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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 3757. Отображено 100.
14-02-2013 дата публикации

Fluid valves having multiple fluid flow control members

Номер: US20130037146A1
Автор: Richard James Anagnos
Принадлежит: FISHER CONTROLS INTERNATIONAL LLC

Fluid valves having multiple fluid flow control members are described herein. An example valve trim apparatus includes a first flow control member disposed in a passageway of a fluid valve, the first flow control member moves relative to a first orifice of the passageway to provide a first fluid flow characteristic through the passageway. A second flow control member is disposed within the passageway and is to move relative to a second orifice of the passageway defined by the first flow control member when the first flow control member is in sealing engagement with the first orifice to provide a second fluid flow characteristic through the passageway. The first fluid flow characteristic is different than the second fluid flow characteristic.

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Номер записи: 1
18-04-2013 дата публикации

HYDRAULIC PULSE VALVE WITH IMPROVED PULSE CONTROL

Номер: US20130092246A1
Автор: Kolle Jack
Принадлежит: Tempress Technologies, Inc.

Hydraulic pulses are produced each time that a pulse valve interrupts the flow of a pressurized fluid through a conduit. The pulse valve includes an elongate housing having an inlet configured to couple to the conduit to receive the pressurized fluid, and an outlet configured to couple to one or more tools. In the housing, a valve assembly includes a poppet reciprocating between open and closed positions, and a poppet seat, in which the poppet closes to at least partially block the flow of pressurized fluid through the valve. A pilot within the poppet moves between disparate positions to modify fluid paths within the valve. When the valve is open, a relatively lower pressure is produced by a Venturi effect as the fluid flows through a throat in the poppet seat, to provide a differential pressure used to move the pilot and poppet. An optional bypass reduces the pulse amplitude. 1. A pulse valve for producing pressure pulses within a conduit , comprising: (i) an internal passage for conveying a pressurized fluid between an inlet disposed on one end of the housing and an outlet disposed on an opposite end of the housing, the inlet being configured to couple to a source of the pressurized fluid, and the outlet being configured to provide the pressurized fluid flowing through the outlet to a component that is coupled to the housing; and', '(ii) a poppet seat disposed adjacent to the outlet, the poppet seat including a constricted throat and at least one port disposed in the throat, the at least one port being coupled in fluid communication with an internal volume;, '(a) an elongate housing that includes (i) a poppet that is reciprocally movable between a closed position in which it at least partially blocks pressurized fluid from flowing through the poppet seat, and an open position in which the pressurized fluid flows through the throat of the poppet seat;', '(ii) a pilot that is disposed within the poppet and reciprocates between disparate first and second positions to ...

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Номер записи: 2
20-06-2013 дата публикации

Apparatus for flow regulation

Номер: US20130153044A1
Автор: Keith Donald Woodford
Принадлежит: TCO AS

An apparatus for regulating the flow of a fluid from a source to a target location comprises a housing defining a fluid inlet configured to communicate with a fluid source and a fluid outlet configured to communicate with a target location, and a flow path extending between the fluid inlet and fluid outlet. An inlet valve assembly is mounted in the flow path and comprises a valve seat and a valve member configured to cooperate with the valve seat to regulate flow through the flow path. A balance arrangement is provided and is configured to balance the effect of fluid pressure acting on the inlet valve assembly.

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Номер записи: 3
04-07-2013 дата публикации

FAIL-SAFE APPARATUS FOR USE WITH FLUID VALVES

Номер: US20130168580A1
Автор: Burgett Eric Jacob, Tutt Brian J.
Принадлежит: TESCOM CORPORATION

Fail-safe apparatus for use with fluid valves are disclosed herein. An example fail-safe apparatus includes a first piston, a second piston movably coupled relative to the first piston, and a fluid chamber between the first and second pistons to receive a control fluid. The control fluid is to operatively couple the first and second pistons when the control fluid is provided in the fluid chamber. The first piston is operatively decoupled from the second piston when at least some of the control fluid is removed from the fluid chamber. 1. An apparatus for use with a fluid valve comprising:a first piston;a second piston movably coupled relative to the first piston; anda fluid chamber defined between the first and second pistons to receive a control fluid, the control fluid to operatively couple the first and second pistons when the control fluid is provided in the fluid chamber, the first piston operatively decoupled from the second piston when at least some of the control fluid is removed from the fluid chamber.2. The apparatus of claim 1 , wherein the first piston comprises a first opening formed in a first surface of the first piston.3. The apparatus of claim 2 , further comprising a first stem protruding from a second surface of the first piston claim 2 , the first surface being opposite the second surface.4. The apparatus of claim 2 , wherein the first opening is to receive a drive stem of an electric flow controller.5. The apparatus of claim 4 , wherein the first opening has a first shoulder to engage a first flanged portion of the drive stem.6. The apparatus of claim 3 , wherein the second piston comprises a second opening formed in a third surface of the second piston.7. The apparatus of claim 6 , further comprising a second stem protruding from a fourth surface of the second piston claim 6 , the third surface being opposite the fourth surface.8. The apparatus of claim 6 , wherein the fluid chamber is formed between the second and third surfaces of the ...

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Номер записи: 4
04-07-2013 дата публикации

VALVE ACTUATOR

Номер: US20130168582A1
Автор: Webster David Wade
Принадлежит: Aker Solutions Singapore PTE Ltd.

The valve actuator () has a movable control element () which is typically connected to the valve to be opened/closed and a propulsion device () which may be a hydraulically operated piston () for moving the movable control element. A resilient element () which may be in the form of a spring arrangement has a stroke extending from a first relatively unloaded position to a second relatively loaded position and a transmission mechanism () is also provided, where the resilient element is loaded under the action of the propulsion device via the transmission mechanism and is configured to urge the moveable portion of the propulsion device towards the first position via the transmission mechanism when loaded. The transmission mechanism provides a gearing ratio reduction between the moveable portion of the propulsion device and the resilient element. 1. A valve actuator comprising:a movable control element;a propulsion device for moving said movable control element, the propulsion device comprising a moveable portion having a stroke extending from a first position to a second position;a resilient element, having a stroke extending from a first relatively unloaded position to a second relatively loaded position;a transmission mechanism;the resilient element being loaded under the action of the propulsion device via the transmission mechanism and being configured to urge the moveable portion of the propulsion device towards the first position via the transmission mechanism when loaded; andwherein the transmission mechanism provides a gearing ratio between the moveable portion of the propulsion device and the resilient element.2. The valve actuator as claimed in claim 1 , wherein the transmission mechanism is configured to vary the gearing ratio between the moveable portion of the propulsion device and the resilient element claim 1 , within the stroke of the moveable portion of the propulsion device.3. The valve actuator as claimed in claim 1 , wherein the transmission ...

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Номер записи: 5
04-07-2013 дата публикации

Mounting assemblies for use with fluid control devices

Номер: US20130168587A1
Автор: Brian J. Tutt, Eric Jacob Burgett, Todd William Larsen
Принадлежит: Tescom Corp

Mounting assemblies for use with fluid control devices are disclosed. An example apparatus includes a bonnet to be coupled to a valve and a mounting assembly including a first side to be coupled to an actuator and a second side to be rotatably coupled at an end of the bonnet to enable a rotational position of the mounting assembly to change relative to the bonnet.

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Номер записи: 6
18-07-2013 дата публикации

AIR-OPERATED VALVE

Номер: US20130181148A1
Автор: SHINOHARA Tsutomu, Tokuda Ichiro
Принадлежит: FUJIKIN INCORPORATED

The present invention is directed to provide an air-operated valve suitable for use in a form using a one-touch joint. A casing is made by an upper casing and a lower casing which are screwed in each other. Piston driving means has a one-touch joint attached to a top part of the upper casing 1. An air-operated valve comprising:a body provided with a fluid passage;a casing provided above the body;a valve member which opens/closes the fluid passage;a valve rod which moves upward/downward to move the valve member in an open/close direction;a piston provided for the valve rod; andpiston driving means which drives the piston by operation air,wherein the casing is made by an upper casing and a lower casing which are screwed in each other, and the piston driving means has a one-touch joint attached to a top part of the upper casing.2. The air-operated valve according to claim 1 , wherein a through hole is provided in a center part of a top wall of the upper casing claim 1 ,the through hole is made by a small-diameter part on a lower end side, a large-diameter part on an upper end side, and a female screw part having an intermediate diameter provided between the small-diameter part and the large-diameter part,the one-touch joint is inserted in the large-diameter part of the through hole so that a male screw part provided in a lower end part thereof is screwed in the female screw part of the through hole and a release bush provided at an upper end part thereof is exposed,and an upper end part of the valve rod is movably inserted in the small-diameter part of the through hole. The present invention relates to an air-operated valve which opens/closes a fluid passage by driving a piston by the pressure of operation air.There is a well-known air-operated valve having a body provided with a fluid passage, a casing provided above the body, a valve member which opens/closes the fluid passage, a valve rod which moves upward/downward to move the valve member in an open/close ...

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Номер записи: 7
15-08-2013 дата публикации

Driving and Adjusting Device of Passive Shuttle-Type Shut-Off Valve

Номер: US20130207011A1
Автор: Zeng Xiangwei
Принадлежит: WINJET HIGH-TECH INVESTMENT CO., LTD. (BEIJING)

A driving and adjusting device of a passive shuttle-type shut-off valve is provided. The problems of a big valve body structure size, a non-random angle installment, a single drive mode, low stability and reliability, a high temperature and poisonous material entering into the driving and adjusting device and unadjustable on-off speed and low volume in the prior device are solved. A main body () is connected with an upstream pipe () and a downstream pipe (). A pressure port () on the upstream pipe () is connected with the driving device. A double acting cylinder () is provided in a valve sleeve (). The left and right chambers of the double acting cylinder are connected with the valve clack (). The driving device is composed of a regulating valve, a directional valve, a check valve, a boost-insulation valve and an accumulator (). It can select the drive mode and adjust the on-off speed and the flow volume of the valve. 13313. A driving and adjusting device of passive shuttle-type shut-off valve , characterized in that the left end of a valve body () is connected with an upstream pipe () , and the right end of the valve body is connected with a downstream pipe ();{'b': 21', '31', '31', '24', '25', '25', '34', '21', '27', '24', '29', '23', '35', '11', '12', '47', '61', '7', '54', '36', '48', '60', '6', '46', '8', '44', '5', '49', '8', '18', '43', '17', '8', '2', '1', '10', '41', '62', '18', '5', '42', '16', '19', '40', '18', '4', '15', '50, 'in an inner chamber, a valve sleeve () and a coaxial valve shaft () are in axial sliding engagement with each other; the left end of the valve shaft () is connected with a valve flap () and the right end thereof is connected with a piston (), which piston () is in a double acting cylinder () within the valve sleeve (); a double acting cylinder cap () is provided at the right end of the valve sleeve, and flow channels are disposed around the valve sleeve; the left side of the valve flap () is in sealing engagement with a valve seat ...

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Номер записи: 8
22-08-2013 дата публикации

VALVE ACTUATOR WITH VENT

Номер: US20130214185A1
Автор: Feldman Joel, Hasak Dave, Hayes, II Charles W., Sulcs Peter, Waller Yancy J., Zeiler Daniel E.
Принадлежит: Swagelok Company

The present application relates to valve and actuator assemblies. The valve actuator assemblies may include a capless valve actuating arrangement, include a replaceable passage defining member that includes seal members, include a valve member that is assembled in a valve chamber from an end of the valve body that is opposite an end that a piston is assembled in, and/or include a valve member that may be rotated in a valve body without affecting the ability of the valve member to perform its sealing functions. 1. A valve actuating arrangement comprising:a valve body;a valve member comprising a shaft,a piston connected to the shaft;the valve member being movable by operation of the piston and being disposed in the valve body, the valve body comprising a valve chamber that provides fluid communication between an inlet passage, an outlet passage and a vent passage based on the position of the valve member, the valve member having an open and a closed position to control flow of process media between the inlet passage, the outlet passage and the vent passage in response to operation of the piston,the shaft being disposed in and extending through a sealed chamber, the sealed chamber being sealed at one end from the valve chamber and at another end from a piston chamber, the piston being disposed in the piston chamber, anda vent that extends from the sealed chamber to an external surface.2. The valve actuating arrangement of wherein the valve member and piston are moveable between a first position and a second position claim 1 , wherein the piston extends past the end of the valve body when the valve member is in the open position.3. The valve actuating arrangement of wherein a portion of the piston that extends past the end of the valve body has a finish that differs from a valve body finish to provide a visual indication that the valve member is in the open position.4. The valve actuating arrangement of further comprising a piston seal disposed between the piston and ...

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Номер записи: 9
22-08-2013 дата публикации

Adjustable stroke actuators

Номер: US20130214188A1
Автор: Terry Glenn Young
Принадлежит: Array Holdings Inc

A valve actuator apparatus and method for adjusting for valve bore drift using an adjustable downstop is disclosed. The adjustable downstop comprises a downstop and a drift adjuster. The drift adjuster can me moved in an upwards or downwards direction to increase or decrease the stroke length of the operator shaft.

