixing ...

Selectable flow hydraulic gear pump

A selective flow hydraulic gear pump has an integral unit with a front pump section and a rear pump section. The front pump section has a pumping gear set, gear plate, and bearing plate housing. The rear pump section has a pumping gear set, gear plate, and cover housing. The integral unit has an inlet port common to both the bearing plate housing and the cover housing. Check valves and solenoid operated control valves are contained within the bearing plate housing and the cover housing and are associated with a first fluid conduit. A second fluid conduit is in communication with and extends between the bearing plate housing an outlet port in the cover housing.

PRESSURE REGULATING BYPASS VALVE

A pressure regulating bypass valve () comprises a hollow element () internally defining a chamber (C); an interception member () housed inside the chamber (C) and that is slidably movable between a discharge position and a delivery position; and an elastic means () configured to exert an elastic force on the interception member () so as to push the interception member () towards the discharge position and determine a positioning and/or movement of the interception member () between the discharge position and the delivery position; the interception member () is further positionable in an intermediate position between the discharge and delivery positions. The elastic means () comprises a first elastic element () and a second elastic element () having greater rigidity than the first elastic element () and they are arranged in series so that the interception member () can reach the intermediate position by means of a deformation of at least the first elastic element () and in such a manner that a subsequent passage of the interception member () from the intermediate position to the delivery position is determined at least partly by an at least partial compression of the second elastic element (). 2120. The valve () according to claim 1 , wherein the interception member () claim 1 , in the intermediate position claim 1 , occludes a fluid connection between the inlet section (I) and the discharge section (S) and a fluid connection between the inlet section (I) and the delivery section (E).31203132203131. The valve () according to claim 1 , wherein the passage of the interception member () from the discharge position to the intermediate position leads to compression of the first elastic element () only claim 1 , but not of the second elastic element () and/or wherein the passage of the interception element () from the intermediate position to the delivery position leads to compression of the second elastic element () only claim 1 , whereas the first elastic element () is ...

METERING PUMP HAVING AN INTEGRATED OVERFLOW VALVE, AND VALVE INSERT FOR A METERING PUMP

An overflow valve is built into a metering head for a metering pump used with aggressive media and under high pressure. The overflow valve follows the suction valve or expands it, and directly lowers a critical pressure that occurs in the metering head, using an overflow line. In this way, the safety of the arrangement is improved, and at the same time, less construction space is used up by the additional valve. 1. A metering pump comprising:(a) a suction valve;(b) a pressure valve;(c) a metering head having a suction side and a pressure side, wherein the metering head is closed off with the suction valve on the suction side and with the pressure valve on the pressure side;(d) a membrane arranged for alternating generation of a partial vacuum and of an excess pressure in the metering head;(e) an overflow line leading out of the metering head; and(f) an overflow valve associated with the metering head, wherein the overflow valve opens up the overflow line leading out of the metering head when an upper pressure limit value is reached in the metering head.2. The metering pump according to claim 1 , wherein the overflow line is connected with a suction line connected with the metering head on the suction side claim 1 , or with a media container wherein a free end of the suction line opens into the media container.3. The metering pump according to claim 1 , wherein the overflow line is identical to the suction line.4. The metering pump according to claim 3 , wherein the suction valve is formed as a structural unit with the overflow valve claim 3 , wherein a ball forms a shut-off body common to the suction valve and the overflow valve claim 3 , wherein the ball is movable out of a valve seat for the ball both in a pressure direction and in a suction direction.5. The metering pump according to claim 4 , further comprising a pressure spring claim 4 , wherein the ball is movable out of the valve seat in the suction direction only against a force of the pressure spring claim ...

