Hydrostatischer Antrieb

Pompa pneumatica a doppio effetto.

Flüssigkeitskolbenmotor.

Dispositif moteur à mouvement alternatif

Displacement unit and hydraulic start-stop system comprising such a displacement unit.

Die vorliegende Erfindung betrifft eine Verdrängereinheit [1], insbesondere Axialkolbenmaschine, wobei ein Einweg-/Rückschlagventil [3] im Gehäuse [2] der Verdrängereinheit [1] untergebracht ist. Die Verdrängereinheit [1] umfasst dabei ein Gehäuse [2], ein Triebwerk [39] zum Wandeln einer rotorischen Leistung in eine hydraulische Leistung, einen Sauganschluss [4] zum Zuführen eines Fluids an das Triebwerk [39] sowie das besagte Einweg-/Rückschlagventil [3].

Method for controlling a hydraulic machine in a control system

The invention relates to a method for controlling a hydraulic machine (204) in a control system when utilizing the hydraulic machine as a pump, in which an electric machine (202) is connected in a driving manner to the hydraulic machine (204), comprising the steps of detecting at least one operating parameter, of determining, on the basis of the detected operating parameter, whether a pressure supplied by the hydraulic machine (204) is to be limited, and of controlling the electric machine (202) correspondingly.

Engine for washing machines and other applications

METHOD FOR CONTROLLING A HYDRAULIC CYLINDER AND CONTROL SYSTEM FOR A WORK MACHINE

The invention relates to a method for controlling a hydraulic cylinder (108), comprising the steps of detecting at least one operating parameter, and of variably controlling a communication path between the piston-rod side (212) and piston side (208) of the hydraulic cylinder on the basis of the detected operating parameter.

Гидродвигатель

Изобретение относится к устройствам гидроавтоматики, работающим за счет энергии потока воды. Гидродвигатель включает гидроцилиндр 1 двухстороннего действия со штоком 4, задвижку 11 с обводным гидравлическим каналом 13 с эжектором 14, установленную на напорном трубопроводе 12 и распределитель 10, кинематически связанный со штоком 4 через переключатель 8 и гидравлически - с напорным трубопроводом 12 через фильтр 28, эжектором 14, подпоршневой полостью 2 гидроцилиндра 1 через параллельно установленные обратный клапан 31 и регулируемый дроссель 32 и надпоршневой полостью 3 гидроцилиндра 1. Посредством распределителя 10 подпоршневая и надпоршневая полости 2 и 3 имеют возможность поочередного соединения с эжектором 14 и напорным трубопроводом 12 до задвижки 11. Распределитель 10 соединен с надпоршневой полостью 3 через параллельно установленные обратный клапан 34 и регулируемый дроссель 35. Эжектор 14 соединен с распределителем 10 через подпружиненный обратный клапан 37. Каналы связи распределителя ...

ЦИЛИНДРОВЫЙ ПРИВОД, ИСПОЛЬЗУЮЩИЙ СЖАТЫЙ ВОЗДУХ

Изобретение относится к области двигателестроения. Цилиндровый привод использует сжатый воздух и включает множество сильфонных цилиндров, раздвигающихся за счет сжатого воздуха, соединительный шток, закрепленный на каждом сильфонном цилиндре и входящий внутрь корпуса через его верхнюю часть, коленчатый вал, соединенный последовательно с соединительным штоком для приведения во вращение за счет поднятия соединительных штоков, резервуар высокого давления, подающий сжатый воздух в сильфонные цилиндры через линию подачи сжатого воздуха, и клапан, размещенный в каждом сильфонном цилиндре, разделяющий пространство внутри сильфонного цилиндра на верхнюю и нижнюю камеры и открывающий/закрывающий проход воздуха в эти камеры. Клапан закрывается, отделяя верхнюю и нижнюю камеры друг от друга, когда сильфонные цилиндры заполняются сжатым воздухом, и открывается, когда сильфонные цилиндры поднимаются до верхней мертвой точки. Клапан соединен со вспомогательным сильфонным цилиндром, внутри которого размещена ...

Improvements in electrically controlled fluid-pressure-actuated motors, for operating doors, gates, and other like members

... 182,690. Dehn, F. B., (National Pneumatic Co.). July 12, 1921. Retractive switches; contacts; fluid actuation.-A fluid pressureactuated motor, more particularly for operating doors, gates, and like members, comprises electromagnets 11, 12 in normally open circuits for opening and closing valves 8, 9 controlling the supply of fluid pressure to the opposite ends of a motor cylinder. 6, 7. push-buttons 19, 20 for closing the circuits of the electromagnets 11, 12, the momentary closing of either of these circuits also causing the operation of one of the solenoids 29, 30, and associated armatures 31, 32, whereby the operating circuit is maintained closed until the operation of the motor is completed or until the other push button is operated. Within the cylinder for operating the door, &c. is a double piston 1, 2 the ends of which are connected by a rack 3 gearing with a toothed segment 4 on a shaft 5. When either of the pistons 1, 2 is moved to the end of the cylinder, the segment 4 is rotated ...

THERMAL-HYDRAULIC ENGINE

HYDRODYNAMIC ENGINE

L'invention concerne un moteur d'entrainement qui fonctionne en s'appuyant sur les bases et les propriétés hydrauliques avec comme principe, d'exploiter la dynamique des fluides. C'est un bloc métallique qui sera usiné par tournage et fraisage comme ses pièces internes mais qui peuvent être façonnés par des moyens plus évolués. Ce moteur est constitué d'un arbre d'entrainement qui transfert son utilité selon les règles de l'hydraulique, et s'impose comme étant un corps qui renferme toute une fonctionnalité avec ses propres éléments de pompage d'huile, de transfert et de transmission d'énergie. C'est aussi répondre au besoin de parvenir à produire sans polluer, se passer de ressources fossiles et bannir le nucléaire, c'est un moteur qui fonctionne sans carburant, qui est indépendant car une unique batterie suffit pour l'alimenter. Ce moteur est simple à fabriquer, s'adapter à tout ce qui nécessite d'être en mouvement de rotation et d'une force suffisante pour y parvenir et les moyens de ...

Proportioning pump with pneumatic distributor

HYDRAULISCHE STEUERVORRICHTUNG ZUM BEWEGEN EINES ARBEITSKOLBENS, INSBESONDERE FUER EINEN BOHRHAMMER FUER ERD- ODER GESTEINSBOHRUNGEN

Umsteuereinrichtung fuer einen Druckmittel-Schubkolbenmotor

Tiefloch-Schlagbohrhammer

Improvements brought to applications and new combinations of known means allowing to use, with an aim of obtaining industrial results, the natural and particular properties of the liquids, in particular those known in physical sciences under the denomination: hydrostatic or study of the liquids in balance

Fluid motor

A fluid motor including an inner race and an outer race is disclosed. The inner and outer races are configured to rotate about a substantially common axis. The motor also includes at least one fluid actuator configured to produce substantially linear motion as a function of selectively receiving pressurized fluid. The fluid motor also includes at least one sprag configured to rotate the inner and outer races about the axis as a function of the substantially linear motion.

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the "pressure cell") partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Hydraulic apparatus

An hydraulic ram (10) includes at least one end of its cylinder one or more control valves (14a, 15a) which are engaged by the piston (11) at the end of its stroke and arranged to control the supply of hydraulic fluid to the cylinder. In a preferred embodiment of the invention as applied to a double- acting hydraulic ram, control valves (14a, 15a; 14b, 15b) are provided at opposite ends of the cylinder and control the operation of a main changeover valve (16) through an intermediate changeover valve (22). As shown, piston (11) is at the left-hand limit of its travel, depressing valves (14a and 15a) so allowing fluid to flow from source (P) through lines (20 29a and 27) to drive changeover valve (22) to the right. This connects line (25) to the supply (P) and drives the spool of valve (16) also to the right. Consequently compartment A is pressurised through lines (17, 13a) and piston (11) moves to the right, releasing valves (14a, 15a) and eventually depressing valves (14b, 15b), reversing ...

Device for the drive of slowly running waves

THERMAL HYDRAULIC ENGINE

A thermal hydraulic engine (7) including a frame (202). A working fluid changes volume with changes in temperature. A working fluid container (130) houses the working fluid. A cylinder (100) secured to the frame (202) includes an interior space. The cylinder (100) also includes a passage (124) for introducing the working fluid into the interior space. A piston (106) is housed within the interior space of the cylinder (100). The working fluid container (130), the interior surface of the cylinder (100), the piston (106), and the working fluid container (130) defines a closed space filled by the working fluid. The engine (7) also includes means (136) for transmitting heat to and removing heat from the working fluid, thereby alternately causing the working fluid to expand and contract without undergoing a phase change. The piston (106) moves in response to the expansion and contraction of the working fluid.

Hydraulic device, with alternative rectilinear motion, automatically decreasing speed

Electric tree felling head and associated control system for a forestry vehicle

A tree feller-buncher includes a felling head having a saw blade, an engine carried by an undercarriage, a hydraulic system operably connected to the engine, at least one transient operably connected to the hydraulic system, and an electric system operably connected to the engine, the electric system configured to operate the saw blade.

Устройство для подачи рабочей среды в гидравлический двигатель и изменения его рабочего объема

Изобретение относится к устройству для подачи рабочей среды в гидравлический двигатель и изменения его рабочего объема. Устройство содержит первый канал (1), предназначенный для подачи и выпуска рабочей текучей среды к первой стороне гидравлического двигателя (М), второй канал (2), предназначенный для подачи и выпуска рабочей текучей среды ко второй стороне двигателя (М), исполнительный элемент (3), предназначенный для изменения рабочего объема двигателя (М), канал (31), выполненный с обеспечением возможности увеличения рабочего объема двигателя (М) и соединенный с элементом (3) для подачи рабочей текучей среды к стороне элемента (3), обеспечивающей увеличение рабочего объема двигателя (М), и канал (32), выполненный с обеспечением возможности уменьшения рабочего объема двигателя (М) и соединенный с элементом (3) для подачи рабочей текучей среды к стороне элемента (3), обеспечивающей уменьшение рабочего объема двигателя (М). Устройство обеспечивает возможность подачи рабочей среды в каналы ...

ГИДРОДВИГАТЕЛЬ

FIELD: hydro automatics. SUBSTANCE: invention relates to the hydro automatics devices operating due to the water flow energy, and can be used in hydraulic systems with the rod reciprocating movement, in particular, in agriculture for the agricultural crops irrigation mechanization with the help of irrigation units, which working body moves across the field through the winding device drive, carrying out the watering. Hydraulic motor includes the double-acting hydraulic cylinder with a rod, a valve with hydraulic actuator and installed on the discharge pipe hydraulic bypass channel with ejector, and distributor, kinematically connected to the hydraulic cylinder rod through the switch and hydraulically to the pressure pipe, the hydraulic cylinder under piston cavity and the valve hydraulic actuator working cavity. Valve is equipped with the regulating bolt, and its working cavity is connected to the distributor and the hydraulic cylinder above piston cavity. By means of the distributor, the hydraulic cylinder under piston and the above piston cavities have the possibility of alternate connection to the ejector and the discharge pipe before the valve. EFFECT: application in different sectors of the national economy will significantly increase the hydraulically controlled systems reliability and efficiency. 1 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 674 110 C1 (51) МПК F03C 1/00 (2006.01) A01G 25/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F03C 1/00 (2018.08); A01G 25/00 (2018.08) (21)(22) Заявка: 2017141457, 29.11.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 04.12.2018 (45) Опубликовано: 04.12.2018 Бюл. № 34 2 6 7 4 1 1 0 R U (56) Список документов, цитированных в отчете о поиске: RU 2330177 C1, 27.07.2008. SU 1535472 A1, 15.01.1990. SU 1806557 A1, 07.04.1993. SU 1757535 A1, 30.08.1992. SU 1722308 A1, 30.03.1992. US 4309874 A1, 12.01.1982. US 4240584 A1, 23.12.1980. ( ...

Устройство для подачи рабочей среды в рабочий объем цилиндра гидравлического двигателя и изменения указанного объема

Wassersaeulenmaschine oder Pumpe mit zwei einander gegenueberliegenden Zylindern

DURCH STROEMUNGSMITTELDRUCK BETAETIGTER, HIN- UND HERGEHENDER MOTOR

IMPROVEMENTS RELATING TO FLUID-POWERED PISTON AND CYLINDER UNITS

... 1,243,082. Hydraulic actuators. WEBLEY & SCOTT Ltd. Dec.5, 1968 [Oct. 1, 1968], No.46454/68. Heading F1P. [Also in Division B8] A hydraulic fluid powered piston and cylinder unit is provided with an annular groove 13 in the cylinder 11 accommodating a spring metal piston ring 20 of rectangular cross-section and having a split 29, which urges itself inwardly against the piston 21 to enter an annular recess 22 in the piston when this comes in register with the groove 13, the piston having a shoulder (e.g. the lower radial face of the recess 22) to engage the piston ring and thereby positively limit the piston stroke in one direction. The piston may have a diametral bore 30 housing a bar 31 having piston-ring engaging recesses 33 and connected to a valve 40 so as to relieve the pressure on the undersurface 23 of the piston at the end of the stroke, fluid escaping via the bore 30, the split 29 and at least one bore 14 in the cylinder wall covered by an elastic garter seal 17. The piston and ...

SLEEVE PISTON FLUID MOTOR

The present invention is a cylindrical linear fluid motor (10) comprising a plurality of reciprocating rotary piston sleeve (42) intermediate an inner coaxial hollow drive shaft (20) and an outer cylindrical housing (30). Rotating disc valves (71) at both ends of the sleeve piston (42) control the sequential flow of high-pressure and low-pressure fluid through ports in both the drive shaft (20) and housing (30). High-pressure fluid acts on one end of the sleeve piston causing the piston to travel laterally along the drive shaft, with an inner set of roller balls (25) in linear raceways (24,46) ensuring no rotation between each piston and the drive shaft. The linear motion simultaneously affects exhausting of low-pressure fluid at the other end of the piston. Outer balls (50) are seated in the housing and a sinusoidal circumferential raceway (48) of each piston, to affect rotation in the piston from the lateral motion. As a piston reaches the limit of its linear travel the rotating disc ...