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Номер записи: 10
29-08-2013 дата публикации

FAST SWITCHING HYDRAULIC PILOT VALVE WITH HYDRAULIC FEEDBACK

Номер: US20130220453A1
Автор: George Hal E.
Принадлежит: PARKER-HANNIFIN CORPORATION

Provided is a fast switching hydraulic pilot valve with hydraulic feedback for quickly and accurately switching between opened and closed positions of the hydraulic valve. The hydraulic valve includes a valve body, a valve bore defined by the valve body, a plurality of valve ports extending through the valve body and into the valve bore, and an actuator. Actuation of the actuator allows for movement of the spool to a first position within the valve bore, thereby providing for one of opening or closing the hydraulic valve. Exposure of the spool to a pressure at an end of the spool proximate the actuator allows for movement of the spool to a second position within the valve bore, thereby providing for the other of opening or closing the hydraulic valve. 1. A hydraulic valve comprising:a valve body defining an inner valve bore and a plurality of valve ports in selective fluidic communication with the valve bore;a spool received in the valve bore and moveable between first and second positions for controlling fluidic communication between the valve bore and the plurality of valve ports;an actuator configured to move the spool to the first position within the valve body when the actuator is actuated, wherein the first position allows fluidic communication between a first valve port of the plurality of valve ports and a second valve port of the plurality of valve ports while restricting fluidic communication between the first valve port and a third valve port of the plurality of valve ports; anda chamber disposed at an end of the spool proximate the actuator, a pressure of the chamber causing bias of the spool in a direction of the second position, wherein the second position of the spool restricts fluidic communication between the first and second valve ports while allowing fluidic communication between the first and third valve ports.2. The hydraulic valve of claim 1 , wherein the chamber is in continuous fluidic communication with the first valve port claim 1 , thereby ...

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Номер записи: 11
05-09-2013 дата публикации

EXPANSION VALVE

Номер: US20130227980A1
Автор: Chen Boting, Liu Changqing, Liu Jie, Song Hongmin
Принадлежит:

An expansion valve is disclosed herein and includes a valve body having a chamber; a valve seat and a valve core are provided in the chamber; a first opening and a second opening in communication with the chamber, wherein the valve core moves relative to the valve seat to control a size of a flow channel between the first opening and the second opening, wherein the valve core includes a valve core head portion facing the valve seat, the valve head portion is provided with an axial through hole, a piston is provided in the axial through hole, the piston is connected with the valve body. The piston which is connected with the valve body is provided in the axial through hole of the valve core head portion of the expansion valve. Therefore, fluid pressure may be transmitted to the valve body by the piston, so as to reduce the forces applied on the valve core, and balance the influence of differential pressure between high pressure and low pressure on the valve core more steadily, which in turn can reflect the change in the superheat degree at the outlet of the evaporator truly. 1. An expansion valve , comprising:a valve body having a chamber;a valve seat and a valve core provided in the chamber;a first opening and a second opening in communication with the chamber,wherein the valve core moves relative to the valve seat to control size of a flow channel between the first opening and the second opening,wherein the valve core comprises a valve core head portion facing the valve seat, an axial through hole is provided in the valve core head portion, a piston is provided in the axial through hole, the piston is connected with the valve body.2. The expansion valve according claim 1 , wherein the axial through hole is a constant diameter hole which opens to an end surface of the valve core head portion.3. The expansion valve according to claim 1 , wherein the axial through hole comprises a small-diameter hole which opens to an end surface of the valve core head portion and a ...

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Номер записи: 12
12-09-2013 дата публикации

LATCHING CLUTCH VALVE

Номер: US20130233396A1
Автор: Ari Vural, Lee Brian
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A hydraulic valve for a vehicle transmission includes a housing, a valve piston, an actuating piston, and a bi-stable spring. The housing is connectable with an inlet passage and an outlet passage for the transmission. The valve piston is sealed to the housing and selectively blocks a fluid flow between the inlet passage and the outlet passage. The actuating piston is sealed to the housing and is arranged to be displaceable by a hydraulic pressure in the inlet passage. The bi-stable spring is engaged with the valve piston and the actuating piston. In some example embodiments, the bi-stable spring is axially fixed with regards to the valve piston and displaceable by the actuating piston. 1. A hydraulic valve for a vehicle transmission comprising:a housing connectable with an inlet passage and an outlet passage for the transmission;a valve piston, sealed to the housing, for selectively blocking a fluid flow between the inlet passage and the outlet passage;an actuating piston sealed to the housing and arranged to be displaceable by a hydraulic pressure in the inlet passage; and,a bi-stable spring engaged with the valve piston and the actuating piston.2. The hydraulic valve of wherein the bi-stable spring is axially fixed with regards to the valve piston and is displaceable by the actuating piston.3. The hydraulic valve of wherein an inner diameter of the bi-stable spring is fixed to the valve piston and displaceable in a first direction by the valve piston claim 2 , and an outer diameter of the bi-stable spring is displaceable in the first direction by the actuating piston.4. The hydraulic valve of wherein the bi-stable spring is fixed to the valve piston by a retainer installed in a central bore of the valve piston.5. The hydraulic valve of claim 1 , wherein the housing comprises a valve seat and the valve comprises a return spring operating between the valve seat and the actuating piston.6. The hydraulic valve of wherein the housing comprises a valve seat with a ...

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Номер записи: 13
12-09-2013 дата публикации

DUAL PISTON PNEUMATIC ACTUATOR

Номер: US20130234055A1
Автор: Young Terry Glenn
Принадлежит: Array Holdings, Inc.

Dual piston pneumatic actuators used in opening and closing gate valves are disclosed. The actuators allow for pressure to vary based on opening or closing a gate valve versus keeping the gate valve open or closed. 2. The actuator of claim 1 , further comprising a spring having with a distal end abutting the proximal side of the proximal piston and having a distal end abutting a bonnet ring positioned at the proximal end of the actuator housing; the spring being capable of producing a biasing force opposing axial movement of the operator shaft toward the valve body.3. The actuator of claim 1 , wherein the bonnet has an internal bore with an inward facing wall claim 1 , wherein the packing retainer has a proximal end and an outward facing wall claim 1 , and wherein the proximal end of the packing retainer is situated within the internal bore of the bonnet and wherein the outward facing wall of the packing retainer abuts the inward facing wall of the internal bore of the bonnet.4. The actuator of claim 1 , wherein pressure is provided to both the distal pressure chamber and the proximal pressure chamber to provide an increased force to move both pistons in a proximal direction claim 1 , and wherein the increased force moves the operator shaft to a proximal position claim 1 , thereby moving the gate within the gate valve when the valve is under fluid pressure.5. The actuator of claim 4 , wherein upon depressurization of the distal pressure chamber claim 4 , the operator shaft remains in the proximal position due to pressure from the proximal pressure chamber.6. The actuator of claim 4 , wherein upon depressurization of the proximal pressure chamber claim 4 , the operator shaft remains in the proximal position due to pressure from the distal pressure chamber.7. The actuator of claim 1 , wherein the actuator housing further comprises an inner pressure wall perpendicular to the shaft axis claim 1 , the wall having an interior bore adapted to receive the proximal end of ...

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Номер записи: 14
17-10-2013 дата публикации

VALVE MANIFOLD

Номер: US20130270467A1
Автор: Johnson James G., Johnson John Leslie
Принадлежит:

A valve manifold includes a valve body carrying pairs of laterally spaced piston actuated valves controlled by control modules operative to selectively pressurize and exhaust an outlet port connected to a fluid device and configured in groupings permitting varying valve functionalities. 1. (canceled)2. A valve assembly , comprising:a valve body having a bore including an upper end, a lower end and an intermediate annular valve seat;a first port fluidly connected at one end of the bore and a second port connected at the other end of the bore;a valve member slidably carried by a cover member sealing the bore and moveable between a closed position engaging the valve seat and blocking fluid flow through the second port and an open position permitting fluid flow through the second port, wherein a longitudinal axis of the valve member is coaxial with the first port and the second port, wherein the valve member includes a poppet having a valve stem;a piston member having a flat surface slidably carried in the bore for moving the valve member to the closed position under pressurized conditions, wherein an end of the valve stem is engageable with the flat surface of the piston member; anda control for selectively applying pressurized conditions to the piston member for effecting the closed position and reversely conditioned for removing the pressurized conditions and permit movement of the valve member to the open position by pressure conditions in the lower end of the bore, thereby providing two way valve functionality.3. The valve assembly as recited in wherein the valve stem is received in an opening in the cover member and is supported by the cover member.4. The valve assembly as recited in wherein the valve seat is coaxial with the second port.5. The valve assembly as recited in wherein a pilot pressure line is in fluid communication with the first port.6. The valve assembly as recited in wherein claim 5 , when pilot pressure is applied claim 5 , the piston member moves ...

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Номер записи: 15
07-11-2013 дата публикации

LARGE-SCALE HYDRAULIC VARIABLE-SPEED FLOATING BOX FLAP VALVE

Номер: US20130292589A1
Автор: LI Quanmin, Liu Rungen, Teng Kangle, Xiong Dongliang, YING Jianguo, ZHAI Songmao
Принадлежит: NINGBO JUSHEN PUMPS INDUSTRY CO., LTD.

A large-scale hydraulic variable-speed floating box flap valve includes a hinge support, a valve seat, an upper valve leaf and a lower valve leaf, the valve seat and the hinge support are both fixed on a pump station base. The upper valve leaf is hinge-connected to the hinge support through a pin shaft, and the lower valve leaf is hinge-connected to the upper valve leaf. The upper valve leaf and the lower valve leaf may contact and match the valve seat in a sealed manner through a sealing structure. The upper valve leaf is connected to the lower valve leaf through at least one hydraulic mechanism. The hydraulic mechanism has one end hinge-connected to the upper valve leaf, and the other end hinge-connected to the lower valve leaf. The impact force between the valve leaves and the valve seat is damped by the hydraulic mechanism. 113583151285583587758. A large-scale hydraulic variable-speed floating box flap valve comprises a hinge support () , a valve seat () , an upper valve leaf () and a lower valve leaf () , the valve seat () and the hinge support () are both fixed on a pump station base , the upper valve leaf () is hinge-connected to the hinge support () through a pin shaft() , and the lower valve blade () is hinge-connected to the upper valve leaf (); the upper valve leaf () and the lower valve leaf () may contact and match the valve seat () in a sealed manner through a sealing structure , characterized in that: the upper valve leaf () is connected to the lower valve leaf () through at least one hydraulic mechanism () , the hydraulic mechanism () has one end hinge-connected to the upper valve leaf () , and the other end hinge-connected to the lower valve leaf ().277172737574715737573747572728. The large-scale hydraulic variable-speed floating box flap valve according to claim 1 , characterized in that: the hydraulic mechanism () comprises an upper rack () claim 1 , a lower rack () claim 1 , a cylinder () claim 1 , a piston () and a piston rod (); wherein claim 1 ...

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Номер записи: 16
21-11-2013 дата публикации

DRY PIPE VALVE & SYSTEM

Номер: US20130306333A1
Автор: Golinveaux James E., Ringer Yoram
Принадлежит: Tyco Fire Products LP

A differential control valve and method of operation as a residential dry pipe fluid control valve which provides for a high liquid to gas trip ratio. The valve includes a housing having an interior surface defining an internal chamber with a central axis. The valve further includes a first port; a second port and a third port, each in communication with the internal chamber. A first valve seat is disposed along the interior surface of the housing circumscribed about the central axis and a second valve seat is circumscribed about the first valve seat. A sealing member defines a sealed position and an open position with respect to the valve seats. A spring member biases the seal member toward the open position and is disposed between the sealing member and the interior of the housing. 1. A differential control valve comprising:a housing having an interior surface defining an internal chamber with a central axis;a first valve seat disposed along the interior surface of the housing circumscribed about the central axis;a second valve seat disposed along the interior surface disposed and circumscribed about the first valve seat;a seal member defining a sealed position engaged with the first valve seat and the second valve seat, the seal member further defining an open position axially spaced from the first and second valve seats, the seal member being substantially aligned with the central axis of the housing in each of the sealed and open positions;a first port proximate the first valve seat in communication with the internal chamber, and a second port in communication with the internal chamber, the second port being isolated from the first port when the sealing member is in the sealed position and in fluid communication with the first port when the sealing member is in the open position; andat least one spring member disposed between the interior surface of the housing and the seal member to bias the seal member toward the open position.2. The control valve of claim 1 ...

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Номер записи: 17
06-02-2014 дата публикации

PNEUMATIC CONTROL VALVE AND ASSEMBLING METHOD THEREOF

Номер: US20140034856A1
Автор: IGARASHI Hiroki, Imai Takashi
Принадлежит: Surpass Industry Co., Ltd.