METHOD AND APPARATUS FOR DEACTIVATING A HYDRAULIC DEVICE THAT IS LEAKING HYDRAULIC OIL

A method of deactivating an underwater hydraulic device provides a hydraulic device that is capable of being operated under water, the device having a hydraulic cylinder with a pushrod and a piston. The device is lowered below a water surface with a hose reel that is located at the water surface area such as on a marine vessel. The hose reel includes first and second hydraulic hoses that connect to the cylinder on opposing sides of the piston. Fluid flow in the first and second hydraulic hoses is continuously monitored. The ratio of the volume of fluid flowing into the cylinder from one side of the piston to the volume of fluid flowing into the cylinder from the other side of the piston is continuously calculated with a computer or controller. The hydraulic device is deactivated if the ratio varies from a preset value. One embodiment includes a plurality of flow meters for measuring fluid flow to and from one or more hydraulically powered apparatuses. In one embodiment outputs of the flow meters are analyzed to determine if the hydraulic system has a leak, and if a leak is detected, a warning is issued and/or one or more of the connected hydraulically powered apparatuses are shut down, and/or the hydraulic power supply is shut down. In one embodiment, the flow lines are jointed flow lines comprised of hose joints connected end to end. Some or all of the hoses have check valves. In one embodiment, the check valves stop flow in either direction if the flow pressure drops below a selected pressure. 1. A method of deactivating an underwater hydraulic device , comprising the steps of:a) providing a hydraulic device that is capable of being operated under water, the device having a hydraulic cylinder with a pushrod and a piston;b) lowering the device below a water surface with a hose reel that is located at the water surface area;c) wherein the hose reel of step “b” includes first and second hydraulic hoses that connect to the cylinder on opposing sides of the piston;d) ...

FAILURE MODE DETERMINATION MEANS

A method for determining a failure mode of a comfort device, the method includes obtaining a first input during a first operation of the comfort device, wherein the first operation is a known normal operation; classifying the first input into a class including a series of attributes and storing the first input in a database of input classes; obtaining a second input during a second operation of the comfort device; and classifying the second input into a class including a series of attributes and comparing the class of the second input to the class of the first input in a first comparison, wherein if a match exists, comparing the series of attributes of the second input to the series of attributes of the first input in a second comparison, wherein if a discrepancy is detected, a warning is raised. 1. A method for determining a failure mode of a comfort device disposed in an environment , said method comprises:(a) obtaining a first input of the environment during a first operation of the comfort device, wherein said first operation is a known normal operation;(b) classifying said first input into a class comprising a series of attributes and storing said first input in a database of input classes;(c) obtaining a second input of the environment during a second operation of the comfort device; and(d) classifying said second input into a class comprising a series of attributes and comparing said class of said second input to said class of said first input in a first comparison, wherein if a match exists, comparing said series of attributes of said second input to said series of attributes of said first input in a second comparison, wherein if a discrepancy is detected, a warning is raised.2. The method of claim 1 , wherein said second comparison comprises comparing an order of said series of attributes of said second input to an order of said series of attributes of said first input.3. The method of claim 1 , wherein said second comparison comprises comparing a frequency ...

HIGH-PRESSURE CONSTANT FLOW RATE PUMP AND HIGH-PRESSURE CONSTANT FLOW RATE LIQUID TRANSFER METHOD

A high-pressure constant flow rate pump transfers a solvent from a low-pressure side liquid transfer system even if a difference between mixing ratios is large when solvents are mixed during high-pressure gradient liquid transfer. A pressure detection value from a second pressure sensor and a pressure detection value from a fourth pressure sensor are compared with each other. If the pressure detection value Pof the second pressure sensor is equal to or greater than the pressure detection value Pof the fourth pressure sensor, a second check valve comes into an opened state and operation is ended. If Pis less P, leakage determination is implemented. If it is determined that no leakage occurs, the type of the solvent is identified. A compression distance of a second plunger which is determined for each solvent and stored in a memory is added and the first plunger is driven. 1. A high-pressure constant flow rate pump , comprising:a first pump for discharging a first solvent;a second pump for discharging a second solvent;a mixer for mixing the first solvent discharged from the first pump with the second solvent discharged from the second pump and transferring the mixed solvent;a first pressure sensor disposed in a passage between the first pump and the mixer, the first pressure sensor detecting a pressure of the first solvent discharged from the first pump;a first check valve disposed in a passage between the first pressure sensor and the mixer;a second pressure sensor disposed in a passage between the second pump and the mixer, the second pressure sensor detecting a pressure of the second solvent discharged from the second pump;a second check valve disposed in a passage between the second pressure sensor and the mixer; and control a discharge amount of the first solvent from the first pump and a discharge amount of the second solvent from the second pump to change a mixing ratio of the first solvent and the second solvent in the mixer,', 'determine whether the first ...