CONTROL SYSTEM FOR A WORK MACHINE AND METHOD FOR CONTROLLING A HYDRAULIC CYLINDER

The invention relates to a control system for a work machine (101) , which system comprises an electric machine (202) , a hydraulic machine (204) and at least one hydraulic cylinder (108) . The electric machine (202) is connected in a driving manner to the hydraulic machine (204) . The hydraulic machine (204) is connected to a piston side (208) of the hydraulic cylinder (108) via a first line (210) and a piston-rod side (212) of the hydraulic cylinder (108) via a second line (214) . The hydraulic machine (204) is adapted to be driven by the electric machine (202) and supply the hydraulic cylinder (108) with pressurized hydraulic fluid from a tank (216) in a first operating state and to be driven by a hydraulic fluid flow from the hydraulic cylinder (108) and drive the electric machine in a second operating state.

ARTICLE AND METHOD OF LIFT ENERGY GENERATED BY ELECTROLYSIS AT SUBSTANTIAL DEPTH

Methods, apparatus systems which utilize gas-lift pumping in producing mechanical and/or electric power. A system and method for generating energy from electrolysis performed at a substantial depth inc includes generating gas by an electrolysis process at a substantial depth from a surface of a body of liquid. The system also includes capturing the generated gas in a containment chamber and generating mechanical energy as a function of a rising of the containment chamber with the captured gas. In another embodiment, the system and method include generating gas by an electrolysis process at a substantial depth from a surface and providing a working liquid from the surface to the electrolysis process at the substantial depth. The system and method further include capturing the generated gas in a containment tube and generating mechanical energy as a function of the captured gas.

Электрогидравлический двигатель

Изобретение относится к машиностроению, в частности к электрогидравлическим двигателям. Электрогидравлический двигатель содержит корпус с установленными внутри него концентрично ротором 2 и поршнями-обхватами 1, по обеим сторонам ротора 2, сопряженным с металлическими шариками ротора 2, торцевые крышки 3. Двигатель снабжен формирователем импульсов высокого давления, содержащим взрывную камеру с электродами. Корпус выполнен в виде гидроцилиндров. Формирователь выполнен в виде цилиндра. Взрывная камера содержит конический пояс, ограниченный с двух сторон поршнями-обхватами 1, имеющими сферические углубления со стороны взрывной камеры и фаски на своей боковой поверхности для уплотнительных колец. Гидроцилиндр снабжён боковыми крышками и опорными втулками с подшипниками для вала ротора 2 гидроцилиндра, на котором размещён ротор 2. В сферических каналах ротора 2 размещены шарики. Формирователь и гидроцилиндр соединены между собой шлангами высокого давления. Изобретение направлено на повышение ...

Geared motor

A drive assembly is proposed which essentially consists of a gearing and a lifting unit. Working cylinders or even electromagnets can be used as the lifting unit. Depending on the type of construction or mode of operation, the working cylinders or electromagnets produce an oscillating translatory or rotary movement which is transmitted to the gearing. The gearing converts this movement into a continuous rotary movement of a working shaft. Compared with known motors, for example pneumatic lamellar motors or hydraulic wobble-plate motors, the geared motors according to the invention are distinguished by lower power losses, the lifting unit can operate free of oil, and they produce high torques at low speeds and with low operating noise so that a very compact type of construction becomes possible in a hydraulic drive. Depending on the motor size, compressed air from cylinders can be used as drive medium under site conditions.

Vorrichtung zum Antreiben eines Zylinders mithilfe von Luftdruck

Es ist eine Aufgabe der vorliegenden Erfindung, drängende globale Probleme im direkten Zusammenhang mit dem Menschenrecht auf Leben zu lösen, wie z. B. die Energiekrise, die Wirtschaftskrise und die Umweltverschmutzung, die nicht länger ignoriert werden können, um die Bedürfnisse der Zeit zu erfüllen. Außerdem ist es eine Aufgabe der vorliegenden Erfindung, die Abhängigkeit von fossilen Energieträgern, die im direkten Zusammenhang mit der globalen Erwärmung stehen, wesentlich zu reduzieren. Daher stellt die vorliegende Erfindung eine Vorrichtung zum Antreiben von Zylindern mithilfe von Luftdruck mit maximierter Energie bereit, die dadurch gekennzeichnet ist, dass der Verbrauch an fossilen Energieträgern reduziert und stattdessen die Nutzung sauberer Energie ermöglicht wird. Die vorliegende Erfindung betrifft eine Vorrichtung zum Antreiben von Zylindern mithilfe von Luftdruck, wobei mehrere flexible Rohre, die mit einer Kurbelwelle verbunden sind und mit Druckluft gefüllt sind, sich durch ...

Fully rotary-pressure force-motor has three vital inner chambers that are filled with liquid, where two triangular chambers are provided for rotational force-generation

The fully rotary-pressure force-motor has three vital inner chambers that are filled with liquid, where two triangular chambers are provided for the rotational force-generation. A post chamber is provided for the volume-compensation. The control of the rotation force moments takes place by a lever support-system with active connections in liquid over or under the pressure.

Hydrostatic drive for construction machine has suction pump to remove leakage oil from motor to tank via oil cooler

The hydrostatic drive for a construction machine has a hydraulic pump (1) and a hydraulic motor (3,4) in a circuit. The hydraulic motor has an air inlet opening and a hydraulic suction pump (5) for aspiration of leakage oil from the motor. An oil cooler (8) is positioned in the line between the suction pump and the tank (11).

HYDRAULIC APPARATUS

ELECTRIC TREE FELLING HEAD AND ASSOCIATED CONTROL SYSTEM FOR A FORESTRY VEHICLE

A tree feller-buncher includes a felling head having a saw blade, an engine carried by an undercarriage, a hydraulic system operably connected to the engine, at least one transient operably connected to the hydraulic system, and an electric system operably connected to the engine, the electric system configured to operate the saw blade.

Hydraulic engine

MEANS AT PRESSURE FLUID CYLINDERS

Cylinder driving apparatus using air pressure

COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when acting as a compressor) and converts the energy stored in compressed air to mechanical power (when acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the pressure cell) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Engine

Manufactoring process of cast iron cylinders

HYDRAULIC CIRCUIT FOR VARIABLE DISPLACEMENT MOTOR

NEW HYDROELECTRIC INSTALLATION USING A HYDRAULIC CYLINDER FOR HARNESSING SMALL WATER COURSES

The present invention consists of harnessing the energy available in the water stored in a tank at a height of at least 5 metres by means of installation of various vertical pipes which include at their lower end a 180º bend, at the free end of which a hydraulic cylinder is located. The fall of water generates displacement in the pistons which exist in each of the cylinders, which, at the starting point, gives rise to vertical movement which displaces the piston to the upper part, and simultaneously raises the linear generator TRANSLATOR shaft base. In order to repeat the cycle, the automatic discharge valve is opened, which releases the water from the cylinder, and the piston returns to its initial position, thus displacing the TRANSLATOR shaft downwards. Alternatively, it is possible to connect to the hydraulic cylinders a crankshaft which is connected to a shaft coupled with an alternator, for the purpose of maintaining operation with constant revolutions.

Braking system for a hydraulic machine

A hydraulic apparatus comprising a casing (1) having arranged therein a hydraulic machine (2), a shaft (4) mounted to rotate relative to the casing (1) by means of a bearing (5), a braking system (3) having a plurality of brake disks (31, 34) configured to prevent the shaft (4) rotating relative to the casing (1) in selective manner, and a control system (6, 7) for controlling said braking disks (31, 34), the hydraulic system including an irrigation system adapted to cool said brake disks (31, 34) by means of a fluid, the irrigation system including a fluid inlet (81) and a fluid outlet (82), the hydraulic system being characterized in that the fluid inlet and outlet (81, 82) of the irrigation system define a fluid flow within the casing in which the braking system (3) is downstream from the hydraulic machine (2).

THERMAL HYDRAULIC ENGINE

A thermal hydraulic engine (7) including a frame (202). A working fluid changes volume with changes in temperature. A working fluid container (130) houses the working fluid. A cylinder (100) secured to the frame (202) includes an interior space. The cylinder (100) also includes a passage (124) for introducing the working fluid into the interior space. A piston (106) is housed within the interior space of the cylinder (100). The working fluid container (130), the interior surface of the cylinder (100), the piston (106), and the working fluid container (130) defines a closed space filled by the working fluid. The engine (7) also includes means (136) for transmitting heat to and removing heat from the working fluid, thereby alternately causing the working fluid to expand and contract without undergoing a phase change. The piston (106) moves in response to the expansion and contraction of the working fluid.

PRESSURE FLUID CONTROLLED RECIPROCATING MECHANISM

... 1334837 Hydraulic reciprocating motors R M DENSMORE 12 July 1972 32632/72 Heading F1A A fluid motor, e.g. for an impact tool or pump device, comprises a reciprocable working member C and a reciprocable sleeve valve E in a housing B, high pressure fluid e.g. oil, being supplied to connection 24, and a predetermined bank-pressure, lower than said high pressure, being maintained at connection 26 by an accumulator and regulating valve, Fig. 7 (not shown), and the member C being biased to the left by gas pressure stored in chamber 44, or a spring or weight. In operation, with member C and sleeve E in their left-hand positions in which flange G of member C sealingly engages seat F of sleeve E, Fig. 6 (not shown), high pressure from connection 24 acts on area A1 of flange G to move member C and sleeve E to the right against the pressure in chamber 44 acting on surfaces 50 and 48 of member C and the pressure in connection 26 acting on surface 72a of sleeve E, which maintains sealing contact between ...

Thermal hydraulic engine

Engine Using Compressed Air

PISTON AND CYLINDER UNIT HAVING STROKE LIMITING MEANS

ELECTROSTATIC CHUCK AND HYDRAULIC MACHINE

Système hydraulique comprenant un carter (1) dans lequel sont disposés une machine hydraulique (2), un arbre (4) monté en rotation relative par rapport au carter (1) au moyen d'un palier (5), un système de freinage (3) comprenant une pluralité de disques de freinage (31, 34) configurés pour sélectivement immobiliser en rotation l'arbre (4) par rapport au carter (1) et un système de pilotage (6, 7) desdits disques de freinage (31, 34), le système hydraulique comprenant un système d'irrigation adapté pour refroidir lesdits disques de freinage (31,34) au moyen d'un fluide, le système d'irrigation comprenant une admission (81) et un refoulement (82) de fluide, caractérisé en ce que l'admission (81) et le refoulement (82) de fluide du système d'irrigation définissent un écoulement de fluide au sein du carter dans lequel le système de freinage (3) est en aval de la machine hydraulique (2).

VARIABLE STROKE CYLINDER

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the "pressure cell") partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

UMSCHALTVENTIL ZUR STEUERUNG EINER DOPPELT WIRKENDEN ZYLINDERKOLBENEINHEIT

PUMP FOR METERING PREDETERMINDED QUANTITIES OF LIQUID

... 1425046 Pumps COMMISSARIAT A L'ENFRGIE ATOMIQUE 17 May 1973 [2 June 1972] 23617/73 Heading F1A A pump for metering predetermined quantities of liquid comprises a pump chamber 1 in which a plunger 2 is movable, the plunger being rigidly attached to the piston 3 of a pneumatic actuator having a stop rod 9 controlled by knob 10 which determines the stroke of the piston and plunger and thus determines said predetermined quantity. A spool valve 35 is connectable to two sources of compressed air 13, 14. When connected to source 13, the spool assumes its right-hand position as shown and gas is passed to chamber 7 of actuator cylinder 4 via passage 20 to raise piston 3, withdraw plunger 2 from chamber 1 and thus draw a predetermined quantity of liquid from storage tank 18 into chamber 1 via passages 26, 31 and groove 16 in the valve spool, gas being thrust out of chamber 8 of the actuator via passages 22, 23 and 25, and groove 15 to atmosphere. When connected to source 14, the spool assumes its ...

Improvements in or relating to hydraulic or other engines

... 207,648. Scott, A. Sept. 16, 1922. Combined fluid-actuated and mechanical gears; releasing-gears.-Driving-gear for an hydraulic or other motor comprises a frame fixed to the piston rod and formed with racks 4, Fig. 2, meshing with pinions 5 on a shaft 6 mounted in slotted bearings 10, so that the shaft is moved to bring a pinion 7 alternately into gear with pinions 8, 9 on shafts 11, 12. At each end of the motor cylinder are inlet and exhaust valves 22, 23, Fig. 4, carried by a, rocker 24 operated through a lever 26 from a slotted member 28 on the rack to open the exhaust valve and permit the inlet valve to be closed by the fluid pressure, the lever being locked in the position shown by a latch 31. At the end of the return stroke, a pin 33 disengages the latch 31. and a spring returns the valves.

HYDRAULIC OSCILLATOR

SLEEVE PISTON FLUID MOTOR

The present invention is a cylindrical linear fluid motor (10) comprising a plurality of reciprocating rotary piston sleeve (42) intermediate an inner coaxial hollow drive shaft (20) and an outer cylindrical housing (30). Rotating disc valves (71) at both ends of the sleeve piston (42) control the sequential flow of high-pressure and low-pressure fluid through ports in both the drive shaft (20) and housing (30). High-pressure fluid acts on one end of the sleeve piston causing the piston to travel laterally along the drive shaft, with an inner set of roller balls (25) in linear raceways (24,46) ensuring no rotation between each piston and the drive shaft. The linear motion simultaneously affects exhausting of low-pressure fluid at the other end of the piston. Outer balls (50) are seated in the housing and a sinusoidal circumferential raceway (48) of each piston, to affect rotation in the piston from the lateral motion. As a piston reaches the limit of its linear travel the rotating disc ...

hYDRAULICALLY RUN ON TOWARDS-AND mOVE-CASH INSTITUTIONS, ESPECIALLY ON wINDSHIELD WIPER

Delivery for internal water column

THERMAL HYDRAULIC ENGINE

A thermal hydraulic engine (7) including a frame (202). A working fluid changes volume with changes in temperature. A working fluid container (130) houses the working fluid. A cylinder (100) secured to the frame (202) includes an interior space. The cylinder (100) also includes a passage (124) for introducing the working fluid into the interior space. A piston (106) is housed within the interior space of the cylinder (100). The working fluid container (130), the interior surface of the cylinder (100), the piston (106), and the working fluid container (130) defines a closed space filled by the working fluid. The engine (7) also includes means (136) for transmitting heat to and removing heat from the working fluid, thereby alternately causing the working fluid to expand and contract without undergoing a phase change. The piston (106) moves in response to the expansion and contraction of the working fluid.

ENGINE USING COMPRESSED AIR

An engine (32) drive by compressed air, including an electric motor (36) driven by a battery (B), means (38) for generating the compressed air by use of a driven power of the electric motor (36), an intake manifold (40) connected with an outlet of the means (38), a cylinder block (32) including a plurality of cylinders communicating with the intake manifold (40), a crank shaft connected to a piston in the cylinder by a connecting rod, and a cam shaft connected with the crank shaft by means of the belt or chain.