To provide a pneumatic control valve including: a valve body ; a valve opening/closing mechanism section ; a pneumatic control section for the valve opening/closing mechanism that is coupled to the valve element via a piston stem ; a diaphragm that defines a partition between a fluid and the pneumatic control section ; a cylindrical lower stopper that is fixed to the valve body as anti-falling off for the valve element and the diaphragm inserted into a valve chamber , and supports movement of the piston stem ; and a cylindrical upper stopper that is fixed to the valve body as anti-falling off for the piston stem inserted into a piston chamber , and supports movement of the piston stem 1. A pneumatic control valve comprising:a valve body having formed therein a substantially columnar space as a valve chamber and a piston chamber, the substantially columnar space comprising an inflow path and an outflow path for a fluid;a valve opening/closing mechanism section that opens and closes a fluid flow path by vertically moving a valve element within the valve chamber;a pneumatic control section that is coupled to the valve element via a piston stem to work as an opening/closing actuator for the valve opening/closing mechanism;a diaphragm that is coupled to the valve element on an inner circumferential side of the valve element to define a partition between a fluid and the pneumatic control section within the valve chamber;a cylindrical lower stopper that is inserted from an upper opening as anti-falling off for the valve element and the diaphragm inserted into the valve chamber from the upper opening, is fixed to the valve body, and works as a lower guide to support movement of the piston stem; anda cylindrical upper stopper that is inserted from the upper opening as anti-falling off for the piston stem inserted into the piston chamber from the upper opening, is fixed to the valve body, and works as an upper guide to support movement of the piston stem.2. The pneumatic ...

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Номер записи: 18
20-03-2014 дата публикации

FLUID CONTROL VALVE

Номер: US20140077109A1
Автор: Miyashita Michio, NAKAMURA Yukie
Принадлежит: CKD CORPORATION

In a fluid control valve, a valve part houses a diaphragm in a valve body including a valve seat, first and second ports, and a drive part includes a piston dividing a piston chamber in a cylinder body into first and second chambers, and a rubber sealing member attached to the outer peripheral surface of the piston. A constriction is provided between the piston chamber and the surface of the cylinder body contacting the valve body. The cylinder body is formed with an exhaust port communicating with the first chamber, an operation port communicating with the second chamber, and a purge port communicating with a fluid non-contact chamber. The piston is formed with a flow path which enables communication between the first chamber and the fluid non-contact chamber. Accordingly, a temperature increase of the drive part can be restricted, and degradation of internal parts can be prevented. 1. A fluid control valve including a valve section for controlling fluid and a drive section for imparting a drive force to the valve section , wherein a valve body formed with a first port and a second port;', 'a valve seat provided between the first port and the second port; and', 'a diaphragm movable into or out of contact with the valve seat, the drive section includes:', 'a cylinder body provided with a piston chamber and clamping the diaphragm with respect to the valve body;', 'a piston slidably mounted in the piston chamber to divide the piston chamber into a first chamber and a second chamber and connected to the diaphragm; and', 'a rubber sealing member mounted on sliding-contact surfaces of the piston and the cylinder body,, 'the valve section includesthe cylinder body includes a constriction to reduce a cross sectional area of a portion between the piston chamber and a surface contacting the valve body,the cylinder body is formed with an air exhaust port communicating with the first chamber, an operation port communicating with the second chamber to supply operation air to ...

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Номер записи: 19
05-01-2017 дата публикации

DIRECTIONAL CONTROL VALVE

Номер: US20170002937A1
Автор: YOSHIDA Futoshi
Принадлежит: KYB Corporation

In a directional control valve, working fluid to be supplied to a first pressure chamber is supplied to the first pressure chamber via a hydrostatic bearing provided on an end of a main spool on the first pressure chamber side, and working fluid to be supplied to a second pressure chamber is supplied to the second pressure chamber via a hydrostatic bearing provided on an end of the main spool on the second pressure chamber side, and a pilot valve alternately communicates the first pressure chamber and the second pressure chamber with a tank. 1. A directional control valve comprising: a main valve configured to switch a direction in which working fluid flows; and a pilot valve configured to switch the main valve by pilot pressure , whereinthe main valve comprises:a supply port configured to be supplied with working fluid from a pressure source;a first main valve control port and a second main valve control port, each configured to supply and discharge working fluid outside;a main spool disposed movably in an axial direction, the main spool being configured to communicate the supply port with the first main valve control port when moved to one side, the main spool being configured to communicate the supply port with the second main valve control port when moved to the other side; anda first pressure chamber and a second pressure chamber formed on either side of the main spool in the axial direction and configured to be supplied with working fluid from the pressure source,working fluid supplied from the pressure source to the first pressure chamber is supplied to the first pressure chamber via a hydrostatic bearing provided on an end of the main spool on the first pressure chamber side,working fluid supplied from the pressure source to the second pressure chamber is supplied to the second pressure chamber via a hydrostatic bearing provided on an end of the main spool on the second pressure chamber side, andthe pilot valve makes the first pressure chamber and the second ...

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Номер записи: 20
04-01-2018 дата публикации

ROTARY ACTUATOR

Номер: US20180003198A1
Автор: Jurczyk Krzysztof
Принадлежит:

An actuator comprising a housing, a piston driven member axially movable within the housing and being coupled to the housing by a first pin and ramp coupling such that axial movement of the piston driven member relative to the housing is accompanied by angular movement of the piston driven member relative to the housing. The actuator includes an output member constrained against axial movement relative to the housing and coupled to the piston driven member by a second pin and ramp coupling such that both axial and angular movement of the piston driven member drive the output member for angular movement relative to the housing. 1. An actuator comprising a housing , a piston driven member axially movable within the housing and being coupled to the housing by a first pin and ramp coupling such that axial movement of the piston driven member relative to the housing is accompanied by angular movement of the piston driven member relative to the housing , and an output member constrained against axial movement relative to the housing and coupled to the piston driven member by a second pin and ramp coupling such that both axial and angular movement of the piston driven member drive the output member for angular movement relative to the housing.2. An actuator according to claim 1 , wherein the first pin and ramp coupling comprises a pin associated with one of the piston driven member and the housing cooperable within a helical or part helical formation associated with the other of the piston driven member and the housing.3. An actuator according to claim 2 , wherein the pin is provided on the housing and the helical formation is provided on the piston driven member.4. An actuator according to claim 2 , wherein the helical formation comprises a helical groove or slot.5. An actuator according to claim 1 , wherein the second pin and ramp coupling comprises a pin associated with one of the piston driven member and the output member cooperable within a helical or part helical ...

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Номер записи: 21
04-01-2018 дата публикации

PISTON SENSOR WITH BAFFLE PLATE

Номер: US20180003311A1
Автор: Larsen Todd W., Renollett Jacob T. R.
Принадлежит: TESCOM CORPORATION

A valve assembly includes a sensing cavity and a piston cavity defined in valve body and/or in a bonnet. A piston head of a piston may be disposed within the piston cavity, and a piston stem has an end portion in contact with valve plug. A baffle plate has a first surface defining a portion of the sensing cavity and a second surface defines a portion of the piston cavity. The baffle plate includes at least one baffle aperture such that the sensing cavity is in fluid communication with the piston cavity, and pressure in the sensing cavity acts on a surface of the piston head to displace the piston and the valve plug between an open and closed position. The at least one baffle aperture is adapted to restrict the flow of fluid between the sensing cavity and the first working volume. 1. A valve assembly comprising:a valve body having an inlet, an outlet, and a valve seat disposed between the inlet and outlet;a valve plug movably disposed within a body cavity defined in the valve body, the body cavity being disposed between the inlet and the outlet, the valve plug displaceable along a body axis between a closed position in which a sealing surface of the valve plug sealingly engages a sealing surface of the valve seat and a fully-open position in which the sealing surface of the valve plug is offset from the sealing surface of the valve seat;a sensing cavity defined in the valve body or in a bonnet coupled to the valve body;a piston cavity defined in the valve body or in the bonnet coupled to the valve body, the piston cavity extending from a first end to a second end along the body axis, the piston cavity being partially defined by a cavity side wall that extends from the first end to the second end of the piston cavity;a piston having a piston head disposed within the piston cavity, the piston head having a first surface and a second surface, the piston head sealingly engaging the cavity side wall of the piston cavity, wherein a first working volume is defined by the ...

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Номер записи: 22
04-01-2018 дата публикации

A PUMP AND A VALVE ASSEMBLY THEREFOR

Номер: US20180003314A1
Автор: HU Mengxi, JIA Ping, YU Mengjin, Zhang He
Принадлежит:

A pump comprises a housing () having a cavity () with an inlet valve (), an apparatus () for raising fluid pressure in the cavity () and a discharge valve (), the discharge valve () comprises a valve head () movable between an open and closed position and a valve seat (), wherein the pump further comprises a booster piston () arranged in a booster cylinder (), the booster piston () has a first face () exposed to a low pressure zone () and a second face () exposed to fluid pressure in the cavity (), and at least one of the booster piston () and the booster cylinder () is movable relative to the other to add an opening force to the discharge valve. The pump is preferably a mud pump for circulating drilling mud through a drill string in a wellbore or a cement pump which may be of the type for pumping cement into a wellbore. Also disclosed is a method for facilitating opening a valve comprising a valve head () and a valve seat (), the valve head () is movable a predetermined distance from a closed position on the valve seat () to a fully open position distant on the valve seat, and the method comprises the step of adding a force to the valve head () along a small portion of the predetermined distance. 1. A pump comprising a housing having a cavity with an inlet valve , an apparatus for raising pressure in a fluid in the cavity and a discharge valve , the discharge valve comprising a valve head movable between an open and closed position and a valve seat wherein the pump further comprises a booster piston arranged in a booster cylinder , the booster piston having a first face exposed to a low pressure zone and a second face exposed to fluid pressure in said cavity , at least one of said booster piston and said booster cylinder movable relative to the other to add an opening force to the discharge valve.2. A pump as claimed in further comprising a transfer member arranged between the valve head and the booster.3. A pump as claimed in wherein the transfer member has a ...

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Номер записи: 23
02-01-2020 дата публикации

METHOD OF CONTROLLING A THREE-POSITION SLIDE VALVE

Номер: US20200003332A1
Автор: ERNIS Sébastien, JUBERT Xavier, Leclerc Xavier
Принадлежит: SAFRAN LANDING SYSTEMS

A method of controlling a hydraulic valve includes putting a first control chamber under pressure and putting a second control chamber to return so as to cause a slide to move into one of two end positions, putting a second control chamber under pressure and putting the first control chamber to return, thereby causing the slide to move into the other one of the two end positions. An intermediate step of applying pressure to the one of the first or second control chamber that was connected to return can be provided so that both control chambers are maintained simultaneously under pressure for a determined length of time. 1. A method of controlling a hydraulic valve having a feed port , a return port , a first service port , a second service port , a slide that is movably mounted in a cylinder to move between two end positions , in one of which end positions the slide puts the feed port into communication with one of the first or second service ports and the return port into communication with the other of the first or second service ports , and in the other end position the slide puts at least that one of the first and second service ports which was in communication with the return port into communication with the feed port , the slide being configured to return by centering springs towards a stable central position in which the hydraulic valve puts the return port into communication with one of the first and second service ports , the cylinder defining a first and a second control chamber for controlling the slide , the method comprising:putting the first control chamber under pressure and putting the second control chamber to return so as to cause the slide to move into one of the two end positions;putting the second control chamber under pressure and putting the first control chamber to return, thereby causing the slide to move into the other one of the two end positions; andan intermediate step of applying pressure to the second control chamber that was connected ...

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Номер записи: 24
03-01-2019 дата публикации

TWO-WAY TWO POSITION IN-LINE VALVE

Номер: US20190003612A1
Автор: Wager Gebhard Charles
Принадлежит:

A two-way, two position, in-line valve, for controlling fluid flow through a line in both directions. The valve includes a tubular conduit defining a bore there-through to communicate fluid flow from the line and through the bore of the tubular conduit, a piston sized to slide along the bore, a stop in the bore having an annular seal supported on the stop in opposed facing relation to a first face of the piston, a resilient spring mounted in the bore so as to bear against a second face of the piston, opposite the first face, and to thereby resiliently urge the first face of the piston against the seal, and a selectively retracting latching mechanism adapted to index the piston between open and closed positions as in-line modulated pressure is applied to the piston. 1. A two-way , two position valve for mounting in-line , in a pressurized fluid line , comprising:a tubular conduit defining a bore there-through to communicate fluid flow from the line and through the bore of the tubular conduit,a piston sized to slide along the bore,a stop in the bore, having an annular seal supported on the stop in opposed facing relation to a first face of the piston,a resilient spring mounted in the bore so as to bear against a second face of the piston, opposite the first face, and to thereby resiliently urge the first face of the piston against the seal, anda selectively retractable latching mechanism adapted to index the piston between open and closed positions as in-line modulated fluid pressure is applied to the piston.2. The valve of claim 1 , wherein the retracting latching mechanism comprises a cam surface and cam follower cooperating between side walls of the piston and bore claim 1 , thereby causing:(a) a first rotation of the piston relative to the bore caused by a fluid flow pressure in the bore acting on the first face of the piston so as to resiliently bias the piston, against a returning biasing force of the spring, into the open position wherein fluid flow passes ...