Parts Washer

A parts washer comprising an upper portion and a lower portion, in which the part may be washed in the upper portion and the lower portion includes a drum for containing the aqueous cleaning solution. A method of washing an article in a parts washer and a method of regenerating the cleaning solution within the parts washer are also disclosed. 1. A parts washer comprising: an upper portion including a sink basin , a lid through which two integrated heavy duty gloves are passed and fixed , a viewing panel , a high pressure nozzle , and a drain from the sink basin; and a lower portion including a drum for containing the aqueous cleaning solution , a high pressure pump for pumping solution from the drum to the high pressure nozzle , a down tube passing from the drain from the sink basin in the upper portion into the drum for passing excess liquid from the upper portion back to the lower portion for regeneration and re-use , heating means within the drum for heating the cleaning solution , and safety and control means for operating the parts washer.2. A parts washer as claimed in claim 1 , in which the upper section further includes a frame for supporting the part to be washed.3. A parts washer as claimed in claim 1 , in which the upper section further includes an air knife for cleaning the viewing panel.4. A parts washer as claimed in claim 1 , in which the drum is configured to meet the requirements to be a shipping container.5. A parts washer as claimed in claim 1 , in which the drum has a specially adapted bung to enable liquid to pass from the drum to the pump without extending past the outside of the drum.6. A parts washer as claimed in claim 1 , in which the drum includes an integrated drain.7. A parts washer as claimed in claim 1 , in which the lid is a four bar lid mechanism.8. A parts washer as claimed in claim 1 , in which the lid is locked by means of a reed switch.9. A parts washer as claimed in claim 8 , in which the reed switch is located between two ...

HIGH-PRESSURE CLEANING APPLIANCE

A high-pressure cleaning appliance is provided, including a housing having a motor and a pump, driven by the motor, arranged therein, and including at least two rotatably mounted running wheels, a push bar movable back and forth between a parking position and an operating position, and a locking device for releasably locking the push bar, the locking device including an actuating member which is coupled by at least one coupling member to at least one locking member which interacts with the push bar and is movable from a locking position to a release position by actuating the actuating member. So that the high-pressure cleaning appliance can be assembled more cost-effectively and more easily, the locking device includes a prefabricated constructional unit which forms the actuating member, the at least one coupling member and the at least one locking member and is movably mounted on or in the housing. 1. A high-pressure cleaning appliance comprising a housing having a motor and a pump for a cleaning liquid , driven by the motor , arranged therein , and comprising at least two rotatably mounted running wheels for moving the high-pressure cleaning appliance , a push bar movable back and forth between a parking position and an operating position , and a locking device for releasably locking the push bar in at least one of the parking position and the operating position , the locking device comprising an actuating member which is coupled by at least one coupling member to at least one locking member which interacts with the push bar and is movable from a locking position to a release position by actuating the actuating member , wherein the locking device comprises a prefabricated constructional unit which forms the actuating member , the at least one coupling member and the at least one locking member and is movably mounted on or in the housing.2. The high-pressure cleaning appliance in accordance with claim 1 , wherein the actuating member comprises an actuating ram ...

SQUEEZE-TYPE PUMP

A squeeze-type pump includes a base, a nozzle, a sac, a check valve and two coves. The base, the nozzle and the sac are made in one piece. The check valve is located between the sac to allow air to go to the nozzle from the sac, but not vice versa. The covers are connected to the base. 1. A squeeze-type pump comprising:{'b': 11', '112', '113', '112', '114', '112', '13', '112', '14', '112', '15', '112, 'a base () comprising a bottom (), a first opening () in the bottom (), a second opening () in the bottom (), a first cavity () in the bottom (), a second cavity () in the bottom (), and a third cavity () in the bottom ();'}{'b': 17', '11', '171', '14', '114, 'a nozzle () formed on the base () and formed with space () in communication with the second cavity () through the second opening ();'}{'b': 16', '11', '161', '13', '113, 'a sac () formed on the base () and formed with a space () in communication with the first cavity () through the first opening ();'}{'b': 20', '14', '23', '21', '13', '22', '171', '17, 'a check valve () inserted in the second cavity () and formed with a channel () that comprises an entrance () in communication with the first cavity () and an exit () in communication with the space () of the nozzle ();'}{'b': '40', 'claim-text': [{'b': 411', '112, 'a first face () in contact with the bottom ();'}, {'b': 43', '411', '13', '161', '16, 'a first auxiliary cavity () made in the first face () combined with the first cavity () and connected to the space () of the sac ();'}, {'b': 44', '411', '40', '14', '17, 'a second auxiliary cavity () made in the first face () of the first cover () and aligned with the second auxiliary cavity () and the nozzle ();'}, {'b': 46', '412', '40, 'a sleeve () formed on the second face () of the first cover ();'}, {'b': 46', '44, 'an aperture via which the sleeve () is in communication with the second auxiliary cavity ();'}, {'b': 47', '46, 'a tube () comprising an end inserted in the sleeve () and another end for insertion ...