HYDRAULIC OSCILLATOR

ELECTROSTATIC CHUCK AND HYDRAULIC MACHINE

Engine with pressure

METHOD OF SIZING THE DEFINITION OF HYDRAULIC MACHINES HAVING HIGH ENERGY LEVEL RANGES OF THE SHAFT AND CASING

Procédé de dimensionnement de machines hydrauliques comportant un arbre tournant et un carter extérieur, caractérisé en ce qu'à partir du calcul du premier mode de flexion de l'arbre (Fa), il définit des coefficients de marge (X%, -X%) proportionnels à la fréquence de ce premier mode d'arbre (Fa) correspondant à des plages de niveau énergétique élevé, et des coefficients de marge (Y%, -Y%) proportionnels pour les premiers modes propres du carter (Fc) correspondant à des plages de niveau énergétique élevé, afin d'obtenir en évitant un recouvrement de ces plages, les fréquences possibles dans lesquels doivent préférentiellement se positionner les premiers modes propres du carter (Fc). A method of dimensioning hydraulic machines comprising a rotating shaft and an outer casing, characterized in that from the calculation of the first bending mode of the shaft (Fa), it defines margin coefficients (X%, -X% ) proportional to the frequency of this first shaft mode (Fa) corresponding to high energy level ranges, and margin coefficients (Y%, -Y%) proportional to the first eigenmodes of the housing (Fc) corresponding to ranges of high energy level, to obtain by avoiding recovery of these ranges, the possible frequencies in which should preferably be positioned the first eigenmodes of the housing (Fc).

SLEEVE PISTON FLUID MOTOR

The present invention is a cylindrical linear fluid motor (10) comprising a plurality of reciprocating rotary piston sleeve (42) intermediate an inner coaxial hollow drive shaft (20) and an outer cylindrical housing (30). Rotating disc valves (71) at both ends of the sleeve piston (42) control the sequential flow of high-pressure and low-pressure fluid through ports in both the drive shaft (20) and housing (30). High-pressure fluid acts on one end of the sleeve piston causing the piston to travel laterally along the drive shaft, with an inner set of roller balls (25) in linear raceways (24,46) ensuring no rotation between each piston and the drive shaft. The linear motion simultaneously affects exhausting of low-pressure fluid at the other end of the piston. Outer balls (50) are seated in the housing and a sinusoidal circumferential raceway (48) of each piston, to affect rotation in the piston from the lateral motion. As a piston reaches the limit of its linear travel the rotating disc ...

VARIABLE STROKE CYLINDER

In a variable stroke cylinder having a pair of pistons in which the distance between the pistons is selectively variable for selectively varying the stroke of the cylinder, a vent communicates with the space between the pistons for venting the space when the distance between the pistons is being varied.

Control system for a work machine and method for controlling a hydraulic cylinder

A control system for a work machine is provided, which system includes an electric machine, a hydraulic machine and at least one hydraulic cylinder. The electric machine is connected in a driving manner to the hydraulic machine. The hydraulic machine is connected to a piston side of the hydraulic cylinder via a first line and a piston-rod side of the hydraulic cylinder via a second line. The hydraulic machine is adapted to be driven by the electric machine and supply the hydraulic cylinder with pressurized hydraulic fluid from a tank in a first operating state and to be driven by a hydraulic fluid flow from the hydraulic cylinder and drive the electric machine in a second operating state.

Hydraulischer Doppelkolbenmotor

HYDRAULIC APPARATUS

FLUID OPERATED OSCILLATORS

... 1328795 Excavators BTR INDUSTRIES Divided out of 1328794 Heading E1F [Also Ltd 11 Aug 1970 [18 June 1969] 57342/72 in Division F1] Apparatus operable by fluid pressure to produce a reciprocating output includes two valves each having a part connected to a valve-operating means bf the other valve, so that the valves reciprocate in sequence when pressurised to reciprocate members controlled by one of the valves. The members may be pistons of hydraulic rams operable to oscillate excavating teeth of an excavator. As shown, hydraulic fluid fed from excavator pump 52 to reciprocate spool valves 60, 61 flows via lines 62, 65, 66 to maintain valve 60 in position. Simultaneously, fluid flows via lines 62, 63 to move valve 61 to its third (uppermost) position against the bias of spring 73, and fluid then flows via lines 65, 67 to move valve 60 against the bias of spring 72 to its second (lowermost) position. When the movement is completed, fluid flows via lines 62, 69 to move valve 61 to its first ...

Wave energy isolation device and wave energy conversion equipment using the same

Kolbenmaschine mit koaxialen Zylindern, Kolben und koaxialer Welle

Cylinder driving apparatus using air pressure

It is an aim of the present invention to overcome urgent and pressing global troubles directly associated with the human right to live, such as the energy crisis, the economic crisis, and environmental pollution and the like which cannot be delayed or neglected any longer in order to meet the needs of the times. Further, it is an aim of the present invention to significantly reduce the dependency on a variety of fossil fuels directly associated with global warming. Therefore, the present invention provides a cylinder driving apparatus using air pressure, with maximized energy efficiency, characterized in that the use of fossil fuel energy is reduced and the use of clean energy is proposed. The present invention relates to a cylinder driving apparatus in which a plurality of flexible tubes connected to a crankshaft are filled with high-pressure air, alternately expand by expansion energy, and are elevated to operate and rotate the crankshaft. Further, the present invention relates to an ...

Drilling Device

... 1,166,884. Percussive drills. PAN AMERICAN PETROLEUM CORP. 6 Oct., 1967 [24 Oct., 1966], No. 45945/67. Heading B4C. [Also in Division E1] A percussion motor mounted in the pipe string of an earth or rock drill has an anvil 26 fixed to the drill bit and a hammer 14 reciprocated by fluid pressure in the pipe bore 40. The hammer and anvil have opposed valve seats 24, 25 between which reciprocates a valve 20 fixed to a piston 19 in a tube 17. The top of the piston is exposed to a relatively low pressure, for example as shown by connection 18 to the well bore annulus, or (Fig. 11, not shown) by a bore in the piston-rod 21 to the space 27. The space below the piston is exposed to the pressure in the bore 40. In the position shown, the hammer is rising because of the pressure differential between the lower face 30, exposed to pipe pressure and the annular upper face exposed to well annulus pressure through ports 12. When a valve element 32 on the hammer engages the tube 17 the pressure differential ...

ARTICLE AND METHOD OF LIFT ENERGY GENERATED BY ELECTROLYSIS AT SUBSTANTIAL DEPTH

Method for controlling a hydraulic cylinder and control system for a work machine

ENERGY CHAIN

A system for producing drive energy includes a control unit, and an intensifier that receives water from a water source and oil from an oil source, pressurizes the oil, and transfers pressurized oil. The system also includes a compression cylinder that receives oil from the oil source and the pressurized oil from the intensifier so that oil collected in the compression cylinder is pressurized to a predetermined pressure, and that transfers the oil at the predetermined pressure. A control valve is provided for controlling the oil to be received by the compression cylinder from the oil source and for controlling the oil transferred at the predetermined pressure. The system includes a hydraulic motor that receives the oil transferred at the predetermined pressure, and utilizes the predetermined pressure to drive the hydraulic motor. The hydraulic motor turns a generator so that the generator produces energy without the expenditure of fossil fuel.

DRUCKLUFTMASCHINE

Selbsttaetige Wasserabsperrvorrichtung fuer Wassersaeulenmaschinen

PISTON-CHAMBER HYDRO-GRAVITY ENGINE

A piston-chamber hydro-gravity engine capable of converting the stagnant volume of the liquid matter of sea, lake, pond or artificially made hydro container, to a moving volume of liquid matter that flows back upon itself and in meanwhile exploits this motion as a working agent to produce mechanical kinetic power, capable of being used for mechanical production of kinetic work for hydro-electricity generation, or to be used multi-purposely for other energy needs that demand mechanical kinetic force sufficient to solve energy production problems worldwide forever beneficial to the economy and, friendly to the environment, consisting of particular accessories of mechanisms embodied in a single system of mutual successive co-operation by exploiting gravity, that is the hydro-container (), capable of creating the means of exploiting the gravity-hydro-static tension of squashing compression exist within the volume of liquid matter of the sea, lake, pond or artificially made containers, the cylinder-chamber () and piston-chamber () these convert the stagnant gravity-hydro-static tension of force into a fluctuating homo-acting and counter-acting to gravity hydro-gravity-moving-force of action, that compels the piston-chamber () to reciprocate, the hermetically sealed vessel crank-cam-shaft chamber () operating as a participator in creating the means of the system piston-chamber hydro-gravity engine's function and meanwhile participating in the embodiment system that converts the reciprocating motion of piston-chamber (), to a rotating motion capable of being used multi-purposely, where for the piston-chamber hydro-gravity engine to function it is necessary for the hydro-gravity force of action of conduits () to be less than the hydro-gravity force of action of piston-chamber (), the area where conduits () adjusted hermetically fixed at the trunk of the cylinder-chamber () to be under the B.D.C. of piston-chamber ( Reciprocating motion, the diameter of crank () to be ...

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Hydraulic motor capable of many different applications able to use low-pressure or high-pressure fluids to operate

A hydraulic motor able to use low-pressure or high-pressure fluids such as water for a large number of applications. The motor uses a flow of water that is controlled and directed through a system of supply tubes to a chamber that fills with the fluid, moving a piston that produces an action such as rotating a shaft to turn a brush. Fluid fills the chamber through a system of opening and closing valves that direct and control the flow of the fluid so that the piston exerts pressure against a spring until it reaches a maximum position. A system of valves then reverses the flow of fluid until the piston is pushed in the opposite direction, producing an action such as turning a brush through the alternating application of water flows. A one-way gear box may be used to control the action of a shaft, which may be directed to turn in the same direction or in alternating directions to accomplish a wide variety of applications such as an hydraulic brush, gearbox speed increaser, generator or washing machine.

HYDRAULIC MOTOR

A hydraulic motor includes a motor mechanism that rotates by hydraulic liquid pressure led from a hydraulic liquid pressure source. The hydraulic motor includes a casing that defines a casing chamber which accommodates the motor mechanism, a brake mechanism that brakes the rotation of the motor mechanism, a brake release actuator that releases the braking of the brake mechanism by a brake release pressure led from the hydraulic liquid pressure source, and a throttle passage that is in communication with the casing chamber and extracts a portion of hydraulic liquid that is led into the brake release actuator and leads it to the casing chamber. 1. A hydraulic motor equipped with a motor mechanism that is configured to rotate by hydraulic liquid pressure led from a hydraulic liquid pressure source , comprising:a casing that defines a casing chamber which accommodates the motor mechanism,a brake mechanism that is configured to brake the rotation of the motor mechanism,a brake release actuator that is configured to release the braking of the brake mechanism by a brake release pressure led from the hydraulic liquid pressure source,and a throttle passage that is in communication with the casing chamber and extracts a portion of hydraulic liquid that is led into the brake release actuator and leads it to the casing chamber.2. The hydraulic motor according to claim 1 , wherein the motor mechanism includes:a swash plate provided in the casing chamber,a plurality of pistons that are configured to move back and forth following the swash plate by hydraulic liquid pressure,a cylinder block that is configured to rotate relative to the swash plate by the back-and-forth motion of the pistons, andan output shaft that is configured to output the rotation of the cylinder block,wherein the brake mechanism includes:a brake disc that is configured to rotate together with the cylinder block,a friction plate that is attached to the casing, anda brake spring that is configured to compress ...

Rescue system from high rise apartments with automatic hydro mechanic control and without electricity

There is a pressing problem in the design of high-rise apartments and towers during the occurrence of the events like explosion, fire, earthquake since the inhabitants are not able to get out of the building and they get trapped in the dangerous situations. Currently all around the world, there are some systems but they have not met the urgent requirements and we annually witness lots of death tolls caused by fire and explosion. In order to remove the above-mentioned deficiencies, a new system has been designed which creates the possibility of transferring people from heights to the downside of the apartment in emergency conditions without requiring any energy. The device works by converting the potential gravitational power of weight into kinetic and heat energy. This operation is done by controlling and converting the function of a variable and invariable hydraulic pump or hydro motor which is connected to two grooves spool and the pump outlet is controlled by a control valve and centrifugal governor. The control operation causes the spool steel wire to be slowly opened. Consequently the person descends. This system works like a hydrodynamic damper.

HYDRAULIC APPARATUS HAVING AN ADDITIONAL THRUST SECTION

The invention relates to a valve assembly () of a radial piston hydraulic apparatus (). Said apparatus includes a cylinder block () insertable onto a shaft () by translation. Said assembly () includes: a valve () in contact with said cylinder block (); a valve train cover (); and a first () and second () chamber that are defined, respectively, by a first () and second () space that are located at the interface between said valve () and said valve train cover (), and are intended for the pressurized fluids that enable the conversion of pressure and/or mechanical stress. Said assembly () includes an additional section () defined by a third space () located at the interface between said valve () and said valve train cover (). Said section () is intended for receiving a pressurized fluid such as to enable the cylinder block (4) to be inserted onto the shaft (2). 2. The distribution assembly according to claim 1 , wherein the additional section is entirely or partly located radially outside the first and second chambers claim 1 , so that the surface of said additional section is greater.3. The distribution assembly according to claim 1 , wherein the supplying of the additional section is accomplished by selection of the lowest pressure between the two pressure relating to the first and second chambers.4. The distribution assembly according to claim 3 , wherein the distribution assembly comprises a low-pressure selector with an open center adapted to carry out the selection of the lowest pressure between the two pressures relating to the first and second chambers.5. The distribution assembly according to claim 1 , wherein the additional section is not radially rectilinear claim 1 , but is typically S or Z-shaped claim 1 , so as to optimize the volume and the sealing.6. A hydraulic device including a casing claim 1 , a cylinder block and a shaft to which the cylinder block is adapted to engage by longitudinal translation claim 1 , characterized in that it further comprises ...