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Номер записи: 25
02-01-2020 дата публикации

Pressure Regulating Valve with Multi-Faced Piston and Fluid Boost Chamber

Номер: US20200004274A1
Автор: Carroll G. Rowe
Принадлежит: Individual

A pressure regulator includes a piston assembly having a primary piston, secondary piston, and valve seat positioned inside an internal chamber divided into a primary chamber and a secondary chamber, such that the primary piston and valve seat are positioned inside the primary chamber and the secondary piston is positioned inside the secondary chamber, where the piston assembly moves longitudinally along the axis of the internal chamber in response to the pressures exerted on the primary piston and valve seat by a working liquid flowing into the primary chamber, and where a supplemental fluid is selectively introduced into the secondary chamber to exert a force on the secondary piston to modify the longitudinal movement of the piston assembly and thereby regulate flow of the working fluid through the primary chamber.

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Номер записи: 26
11-01-2018 дата публикации

PRESSUR REGULATOR

Номер: US20180010706A1
Автор: GROSS Ekkehard, MARKESIC Robert, REININGER Dennis
Принадлежит:

A pressure regulator has a housing with an inlet, an outlet and a valve seat. A regulator sleeve is arranged within the housing and defines a flow channel from an upstream end adapted for cooperating with the valve seat towards a downstream end associated with the outlet. A spring biases the regulator sleeve towards the outlet. The downstream end of the flow channel tapers outwardly. 1. A pressure regulator having a housing with an inlet , an outlet and a valve seat , a regulator sleeve arranged within the housing and defining a flow channel from an upstream end adapted for cooperating with the valve seat towards a downstream end associated with the outlet , a spring biasing the regulator sleeve towards the outlet , the downstream end of the flow channel tapering outwardly.2. The pressure regulator of wherein a taper is provided at the upstream end of the regulator sleeve.3. The pressure regulator of wherein a guiding flange is provided at the downstream end of the regulator sleeve claim 1 , the guiding flange being provided with a seal adapted for sliding within the housing.4. The pressure regulator of wherein the spring abuts at the guiding flange.5. The pressure regulator of wherein a guiding insert is provided at the upstream side of the housing claim 1 , the guiding insert being associated with a seal adapted for slidably contacting the regulator sleeve.6. The pressure regulator of wherein the spring abuts at the guiding insert.7. The pressure regulator of wherein the housing is formed from a hollow body closed by a cover piece.8. The pressure regulator of wherein the cover piece accommodates the guiding insert.9. The pressure regulator of wherein the valve seat is provided with a sealing insert.10. The pressure regulator of wherein the housing is provided with an external thread at the inlet and the outlet claim 1 , respectively.11. Water supply system for a recreational vehicle claim 1 , comprising a water tank claim 1 , a water pump claim 1 , the pressure ...

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Номер записи: 27
10-01-2019 дата публикации

CONTROL SYSTEM FOR ACTUATING DRILL PIPE RACK

Номер: US20190010769A1
Автор: Demick Christopher J., Hudson Charles Taylor, Shanmugam Yuvaraj
Принадлежит: Caterpillar Global Mining Equipment LLC

A control system for actuating a drill pipe rack is provided. The drill pipe rack moves between a first position and a second position. The control system includes a first actuator to actuate a top end of the drill pipe rack and a second actuator to actuate a bottom end of the drill pipe rack. The control system includes a pump to supply pressurized fluid to the first actuator and the second actuator. The control system further includes at least one volumetric flow divider in fluid communication with the pump. The volumetric flow divider is configured to supply equal volumetric quantity of the pressurized fluid to the first actuator and the second actuator, and subsequently move the drill pipe rack between the first position and the second position. 1. A control system for actuating a drill pipe rack , the drill pipe rack adapted to move between a first position and a second position , the control system comprising:a first actuator adapted to actuate a top end of the drill pipe rack;a second actuator adapted to actuate a bottom end of the drill pipe rack;a pump configured to supply pressurized fluid to the first actuator and the second actuator; andat least one volumetric flow divider fluidly coupled to the pump, wherein the volumetric flow divider is configured to supply equal volumetric quantity of the pressurized fluid to the first actuator and the second actuator, and subsequently move the drill pipe rack between the first position and the second position.2. The control system of claim 1 , wherein the at least one volumetric flow divider includes a first volumetric flow divider and a second volumetric flow divider.3. The control system of claim 2 , wherein the first volumetric flow divider supplies pressurized fluid to the first and second actuators to extend the first and second actuators claim 2 , and subsequently move the drill pipe rack to the first position.4. The control system of claim 2 , wherein the second volumetric flow divider supplies pressurized ...

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Номер записи: 28
09-01-2020 дата публикации

PARTIAL STROKE TESTS FOR SHUTDOWN VALVES

Номер: US20200011451A1
Автор: Junk Kenneth W.
Принадлежит:

To generate a setpoint signal to stroke a valve during a partial-stroke test, a first target is determined for the setpoint signal based at least on a travel displacement threshold, the travel displacement threshold corresponding to a desired extent of travel of the valve during the partial-stroke test; the setpoint signal is ramped from an initial value to the first target, during a first time interval; subsequently to the first time interval, the setpoint signal is maintained at the first target during a second time interval; a second target is determined for the setpoint signal based at least on the initial value; and during a third time interval subsequent to the second interval, the setpoint signal is ramped from the first target to the second target in a direction opposite to the ramping of the setpoint signal during the first time interval. 1. A method for detecting a stuck valve condition during a partial-stroke test of an shutdown valve , the method comprising:receiving a signal indicative of actuator pressure when the valve travels between an end point and a displaced position from the end point; anddetermining whether the actuator pressure is within a set of acceptance criteria during the partial-stroke test, the criteria including:(i) a minimum actuator pressure when the valve travels between the end point and the displaced position;(ii) a maximum actuator pressure when the valve travels between the displaced position and the end point, and(iii) a breakout pressure when the valve travels between the a stop threshold position and a valve stop position, the breakout pressure corresponding to a force required to break out of a hard stop.2. The method of claim 1 , wherein determining whether the actuator pressure is within the set of acceptance criteria includes not placing an upper limit on the actuator pressure when the valve travels between the stop threshold position and the valve seat position.3. A system comprising:a shutdown valve configured to ...

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Номер записи: 29
15-01-2015 дата публикации

CHANGE-OVER VALVE

Номер: US20150013805A1
Автор: TERAO Takeshi
Принадлежит:

A change-over valve comprises a spool housed in a spool housing, and a pilot chamber facing at least an end of the spool. An axial passage is formed in the spool along the axial direction. While being connected to a pilot chamber, the axial passage communicates with a tank passage via a small hole having an opening on an outer periphery of the spool in accordance with displacement of the spool, to discharge the air in the pilot chamber to the tank passage. Since the axial passage is formed at a location offset from a center axis of the spool, a length of the small hole is shortened and the small hole is easily processed. 1. A change-over valve , comprising:a spool housing;a spool housed in the spool housing so as to be free to slide, the spool having a center axis;a pilot chamber facing an end of the spool;an axial passage formed in the spool at a location offset from the center axis so as to be connected to the pilot chamber;a small hole connected to the axial passage and having an opening on an outer periphery of the spool; anda passage formed in the spool housing to connect the small hole to a tank in a predetermined sliding position of the spool with respect to the spool housing.2. The change-over valve according to claim 1 , wherein the small hole is formed along a direction perpendicular to the center axis.3. The change-over valve according to claim 1 , wherein the predetermined sliding position corresponds to a full-stroke position of the spool.4. The change-over valve according to claim 1 , wherein the axial passage is formed in parallel with the center axis.5. The change-over valve according to claim 1 , wherein the spool has a projection projecting axially in the pilot chamber and is supported by a spring accommodated in the pilot chamber via a spring seat fitted onto an outer periphery of the projection such that the axial passage and the pilot chamber communicate via a slide clearance between the outer periphery of the projection and the spring seat.6. ...

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Номер записи: 30
09-01-2020 дата публикации

Filter-included energy-saving large-capacity direct-acting precision pressure regulation valve

Номер: US20200012300A1
Автор: Chih-Sheng Cheng, Ping-Cheng Yu
Принадлежит: Taiwan Chelic Corp

A filter-included energy-saving large-capacity direct-acting precision pressure regulation valve includes a main body that is formed of a pressure regulation seat, a pressure regulation filter valve, and a protective cap arranged in sequence from top to bottom. The pressure regulation filter valve includes a main channel through which a primary side pressure and a secondary side pressure may flow. The main channel includes a primary valve port and a secondary valve port arranged therein for controlling and regulating the secondary side pressure and flow in a stage-wise manner. A flowrate straight rod assembly includes a straight rod fit to a pressure plunger ring. A straight rod spherical seat and a straight rod holder are coupled to an upper section of the straight rod and a secondary valve port spring supports a lower section of the straight rod. The pressure plunger ring is supported on a primary valve port the spring.

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Номер записи: 31
03-02-2022 дата публикации

PROPORTIONAL VALVE

Номер: US20220034410A1
Автор: Bürßner Jörg, Vincon Peter
Принадлежит: ETO MAGNETIC GMBH

An electromagnetic and pilot-operated proportional valve with a valve slide unit () mounted in a valve housing () so as to be movable along an axial direction, which unit can be driven by an electromagnetic actuator assembly () provided at one axial end for the pilot-operated opening of a useful fluid inlet and/or outlet () of the valve housing as a response to energisation of a stationary coil () of the actuator assembly and interacts with mechanical force storage means (), more particularly is held in an unenergised stable axial position in the valve housing by said means, wherein the valve slide unit having a closure section () extending radially from one body section () of the valve slide unit () for sealing interaction with the useful fluid inlet or outlet () formed on a circumferential inner wall of the housing () interacts axially at one end, by means of the preferably cylindrical and/or coaxially extending body section (), with a stationary guide section () of the valve housing to form an axial sliding bearing () and, at the other end, is mounted with radial play (), wherein preferably ring-shaped sealing means () seal a circumferential section of the body section with radial play to the circumferential inner wall of the valve housing. 11210. An electromagnetically and pilot-operated proportional valve having a valve slide unit () mounted in a valve housing () so as to be movable along an axial direction ,{'b': 12', '16', '24, 'the valve slide unit () being drivable by an electromagnetic actuator assembly () provided at one axial end for the pilot-operated opening of a useful fluid inlet and/or outlet () of the valve housing in response to an energization of stationary coil means of the actuator assembly'}{'b': 48', '50, 'and interacting with mechanical force storage means (, )'}wherein{'b': 22', '30', '12', '24', '10', '40', '30, 'the valve slide unit which has a closure section () which extends in the radial direction from a body section () of the valve ...

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Номер записи: 32
19-01-2017 дата публикации

A FLUID FLOW SYSTEM AND METHOD

Номер: US20170016214A1
Автор: GAL Alon, HERTZ Lior, RAVID Shay
Принадлежит:

A fluid flow system comprising a supply line, a fluid control unit and at least one end user; wherein fluid flow through the system is facilitated only upon a certified verification signal generated by the end-user and certifying said verification signal by the fluid control unit. 118.-. (canceled)19. A fluid flow system , comprising:a supply line;a fluid control unit; andat least one end user,wherein fluid flow through the system is facilitated only upon a certified verification signal generated by the end-user and certifying said verification signal by the fluid control unit.20. The fluid flow system according to claim 19 , wherein the verification signal is generated responsive to a query signal generated by the fluid control unit.21. The fluid flow system according to claim 19 , further comprising a valve claim 19 , wherein at the absence of a certified verification signal the control unit is configured for generating a shutoff signal to the valve to terminate fluid flow to the end-user.22. The fluid flow system according to claim 20 , wherein a first one of the query signal and the verification signal is generated upon fluid consumption through the fluid flow system.23. The fluid flow system according to claim 20 , wherein either one or both of the query signal and the verification signal are a recognizable sequence of flow pulsations through the fluid.24. The fluid flow system according to claim 20 , wherein either one or both of the query signal and the verification signal are a recognizable acoustic signal over a piping of the fluid flow system.25. The fluid flow system according to claim 20 , wherein either one or both of the query signal and the verification signal are a recognizable acoustic signal generated by a signal generator configured for generating a respective signal claim 20 , and transmitting it claim 20 , through a communication arrangement claim 20 , to a receiver configured at the either or both the end-user and the fluid control unit claim ...