Reciprocating compressor

A reciprocating compressor is disclosed which includes a housing which includes an intake chamber, a discharge chamber, a cylinder, and a crank chamber, the crank chamber having a lower portion formed as an oil storage chamber configured to store lubricant; a piston which is reciprocatively located in the cylinder; a crank shaft which is rotatably arranged in the crank chamber and is coupled to the piston via a connecting rod; a pressure equalization path through which the intake chamber and the crank chamber communicates, the pressure equalization path having an opening end open to the crank chamber; and a partition member which is located between the crank shaft and the opening end of the pressure equalization path. The partition member extends below the crank shaft from one side to the other side of the crank shaft so as to cover at least the lower side of the crank shaft.

Improper Opening Detection Method of Multiple Suction Reciprocating Compressor Suction Valve

The present invention relates to the compressors technological field used preferentially in cooling systems. Problem to be solved: Difficulty in detecting improper opening of the high pressure suction valve in multiple suction reciprocating compressor and, in more severe cases, interrupts operation of low pressure line(s). Problem resolution: Implementation of method which monitors at least one variable proportional to electrical engine torque, and based on detection of at least on positive peak of said variable proportional to torque of said electrical engine, identify and/or detects—in real time—improper opening of the valve. 1. Improper opening detection method of a multiple suction reciprocating compressor suction valve , the reciprocating compressor comprising:at least one compression mechanism comprising at least one compression cylinder, at least one piston capable of reciprocating linear movement inside the cylinder, an at least one “valve-port” set fluidly coupled to the compression cylinder integrated by at least one suction port, at least one actuating suction valve cooperating with its respective suction port, and at least one electrical magnetic generator element capable of interact selectively with the suction valve;at least an electrical engine cooperating with said piston; at least one processing electronic central;at least one sensor capable of measure at least one variable proportional to torque of said electrical engine;the method characterized bythe processing electronic central monitoring at least one variable proportional to torque of said electrical engine by the sensor capable of measuring at least one variable proportional to torque of said electrical engine;the improper opening detection of the suction valve being made by the detection of at least one peak of said variable proportional to torque of said electrical engine during power of the electromagnetic field generator element.2. Method claim 1 , of claim 1 , wherein the variable ...

PRESSURE WASHING SYSTEM WITH TWO-STAGE OZONATION

A pressure washing system uses two-stage ozonation. The pressure washing system includes a container for holding water; a first ozone supply for supplying ozone to ozonate the water in the container in a first ozonation process; a pressure pump configured to pressurize the ozonated water; a second ozone supply for supplying ozone to further ozonate the water to generate two-stage ozonated water in a second ozonation process that is different from the first ozonation process; and a sprayer configured to receive the two-stage ozonated water. 1. A pressure washing system using two-stage ozonation , comprising:a container for holding water;a first ozone supply for supplying ozone to ozonate the water in the container in a first ozonation process;a pressure pump configured to pressurize the ozonated water;a second ozone supply for supplying ozone to further ozonate the water to generate two-stage ozonated water in a second ozonation process that is different from the first ozonation process; anda sprayer configured to receive the two-stage ozonated water.2. The pressure washing system of claim 1 , further comprising:a water treatment device located inside the container, configured to receive ozone from the first ozone supply and distribute the ozone into the water.3. The pressure washing system of claim 2 , wherein the water treatment device comprises a porous tube configured to diffuse the ozone.4. The pressure washing system of claim 3 , wherein the porous tube is configured in at least one of:a coiled shape;a helical shape;a spiral shape;a circular shape; ora wound shape.5. The pressure washing system of claim 1 , the first ozone supply and the second ozone supply have different configurations.6. A pressure washing method claim 1 , comprising:diffusing, in a first ozonation process, ozone into water held in a water container to generate ozonated water;increasing, in a second ozonation process, ozone concentration of the ozonated water; andgenerating a high pressure ...