Fluid working machine and method of operating a fluid working machine

A fluid working machine of the type comprising working chambers of cyclically varying volume and low and high pressure valves to regulate the flow of working fluid into and out of the working chamber, from low and high pressure manifolds, in which the valves are electronically controlled on each cycle of working chamber volume, by way of valve actuation signals, to determine the net displacement of working chambers. Additional valve actuator signals are generated in response to determination that a valve or working chamber has been inactive to adapt the valve to operate more reliably when subsequently actuated, but without significantly altering the net displacement of working chambers. 1. A method of operating a fluid working machine , the machine comprising a rotatable shaft and a plurality of working chambers having working volumes which vary cyclically with rotation of the rotatable shaft ,each working chamber having a low pressure valve which regulates the flow of working fluid between the working chamber and a low pressure manifold and a high pressure valve which regulates the flow of working fluid between the working chamber and a high pressure manifold, each low pressure valve being an electronically controlled valve having a valve actuator,the method comprising transmitting primary actuation signals to the actuators, in phased relationship to cycles of working chamber volume, to thereby actively control the said electronically controlled valves and so determine the net displacement of each working chamber on each cycle of working chamber volume, and selecting the net displacement of a group of one or more of the working chambers to follow a target,and further determining whether a valve inactivity test is met in respect of a said low pressure valve of a said working chamber and, responsive to said determination, transmitting one or more additional actuator signals to the actuator of the said low pressure valve, which additional actuator signals do not ...

Dynaco Stepper Pump Hydraulic System

A hydraulic linear actuator system known as the “Dynaco Stepper Pump Hydraulics System” is which is an electrically driven hydraulic pump system made of durable materials for use in an electronically controllable hydraulic system comprised of: (a) an electrically driven stepper motor; (b) a hydraulic pump to pressurize a hydraulic fluid; (c) a means to connect the stepper motor to the hydraulic pump; (d) a pressurized reservoir for a quantity of hydraulic fluid; (e) a means to supply pressurized fluid to a hydraulic actuator; (f) the hydraulic actuator with a means to provide linear motion to an object; (g) the means to provide linear motion to an object; (h) a means to return lowered pressurized fluid to the reservoir. An alternative embodiment is further comprised of a controller with a series of feedback signals.

FIBER-REINFORCED ACTUATOR

A fiber reinforced actuator includes first and second sets of fibers coupled with and arranged along a control volume to controllably constrain mobility of an actuator body. Fibers of the first set can be arranged with respect to fibers of the second set and with respect to a central axis to impart the actuator with various combinations of torsional and axial force responses. A third fiber may be included to form a helical actuator. A plurality of actuators can be coupled together for coordinated movement, thereby providing additional mobility directions, such as trans-actuator bending. The fiber-reinforced actuators and actuator assemblies are potential low cost, low energy consumption, lightweight, and simple replacements for existing motion devices such as servo-motor driven robots. 1. A fiber-reinforced actuator , comprising:a body and an associated control volume, the body extending for a length along a central axis of the control volume;a first set of fibers coupled with the body, the fibers of the first set extending about the control volume and/or along the length of the body at an angle α relative to the central axis; anda second set of fibers coupled with the body, the fibers of the second set extending about the control volume and/or along the length of the body at an angle β relative to the central axis;wherein a≠±β, and the orientation of the fibers of the first and second sets of fibers meets one of the following criteria:−90°>α>90° and −90°>β>90°; orα=90° and β≠0.2. A fiber-reinforced actuator as defined in claim 1 , wherein α≠0 and β≠0.3. A fiber-reinforced actuator as defined in claim 1 , wherein α≠90° and β≠90°.8. A fiber-reinforced actuator as defined in claim 1 , wherein the body comprises an elastomeric tube.9. A fiber-reinforced actuator as defined in claim 1 , wherein the central axis is non-linear when the actuator is in a free state.10. A fiber-reinforced actuator as defined in claim 1 , wherein the fibers of the first and second sets of ...

SERVOLESS MOTOR

A hydraulic piston unit including a rotational group for driving or being driven by a driving shaft, and having a tiltable displacement element for adjusting the displacement volume of the rotational group between a minimum or a maximum displacement, wherein, on t valve segment between a kidney-shaped inlet port and a kidney-shaped outlet port at respective dead end positions of reciprocally moveable working pistons first and second control ports are located in fluid connection with cylinder bores in the cylinder block, for controlling the position of the displacement element. The hydraulic piston unit further includes a control valve with a shiftable control valve spool fluidly connected via a high pressure port to a high pressure side of the hydraulic piston unit. The control valve spool is configured to conduct hydraulic fluid from the high pressure side to one of the first or the second control port. 1. A Hydraulic piston unit comprising:a rotational group for driving or being driven by a driving shaft, the rotational group comprising a cylinder block with cylinder bores and pistons mounted to be reciprocally moveable in the cylinder bores for conveying hydraulic fluid from a kidney-shaped inlet port to a kidney-shaped outlet port of a valve segment,a displacement element being tiltable with respect to a rotational axis of the driving shaft between a first end position and a second end position for adjusting a displacement volume of the rotational group between a minimum or a maximum displacement,wherein, on the valve segment between the inlet port and the outlet port at respective dead end positions of the reciprocally moveable working pistons, a first control port and a second control port are located in fluid connection with the cylinder bores for controlling the position of the displacement element, andwherein the hydraulic piston unit further comprises a control valve with a shiftable control valve spool, fluidly connected via a high pressure port to the ...

Electric tree felling head and associated control system for a forestry vehicle

A tree feller-buncher includes a felling head having a saw blade, an engine carried by an undercarriage, a hydraulic system operably connected to the engine, at least one transient operably connected to the hydraulic system, and an electric system operably connected to the engine, the electric system configured to operate the saw blade.

Hydrostatic Power Unit

A hydrostatic power unit () comprises a variable displacement machine with a continuously variable displacement volume and is operated as a pump and motor and is in a drive connection with an internal combustion engine (). When operated as a pump, the power unit sucks hydraulic fluid out of a tank () and delivers into a delivery side (P), and, when operated as a motor, functions as a hydraulic starter to start the internal combustion engine (). When operated as a motor, the power unit is supplied with hydraulic fluid from a hydraulic accumulator (). The displacement volume of the power unit () is set by a displacement volume control device () actuated by a positioning piston device () supplied with hydraulic fluid from a charging pressure circuit (). The power unit () includes a supplemental positioning piston device () in an operative connection with the displacement volume control device () and which is actuated directly by the pressure present in the hydraulic accumulator (). By means of a connection of the supplemental positioning piston device () with the hydraulic accumulator, the power unit () can be adjusted to increase the displacement volume to start the internal combustion engine (). 1. A hydrostatic power unit , comprising:a variable displacement machine with a continuously variable displacement volume and operable as a pump and motor;an internal combustion engine connected to the variable displacement machine, wherein when operated as a pump, a suction side of the power unit sucks hydraulic fluid out of the tank and delivers into a delivery side, wherein when operated as a motor, the power unit is a hydraulic starter to start the internal combustion engine, and wherein the power unit operated as a motor is supplied with hydraulic fluid from a hydraulic accumulator;a displacement volume control device to set a displacement volume of the power unit;a positioning piston device supplied with hydraulic fluid from a charging pressure circuit; anda ...

REVERSIBLE HYDRAULIC PRESSURE CONVERTER EMPLOYING TUBULAR VALVES

The reversible hydraulic pressure converter () employing tubular valves includes a medium-pressure stage () consisting of a medium-pressure cylinder () and a double-acting medium-pressure piston () the position of which is sent to a control computer of the converter () by a piston position sensor (), the cylinder () and the piston () forming two medium-pressure chambers () that can be placed in communication with a medium-pressure inlet-outlet circuit () by at least one tubular valve (), the converter () also including two high-pressure cylinders () each cooperating with a high-pressure piston () of smaller diameter and defining two high-pressure chambers () that can be placed in communication with a high-pressure inlet-outlet circuit () by at least one tubular valve (), each of the various tubular valves () cooperating with an independent valve actuator (). 11. Reversible hydraulic pressure converter () employing tubular valves , characterized in that it includes:{'b': 44', '2', '4', '3', '5', '4', '2', '4', '5', '5', '3, 'a medium-pressure stage () consisting of a medium-pressure cylinder () each of the two ends of which is closed by a medium-pressure head () and in which can move in translation in a fluid-tight manner a double-acting medium-pressure cylinder () that has a pressure face () facing each medium-pressure head () while said cylinder (), said heads () and said pressure faces () form two medium-pressure chambers () axially positioned on respective opposite sides of the double-acting medium-pressure piston ();'}{'b': 45', '7', '5', '7', '3', '8', '7', '4', '9', '2', '8', '9', '10', '8', '11, 'at least one high-pressure stage () consisting of a piston connecting rod () for each pressure face (), said rod () having a first end fastened to the double-acting medium-pressure piston () and a second end fastened to a high-pressure piston (), said rod () passing in a fluid-tight manner through the medium-pressure head () that is located on its side so as to ...

HYDRAULIC CULVERT CLEANER

A culvert cleaner for cleaning clogged culverts using pressurized water having a self-contained water pump and maneuvering capabilities is described. The culvert cleaner includes a frame, a water pressurizing system, and a control system. The culvert cleaner may be used on a number of different machineries (e.g. truck, excavator, and rail equipment). The culvert cleaner is positioned in front of a clogged culvert using the hydraulic excavator that is on the railway. Once the culvert cleaner is position, the water pressurizing system of the culvert cleaner is engaged and high pressure water is used to clean the culvert. During cleaning alterations may be made to nozzle in the x-axis and y-axis due to the integrated positioning of the nozzle as a part of the water pressurizing system. 1. A culvert cleaner for cleaning clogged culverts using pressurized water , comprising: a central frame,', 'and', 'a pump guard configured to protect a hydraulic motor, where the pump guard is in mechanical communication with the central frame'}, 'a push plate configured to maneuver the culvert cleaner, where the push plate is in mechanical communication with the central frame;, 'a frame, the frame comprising'} a hydraulic circuit configured to power a water pump of the water pressurizing system;', 'the water pump, where the water pump is in mechanical communication with the hydraulic circuit;', 'an intake port, where the intake port is in mechanical communication with the water pump;', 'the piping provides fluid communication between the water pump, the ball valve, and a nozzle,', 'piping configured to deliver pressurized water to a ball valve of the water pressurizing system, wherein'}, the ball valves moves between an open position and a closed position, an electric motor, wherein', 'the electric motor controls the movement of the ball valve between the open position and the closed position;, 'the ball valve, wherein'}, 'the nozzle delivers pressurized water to the clogged culvert;', ...

HYDROSTATIC SYSTEM

A hydrostatic system includes a hydraulic system and at least one sensor configured to monitor a parameter of the hydraulic system, the at least one sensor including a wireless transmitter configured to generate wireless transmissions based on the parameter. The hydrostatic system further includes an electronic control box including a wireless receiver that is configured to receive the wireless transmissions generated by the at least one sensor. The electronic control box is configured to control the hydraulic system based at least in part on the received wireless transmissions. 1. A hydrostatic system comprising:a hydrostatic unit;at least one sensor configured to monitor a parameter of the hydrostatic unit, the at least one sensor including a wireless transmitter configured to generate wireless transmissions based on the parameter; andan electronic control box including a wireless receiver configured to receive the wireless transmissions generated by the at least one sensor and a processor configured to control the hydrostatic system based at least in part on the received wireless transmissions.2. The hydrostatic system according to claim 1 , further comprising a housing containing the hydrostatic unit;wherein the at least one sensor is mounted to the housing.3. The hydrostatic system according to claim 2 , wherein the electronic control box is mounted to the housing.4. The hydrostatic system according to claim 2 , wherein the electronic control box is detached from the housing.5. The hydrostatic system according to claim 1 , wherein the at least one sensor includes a pressure sensor.6. The hydrostatic system according to claim 1 , wherein the at least one sensor includes a speed sensor.7. The hydrostatic system according to claim 6 , further comprising at least one second sensor;wherein the at least one second sensor includes a pressure sensor.8. The hydrostatic system according to claim 1 , wherein the hydrostatic unit includes a pump.9. The hydrostatic system ...

Device and Method to Convert Reciprocating Linear Motion into Linear Fluid Flow

The invention provides a device and method for converting reciprocating motion of various amplitudes and frequencies into unidirectional fluid flow, comprising a piston section and a valves section. The unidirectional fluid flow may then be used for various processes including for example conversion to mechanical or electrical power. 1. A device for converting reciprocating motion into unidirectional fluid flow , comprising:a piston section;a valves section;wherein the piston section comprising a piston chamber housing a piston head;{'b': 1', '70', '71', '72, 'wherein said piston chamber () comprises a piston chamber seal side end (), piston chamber non-seal side end (), and piston chamber peripheral side wall ();'}{'b': 6', '7, 'wherein said piston chamber seal side end and said piston chamber non-seal side end define opposite ends of said piston chamber; wherein said piston chamber seal side end has surfaces that define a seal side aperture (); wherein said piston chamber non-seal side end has surfaces that define non seal side aperture () so that said seal side aperture and said non seal side aperture are in opposite ends of said piston chamber;'}wherein said valve section comprises a first pneumatic line connecting to the piston chamber via said seal side aperture in said piston chamber seal side end;wherein said valve section comprises a second pneumatic line connecting to the piston chamber via said non seal side aperture in said piston chamber non-seal side end;wherein said valve section comprises at least four one way valves;wherein said valve section is configured to pass fluid out of said piston chamber via said seal side aperture in said piston chamber seal side end and to pass fluid into said piston chamber via said non seal side aperture in said piston chamber non-seal side end when said piston head moves towards said piston chamber seal side end, and said valve section is configured to pass fluid into said piston chamber via said seal side aperture in ...

DEVICE FOR SUPPLYING AND MODIFYING A CYLINDER CUBIC CAPACITY OF A HYDRAULIC MOTOR

A device for supplying and modifying the cylinder cubic capacity of a hydraulic motor, comprising: a first conduit () for supplying and discharging an operating fluid to a first side of the hydraulic motor (M); a second conduit () for supplying and discharging an operating fluid to a second side of the motor (M); an actuator () provided to modify the cubic capacity of the motor (M); an increase conduit () for increasing the cubic capacity of the motor (M), connected to the actuator () for supplying operating fluid to a side of the actuator () which produces an increase of the cubic capacity of the motor (M); a reduction conduit () for reducing the cubic capacity of the motor (M), connected to the actuator () for supplying operating fluid to a side of the actuator (), which produces a reduction of the cubic capacity of the motor (M). The device is structured to supply to the increase conduit () and to the reduction conduit () a proportional pressure to the load acting on the winch. 112331333233. A device for supplying and modifying a cylinder cubic capacity of a hydraulic motor , comprising: a first conduit () for supplying and discharging an operating fluid to a first side of the hydraulic motor (M); a second conduit () for supplying and discharging an operating fluid to a second side of the hydraulic motor (M); an actuator () , suitable for modifying a cubic capacity of the motor (M); an increase conduit () for increasing the cubic capacity of the motor (M) , connected to the actuator () for supplying operating fluid to a side of the actuator () which produces an increase of the cubic capacity of the motor (M); a reduction conduit () for reducing the cubic capacity of the motor (M) , connected to the actuator () for supplying operating fluid to a side of the actuator () which produces a reduction of the cubic capacity of the motor (M);characterised in that:{'b': '41', 'is it comprises a first piloting conduit ();'}{'b': 5', '1', '2', '41, 'it comprises a bistable ...