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Номер записи: 33
19-01-2017 дата публикации

Valve Device for Controlling and Adjusting Fluid Passage

Номер: US20170016544A1
Автор: CHIBA Yasuhiro, MEGURO Toshikatsu
Принадлежит:

A valve device for controlling passage of fluid in a flow system or part thereof comprising a diaphragm valve comprising a diaphragm and a diaphragm seat, the diaphragm valve is configured for controlling the passage of the fluid by being pressable towards and away from the seat; at least one laterally movable element having part thereof engaging the diaphragm for operating the diaphragm valve; an actuator for actuating the laterally movable element; an adjustment element configured for adjustment of lateral movement span of the laterally movable element by adjusting a relative position thereof; and at least one locking mechanism for locking the adjusted relative position of the adjustment element. The lateral movement span of the laterally moveable element determines the maximal distance between the diaphragm and the seat, which determines the throughput of the valve device. 1. A valve device for controlling passage of fluid in a flow system or part thereof , said valve device comprising:a) a diaphragm valve comprising a diaphragm and a diaphragm seat, said diaphragm valve is configured for controlling the passage of the fluid by being pressable towards and away from said seat;b) at least one laterally movable element having part thereof engaging said diaphragm for operating said diaphragm valve;c) an actuator for actuating said at least one laterally movable element;d) at least one adjustment element configured for adjustment of lateral movement span of said at least one laterally movable element by adjusting a relative position thereof; ande) at least one locking mechanism for locking the adjusted relative position of said at least one adjustment element,wherein the lateral movement span of said at least one laterally moveable element determines the maximal distance between said diaphragm and said seat, which determines the throughput of said valve device.2. The valve device according to claim 1 , wherein said diaphragm seat is located between an inlet and/or an ...

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Номер записи: 34
19-01-2017 дата публикации

PNEUMATIC MIXING VALVE

Номер: US20170016555A1
Автор: Franconi Robert
Принадлежит: HONEYWELL INTERNATIONAL INC.

A pneumatic mixing valve is provided, which includes a housing that defines a first inlet, a second inlet and an outlet. The first inlet is coupled to a first fluid source and the second inlet is coupled to a second fluid source. The housing defines a first chamber and a second chamber. The pneumatic mixing valve includes a mixing system. The mixing system includes a piston that is movable by at least one of the first fluid and the second fluid. The housing defines a fluid passageway that extends from near the first inlet to the second chamber and the pneumatic mixing valve includes an actuator that is movable between a first position and a second position. In the first position, the fluid passageway is closed such the outlet is open, and in the second position, the fluid passageway is open such that the outlet is closed. 1. A pneumatic mixing valve comprising:a housing that defines a first inlet, a second inlet and an outlet, the first inlet adapted to be coupled to a first fluid source and the second inlet adapted to be coupled to a second fluid source;the housing defining a first chamber fluidly separated from a second chamber, the first chamber in fluid communication with the first inlet, the second inlet and the outlet;a mixing system at least partially disposed in the first chamber, the mixing system including a piston that is movable by at least one of the first fluid and the second fluid;the housing defining a fluid passageway that extends from near the first inlet to the second chamber; andan actuator that is movable between a first position and a second position, and in the first position the fluid passageway is closed such the outlet is open, and in the second position, the fluid passageway is open such that the outlet is closed.2. The pneumatic mixing valve of claim 1 , wherein the first chamber comprises a mixing chamber spaced apart from a positioning chamber.3. The pneumatic mixing valve of claim 1 , wherein the mixing system further comprises a ...

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Номер записи: 35
18-01-2018 дата публикации

Differential Pressure Regulating Shut-Off Valve

Номер: US20180017977A1
Автор: Hielkema Jerry Dean
Принадлежит:

Provided is a valve assembly system including a flowbody including a channel formed at an inner surface thereof, a butterfly plate disposed within the channel and rotatably mounted within the flowbody. The system also includes a pair of dual-sided pistons that receive differential pressure at an input side and an output side of the valve assembly system. A spring is controlled for biasing against at least one of the dual-sided pistons based on the differential pressure, and to rotate the butterfly plate to regulate the differential pressure and the valve assembly system to a predetermined output pressure. 1. A valve assembly system comprising:a flowbody including a channel formed at an inner surface thereof;a butterfly plate disposed within the channel and rotatably mounted within the flowbody;a pair of dual-sided pistons configured to receive differential pressure at an input side and an output side of the valve assembly system; anda spring controlled for biasing against at least one of the dual-sided pistons responsive to the differential pressure;wherein the spring is configured to rotate the butterfly plate to regulate the differential pressure and the valve assembly system to a predetermined output pressure.2. The valve assembly system of claim 1 , further comprising a shaft connected to the butterfly plate and between the pair of dual-sided pistons claim 1 , wherein the spring is mounted to the shaft.3. The valve assembly system of claim 1 , further comprising a valve connected at an input and output side of each dual-sided piston and configured to receive input pressure and to regulate the differential pressure received at each dual-sided piston.4. The valve assembly system of claim 1 , wherein input pressure and output pressure are transferred directly to respective sides of each dual-sided piston and balance against the spring.5. The valve assembly system of claim 3 , wherein the valve comprises a spool-type valve.6. The valve assembly system of claim 4 , ...

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Номер записи: 36
17-04-2014 дата публикации

SELF-REGULATED COMPACT-GEOMETRY VALVE ASSEMBLY

Номер: US20140103244A1
Автор: BEUCHER STEPHANE, DEGRAEVE JEREMY, Magori Erhard, WEUGUE WILLIAM
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A self-regulated valve assembly contains a valve body which, in the lower part, has an input section for a connection to a tank intended to contain a fluid under pressure and, in the upper part, an output for connection to a pipe system. A piston is movable in the valve body along a first axis between an open position, enabling the fluid to communicate between the input section and the output, and a closed position. A spring type module is coupled to the piston and to the valve body and interacts dynamically with the piston at least after an actuation of the valve and during the entire cycle of self-regulation of the valve, imposing a positioning of the piston between its open and closed position. The spring type module is positioned beneath the lower sealing section of the piston and the dimensions of the valve assembly can be considerably reduced. 1. A self-regulated valve assembly , comprising:a valve body having a lower part with an input section for a connection to a tank intended to contain a fluid under pressure and, an upper part with an output for connection to a pipe system;a piston movable in said valve body along a first axis between an open position enabling the fluid to communicate between said input section and said output, and a closed position cutting off the fluid communication, said piston having an upper end section and a lower sealing section; anda spring type module coupled to said piston and to said valve body and interacting dynamically with said piston at least after an actuation of the valve assembly and during an entire cycle of self-regulation of the valve assembly, imposing a positioning of said piston between the open position and the closed position, allowing fluid communication between said input section and said output under a controlled output pressure, said spring type module positioned beneath said lower sealing section of said piston.2. The valve assembly according to claim 1 , wherein said spring type module can be inserted into ...

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Номер записи: 37
22-01-2015 дата публикации

PNEUMATICALLY DRIVEABLE VALVE ACTUATOR AND METHOD OF LOCKING A VALVE CLOSURE ELEMENT RELATIVE TO A VALVE BODY

Номер: US20150020897A1
Автор: Aldmo Karsten, Lundqvist Per
Принадлежит:

The present disclosure provides a pneumatically drivable actuator for setting a position of a valve closure element in a valve, comprising a piston, which is moveable in a pressure chamber by influence of a drive gas, and a locking mechanism for mechanically locking the piston relative to the pressure chamber. The actuator further comprises a ventilation device for venting the drive gas from the pressure chamber while the piston is mechanically locked relative to the pressure chamber, such that pressurization of the pressure chamber is prevented. 1. A pneumatically drivable actuator for setting a position of a valve closure element in a valve , comprising:a piston, which is moveable in a pressure chamber by influence of a drive and gas;a locking mechanism for mechanically locking the piston relative to the pressure chamber;a first connector element, connected to the piston, extending axially from the piston through an axial cylinder wall at least partly forming or enclosing the pressure chamber, presenting a connector which that is accessible from outside the cylinder, and presenting, or forming part, of a ventilation channel forming part of the a ventilation device;a second connector element, which is directly or indirectly connectable to the wall; andthe locking mechanism comprising a locking device, which is connectable to the first connector element and to the second connector element, such that relative movement between the piston and the pressure chamber is prevented in at least one direction;characterized bya ventilation device for venting the drive gas from the pressure chamber while the piston is mechanically locked relative to the pressure chamber, such that pressurization of the pressure chamber is prevented,wherein the first connector element comprises, or forms part of, a channel forming part of the ventilation device.2. The actuator as claimed in claim 1 , further comprising a transmission device claim 1 , for transmitting a movement of the piston to ...

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Номер записи: 38
21-01-2021 дата публикации

Membraneless fluidic devices

Номер: US20210018102A1
Автор: Andrew Arthur Stanley, Casey Glick, Erik Samuel Roby, Serol Turkyilmaz
Принадлежит: Facebook Technologies LLC

Example devices include a fluidic device, such as a fluidic valve, including a body formed from a rigid body material including a fluidic source, a fluidic drain, and a fluidic gate, each of which may have a fluid connection with a chamber, or a portion thereof. The device may further include a gate transmission element, located within the chamber, that is controllable between at least a first position and a second position using a gate pressure received through the fluidic drain. Adjustment of the position of the gate transmission element may allow control of fluid flow through the device. Other devices, methods, systems, and computer-readable media are also disclosed.

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Номер записи: 39
10-02-2022 дата публикации

Valve

Номер: US20220040714A1
Автор: LARSEN Ole-Morten, Rodrigues Jose, Soyland Gunnar, Trydal Jakob
Принадлежит:

A valve for controlling a flow of process fluid, the valve including a housing; a shaft having a closing member, the shaft being received in the housing, and arranged to move axially relative to the housing; an outer seal arrangement for preventing process fluid from entering the housing, the outer seal arrangement including at least one dynamic radial outer seal enclosing the shaft; an inner seal arrangement, axially spaced from the outer seal arrangement along the shaft, the inner seal arrangement including at least one dynamic radial inner seal enclosing the shaft; and a buffer liquid chamber containing buffer liquid, the buffer liquid chamber being configured to provide buffer liquid to the shaft, and being arranged between, and sealingly closed by, the outer seal arrangement and the inner seal arrangement. 1. A valve for controlling a flow of process fluid , the valve comprising:a housing;a shaft having a closing member, the shaft being received in the housing, and arranged to move axially relative to the housing between a closed position for closing a process fluid passage by means of the closing member, and an open position for opening the process fluid passage by means of the closing member;an outer seal arrangement for preventing process fluid from entering the housing, the outer seal arrangement including at least one dynamic radial outer seal enclosing the shaft;an inner seal arrangement, axially spaced from the outer seal arrangement along the shaft, the inner seal arrangement including at least one dynamic radial inner seal enclosing the shaft; anda buffer liquid chamber containing buffer liquid, the buffer liquid chamber being configured to provide buffer liquid to the shaft, and being arranged between, and sealingly closed by, the outer seal arrangement and the inner seal arrangement.2. The valve according to claim 1 , wherein the buffer liquid chamber has a fixed volume.3. The valve according to claim 1 , wherein the buffer liquid is substantially ...

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Номер записи: 40
26-01-2017 дата публикации

VALVE ASSEMBLY WITH TWO SPOOL VALVES

Номер: US20170023138A1
Автор: Hartwig Johannes, Van An Vu
Принадлежит:

A valve assembly includes a first spool valve that directs fluid to a working object. A second spool valve directs fluid to the exhaust. 1. A valve assembly comprising:a first spool valve that directs fluid to a working object; anda second spool valve that directs fluid to the exhaust.2. The valve assembly as recited in wherein the first spool valve includes a first spool valve first port claim 1 , a first spool valve second port claim 1 , a first spool valve third port claim 1 , a first spool valve fourth port claim 1 , and a first spool valve fifth port claim 1 , and the second spool valve include a second spool valve first port claim 1 , a second spool valve second port claim 1 , a second spool valve third port claim 1 , a second spool valve fourth port claim 1 , and a second spool valve fifth port claim 1 , wherein the first spool valve first port and the second spool valve first port define a port A claim 1 , the first spool valve second port and the second spool valve second port define a port B claim 1 , the first spool valve third port and the second spool valve third port define a port C claim 1 , the first spool valve fourth port and the second spool valve fourth port define a port D claim 1 , and the first spool valve fifth port and the second spool valve fifth port define a port E.3. The valve assembly as recited in wherein the first spool valve and the second spool valve are activated simultaneously by a first pneumatic control cylinder and a second pneumatic control cylinder claim 1 , respectively that each supply a first supply of pilot air and a second supply of pilot air claim 1 , respectively.4. The valve assembly as recited in wherein the first pneumatic control cylinder includes a first spool valve wall claim 3 , and a first spool valve first piston is located in a first spool valve first compartment on one side of the first spool valve wall and a first spool valve second piston is located in a first spool valve second compartment on an opposing ...