PNEUMATIC PUMP

A pneumatic pump is provided including a pressure vessel having a lower transfer port and an upper ventilation port; a transfer assembly communicating with said transfer port and including an inlet for pumpable material, and a delivery outlet, one or both of said inlet and said outlet having a valve facilitating selective flow therethrough; a venturi assembly having a suction side communicating with said ventilation port and a closable exhaust vent selectively operable to cycle said ventilation port between a suction phase and a pressurized phase; and a controller adapted to selectively close the exhaust vent. A rotatable valve apparatus is further provided. Also provide is a pneumatic pump fitted with a rotatable valve apparatus. 1. A rotatable valve apparatus for use in a pneumatic pump including:first and second valve bodies having respective rotation chambers interposed between respective valve body inlets and valve body outlets;first and second rotatable valves located within the respective rotation chambers; anda valve actuator connected with the first and second rotatable valves, wherein the valve actuator is configurable between:a first configuration wherein the first rotatable valve is open and flowable substance can pass between the first valve body inlet and the first valve body outlet, and the second rotatable valve is closed and flowable substance is constrained or prevented from passing between the second valve body inlet and the second valve body outlet; anda second configuration wherein the second rotatable valve is open and flowable substance can pass between the second valve body inlet and the second valve body outlet, and the first rotatable valve is closed and flowable substance is constrained or prevented from passing between the first valve body inlet and the first valve body outlet.2. The rotatable valve apparatus of claim 1 , comprising an intermediate body located between the first valve body and the second valve body claim 1 , wherein the ...

COMPRESSOR GAS CUTOFF

Embodiments of a compressor cutoff are presented. In an embodiment, the present invention includes apparatus for cutting off the flow of gas/liquid in the event of compressor failure or breakdown. In this embodiment, gas/liquid flows from its source through one or more passageways into a first input chamber, and also through one or more other passageways into a second input chamber, where the first and second input chambers are separated by a stop plunger. During the down-stroke of the compressor's piston, gas/liquid in the first chamber passes (or is drawn) through an inlet valve of the piston bore, and during the up-stroke of the piston that gas/liquid is forced through an outlet valve to a tank or other compressed gas/liquid receptacle. So long as the compressor operates normally, the pressure in the two input chambers (i.e., on each side of the stop plunger) will be substantially equal, thereby keeping the stop plunger in place. If, however, the compressor fails in a manner that exposes gas/liquid in the piston bore to the atmosphere, or otherwise results in a decrease in pressure in the piston bore, the pressure in the first input chamber will fall below the pressure in the second input chamber, thereby causing the stop plunger to move to a position in which it blocks the flow of gas/liquid from entering the inlet valve of the piston bore. 1. An apparatus , comprising:a first input passageway to an input chamber;a second input passageway to the input chamber;a stop plunger in the input chamber separating the input chamber into a first input chamber and a second input chamber; andan outlet;whereby the stop plunger blocks the outlet when pressure in the second input chamber exceeds the pressure in the first input chamber.2. The apparatus of claim 1 , wherein the first input passageway allows a medium to pass into the first input chamber claim 1 , and the second input passageway allows the medium to pass into the second input chamber.3. The apparatus of claim 2 , ...

CLEANING MACHINE

In a cleaning machine provided with a main body which discharges cleaning liquid by a pump and a cleaning gun which is connected to the main body, the cleaning machine has: an electric motor which receives electric power supply from a battery pack and which drives the pump; and a control circuit which changes a rotating speed of the electric motor so as to increase/decrease the discharging pressure of the cleaning liquid. When the voltage of the battery pack is decreased down to a predetermined second voltage higher than a predetermined first voltage at which the electric power supply to the electric motor is stopped, the largest discharging pressure of the cleaning liquid is decreased to be lower than a current-state discharging pressure thereof. 133-. (canceled)34. A cleaning machine provided with a main body which discharges cleaning liquid by a pump and a cleaning gun which is connected to the main body ,the cleaning machine comprising:an electric motor which receives electric power supply from a battery and which drives the pump; anda control part which changes a rotating speed of the electric motor so as to increase/decrease a discharging pressure of the cleaning liquid, andthe largest discharging pressure of the cleaning liquid being decreased to be lower than a current-state discharging pressure thereof when a voltage of the battery is decreased down to a predetermined second voltage higher than a predetermined first voltage at which the electric power supply to the electric motor is stopped.35. The cleaning machine according to claim 34 ,wherein, when the voltage of the battery is decreased down to the second voltage, the rotating speed of the electric motor is decreased.36. The cleaning machine according to claim 35 ,wherein, when the voltage of the battery is decreased down to the second voltage, an applied voltage of the electric motor is decreased.37. The cleaning machine according to claim 34 ,wherein the electric motor is driven in at least two ...