Liquid ring system and applications thereof

The present disclosure concerns liquid ring systems, including (i) a fixed or rotating casing adapted to contain a liquid, (ii) a rotor located within the casing and having at least one impeller, (iii) a liquid ring formed by rotation of the rotor or the casing, and (iv) a plurality of gas cells formed between the inner surface of the liquid ring and vanes of the impeller. For example, at least one compressing gas cell is in fluid connection with at least one expanding gas cell integrated with the rotor. A liquid valve may include a small gas cell with a reciprocating liquid surface and at least two fluid connections having a free pathway between the connections during an angle of rotation of the rotor and a closed pathway between the connections during 360° minus the angle of rotation.

DEDUCING PRESSURE FROM REOPENING ANGLE

A measurement of the pressure of hydraulic fluid in a fluid working machine can be determined from the timing of the movement of valves which selectively seal a working chamber of cyclically varying volume from a fluid gallery. The timing of opening of a low pressure valve, to connect a working chamber to a low pressure fluid gallery, following the closure of a high pressure valve to seal a working chamber can be used to estimate the pressure in the high pressure fluid gallery at the moment of closure of the high pressure valve. 1. A method of estimating the pressure of hydraulic fluid in a fluid working machine , the fluid working machine comprising a working chamber of cyclically varying volume , first and second hydraulic fluid galleries , a first valve which regulates the flow of hydraulic fluid between the working chamber and the first fluid gallery and a second valve which regulates the flow of hydraulic fluid between the working chamber and the second fluid gallery , the method comprising detecting an event indicative of the opening or closing of the first valve to bring the working chamber into or out of fluid communication with the first fluid gallery and estimating the said pressure from the timing of the said detected event.2. A method according to claim 1 , wherein the estimated pressure is the pressure of hydraulic fluid in the second fluid gallery or in the working chamber claim 1 , so that the working chamber is sealed from both the first and second fluid galleries claim 1 , until the next time that the first valve opens.3. A method according to claim 1 , wherein the first gallery is a lower pressure gallery and the second gallery is a higher pressure gallery.4. A method according to claim 1 , wherein the first valve comprises a valve member and the event indicative of the opening or closing of the first valve is the physical movement of the valve member claim 1 , said movement detected by a sensor.5. A method according to claim 4 , wherein the first ...

MOTOR CAPABLE OF MANY DIFFERENT APPLICATIONS

A mechanical device comprising, a gear rack having a first point and a second point; at least one piston attached either to said first point or said second point; said piston having an exterior surface and an interior surface; wherein said exterior surface is facing away from said gear rack and wherein said gear rack is attached to said interior surface; said gear rack being gyratingly coupled with an actuator shaft; wherein said gear rack is capable of moving in a substantially linear direction due to a force being applied to said exterior surface or said interior surface; and wherein said actuator shaft rotating due to the said motion of said gear rack; in another embodiment, at least one piston having an interior surface and an exterior surface; said inner side pivotingly mated with a connecting rod; said connecting rod having an opposing point B which is rotationally fastened to a counterbalance; said counterbalance rotating about an actuating shaft; a cylinder chamber having with a top breach housing said at least one piston; a pull shaft pivotingly connected to said exterior surface with pivoting joint and to a gear rack with a second pivoting joint; said pull shaft reciprocly advancing within said top breach; said reciprocation causing said gear rack to similarly reciprocate causing rotation of an input shaft; wherein said input shaft is mated with said gear rack through a one way gear box; and an accelerating spark plug, disposed in the body of said cylinder chamber for igniting combustible materials introduced into said cylinder chamber. 1. An propulsion engine comprising , at least one piston having an interior surface and an exterior surface; said inner side pivotingly mated with a connecting rod; said connecting rod having an opposing point B which is rotationally fastened to a counterbalance; said counterbalance rotating about an actuating shaft; a cylinder chamber housing said at least one piston having a top breach; a pull shaft pivotingly connected ...

HYDRAULIC ACTUATION UNIT, PARTICULARLY FOR CONTROLLING THE STARTING AND STOPPING OF HYDRAULIC MOTORS

A hydraulic actuation unit for controlling the starting and stopping of hydraulic motors includes a first main circuit and a second main circuit, a first recirculation circuit and a second recirculation circuit, a counterbalancing valve, which includes a shuttle, and a first discharge channel and a second discharge channel. The shuttle includes a first check valve and a second check valve. The first check valve includes at least one first flow control element that can move from an open position to a closure position. The second check valve includes at least one second flow control element that can move from an open position to a closure position. The first and second check valves respectively are provided with first damping means and second damping means in order to slow down the passage movement respectively of the first flow control element and of the second flow control element. 111.-. (canceled)12. A hydraulic actuation unit , particularly for controlling the starting and stopping of hydraulic motors , comprising:a first main circuit and a second main circuit, which are adapted to connect selectively a supply of pressurized working liquid and a tank to a hydraulic motor;a first recirculation circuit and a second recirculation circuit for returning respectively a fraction of said working liquid from said second main circuit to said first main circuit and vice versa;a counterbalancing valve, which comprises a shuttle that can switch to a first end position and a second end position, which correspond to the actuation of said motor with mutually opposite directions of rotation, and comprises a first passage channel and a second passage channel, which are arranged respectively along said first main circuit and along said second main circuit; said shuttle comprising a first check valve and a second check valve respectively arranged in said first passage channel and in said second passage channel, said first check valve comprising at least one first flow control ...

Valve timing in electronically commutated hydraulic machine

An electronically commutated hydraulic machine is coupled to a drivetrain. Working chambers of the hydraulic machine are connected to low and high pressure manifold through electronically controlled valves. The phase of opening and closing of the valves has a default. In order to avoid cycle failure due to acceleration events, for example due to backlash in the drivetrain, the phase of opening or closing of the electronically controlled valves is temporarily advanced or retarded from the default timing.

Device Which Applies Work To Outside With Environmental Thermal Energy

The present invention relates to a device which applies work to the outside with environmental thermal energy, including a positive feedback heat pump system and a reciprocating multi-stage heat exchange working system. A high temperature heat source and a low temperature heat source are produced using a positive feedback heat pump, and at the same time the reciprocating multistage heat exchange working device applies work with heat energy and cold energy. As we can get several times of heat energy and cold energy when a certain amount of electric energy is consumed by a heat pump, and the thermal efficiency of the reciprocating multistage heat exchange working system is 100% theoretically, so we can get several times of electric energy. That is to say, its output is much bigger than its input, and the device can run without electric energy input, and provide electric energy to the outside. 1. A device which applies work to the outside with environmental thermal energy , comprising a positive feedback heat pump system and a reciprocating multistage heat exchange working system. The positive feedback heat pump creates a high temperature heat source and a low temperature heat source. The reciprocating multistage heat-exchange working device applies work with heat energy and cold energy. First , the fluid working medium is moved in the forward direction and passes multiple containers with energy storage media , so that the fluid working medium gradually cools down or heats up to the required temperature. At the same time , energy storage mediums with different qualities are obtained. Subsequently , fluid working mediums are moved in a reverse direction in turn , and pass multiple containers with energy storage mediums , so that the link gradually heats or cools to the required temperature to use heat energy or cold energy stored in the storage medium once again , and to make full use of heat energy or cold energy.2. The device which applies work to the outside with ...

DRAIN FOR DYNAMIC SEALING ASSEMBLY

The present invention relates to a system comprising: a shaft having a distal end and a proximal end; a casing defining a housing in which a hydraulic device is rotatably mounted on the shaft; and a sealing element comprising a low pressure dynamic sealing means and a reinforced dynamic sealing means formed by a static seal tightly mounted on a friction pad, such as to isolate the dynamic sealing means from the rotating hydraulic device, said sealing element defining a discharge chamber between the dynamic sealing means and the reinforced dynamic sealing means, which discharge chamber is connected to a drain via a pipe arranged on the surface of the shaft, between the hydraulic device and the shaft, so as to discharge the fluid located in the discharge chamber, such that said discharge chamber is not subjected to the pressure in the casing of the hydraulic device. 1. A system comprising:{'b': 1', '11, 'a shaft () presenting a distal end () and a proximal end,'}{'b': '1', 'a casing (C) defining a housing in which a hydraulic device (M, F) is rotatably mounted on the shaft (),'}{'b': 4', '5', '51', '51', '4', '4', '5, 'a sealing member comprising low-pressure dynamic sealing means () and reinforced dynamic sealing means () formed from a static sealing gasket () tightly mounted on a friction pad () so as to isolate said dynamic sealing means () from the rotating hydraulic device (M, F), and defining a discharge chamber between the dynamic sealing means () and the reinforced dynamic sealing means (),'}{'b': 18', '91', '16', '1, 'characterized in that the discharge chamber is connected to a drain (, ) via a pipe () arranged on the surface of the shaft () between the hydraulic device (M, F) and the shaft so as to discharge fluid located in the discharge chamber such that said discharge chamber is not subjected to the pressure prevailing in the casing (C) of the hydraulic device (M, F).'}2161111. The system according to claim 1 , in which said pipe () arranged between the ...

SWITCHABLE HYDROSTATIC ADJUSTING DEVICE

Hydrostatic adjusting device of a hydraulic machine, the swept volume of which can be adjusted by way of a servo adjusting unit, having a control unit which has a control cylinder which has at least one inlet for pressurized hydraulic fluid, at least one servo connector for a connecting line to the servo adjusting unit, and at least one outlet to a hydraulic fluid collecting region. A control piston is arranged in the control cylinder, which control piston can be displaced by means of at least one control piston actuator and has control edges. In interaction with control edges which are configured in the control cylinder, the inlet or the outlet can be alternately connected hydraulically to the connecting line, whereby the pressure which prevails in the connecting line can be returned hydraulically via a control line to at least one end side of the control piston. 18191017242516926271817182139381724261616321920183230. Hydrostatic adjusting device () of a hydraulic machine () , the swept volume of which can be adjusted by way of a servo adjusting unit () , having a control unit () which has a control cylinder () which has at least one inlet () for pressurized hydraulic fluid , at least one servo connector () for a connecting line () to the servo adjusting unit () , and at least one outlet () to a hydraulic fluid collecting region () , a control piston () being arranged in the control cylinder () , which control piston () can be displaced by means of at least one control piston actuator () and has control edges () , as a result of which , in interaction with control edges () which are configured in the control cylinder () , the inlet () or the outlet () can be alternately connected hydraulically to the connecting line () , and it being possible for the pressure which prevails in the connecting line () to be returned hydraulically via a control line () to at least one end side ( , ) of the control piston () , characterized in that the control line () can be opened and ...

ROTATIONAL MECHANICAL TRANSFORMER APPARATUS AND METHODS

A rotational mechanical transformer has been arranged for transfer and transformation of velocity, force, angular momentum, torque, energy/work, energy density, and pressure, associated with at least one rotating device. The transformer includes an actuator having at least one cylinder arranged to contain the at least one working fluid, an externally supported shaft and a drive shaft having parallel axes orthogonally displaced by a predetermined displacement, and each respectively connected to at least one connecting arm and at least one additional connecting arm. The at least one cylinder includes at least one actuator rod and at least one blind end each respectively connected with at least one revolving eccenter axle and the at least one drive shaft, and have been arranged to allow for angular displacements of the at least one actuator with respect to the parallel axis. 1. A rotational mechanical transformer arranged for transfer and transformation of velocity , force , angular momentum , torque , energy/work , energy density , and pressure associated with at least one rotating device containing at least one working fluid comprising:at least one actuator including at least one cylinder arranged to contain the at least one working fluid;at least one externally supported shaft and at least one drive shaft, having parallel axes orthogonally displaced by a predetermined displacement, and each respectively connected to at least one connecting arm and at least one additional connecting arm;wherein, the at least one cylinder includes at least one actuator rod and at least one blind end each respectively connected with at least one revolving eccenter axle and the at least one drive shaft, and arranged to allow for angular displacements of the at least one actuator with respect to the parallel axis;wherein, the at least one revolving eccenter axle have been rotationally connected to the at least one connecting arm and at least one revolving eccenter bar, while the at least ...

BRAKE SYSTEM AND FLUID PRESSURE MOTOR INCLUDING THE SAME

A brake system configured to brake a hydraulic motor includes a valve device configured to open and close supply passages through which working oil pressurized in a hydraulic pump is supplied to a brake device, the valve device has a first connection port to which the working oil is led from the hydraulic pump, a second connection port from which the working oil is led to the brake device, and a valve element provided with a pressure receiving surface facing the first connection port, and the valve element permits communication between the first connection port and the second connection port when pressure of the working oil led to the first connection port reaches predetermined pressure, and shuts off the communication between the first connection port and the second connection port when the pressure of the working oil led to the first connection port becomes less than the predetermined pressure. 1. A brake system used in a fluid pressure motor including a cylinder block configured to be rotated by fluid pressure , an output shaft configured to be rotated integrally with the cylinder block , and a case configured to rotatably support the output shaft , the brake system comprising:a brake device configured to cancel brake force by supply of a pressurized working fluid and generate the brake force by discharge of the working fluid;a supply passage through which the working fluid pressurized in a working fluid pressurizing source is supplied to the brake device;a valve device configured to open and close the supply passage;a discharge passage through which the working fluid discharged from the brake device flows; anda restrictor configured to apply resistance to the working fluid flowing through the discharge passage, whereinthe valve device has a first connection port connected to the upstream side of the supply passage, the first connection port to which the working fluid is led from the working fluid pressurizing source, a second connection port connected to the ...

Housing for a Motor or Compressor

A housing for a motor or compressor has an elongate crankcase with two end surfaces. At least one cylinder chamber is provided in which a piston is caused to perform a movement by rotation of the crankshaft. The internal diameter of the crankcase narrows monotonously from the first end surface to the second end surface. A crankcase shaped in this way can be manufactured particularly easily by virtue of the casting being performed around a shaping mandrel. A shaping mandrel of this type must likewise narrow monotonously in order that, after the casting has been performed around it, the shaping mandrel can be pulled out of the housing at a first end. By way of the shaping of the crankcase, it is possible for the housing to be of unipartite and at the same time very compact construction.