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Номер записи: 41
26-01-2017 дата публикации

TRANSMISSION ELEMENT DEVICE FOR TWO-WAY TIMING

Номер: US20170023143A1
Автор: BEREZNAI Jósef
Принадлежит: BERY INTELLECTUAL PROPERTIES Szellemi Tulajdonjogokat Hasznositó és Kezelõ Korlátolt Fel

Transmission element device for two-way timing connected mechanically to the surface to be activated () of a timed apparatus operated by a controller (), the surface to be activated () is linearly movable against counter-force. The transmission element () has a transmission element brake cylinder () filled with operating medium. The inner space of the transmission element brake cylinder () is divided into a first chamber () and a second chamber () by a linearly moving transmission element piston () having a sealing element (). The transmission element piston () is provided with openings () for ensuring the flow of the operating medium between the two chambers () in an extent determined separately for each direction. The exit portion () of the transmission element () is in push contact with the surface to be activated (), while the transmission element piston () is fastened to the controller (). 11537151771921923925271921125115937. Transmission element device for two-way timing connected mechanically to a surface to be activated () of a timed apparatus operated by a controller () , the surface to be activated () is linearly movable against counter-force , characterized in that said transmission element () has a transmission element brake cylinder () filled with liquiform or gaseous operating medium , the inner space of said transmission element brake cylinder () is divided into a first chamber () and a second chamber () by means of a linearly moving transmission element piston () provided with a sealing element () , said transmission element piston () is provided with openings ( , ) for ensuring the flow of the operating medium between said first chamber () and said second chamber () in an extent (A , A) determined separately for each direction , the exit portion () of said transmission element () is in push contact with said surface to be activated () , while said transmission element piston () is structurally fastened to said controller ().235. Transmission element ...

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Номер записи: 42
25-01-2018 дата публикации

VALVE ASSEMBLY WITH ADJUSTABLE SPRING SEAT

Номер: US20180023710A1
Автор: Grenon Gary, Padilla Mario
Принадлежит:

A valve assembly includes a valve body, a first spring seat disposed within the valve body, a preload spring disposed within the valve body and mated with the first spring seat, and a second spring seat disposed within the valve body and mated with the preload spring. The second spring seat is adjustably mated to the valve body. 1. A valve assembly comprising:a valve body;a first spring seat disposed within the valve body;a preload spring disposed within the valve body and mated with the first spring seat; anda second spring seat disposed within the valve body and mated with the preload spring, the second spring seat being adjustably mated to the valve body.2. The valve assembly as recited in claim 1 , further comprising an end cap that is mated to the second spring seat and that is fixedly detachable with the valve body.3. The valve assembly as recited in claim 2 , wherein the end cap is fixedly detachable with the valve body via at least one fastener.4. The valve assembly as recited in claim 3 , wherein the end cap includes at least one elongated slot through which the at least one fastener is fixedly attachable to the valve body.5. The valve assembly as recited in claim 2 , wherein the second spring seat is adjustably mounted in the valve body on threads.6. The valve assembly as recited in claim 5 , wherein the end cap is rotatable and the second spring seat is engaged with the end cap in a keyed joint such that rotation of the end cap rotates the second spring seat on the threads to change a position of the second spring seat.7. The valve assembly as recited in claim 6 , wherein the keyed joint includes at least one arm and at least one opening claim 6 , and the at least one arm extends through the at least one opening such that the end cap and the second spring seat are rotationally locked together.8. The valve assembly as recited in claim 7 , wherein the at least one arm is radially offset from a central axis of rotation of the end cap.9. The valve assembly as ...

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Номер записи: 43
25-01-2018 дата публикации

Pilot valve

Номер: US20180023713A1
Автор: Kaoru YOSIHARA, Mitsuo Watanabe
Принадлежит: Anest Iwata Corp

A pilot valve for reliably moving a switching valve of a gas control valve. The pilot valve includes a bottomed cylinder-shaped valve body having an opening at one end, spools slidably accommodated in the valve body, and resilient members disposed at other ends of the spools opposite to the opening side to urge the spools toward the opening side. The valve body has at least three through-hole portions substantially equally spaced in a longitudinal direction. The spools allow communication between at least two mutually adjacent through-hole portions. The resilient members are configured to press the spools toward the opening side of the valve body in cooperation with a pressing device, thereby switching the spools from a state where the spools are positioned at a side of the valve body opposite to the opening side to a state where the spools are positioned at the opening side.

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Номер записи: 44
25-01-2018 дата публикации

FLOW RATE ADJUSTING DEVICE

Номер: US20180023726A1
Автор: HIRAI Kazuki
Принадлежит: Surpass Industry Co., Ltd.

Provided is a flow rate adjusting device in which a body portion having a valve hole includes: an annular wall portion that partitions a downstream-side fluid chamber into an inside flow channel annularly formed around a valve body portion and an outside flow channel annularly formed at an outside of the inside flow channel; an outflow hole that guides the fluid circulating in the outside flow channel to an outflow-side flow channel; and a blocking wall that blocks the fluid having reached the outflow hole from flowing around the outside flow channel. The annular wall portion includes a communication flow channel that guides the fluid from the inside flow channel to the outside flow channel. The communication flow channel guides the fluid to a location that is adjacent to the blocking wall and is isolated from the outflow hole by the blocking wall. 1. A flow rate adjusting device comprising:a valve body portion movable along an axis line;a body portion having a valve hole into which the valve body portion is inserted;a diaphragm portion that is coupled to the valve body portion and partitions an inside space of the body portion into a fluid chamber and a gas chamber, a fluid flowing in from the valve hole circulating in the fluid chamber; anda flow rate adjusting portion that adjusts an interval between the valve body portion and the valve hole by allowing the diaphragm portion to move along the axis line, wherein an inflow-side flow channel that guides a fluid flowing in from an inflow port to the fluid chamber;', 'an outflow-side flow channel that guides a fluid flowing out from the fluid chamber to an outflow port;', 'an annular wall portion that partitions the fluid chamber into an inside flow channel and an outside flow channel, the inside flow channel being annularly formed around the valve body portion, the outside flow channel being annularly formed at an outside of the inside flow channel;', 'an outflow hole that guides a fluid circulating in the outside ...

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Номер записи: 45
25-01-2018 дата публикации

PRESSURE-LIMITING VALVE

Номер: US20180024577A1
Автор: Bruck Peter, GRILL Martin
Принадлежит:

A pressure-limiting valve with feed function, comprising a valve housing () having at least two connection points, in particular in the form of a working connection (A) and a tank connection (T), and having a spring-loaded pressure-limiting valve piston () which is mounted such as to be longitudinally movable in the valve housing (), and having a spring-loaded non-return valve piston () for the implementation of the feed function, is characterized in that the non-return valve piston () is designed as a hollow piston and is mounted such as to be longitudinally movable in the valve housing (). 1202220565620. A pressure-limiting valve with feed function , comprising a valve housing () having at least two connection points , in particular in the form of a work port (A) and a tank port (T) , and having a spring-loaded pressure-limiting valve piston () , which is guided in a longitudinally displaceable manner in the valve housing () , and having a spring-loaded check-valve piston () for implementing the feed function , is characterized in that the check-valve piston () is designed as a hollow piston and is guided in a longitudinally displaceable manner in the valve housing ().2225622565622. The pressure-limiting valve according to claim 1 , characterized in that the two pistons ( claim 1 , ) are in contact with one another in the region of their free claim 1 , mutually adjacent end faces to block the fluid-conducting connection between the two connection points (A claim 1 , T) claim 1 , and in order to enable this connection claim 1 , at least one piston ( claim 1 , ) moves away from the other piston ( claim 1 , ) in the axial direction.32256525476782024582256466620. The pressure-limiting valve according to claim 1 , characterized in that the two pistons ( claim 1 , ) are each provided with at least one travel stop ( claim 1 , ; claim 1 , ) within the valve housing () claim 1 , and in that the respective resetting springs ( claim 1 , ) for the assignable piston ( claim 1 ...

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Номер записи: 46
24-01-2019 дата публикации

SLIDE SLEEVE VALVE HAVING INTEGRAL LEAK PREVENTION

Номер: US20190024807A1
Автор: Lindahl Gary M.
Принадлежит:

Systems and methods are provided for enhanced valves. One embodiment is a hydraulic valve that includes a housing that defines a first port, a second port, and a third port for a hydraulic fluid, and a sleeve disposed within the housing that defines openings in fluid communication with the second port and the third port. The valve also includes a slide comprising a head and a shaft. The shaft is disposed within the sleeve and the slide is movable in a lengthwise direction from a closed position to an open position. The head includes a circumferential lip that extends perpendicular to the lengthwise direction, and that abuts the sleeve when the slide is in the closed position to prevent flow of the hydraulic fluid from the first port. The shaft provides a flow path between the second port and the third port when the slide is closed. 1. An apparatus comprising: a housing that defines a first port, a second port, and a third port for a hydraulic fluid;', 'a sleeve disposed within the housing that defines openings in fluid communication with the second port and the third port; and', 'a slide comprising a head at a first end and a shaft at a second end, the shaft is disposed within the sleeve and the slide is movable in a lengthwise direction from a closed position to an open position,', 'the head includes a circumferential lip that extends perpendicular to the lengthwise direction, and that abuts the sleeve when the slide is in the closed position such that flow of the hydraulic fluid from the first port is prevented, and', 'the shaft provides a flow path between the second port and the third port when the slide is in the closed position., 'a hydraulic valve comprising2. The apparatus of wherein:when the slide is in the closed position, an inner surface of the circumferential lip abuts an annular protrusion of the sleeve, which prevents the flow of the hydraulic fluid.3. The apparatus of wherein:an area of the head is at least five times as large as an area of the ...

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Номер записи: 47
02-02-2017 дата публикации

AUTOMATIC SHUTOFF VALVE FOR A PIPELINE

Номер: US20170030473A1
Автор: Deaver Royce Don
Принадлежит: DEATECH CONSULTING COMPANY

A valve in a pipeline is automatically configured to close the flow through the pipeline in the event of a pipeline rupture or similar event. During normal flow, a valve element is maintained in an open position. However, in the event of a rupture, the resulting pressure drop across the valve is sensed and causes the valve element to move to a closed position. 1. An automatic shutoff valve for a pipeline comprising:a) a housing having an inlet and an outlet;b) a valve closure element positioned within the housing,c) a valve stem connected at a first position to the valve closure element and connected at a second portion to a piston located within a fluid chamber;d) means for communicating an inlet pressure of the valve to a first side of the piston and for communicating an outlet pressure of the valve to a second side of the piston, ande) means for maintaining the valve closure element in an open position during normal operation of the valve.2. A valve as claimed in wherein the means for maintaining the valve closure element in an open position includes one or more weights connected to the valve stem.3. A valve as claimed in wherein the means for communicating an inlet pressure to a first side of the piston includes a port in the pipeline upstream of the inlet and a conduit extending between the port and the fluid chamber.4. A valve as claimed in wherein the means for communication an outlet pressure to a second side of the piston includes a second port in the pipeline downstream of the outlet and a conduit extending between the second port and the fluid chamber.5. A valve as claimed in wherein the valve closure element is a flapper valve.6. A valve as claimed in wherein the valve closure element is a gate valve.7. A valve as claimed in wherein the housing includes an internal flow path having a roughened portion to increase the pressure drop across the valve.8. A valve as claimed in wherein the means for maintaining the valve closure element in an open position ...

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Номер записи: 48
01-02-2018 дата публикации

ACTUATOR

Номер: US20180031139A1
Автор: Sundararajan Alagarsamy
Принадлежит:

A valve actuator assembly having an actuator housing coupled to a bonnet and a housing lid. A hydraulic cylinder is positioned within the actuator housing and directly coupled to the bonnet. A piston is positioned within the hydraulic cylinder and coupled to a spring lifter assembly and a spring is positioned within the actuator housing and having a first end and a second end, the first end being coupled to a lower surface of the housing lid, and the second end being coupled to the spring lifter assembly. An operating stem is coupled to the piston and positioned in a channel extending through the bonnet to a valve body assembly. 1. A valve actuator assembly comprising:an actuator housing coupled to a bonnet and a housing lid;a hydraulic cylinder positioned within the actuator housing and coupled to the bonnet;a piston positioned within the hydraulic cylinder and coupled to a spring lifter assembly;a spring positioned within the actuator housing and having a first end and a second end, the first end coupled to a lower surface of the housing lid, and the second end coupled to the spring lifter assembly; andan operating stem coupled to the piston, positioned in a channel, and extending through the bonnet to a valve body assembly.2. The valve actuator assembly of comprising a pressure compensator positioned externally and adjacent to the actuator housing.3. The valve actuator assembly of wherein the operating stem is coupled to a gate.4. The valve actuator assembly of wherein the hydraulic cylinder directly contacts the bonnet.5. The valve actuator assembly of comprising a pressure compensator inside the actuator housing.6. The valve actuator assembly of wherein the pressure compensator is positioned within a recess of the housing lid.7. The valve actuator assembly of wherein the pressure compensator includes a free-floating piston claim 5 , an outer sleeve guide claim 5 , and an inner sleeve guide.8. The valve actuator assembly of wherein the free-floating piston is ...