HYDRAULIC DEVICE WITH RADIAL PISTONS COMPRISING AT LEAST ONE BALL BEARING

The present invention relates to a hydraulic device () with radial pistons, comprising: 2. The hydraulic device according to claim 1 , wherein the shaft comprises an axial abutment surface against which the cylinder block is pressed claim 1 , when the distributor exerts the thrust force against the cylinder block.3. The hydraulic device according to claim 1 , wherein the second mechanical bearing is a conical roller bearing or an oblique contact ball bearing.4. The hydraulic device according to claim 3 , wherein the second mechanical bearing comprises an external cage and an internal cage between which rolling elements are mounted claim 3 , and wherein the axially opposite sides of the internal cage and of the external cage are respectively mounted in axial contact with the shaft and the cover claim 3 , so as to take up the thrust force.5. The hydraulic device according to claim 3 , comprising a sleeve mounted in rotation around the shaft and by means of which the second mechanical bearing is mounted in radial contact and in axial contact with the shaft.6. The hydraulic device according to claim 1 , wherein the set of second mechanical bearings comprises a radial contact ball bearing and a ball thrust bearing.7. The hydraulic device according to claim 6 , wherein the ball thrust bearing comprises a first cage and a second between which balls are mounted claim 6 , wherein the radial contact ball bearing of the set comprises an internal cage and an external cage between which are mounted the balls claim 6 , and wherein the first cage is mounted in axial contact with the shaft claim 6 , and axially opposite sides of the external cage of the radial contact ball bearing of the set are respectively mounted in axial contact with the second cage of the ball thrust bearing and the cover so as to take up the thrust force.8. The hydraulic device according to claim 1 , wherein the set of second mechanical bearings comprises a needle bearing and a cylindrical roller thrust ...

Energy chain

A system for producing drive energy includes a control unit, and an intensifier that receives water from a water source and oil from an oil source, pressurizes the oil, and transfers pressurized oil. The system also includes a compression cylinder that receives oil from the oil source and the pressurized oil from the intensifier so that oil collected in the compression cylinder is pressurized to a predetermined pressure, and that transfers the oil at the predetermined pressure. A control valve is provided for controlling the oil to be received by the compression cylinder from the oil source and for controlling the oil transferred at the predetermined pressure. The system includes a hydraulic motor that receives the oil transferred at the predetermined pressure, and utilizes the predetermined pressure to drive the hydraulic motor. The hydraulic motor turns a generator so that the generator produces energy without the expenditure of fossil fuel.

Slagverktyg.

Погружной жидкостный двигатель "батрак"

1. Погружной жидкостный двигатель, содержащий: цилиндр, в котором расположен догрузочный поршень-поплавок с манжетами, коленчатый вал с маховиком, связанный через шатун с указанным догрузочным поршнем-поплавком, по меньшей мере, одну выводную трубу с односторонним механизмом водоотвода, примыкающим к нижней части указанного цилиндра, клапанный механизм водозабора, расположенный в нижней части указанного цилиндра и содержащий водозаборный клапан, связанный с кулачком, расположенным на кулачковом валу, который связан через механическую передачу с указанным коленчатым валом с маховиком.2. Двигатель по п.1, в котором в верхней части цилиндра дополнительно размещено, по меньшей мере, одно водоотводное отверстие.3. Двигатель по любому из предшествующих пп.1 или 2, в котором догрузочный поршень-поплавок состоит из двух камер, а именно верхней нагрузочной камеры и нижней поплавковой камеры. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F03C 1/00 (11) (13) 2012 135 712 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012135712/06, 20.08.2012 (71) Заявитель(и): Борисенко Олег Владимирович (UA) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): Борисенко Олег Владимирович (UA) 23.01.2012 UA A201200655 Адрес для переписки: 63250, Украина, Харьковская обл., Нововодолажский р-н, с. Староверовка, ул. Ленина, 6, О.В. Борисенко A 2 0 1 2 1 3 5 7 1 2 R U Стр.: 1 A (57) Формула изобретения 1. Погружной жидкостный двигатель, содержащий: цилиндр, в котором расположен догрузочный поршень-поплавок с манжетами, коленчатый вал с маховиком, связанный через шатун с указанным догрузочным поршнем-поплавком, по меньшей мере, одну выводную трубу с односторонним механизмом водоотвода, примыкающим к нижней части указанного цилиндра, клапанный механизм водозабора, расположенный в нижней части указанного цилиндра и содержащий водозаборный клапан, связанный с кулачком, расположенным на кулачковом валу, который связан через механическую ...

基于多级双柱塞-偏心齿轮机构的全金属井下动力钻具

本发明公开了一种基于多级双柱塞‑偏心齿轮机构的全金属井下动力钻具，包括同轴设置的配流轴、外管和多级偏心齿轮驱动机构，配流轴通过多级偏心齿轮驱动机构悬挂支撑在外管内。本发明提供了一种钻井液水力驱动的新型旋转柱塞式动力钻具，柱塞结构加工精度高、成本低，柱塞式动密封效果好；通过带有偏心结构的行星齿轮系传递扭矩，提高了动力钻具的工作效率。多级双柱塞‑偏心齿轮机构驱动的动力钻具采用全金属结构，可耐高温环境；柱塞结构简单、密封效果好，钻具曲面加工难度小；有效缓解了金属密封效果差的问题；同时，采用模块化结构，可以安装多级柱塞结构进行接力式驱动，采用双柱塞结构保证内部力的平衡稳定且能够增大钻具扭矩。

Power generating system from salinity gradient energy utilizing automatic self-reciprocating pressure exchange

The present invention relates to a power generating system capable of recovering salinity gradient energy utilizing automatic self-reciprocating pressure exchange. The power generating system includes a fresh water supply unit supplying fresh water; a salt water supply unit supplying salt water; an osmotic unit having a low-concentration region connected to the fresh water supply unit and a high-concentration region connected to the salt water supply unit, with the regions being divided by a membrane; and a pressure exchange unit having at least two cylinders formed with a main inlet port and a main outlet port, a piston positioned in each cylinder, a piston rod connecting the piston, and an auxiliary piston reciprocating in the cylinder to selectively open or close the main inlet or outlet port. The salt water of the high-concentration region transmitted by the pressure generated from the osmotic unit flows in any one of the cylinders of the pressure exchange unit, and thus the piston rod reciprocates to recovery the pressure generated from the osmotic unit. Therefore, since a valve driving unit required for the continuous drive of the pressure delay osmotic system of the related art is directly applied to the reciprocating pressure exchange apparatus, a part of the energy can be reused, without consuming the energy, and the rest can be mechanically recovered.

Shocking hydraulic device

Hydraulic shocking device

The intention is to be able to reduce the wear and permit easier starting. The percussion apparatus has a housing (1) to which a tool can be fastened. A piston (27) with a head (4) is axially movable in a reciprocating manner in a cylinder space in the housing. A sleeve-shaped, axially movable control valve (7) concentrically encloses the piston in such a way that the cylindrical inner face forms a cylindrical wall of the cylinder space surrounding the head. A front chamber (8) is formed in the cylinder space on the percussion side of the head. The front chamber (8) is separated from the control-valve space (6) of the control valve by a housing shoulder (28) surrounding the head. There is a passage (13) in the cylindrical surface of the head in order to produce a pressure-fluid connection between the front chamber and the control-valve space at the level of the end of the percussion movement of the piston. On the other hand, the pressure-fluid connection is interrupted near the end of the stroke movement of the piston (27) by the head (4) and by the shoulder (28). The pressure fluid required for the control of the control valve (7) can thus be obtained in a simple manner from the front chamber (8) of the cylinder space through the passage (13) in the piston head. <IMAGE>

Percussive-action hydraulic device

Control system for a work machine and method for controlling a hydraulic cylinder

本发明涉及一种用于工程机械(101)的控制系统，所述系统包括电动机构(202)、液压机构(204)和至少一个液压缸(108)。电动机构(202)以驱动方式连接至液压机构(204)。液压机构(204)通过第一管路(210)连接至液压缸(108)的活塞侧(208)，并且通过第二管路(214)连接至液压缸(108)的活塞杆侧(212)。在第一工作状态，液压机构(204)适合于由电动机构(202)驱动并且向液压缸(108)提供来自油箱(216)的加压流体；在第二工作状态，液压机构(204)适合于由来自液压缸(108)的液压流体流驱动并且驱动电动机构。

Device doing external work through environment heat energy

本发明涉及一种利用环境热能对外做功的装置，包括正反馈热泵系统和往复多级热交换做功系统，利用正反馈热泵产生高温热源和低温热源，同时采用往复多级热交换做功装置利用热能和冷能做功，先正向移动流体状做功介质通过多个装有储能介质的容器，让流体状做功介质逐渐降温或者升温到所需温度，同时得到不同品质的储能介质，然后再反向依次移动流体状做功介质通过多个装有储能介质的容器，让该环节逐渐升温或者降温到所需温度，以再次利用存储在储能介质中的热能或者冷能，达到充分利用热能或者冷能的目的。

Control apparatus and control method for a construction machinery

본 발명은 건설기계의 제어장치 및 제어방법에 관한 것이다. 본 발명의 실시예에 따른 건설기계의 제어장치 및 제어방법은, 엔진 또는 유압 펌프모터가 보조 동력장치로부터 동력을 보조 받을 때에, 토크선도를 변경할 때에 기대되는 제1연비이득과, 엔진회전수를 변경할 때에 기대되는 제2연비이득을 구하고, 상기 제1 연비이득과 상기 제2 연비이득 중에 유리한 것을 선택하여 토크선도를 변경하거나 엔진회전수를 변경하도록 제어한다. 이로써 본 발명의 실시예는 건설기계를 최적의 연비로 제어할 수 있다.

The control device and control method of engineering machinery

本发明涉及一种工程机械的控制装置及控制方法，本发明的实施例的工程机械的控制装置能够对在基于燃料消耗图降低发动机转速的情况下所预期的燃料消耗增益与在变更为燃料消耗图中包括的多个转矩线图中对应于被提供辅助动力的条件的转矩线图来选择适用的情况下所预期的燃料消耗增益进行比较，并以预期更大的燃料消耗增益的方法控制发动机。

Shock hydraulic machine

1507605 Recoil damped percussion tool ATLAS COPCO AB 12 March 1976 [18 March 1975] 09962/76 Heading B4C [Also in Division B3] A recoil damped percussion tool comprises a work tool 22, a machine housing coupled to the work tool and adapted to apply a feeding force to the work tool in a working direction, a hammer piston 17 which reciprocates in the machine housing to deliver impact energy to work tool 22, the work tool recoiling after an impact, and a recoil damping device comprising a retard chamber 70 in the machine housing containing pressurized hydraulic fluid, and a retard piston 68 which recoils with the work tool 22 and is acted upon by the hydraulic fluid in the retard chamber. Preferably, the retard piston has a piston surface 69 which forms the forward end of retard chamber 70 and the increase in pressure in chamber 70 when tool 22 recoils is damped by hydraulic fluid pressure reservoir 48 which is connected to retard chamber 70 by conduits 47 and 71. Driving means.-Hammer piston 17 is reciprocated to strike work tool 22 by hydraulic fluid supplied by inlet conduit 47 and controlled by distributing valve slide 46. In the position shown in Fig. 3 slide 46 allows fluid to enter conduit 55 and rear pressure chamber 39 to drive piston 17, whilst fluid driven from forward pressure chamber 43 flows through conduits 56 and 52 to a sump (not shown). Fluid from conduit 55 blows through passage 64 in slide 46 to act on annular piston surface 63 and maintains slide 46 in its left hand position. When the piston 17 has moved far enough to the left to allow high pressure fluid in conduit 55 to reach control line 62 via expanded rear chamber 39 and for control line 61 to be drained via middle chamber 15, valve slide 46 is pushed to the right. Chamber 43 is supplied with high pressure fluid and chamber 39 is drained to produce a return stroke of piston 17 until control line 61 is pressurized, control line 62 is drained and slide 46 shifted to the left to repeat the driving ...

Liquid Piston Internal Combustion Power System

본 발명은 액체피스톤 내연기관을 이용해 발전하는 방법, 장치 및 시스템에 관한 것이다. 본 발명의 액체피스톤 내연기관은 내연기관과 증기피스톤 기관을 하나로 새롭게 상승 조합한 것이다. 이 기관은 다수의 실린더를 포함하고, 각 실린더는 액체피스톤을 구비한다. ICE(내연기관) 시스템은 6개의 모듈, 즉 PGM(100), ERS(200), PCM(300), HAS(400), DAC(500), AEM(600)을 갖는다. The present invention relates to a method, apparatus and system for power generation using a liquid piston internal combustion engine. The liquid piston internal combustion engine of the present invention is a new synergistic combination of an internal combustion engine and a vapor piston engine. The engine comprises a plurality of cylinders, each cylinder having a liquid piston. The ICE (Internal Combustion Engine) system has six modules: PGM 100, ERS 200, PCM 300, HAS 400, DAC 500, AEM 600.

The device externally to be done work using environment thermal energy

本发明涉及一种利用环境热能对外做功的装置，包括正反馈热泵系统和往复多级热交换做功系统，利用正反馈热泵产生高温热源和低温热源，同时采用往复多级热交换做功装置利用热能和冷能做功，先正向移动流体状做功介质通过多个装有储能介质的容器，让流体状做功介质逐渐降温或者升温到所需温度，同时得到不同品质的储能介质，然后再反向依次移动流体状做功介质通过多个装有储能介质的容器，让该环节逐渐升温或者降温到所需温度，以再次利用存储在储能介质中的热能或者冷能，达到充分利用热能或者冷能的目的。

Method for determining the absorption volume of a radial piston machine and control device

Die Erfindung betrifft ein Verfahren zur Bestimmung des Schluckvolumens einer Radialkolbenmaschine mit schwenkbar angeordneten Zylindern und mit verstellbarer Exzentrizität eines auf einer Antriebswelle angeordneten Exzenters, wobei ein Schwenkwinkel eines Zylinders mit Hilfe eines Schwenkwinkelsensors in Form eines ADC-Wertes erfasst wird, und wobei aus dem ADC-Wert das Schluckvolumen berechnet wird. Während einer Einlernphase werden Referenzkurven der Spannungssignale ermittelt und abgespeichert und in einer Auswertephase wird das aktuell eingestellte Schluckvolumen mit Hilfe eines Vergleichsalgorithmus bestimmt, bei dem ein aktuell erfasster ADC-Wert mit jeweils dazugehörenden Referenzwerten der Referenzkurven verglichen wird. Ferner wird eine Steuereinrichtung angegeben, die zur Durchführung des genannten Verfahrens eingerichtet ist. The invention relates to a method for determining the displacement volume of a radial piston machine with pivotally arranged cylinders and with adjustable eccentricity of an eccentric arranged on a drive shaft, wherein a pivot angle of a cylinder is detected by means of a swivel angle sensor in the form of an ADC value, and wherein from the ADC Value the swallow volume is calculated. During a learning phase, reference curves of the voltage signals are determined and stored, and in an evaluation phase, the currently set absorption volume is determined with the aid of a comparison algorithm, in which a currently detected ADC value is compared with respectively associated reference values of the reference curves. Furthermore, a control device is provided, which is set up for carrying out said method.

Hydraulic motor

FIELD: engines and pumps. ^ SUBSTANCE: hydraulic motor comprises housing 12 accommodating rotary shaft 13, piston 24 and reverser 30 including first sleeve 38 rigidly coupled with piston, second fixed sleeve 40, and distributor 42 arranged to turn inside second sleeve. Elements of channels and orifices are located between second sleeve and distributor. It comprises also means to control distributor turn in the function of first sleeve displacement for piston travel reversal. ^ EFFECT: simple control. ^ 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 439 365 (13) C2 (51) МПК F03C 1/007 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2007147853/06, 18.12.2007 (24) Дата начала отсчета срока действия патента: 18.12.2007 (72) Автор(ы): КРУПАЛЛА Жан-Клод (FR), ЮГ Паскаль (FR) (73) Патентообладатель(и): АЛЬФА ЛАВАЛЬ МОАТТИ (FR) R U Приоритет(ы): (30) Конвенционный приоритет: 19.12.2006 FR 0655616 (43) Дата публикации заявки: 27.06.2009 Бюл. № 18 2 4 3 9 3 6 5 (45) Опубликовано: 10.01.2012 Бюл. № 1 (56) Список документов, цитированных в отчете о поиске: EP 0022021 A1, 07.01.1981. RU 2094650 C1, 27.10.1997. US 4373425 A, 15.02.1983. US 7162944 B2, 16.01.2007. (57) Реферат: Изобретение относится к гидравлическому двигателю с вращающимся валом, связанным с поршнем прямолинейного возвратнопоступательного движения. Гидравлический двигатель содержит корпус (12), заключающий в себе вращающийся вал (13), поршень (24) и реверсор (30), который содержит первую втулку (38), жестко соединенную с поршнем, вторую неподвижную втулку (40) и распределитель (42), установленный с возможностью поворота внутри второй втулки. Элементы каналов и отверстий расположены между второй втулкой и распределителем. Имеются средства управления поворотом распределителя (42) в функции перемещения первой втулки для реверса направления перемещения поршня. Обеспечивается простота управления. 7 з.п. флы, 11 ил. R U 2 4 3 9 3 6 5 (54) ГИДРАВЛИЧЕСКИЙ ...

Method for controlling a hydraulic cylinder and control system for a work machine

本发明涉及一种用于控制液压缸(108)的方法，包括如下步骤：检测至少一个运行参数，和基于检测到的运行参数可变地控制液压缸的活塞杆侧(212)和活塞侧(208)之间的连通路径。

Cylinder controller

Ecological clean energy water energy engine

本发明生态环保水能发动机，利用广阔富足的水资源，应用我国现今成熟的设备制造技术及先进工艺，以冷态无热源无化学反应的特殊物理结构进行合理特殊功能组合，将水的流量流速压力通过物理结构逐级提升冲击涡轮旋转，应用转子及导轨将功率进一步放大构成了本发明生态清洁能源水能发动机，依此取代碳排放量大污染严重的传统内燃发动机，实现我国碳达峰碳中和的宏伟目标，本发明涵盖两大部分，1涡轮转子发动机；应用在小轿车小型发动机领域，2曲轴杠杆发动机，应用在重载运输车及陆海领域内工农业机械生产各个方面，节能环保经济效益远大于内燃发动机，并能和现今新能源充分融合，筑牢我国新能源发展基石。

Reciprocating cylindrical hydraulic motor - has poppet valve opened and closed by movement of double acting piston via push rod

The reciprocating hydraulic motor has a cylindrical body (1) with end covers (7a, 7b). Two longitudinal holes (2a, 2b) in the cylinder wall are fitted with poppet valves (11a, 11'a) and (11b, 11'b), with each pair connected by a valve rod (9a, 9b). Fluid enters the port (3a) and flows through the open valve (11a) into the cylinder, and pushes the piston (15) to the left. When the spring (17) on the bush (21b) is pushed by the piston (15) against the bar (18), the valves (11a, 11b) are closed, whilst the valves (11'a, 11'b) are opened so that pressure is applied to the opposite face of the piston (15) and reverses the direction of motion.

HYDRAULIC PERCUSSION DEVICE

RADIAL PISTON HYDRAULIC APPARATUS

La présente invention concerne un appareil hydraulique (10) à pistons radiaux, comprenant : - un arbre (12) disposé selon un axe (11); - un couvercle (13) formant un élément de carter, le couvercle et l'arbre étant libres en rotation l'un par rapport à l'autre ; - un ensemble de distribution comprenant : - une came multilobes (14) ; - un bloc cylindres (15) ; - un distributeur (16) configuré pour exercer un effort de poussée (P) contre le bloc cylindres (15) selon l'axe (11) de l'arbre ; - un ensemble (22) de roulements mécaniques comprenant au moins un roulement mécanique (22a) monté en contact radial entre le couvercle (13) et l'arbre (12), ledit ensemble étant configuré pour reprendre l'effort de poussée (P) exercé par le distributeur (16) ; et - un roulement à billes à contacts droits monté en contact radial entre le couvercle (13) et l'arbre (12). The present invention relates to a hydraulic apparatus (10) with radial pistons, comprising: - a shaft (12) disposed along an axis (11); a cover (13) forming a housing element, the cover and the shaft being free to rotate with respect to each other; a distribution assembly comprising: a multilobe cam (14); a cylinder block (15); - A distributor (16) configured to exert a thrust force (P) against the cylinder block (15) along the axis (11) of the shaft; an assembly (22) of mechanical bearings comprising at least one mechanical bearing (22a) mounted in radial contact between the cover (13) and the shaft (12), said assembly being configured to take up the thrust force (P) exercised by the dispenser (16); and - a straight-contact ball bearing mounted in radial contact between the cover (13) and the shaft (12).

REBOUND DAMPER FOR PERCUSSION TOOL

ADDITIONAL SECTION OF PUSH

L'invention concerne un ensemble de distribution d'un appareil hydraulique à pistons radiaux, ledit appareil comprenant un bloc cylindres engageable sur un arbre par translation, ledit ensemble comprenant : - Un distributeur, en contact avec ledit bloc cylindres, - Un couvercle de distribution, - Une première et une deuxième chambres définies respectivement par un premier et un deuxième volumes situés à l'interface entre ledit distributeur et ledit couvercle de distribution, et destinées aux fluides sous pression permettant la conversion mécanique-pression, ledit ensemble étant caractérisée en ce qu'il comprend une section additionnelle définie par un troisième volume situé à l'interface entre ledit distributeur et ledit couvercle de distribution, ladite section étant destinée à recevoir un fluide sous pression pour permettre l'engagement du bloc cylindres sur l'arbre. The invention relates to a dispensing assembly of a hydraulic device with radial pistons, said apparatus comprising a cylinder block engageable on a shaft by translation, said assembly comprising: - A distributor, in contact with said cylinder block, - A dispensing lid First and second chambers respectively defined by first and second volumes located at the interface between said distributor and said dispensing cover, and intended for pressurized fluids for mechanical-pressure conversion, said assembly being characterized in that it comprises an additional section defined by a third volume located at the interface between said distributor and said dispensing cover, said section being intended to receive a fluid under pressure to allow the engagement of the cylinder block on the shaft.

Percussion device driven by a pressure fluid

Patent FR2459393B1

Vibrator

HYDRAULIC OSCILLATOR

L'appareil comprend un piston 13 se déplaçant dans un cylindre 16, une valve d'inversion 17, des premier 12b et second 12c passages pilotes pour commander l'opération d'inversion de la valve pilote 17. Il est caractérisé par le fait que ledit cylindre 16 possède un canal 16a, et que ledit piston 13 possède des premiers moyens de liaison 13e pour coupler par fluide ledit canal pilote 16a et ledit premier passage pilote 12b lorsque ledit piston approche ladite seconde position et des seconds moyens de liaison 13f pour coupler par fluide ledit canal pilote 16a et ledit second passage pilote 12c lorsque ledit piston approche de ladite première position pour inverser alternativement de cette façon ladite valve pilote 17. Application à la commande de mouvement alternatif. The apparatus comprises a piston 13 moving in a cylinder 16, a reversing valve 17, first 12b and second 12c pilot passages for controlling the reversing operation of the pilot valve 17. It is characterized in that said cylinder 16 has a channel 16a, and said piston 13 has first connecting means 13e for fluidly coupling said pilot channel 16a and said first pilot passage 12b as said piston approaches said second position and second connecting means 13f for coupling by fluid said pilot channel 16a and said second pilot passage 12c when said piston approaches said first position to thereby alternately reverse said pilot valve 17. Application to the control of reciprocating motion.

Patent FR2387359B1

Patent FR2267858A1

IMPROVEMENT TO VIBRATION CYLINDERS

PROCEDE D'ELIMINATION DES EFFETS DE LA FREQUENCE PROPRE HYDRAULIQUE DANS LES VERINS DE VIBRATIONS LINEAIRES OU ROTATIFS DONT ON REDUIT OU MEME FAIT DISPARAITRE LES EFFETS DE LA FREQUENCE PROPRE PAR ABSORPTION D'ENERGIE. PROCESS FOR ELIMINATION OF THE EFFECTS OF THE OWN HYDRAULIC FREQUENCY IN LINEAR OR ROTARY VIBRATION CYLINDERS WHOSE EFFECTS OF THE OWN FREQUENCY BY ABSORPTION OF ENERGY ARE REDUCED OR EVEN DISAPPEARED.

HYDRAULIC MOTOR

Ce moteur hydraulique comprend un cylindre étagé 2 et un piston étagé 17 dont la partie avant 18 forme une pompe avec la portion 13 du cylindre et deux clapets respectivement d'aspiration et de refoulement 8 et 9. Le moteur est alimenté en eau sous pression par une entrée 99. Cette eau est transmise aux deux faces du piston 17 situées dans les alésages il et 12 du cylindre directement ou à travers des lumières et passages formés dans la paroi du piston et dans un manchon en deux pièces contenu dans la cavité de la tête de ce piston. Un tiroir coulisse dans ce manchon et traverse le chapeau 1 du cylindre. Ses mouvements sont limités par des butées et des épaulements et commandés par la pression. Dans ses mouvements, le tiroir modifie tantôt dans un sens et tantôt dans l'autre, les aires des surfaces du piston exposées à la pression régnant dans l'alésage 12 et à celle régnant dans l'alesage Il pour commander les mouvements du piston. Ce moteur est applicable notamment à l'injection de doses d'engrais liquide dans les canalisations d'irrigation. This hydraulic motor comprises a stepped cylinder 2 and a stepped piston 17, the front part 18 of which forms a pump with the portion 13 of the cylinder and two respectively suction and discharge valves 8 and 9. The engine is supplied with pressurized water by an inlet 99. This water is transmitted to the two faces of the piston 17 located in the bores 11 and 12 of the cylinder directly or through openings and passages formed in the wall of the piston and in a two-piece sleeve contained in the cavity of the cylinder. head of this piston. A drawer slides in this sleeve and passes through the cap 1 of the cylinder. Its movements are limited by stops and shoulders and controlled by pressure. In its movements, the slide changes sometimes in one direction and sometimes in the other, the areas of the surfaces of the piston exposed to the pressure prevailing in the bore 12 and to that prevailing in the ...

Patent FR2264599B1

Patent FR2339752B3

PROGRESSIVE ORDER

Hydraulic oscillator with two moving parts - has reciprocating piston in cylinder and reciprocating reversal valve in chamber

Hydraulic oscillator with only two movable parts consisting of a reciprocating piston in a cylinder and a reciprocating reversal valve in a chamber. There are means to generate different flow conditions at opposite ends of the valve in the chamber, which include inlet and outlet orifices in the cylinder, connected with the valve chamber and closed and released by the piston during its reciprocation. The movable parts are in a housing with a main inlet and outlet. The valve has a flow passage between its ends and this is continuously connected with the main inlet, while the opposite ends of the valve chamber are permanently connected to the main outlet.

PERCUSSION TOOL

HYDRAULIC CYLINDER, WITH INCREASED LOAD AT THE END OF STROKE

a. Appareil à vérin hydraulique. b. Appareil caractérisé par un tiroir 8 à deux positions pour commuter le vérin hydraulique 1 à double effort et régler la pression du fluide hydraulique dans le sens du travail du vérin pour être au moins supérieure à un seuil et communiquer au piston 30 du vérin une énergie cinétique supérieure à une valeur donnée. c. L'invention s'applique à l'entraînement d'un dispositif servant à frapper ou à déformer une pièce. at. Device with hydraulic cylinder. b. Device characterized by a slide 8 with two positions for switching the hydraulic cylinder 1 with double effort and adjusting the pressure of the hydraulic fluid in the working direction of the cylinder to be at least greater than a threshold and to impart kinetic energy to the piston 30 of the cylinder greater than a given value. vs. The invention applies to the drive of a device used to strike or deform a part.

ALTERNATIVE MOVEMENT HYDRAULIC MOTOR

L'invention concerne un moteur hydraulique à moteur alternatif, éliminant les problèmes de pulsation de pression. Un piston libre 208 et un distributeur à commande différentielle sont tous deux soumis à la pression d'une chambre d'amortissement 202 et d'une chambre de travail 204. La position du distributeur est fonction de la pression d'amortissement qui dépend de la position axiale du piston 204. Les pressions relatives sont choisies pour créer un mouvement alternatif du piston avec un amortissement efficace en fin de course. Le distributeur est un tiroir classique, monté dans un alésage séparé. Applications : marteaux hydrauliques, compacteurs, perforatrices, etc. Disclosed is a reciprocating motor hydraulic motor, eliminating pressure pulsation problems. A free piston 208 and a differential control valve are both pressurized by a damping chamber 202 and a working chamber 204. The position of the valve is a function of the damping pressure which depends on the pressure. axial position of piston 204. The relative pressures are chosen to create reciprocating movement of the piston with effective damping at the end of the stroke. The distributor is a conventional drawer, mounted in a separate bore. Applications: hydraulic hammers, compactors, drills, etc.