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Номер записи: 49
01-05-2014 дата публикации

VALVE

Номер: US20140117264A1
Автор: FREHNER Hanspeter, Zanetti Claudio
Принадлежит:

A valve, in particular a vacuum valve, in which, in order to close a passage opening, in particular of the valve, at least one closure member can be moved by a valve drive, starting from a maximum open position, in which the closure member opens the passage opening at least partially, first on a first partial path into an intermediate position, and the closure member can be moved, starting from the intermediate position, on at least one second partial path which is angled away from the first partial path into a closed position, in which the closure member closes the passage opening, the valve drive having at least two cylinder spaces which are loadable in each case with a pressure medium, at least one piston being mounted displaceably in each of the cylinder spaces, and the pistons being supported on one another by way of at least one prestressing element. 1. A valve for closing at least one passage opening , comprising:at least one closure member that is movable by a valve drive, starting from a maximum open position, in which the closure member opens the passage opening at least partially, first of all on a first partial path into an intermediate position, and the closure member is movable, starting from the intermediate position, on at least one second partial path which is angled away from the first partial path into a closed position, in which the closure member closes the passage opening, the valve drive having at least two cylinder spaces which are loadable in each case with a pressure medium, wherein at least one piston is mounted displaceably in respective ones of the cylinder spaces, and the pistons are supported on one another by at least one prestressing element.2. The valve as claimed in claim 1 , wherein the cylinder spaces are connected to one another by a common pressure line for the pressure medium.3. The valve as claimed in claim 1 , wherein the cylinder spaces are connected in a first operating state to a pressure source claim 1 , in order to move ...

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Номер записи: 50
17-02-2022 дата публикации

DIAPHRAGM, VALVE DEVICE, AND METHOD FOR MANUFACTURING DIAPHRAGM

Номер: US20220049775A1
Автор: INADA Toshiyuki, KONDO Kenta, NAKADA Tomoki, NAKATA Tomohiro, WATANABE Kazunari
Принадлежит:

A diaphragm includes: a metal thin plate; and a thin film layer formed over an entirety of a surface on one side of the thin plate. 1. A diaphragm comprising:a metal thin plate; anda thin film layer formed over an entirety of a surface on one side of the thin plate.2. The diaphragm according to claim 1 , wherein a maximum height Rmax of a surface roughness of the thin film layer is less than 0.1 μm.3. The diaphragm according to claim 2 , wherein the maximum height Rmax of the surface roughness of the thin film layer is less than 0.02 μm.4. The diaphragm according to claim 3 , wherein the maximum height Rmax of the surface roughness of the thin film layer is less than 0.01 μm.5. The diaphragm according to claim 1 , wherein the thin film layer is a carbon film or a fluorine resin film.6. The diaphragm according to claim 5 , wherein the carbon film is constituted by DLC.7. A valve device comprising:a body in which a fluid passage is formed;a valve seat provided in the body; and{'claim-ref': {'@idref': 'CLM-00001', '#text': 'claim 1'}, '#text': 'the diaphragm according to , which is configured to open and close the fluid passage by abutting the valve seat and separating from the valve seat,'}wherein the thin film layer of the diaphragm is positioned on the valve seat side.8. A method for manufacturing a diaphragm having a metal thin plate and a thin film layer claim 5 , the method comprising:molding the thin plate into a spherical shell shape; andforming the thin film layer, which has a surface roughness with a maximum height Rmax of less than 0.1 μm, over an entirety of a concave surface of the thin plate. This application is a continuation under 35 U.S.C. § 120 of PCT/JP2020/015584, filed Apr. 6, 2020, which is incorporated herein reference and which claimed priority to Japanese Patent Application No. 2019-086334, filed Apr. 26, 2019. The present application likewise claims priority under 35 U. S. C. § 119 to Japanese Application No. 2019-086334, filed Apr. 26, 2019, ...

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Номер записи: 51
17-02-2022 дата публикации

Two-way chemical injection valve

Номер: US20220049779A1
Автор: Joshua Prather, Robert Hicks
Принадлежит: Republic Oil Tools LLC

A two-way injection valve having a primary flow path to allow chemical injection into an annulus area surrounding production tubing and a secondary flow path to allow chemical injection into the inside of the production tubing via a tubular member of the production tubing. A method of using the two-way injection valve includes the step of injecting chemical into an annulus area via a two-way injection valve. The method also includes the step of injecting chemical inside of production tubing via the two-way injection valve.

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Номер записи: 52
31-01-2019 дата публикации

DAMPED RELIEF VALVE USING DOUBLE PISTONS

Номер: US20190032811A1
Автор: BRITO Roberto
Принадлежит:

A gas turbine engine comprises bearing(s). A structure supporting the bearing defines a bearing cavity surrounding the at least one bearing, an ambient chamber and an intermediate chamber having a portion between the bearing cavity and the ambient chamber, with at least one wall forming a passage from the bearing cavity to the ambient chamber and through the portion of the intermediate chamber. A tube is received in the passage and having a first end open to the bearing cavity and a second end open to the ambient chamber, the second end adapted to be connected to a conduit for fluid communication between the bearing cavity and the through the tube, wherein a portion of or near the first end of the tube is sealingly joined to the at least one wall, and the second end of the tube contacts the at least one wall and is free to move relative to the at least one wall. 1. A damping valve comprising a tubular body having at least one inlet and at least one outlet , a damping piston in the tubular body , the damping piston moveable between a closed position in which the outlet is substantially blocked , and a bypass position in which fluid flow from the inlet to the outlet is permitted , a damping biasing device biasing the damping piston toward the closed position , the damping piston having a first effective piston area in a first chamber exposed to fluid pressure at the inlet and a second effective piston area in a second chamber , the second effective piston area being smaller than the first effective piston area , at least one fluid passage formed in the damping valve for fluid communication between the first chamber and the second chamber to direct fluid from the inlet to the second chamber , whereby fluid in the second chamber applies a force concurrent to the biasing of the damping biasing device and assists in displacing the damping piston to the closed position.2. The damping valve according to claim 1 , wherein the at least one fluid passage is through the damping ...

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Номер записи: 53
04-02-2021 дата публикации

Pinch valve

Номер: US20210033204A1
Автор: Declan IRISH, Shane Molloy
Принадлежит: Carten Controls Ltd

A pinch valve assembly is provided for compression of a fluid conduit comprising an assembly housing ( 1 ); an interchangeable compressor element ( 2 ); an interchangeable holder element ( 3 ) for holding a fluid conduit, the holder element facing the interchangeable compressor element; the valve assembly being configured such that the compressor element is moveable towards the holder element within the assembly housing for compression of a fluid conduit between the compressor and the holder elements.

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Номер записи: 54
11-02-2016 дата публикации

ACTUATOR FOR AXIAL DISPLACEMENT OF AN OBJECT

Номер: US20160040564A1
Автор: Höglund Anders
Принадлежит:

An actuator for axial displacement of an object, includes an actuator piston and an actuator piston rod, wherein the piston is displaceable in the axial direction, and a hydraulic circuit including a liquid filled chamber, a first end of the actuator piston rod being displaceable in the axial direction within the liquid filled chamber, wherein an axially extending recess mouth in the liquid filled chamber is arranged to receive the first end. The actuator piston rod in the area of the first end presents a cylindrical envelope surface, and the recess presents a cylindrical inner surface having a matching shape, wherein the actuator includes a passage extending between the recess and liquid filled chamber when the cylindrical envelope surface and the cylindrical inner surface are located in overlapping configuration, wherein the passage presents at a braking overlap section a cross section area that decreases as a function of increasing overlap. 235. The actuator according to claim 1 , wherein said beginning of the braking overlap section () represent at least 30% of the maximum overlap.335. The actuator according to claim 1 , wherein said end of the braking overlap section () represent at least 10% of the maximum overlap.4353536362425. The actuator according to claim 1 , wherein the predetermined maximum overlap claim 1 , in addition to said braking overlap section () and adjacent an end of the braking overlap section () claim 1 , comprises a seating overlap section () claim 1 , the passage presenting at said seating overlap section () a cross section area (A) that is constant as a function of increasing overlap between the cylindrical envelope surface () and the cylindrical inner surface ().536. The actuator according to claim 4 , wherein said seating overlap section () represent less than 20% of the maximum overlap.6. The actuator according to claim 1 , wherein the axial length of the maximum overlap is greater than 1 mm claim 1 , and less than 5 mm claim 1 , ...

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Номер записи: 55
08-02-2018 дата публикации

LUBRICATION SYSTEM WITH PASSIVE VALVE

Номер: US20180038474A1
Автор: Poster Scott
Принадлежит: Bell Helicopter Textron Inc.

A valve with supplemental media and a piston configured to open the valve when a first force is greater than a second force. The pressure of the supplemental media exerts a substantial portion of the first force. The valve also has a biasing member that changes volume as temperature changes and exerts a substantial portion of the second force. The second force decreases as the temperature of the biasing member increases. 1. A system , comprising:a mechanical assembly;a pumping mechanism configured to deliver a lubricating media to a mechanical assembly; and a storage unit configured to contain a supplemental media; and', 'a biasing member that changes volume as temperature changes and exerts a substantial portion of the second force, wherein the second force decreases as the temperature of the biasing member increases.', 'a valve operable to deliver the supplemental media from the storage unit to the mechanical assembly when a first force is greater than a second force, wherein the first force is substantially caused by the pressure of the supplemental media, the valve comprising], 'a cooling system comprising215. The system according to claim , wherein the biasing member is a spring.315. The system according to claim , wherein the supplemental media is a lubricant.415. The system according to claim , wherein the mechanical assembly comprises a plurality of gears.515. The system according to claim , wherein the valve comprises an inner chamber and an outer chamber.619. The system according to claim , wherein the inner chamber comprises the biasing member , the outer chamber comprises a port that allows the supplemental media to flow from the storage unit to the mechanical assembly when the valve is open.7. A valve comprising:a piston configured to open the valve when a first force is greater than a second force;supplemental media, wherein the pressure of the supplemental media exerts a substantial portion of the first force;a biasing member that changes volume as ...

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Номер записи: 56
08-02-2018 дата публикации

PNEUMATIC MIXING VALVE

Номер: US20180038504A1
Автор: Franconi Robert
Принадлежит: HONEYWELL INTERNATIONAL INC.

A pneumatic mixing valve is provided, which includes a housing that defines a first inlet, a second inlet and an outlet. The first inlet is coupled to a first fluid source and the second inlet is coupled to a second fluid source. The housing defines a first chamber and a second chamber. The pneumatic mixing valve includes a mixing system. The mixing system includes a piston that is movable by at least one of the first fluid and the second fluid. The housing defines a fluid passageway that extends from near the first inlet to the second chamber and the pneumatic mixing valve includes an actuator that is movable between a first position and a second position. In the first position, the fluid passageway is closed such that the outlet is open, and in the second position, the fluid passageway is open such that the outlet is closed. 1. A pneumatic mixing valve comprising:a housing that defines a first inlet, a second inlet and an outlet, the first inlet adapted to be coupled to a first fluid source and the second inlet adapted to be coupled to a second fluid source;the housing defining a first chamber fluidly separated from a second chamber, the first chamber in fluid communication with the first inlet, the second inlet and the outlet;a mixing system at least partially disposed in the first chamber, the mixing system including a piston that is movable by at least one of the first fluid and the second fluid;the housing defining a fluid passageway that extends from near the first inlet to the second chamber; andan actuator that is movable between a first position and a second position, and in the first position the fluid passageway is closed such that the outlet is open, and in the second position, the fluid passageway is open such that the outlet is closed.2. The pneumatic mixing valve of claim 1 , wherein the first chamber comprises a mixing chamber spaced apart from a positioning chamber.3. The pneumatic mixing valve of claim 1 , wherein the piston includes a head and a ...

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Номер записи: 57
08-02-2018 дата публикации

Valve Actuating System

Номер: US20180038509A1
Автор: Marcel HEIMROTH, Markus Dreher, Michael Kanthack
Принадлежит: Festo SE and Co KG

In a valve actuating system having an actuating drive which has a drive housing and an output unit which is movably mounted in the drive housing for generating a stroke of a spindle of a valve for opening or closing a through-flow opening of the valve, wherein the output unit has a force pickup portion to which the spindle is coupleable or coupled and a fastening portion arranged opposite the force pickup portion, wherein the actuating drive furthermore possesses a holder, which is separate from the output unit, has a holder longitudinal-axis and has a fastening device by way of which it is fastened to the fastening portion of the output unit and a support device for supporting at least one position information element on the holder, and wherein the valve actuating system has a plurality of mutually different types of position information elements supported on the holder by way of the support device.