PAINT SUPPLY SYSTEM FOR A HYDRODYNAMIC ACTION SPRAY GUN

IMPROVEMENT IN ALTERNATIVE HYDRAULIC MOTORS

L'invention concerne des moteurs hydrauliques alternatifs. L'invention propose un moteur hydraulique alternatif comprenant un piston et un cylindre et caractérisé par le fait qu'une face du piston est exposée à la pression d'une chambre de compression reliée, par des orifices commandés par le piston, à une pression d'alimentation dans une partie terminale de sa course et à l'échappement dans une partie terminale opposée de la course, tandis qu'entre ces parties terminales de la course se situe une course compression/détente pendant laquelle la chambre de compression est fermée et le liquide quelle contient subit, alternativement, une détente dans une gamme supérieure de pression et une compression dans une gamme inférieure de pression. Application aux outils à percussion. The invention relates to reciprocating hydraulic motors. The invention proposes a reciprocating hydraulic motor comprising a piston and a cylinder and characterized in that one face of the piston is exposed to the pressure of a compression chamber connected, by orifices controlled by the piston, to a pressure d 'supply to an end portion of its stroke and to the exhaust to an opposite end portion of the stroke, while between these end portions of the stroke is a compression / expansion stroke during which the compression chamber is closed and the liquid which it contains undergoes, alternately, an expansion in a higher pressure range and a compression in a lower pressure range. Application to percussion tools.

LIQUID METER FOR USE AS A MOTOR, PARTICULARLY FOR A DOSING PUMP

HYDRAULIC MOTOR

Moteur hydraulique à arbre rotatif couplé à un piston à déplacement rectiligne alternatif.Le moteur hydraulique comprend un carter (12) renfermant un arbre rotatif (13), un piston (24) et un inverseur (30) comportant un premier manchon (38) solidaire du piston, un deuxième manchon (40) fixe et un distributeur (42) monté rotatif à l'intérieur du deuxième manchon et des éléments de conduit et trous agencés entre le deuxième manchon et le distributeur et des moyens de commande de rotation du distributeur (42) en fonction du déplacement du premier manchon pour inverser le sens de déplacement du piston. Hydraulic motor with rotary shaft coupled to a piston with reciprocating rectilinear displacement.The hydraulic motor comprises a housing (12) enclosing a rotary shaft (13), a piston (24) and an inverter (30) comprising a first sleeve (38) secured to of the piston, a second fixed sleeve (40) and a distributor (42) rotatably mounted inside the second sleeve and conduit elements and holes arranged between the second sleeve and the distributor and means for controlling the rotation of the distributor ( 42) as a function of the displacement of the first sleeve to reverse the direction of movement of the piston.

DRIVE

Motor and pump unit with superimposed cylinders - has driving and pumping pistons on common shaft containing passages connecting chambers

Patent FR2329980B2

REINFORCED AUTOMOTIVE VEHICLE STRUCTURE

L'invention concerne une structure de véhicule automobile (10) comprenant un compartiment avant (12) présentant des parois latérales (17, 19), et un habitacle (14) séparé dudit compartiment avant par un tablier (16), ledit tablier (16) présentant une traverse rigide (18), ladite structure (10) comprenant deux supports d'éléments de suspension en cloche (24, 26) respectivement adjacents auxdites parois latérales (17, 19), lesdits supports d'éléments de suspension en cloche (24, 26) présentant chacun une face intérieure (28, 30), ladite structure (10) comprenant en outre des entretoises (32, 34) s'étendant respectivement entre lesdits supports d'éléments de suspension en cloche (26, 24) et ladite traverse rigide (18). Lesdites entretoises (32, 34) sont respectivement ancrées dans les faces intérieures (28, 30) desdits deux supports d'éléments de suspension en cloche (26, 24). The invention relates to a motor vehicle structure (10) comprising a front compartment (12) having side walls (17, 19), and a passenger compartment (14) separated from said front compartment by an apron (16), said deck (16). ) having a rigid cross member (18), said structure (10) comprising two bell-shaped suspension element supports (24, 26) respectively adjacent to said side walls (17, 19), said bell-shaped suspension element supports ( 24, 26) each having an inner face (28, 30), said structure (10) further comprising spacers (32, 34) extending respectively between said bell-shaped suspension member supports (26, 24) and said rigid cross member (18). Said spacers (32, 34) are respectively anchored in the inner faces (28, 30) of said two bell-shaped suspension element supports (26, 24).

RADIAL PISTON HYDRAULIC APPARATUS

La présente invention concerne un appareil hydraulique (10) à pistons radiaux, comprenant : - un arbre (12) disposé selon un axe (11); - un couvercle (13) formant un élément de carter, le couvercle et l'arbre étant libres en rotation l'un par rapport à l'autre ; - un ensemble de distribution comprenant : - une came multilobes (14) ; - un bloc cylindres (15) ; - un distributeur (16) configuré pour exercer un effort de poussée (P) contre le bloc cylindres (15) selon l'axe (11) de l'arbre ; - un ensemble (22) de roulements mécaniques comprenant au moins un roulement mécanique (22a) monté en contact radial entre le couvercle (13) et l'arbre (12), ledit ensemble étant configuré pour reprendre l'effort de poussée (P) exercé par le distributeur (16) ; et - un roulement à billes à contacts droits monté en contact radial entre le couvercle (13) et l'arbre (12). The present invention relates to a hydraulic apparatus (10) with radial pistons, comprising: - a shaft (12) disposed along an axis (11); a cover (13) forming a housing element, the cover and the shaft being free to rotate with respect to each other; a distribution assembly comprising: a multilobe cam (14); a cylinder block (15); - A distributor (16) configured to exert a thrust force (P) against the cylinder block (15) along the axis (11) of the shaft; an assembly (22) of mechanical bearings comprising at least one mechanical bearing (22a) mounted in radial contact between the cover (13) and the shaft (12), said assembly being configured to take up the thrust force (P) exercised by the dispenser (16); and - a straight-contact ball bearing mounted in radial contact between the cover (13) and the shaft (12).

HYDRAULIC ROTATION AND PERCUSSION DEVICE

Lubricating fluid e.g. oil, evacuation system for e.g. vehicle's hydraulic motor, has discharge chamber coupled to drain via conduit placed on shaft surface to evacuate fluid in chamber so that chamber is not subjected to pressure in casing

The system has a sealing element including a low pressure dynamic sealing unit i.e. lip seal (4), and a reinforced dynamic sealing unit (5) formed of a static seal tightly mounted on a friction pad to isolate the lip seal from a hydraulic apparatus e.g. hydraulic motor (M). A discharge chamber is coupled to a drain (18) via a conduit placed on a surface of a shaft (1) between the hydraulic apparatus and the shaft so as to evacuate fluid in the chamber such that the chamber is not subjected to pressure in a casing (C) in which the apparatus is arranged. The conduit is a groove formed at the periphery of the shaft. The lip seal and the reinforced dynamic sealing unit define the discharge chamber.

Mixing pump blending two liquids in required proportions - utilises pistons in variable volume chambers to control auxiliary liq. supply

An auxiliary liquid which is mixed with another liquid such as water is required to be in specific proportions. This is effected by a water counter comprising two pairs of chambers with variable volumes which also ensure correct dosage of the auxiliary liquid. A counter comprises two cylinders (1a, b) in which pistons (2a, b) form two variable volume chambers (3a, 3a', 3b, 3'b). A shaft (4b) ensures operation in synchronism. Each chamber communicates with an inlet pipe through an orifice and via spring loaded valves. Each chamber communicates with an outlet pipe through an orifice (11) and spring (14) loaded valves (12). As the pistons move the chamber contents are alternately emptied while operating a piston (2b, b) in cylinders (27b) connected to inlet values (28) for auxiliary liquid.

PUMPING SYSTEM

Compressed air distribution system for reciprocating machines,

Hydraulic means with the radial piston including at least one ball bearing

本发明涉及具有径向活塞的液压装置(10)，其包括：轴(12)，其沿着轴线(1)布置；形成壳体元件的覆盖件(13)，此覆盖件与轴相对于彼此自由旋转；分配组件，包括：多凸角凸轮(14)；缸体柱(15)；分配件(16)，其构造为沿着轴的轴线(11)对着缸体柱(15)施加推力(P)；机械轴承组件(22)，其包括安装为在覆盖件(13)与轴(12)之间径向接触的至少一个机械轴承(22a)，此组件构造为承受通过分配件(16)施加的推力(P)；以及径向接触球轴承，其安装为在覆盖件(13)与轴(12)之间径向接触。

Patent FR2004864A1

HYDRAULIC PRESSURE AMPLIFIER

UN PISTON ETAGE 18 EST MONTE COULISSANT DANS UN CYLINDRE 17 DE MANIERE A FORMER UNE PREMIERE CHAMBRE ANNULAIRE 24, RELIEE EN PERMANENCE A UNE AMENEE DE FLUIDE PRIMAIRE SOUS PRESSION 31, 32, ET UNE SECONDE CHAMBRE ANNULAIRE 25 DE PLUS GRANDE SECTION. UNE VALVE DE COMMANDE 34, AVEC TIROIR A SECTIONS DIFFERENTIELLES 35, MET LA SECONDE CHAMBRE 25 EN COMMUNICATION ALTERNATIVEMENT AVEC L'AMENEE DE FLUIDE PRIMAIRE SOUS PRESSION 31, 32 ET AVEC UN CONDUIT DE RETOUR 40. LA VALVE 34 EST PILOTEE PAR LE FLUIDE PRIMAIRE, AU MOYEN D'UN CONDUIT 47 PARTANT DU CYLINDRE 17. LE PISTON 18 EST PROLONGE PAR DEUX PLONGEURS OPPOSES 19, 20 QUI PENETRENT DANS DEUX CHAMBRES 2, 5 MISES EN RELATION AVEC DES ARRIVEES 3, 6 ET DES DEPARTS 4, 7, 12, 13, 14 D'UN FLUIDE SECONDAIRE. APPLICATION A LA FOURNITURE D'EAU SOUS HAUTE PRESSION, POUR LA FORATION DE ROCHES. A STAGE PISTON 18 IS SLIDING MOUNTED IN A CYLINDER 17 SO TO FORM A FIRST ANNULAR CHAMBER 24, PERMANENTLY CONNECTED TO A PRIMARY FLUID SUPPLY UNDER PRESSURE 31, 32, AND A SECOND ANNULAR CHAMBER 25 OF LARGER SECTION. A CONTROL VALVE 34, WITH DIFFERENTIAL SECTIONS DRAWER 35, PUT THE SECOND CHAMBER 25 IN ALTERNATIVE COMMUNICATION WITH THE PRIMARY FLUID SUPPLY UNDER PRESSURE 31, 32 AND WITH A RETURN DUCT 40. VALVE 34 IS PILOTTED BY PRIMARY FLUID , BY MEANS OF A DUCT 47 FROM CYLINDER 17. PISTON 18 IS EXTENDED BY TWO OPPOSED DIVERS 19, 20 WHICH ENTER TWO BEDROOMS 2, 5 CONNECTED WITH ARRIVALS 3, 6 AND DEPARTURES 4, 7, 12 , 13, 14 OF A SECONDARY FLUID. APPLICATION TO THE SUPPLY OF WATER UNDER HIGH PRESSURE, FOR ROCK DRILLING.

Motor plunger component and machining method thereof

马达柱塞组件，包括柱塞与柱塞环，其中，柱塞一端设置有工艺阻尼孔，另一端设置有工艺圆角，并在工艺阻尼孔下端设置有油道阻尼孔，油道阻尼孔与柱塞油道连通，而工艺阻尼孔的外围设置有柱塞承压球面，柱塞承压球面下方设置有工艺防护外圆，工艺防护外圆与柱塞装压球面连接；工艺圆角外围设置有防护倒角，在防护倒角上方设置有柱塞回转球面，柱塞环安装在柱塞回转球面一侧的柱塞环安装槽内。本发明具备耐磨、耐腐蚀及耐冲击特性，且加工精度高，在与马达主动轴球窝配合驱动时不易发生运动干涉；柱塞组件之间按照既定装配间隙与尺寸装配，不仅降低液压马达运行的噪音，而且保证各个组件的传动性能，降低日常维护费用，有效延长柱塞组件的使用寿命。

Well pump power drive

1522937 Reciprocating pumps and motors CANADIAN FOREMOST Ltd 7 April 1977 [9 April 1976] 14836/77 Heading F1A A hydraulic drive for a well pump comprises a double-acting hydraulic motor piston 16 connected to the well pump piston 27 by rods 17, 28, 26 and also connected to a piston 33 operating in a gas cylinder 32, the space beneath piston 33 being connected to a source 39 of gas under pressure, e.g. nitrogen, so that during the downstroke of the pump, energy is stored in the gas, and is released to assist the upstroke, the hydraulic motor being in a closed loop with a variable displacement pump having two outlet ports. A control circuit is described for controlling the stroke and speed of the motor and monitoring the pump operation.

IMPROVEMENTS TO PERCUSSION DRILLING EQUIPMENT, SUCH AS ROCK DRILLING HAMMERS

Device for damping the recoil of a work tool connected to a percussion tool

ABSTRACT A recoil damping device for a percussion tool in which the recoils are damped by means of a pressurized hydraulic fluid entrapped in the machine housing.

Patent FR2038313A1

Liquid operated impact tool - has liquid operated piston to compress gas which provides impact

The tool has a main piston fitted into a main cylinder, the upper chamber of the main cylinder being filled with gas of predetermined pressure. A liquid chamber for containing liquid for pressing the main piston upward by liquid pressure is provided between the lower half of the main piston and the main cylinder. On the lower end of the main cylinder is fitted a tool, such as a chisel and the like, which is struck by the main piston when the main piston is driven down by the gas compressed in the upper part of the main cylinder by the raising of the main piston. Thus the exhaust noise of a conventional pneumatic device is avoided.

Patent FR2009370A1

Patent FR2268602B1

Engine using compressed air

An engine (32) driven by compressed air, including an electric motor (36) driven by a battery (B), means (38) for generating the compressed air by use of a drive power of the electric motor (36), an intake manifold (40) connected with an outlet of the means (38), a cylinder block (32) including a plurality of cylinders communicating with the intake manifold (40), a crank shaft connected to a piston in the cylinder by a connecting rod, and a cam shaft connected with the crank shaft by means of the belt or chain.