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Номер записи: 58
07-02-2019 дата публикации

FLOW DIVIDING VALVE

Номер: US20190040965A1
Автор: Dohi Ryousuke, Funakoshi Takashi, Ishibashi Keisuke, Shimomura Yoshinori, Tanikawa Tsuyoshi, YAKUSHIJIN Tadayuki, Yamaji Michio
Принадлежит:

A valve element movement mechanism includes: a first valve stem having one end portion to which a first valve element to close and open an area between one of the large diameter portion and the small diameter portion is fixed; a second valve stem having one end portion to which a second valve element to close and open an area between the other of the large diameter portions and the small diameter portion is fixed; a first bellows having one end portion fixed to a first bellows flange and the other end portion fixed to the first valve element; a second bellows having one end portion fixed to a second bellows flange and the other end portion fixed to the second valve element; a frame disposed outside the main passage; and an actuator to move the frame in the directions in which valve elements are closed and opened. 1. A flow dividing valve including:a body in which a main passage, an inlet passage that is in communication with the main passage, a first outlet passage that is in communication with the main passage, and a second outlet passage that is in communication with the main passage are formed;a first seat disposed at a portion of the main passage, the portion leading to the first outlet passage;a second seat disposed at a portion of the main passage, the portion leading to the second outlet passage;a first valve element that is brought into contact with and is separated from the first seat to close and open the portion that leads to the first outlet passage, respectively;a second valve element that is brought into contact with and is separated from the second seat to close and open the portion that leads to the second outlet passage, respectively; anda valve element movement mechanism that moves either one of the first valve element and the second valve element to an opening side and that moves the other of the first valve element and the second valve element to a closing side in an interlocked manner, whereinthe main passage has two large diameter portions and ...

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Номер записи: 59
07-02-2019 дата публикации

COMPOUND EXPRESS ACTUATOR CONNECTION

Номер: US20190040973A1
Автор: Adams Keith M., Cheatham Lloyd R., Law Robert Kevin, McEvoy Travis Kyle
Принадлежит: GE Oil & Gas Pressure Control LP

A system for securing a valve actuator to a valve assembly includes an actuator housing with a plurality of housing lugs protruding radially. A cylinder assembly is located within the actuator housing and has a horseshoe connector to engage a valve stem nub of a valve stem and transfer axial movement of the horseshoe connector to axial movement of the valve stem. A bonnet has a plurality of bonnet lugs protruding radially from the bonnet to define a plurality of bonnet slots therebetween, wherein each of the plurality of housing lugs are sized to pass axially through a respective one of the plurality of bonnet slots when the actuator housing is in a released position, the actuator housing being rotatable to a locked position such that the plurality of bonnet lugs prevent axial movement of the actuator housing in at least one direction. 1. A system for securing a valve actuator to a valve assembly , the system comprising:an actuator housing having an actuator axis, and a plurality of housing lugs spaced apart around a circumference of the actuator housing, the plurality of housing lugs defining a plurality of housing slots therebetween;a valve stem, a first portion of the valve stem having a valve stem nub with a nub shoulder, and a second portion of the valve stem operable to be connected to a valve;a cylinder assembly located within the actuator housing, the cylinder assembly having a receptacle at an end to engage nub shoulder, transferring axial movement of the receptacle to axial movement of the valve stem when the valve stem is positioned within the receptacle;a bonnet having a plurality of bonnet lugs spaced apart around a circumference of the bonnet, the plurality of bonnet lugs protruding radially define a plurality of bonnet slots therebetween, wherein each of the plurality of housing lugs are sized to pass axially through a respective one of the plurality of bonnet slots when the actuator housing is in a released position, the actuator housing being ...

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Номер записи: 60
06-02-2020 дата публикации

ACTUATOR AND VALVE DEVICE USING THE SAME

Номер: US20200041007A1
Автор: Miura Takeru, NAKATA Tomohiro, SATO Tatsuhiko
Принадлежит: FUJIKIN INCORPORATED

To provide a valve device capable of easily and precisely adjusting a flow rate of a flowing fluid, and an actuator used in the valve device. The problem is solved by an actuator including pistons housed in a housing, a supply port of compressed air provided to a casing constituting the housing, and an adjustment member that is provided to a position separated from the supply port and regulates an upper limit position of possible movement of the piston that comes into contact with the adjustment member. The piston comes into contact with the adjustment member and is positioned in the upper limit position when compressed air is supplied through the supply port. The adjustment member s provided so as to allow adjustment of the upper limit position from outside the housing. 1. An actuator comprising:a piston housed in a housing;a supply port of a pressurized fluid provided to the housing; andan adjustment member provided to the housing at a position separated from the supply port and including a regulating surface that regulates an upper limit position of possible movement of the piston, whereinthe piston or a member moving along with the piston comes into contact with the regulating surface of the adjustment member when the pressurized fluid is supplied through the supply port, and the piston is positioned in the upper limit position, andthe adjustment member is provided so as to allow adjustment of the upper limit position from outside the housing.2. The actuator according to claim 1 , whereinthe adjustment member is provided so as to be directly accessible from outside the housing.3. The actuator according to claim 1 , whereinthe adjustment member comprises a lock mechanism that is operable from outside the housing and locks a position of the adjustment member, andthe lock mechanism locks the position of the adjustment member by deforming the adjustment member screwed into the housing.4. The actuator according to claim 3 , whereinthe lock mechanism comprises a ...

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Номер записи: 61
18-02-2021 дата публикации

SET OF JIGS FOR ASSEMBLING A VALVE, AND A DIAPHRAGM VALVE ASSEMBLED WITH THE SAME

Номер: US20210048110A1
Автор: IIZUKA Hisanobu
Принадлежит:

By preventing a twist of the diaphragm when assembled, various adverse effects arising from such a twist of the diaphragm are completely eliminated. Provided is a set of jigs for assembling a valve including a pair of above and below fixing jigs, a rotation-stop jig, and a fixing means: the rotation-stop jig is inserted and fixed to the above fixing jig in a non-rotational state; the fixing means fixes non-rotatably and attachably the rotation-stop jig and a bonnet of the valve to each other; a body of the valve is inserted and fixed to the below fixing jig in a non-rotational state; the bonnet and the body are fixed independently from each other in a non-rotational state, thereby preventing an outer periphery of a diaphragm from twisting in which a lower surface of an outer periphery of the bonnet and an outer seal part of the body are tightly attached to and hold the outer periphery of the diaphragm. 1. A set of jigs for assembling a valve comprising a pair of above and below fixing jigs , a rotation-stop jig , and a fixing means:the rotation-stop jig is inserted and fixed to the above fixing jig in a non-rotational state;the fixing means fixes non-rotatably and attachably the rotation-stop jig and a bonnet of the valve to each other;a body of the valve is inserted and fixed to the below fixing jig in a non-rotational state;the bonnet and the body are fixed independently from each other in a non-rotational state, thereby preventing an outer periphery of a diaphragm from twisting in which a lower surface of an outer periphery of the bonnet and an outer seal part of the body are tightly attached to and hold the outer periphery of the diaphragm.2. A set of jigs for assembling a valve according to claim 1 , comprising further a fastening nut which is screwed to an opening of the body claim 1 , and the outer seal part is configured by screwing of the fastening nut with a tool.3. A set of jigs for assembling a valve according to claim 1 , wherein the fixing means is ...

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Номер записи: 62
18-02-2021 дата публикации

FLUID VALVE

Номер: US20210048111A1
Автор: Bomal Jean-Christian, Frippiat Cedric, Magette Arnaud, Vandenbroucke Maxime
Принадлежит: SAFRAN AERO BOOSTERS S.A.

A fluid valve for a hydraulic circuit of an aircraft includes a valve body with an inlet and two outlets. The valve further includes a solenoid electric actuator with a ferromagnetic mobile driver and a valve member having a ferromagnetic portion/The valve member is movable within the valve body along a main direction and has first and second ends that define first and second cavities, respectively, on opposite sides of the valve member. A longitudinal cavity extends through the valve member parallel to the main direction and opens into the second cavity. Relative displacement between the mobile driver and the valve member modifies a communication between the longitudinal cavity and the first cavity via a side opening that is perpendicular to the main direction. 1. A fluid valve for a hydraulic circuit of a piece of equipment of an aircraft and comprising:a hollow valve body comprising an inlet, two outlets and a communication to an external pressure;a fixed restriction in said communication,a solenoid electric actuator located in the hollow of the hollow valve body and comprising a ferromagnetic mobile driver; anda valve member movable in translation within the valve body along a main direction to at least partially block a passage between said inlet and one of the two outlets, comprising first and second ends,', 'at least partially defining first and second cavities located on either side of said valve member in the hollow of the valve body, said first and second cavities being adjacent to said first and second ends, respectively, said first cavity being connected to said external pressure via said communication, and', 'comprising a longitudinal cavity extending parallel to said main direction and opening into said second cavity,', 'wherein, 'said valve member{'b': 5', '50, 'at least one portion of the valve member comprises a ferromagnetic material, the solenoid electric actuator surrounding at least one portion of the valve member () for one or more positions of ...

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Номер записи: 63
18-02-2016 дата публикации

Valve and Assembly Method

Номер: US20160047480A1
Автор: Feser Hubert
Принадлежит:

A valve for installation in a valve bore of a housing or valve block includes a valve bushing for insertion into the valve bore, a guided valve piston that can be moved axially in the valve bushing, an activation section of said piston projecting above the valve bushing axially, and a valve cover that is configured to be arranged over the valve bore and that forms, together with the activation section of the valve piston, at least one activation pressure chamber. 121-. (canceled)22. A valve for installing in a valve bore of a housing or of a valve block , comprising:a valve bushing configured to be inserted into the valve bore;a valve piston which is guided in an axially movable manner in the valve bushing and which, by means of an actuating section projects axially above the valve bushing; anda valve cover arranged over the valve bore, and which, together with the actuating section of the valve piston, forms at least one actuating pressure space, the valve cover divided axially into at least two components, an intermediate cover configured to guide the actuating section in a main bore and a functional cover provided on the intermediate cover on the side remote from the valve bushing, said functional cover having at least one control channel, wherein:the actuating section divides the main bore into an actuating pressure space on the functional cover side and into an actuating pressure space on the valve bushing side,the intermediate cover has a further control channel for the actuating pressure space on the valve bushing side, andonly the at least one control channel of the functional cover opens into the actuating pressure space on the functional cover side and only the further control channel of the intermediate cover opens into the actuating pressure space on the valve bushing side.23. The valve as claimed in claim 22 , wherein a bottom surface of the main bore of the intermediate cover is formed on the functional cover.24. The valve as claimed in claim 22 , ...

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Номер записи: 64
15-02-2018 дата публикации

PRESSURE REGULATING VALVE WITH FLOW ANTI-ROTATION

Номер: US20180045118A1
Автор: Coretto August M., Rickis Aaron F.
Принадлежит:

A sleeve for a pressure regulating valve includes a sleeve body surrounding a central axis and defined by an overall length extending from a first end to a second end. The sleeve body has a central sleeve bore extending from the first end to the second end. The sleeve body includes a first set of windows circumferentially spaced about the central axis and a second set of windows axially spaced from the first set of windows and circumferentially spaced about the central axis. Each window of the first set of windows is defined by a plurality of small holes. 1. A sleeve for a pressure regulating valve comprising:a sleeve body surrounding a central axis and defined by an overall length extending from a first end to a second end, the sleeve body having a central sleeve bore extending from the first end to the second end, the sleeve body includes a first set of windows circumferentially spaced about the central axis and a second set of windows axially spaced from the first set of windows and circumferentially spaced about the central axis, wherein each window of the first set of windows is defined by a plurality of small holes.2. The sleeve according to claim 1 , wherein each of the plurality of small holes has a length in a flow direction and a diameter claim 1 , and a ratio of the length in the flow direction to the diameter (L/D) is between about 1 and about 2.3. The sleeve according to claim 1 , wherein the plurality of small holes that define a window of the first set of windows are arranged in at least one of rows and columns.4. The sleeve according to claim 3 , wherein adjacent rows or columns are arranged in a staggered configuration.5. The sleeve according to claim 1 , wherein the plurality of small holes that define a window are substantially identical.6. The sleeve according to claim 1 , wherein each plurality of small holes that define a window of the first set of windows is substantially identical.7. The sleeve according to claim 1 , wherein the plurality of ...

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Номер записи: 65
25-02-2016 дата публикации

END OF STROKE ACTUATOR BLEED

Номер: US20160052184A1
Автор: Galati Vito, Tan Zhuang Rui
Принадлежит:

An apparatus for driving a valve pin in an injection molding system, comprising: 1. An apparatus for driving a valve pin in an injection molding system , comprising:an actuator comprised of a housing having a fluid sealed master chamber having a longitudinal axis formed within the housing having a piston disposed within the master chamber, the piston having a circumferential surface complementary to an interior surface of the master chamber,the piston being slidable upstream and downstream along an axial path of travel within the master chamber wherein a seal surface is disposed on the circumferential surface of the piston that engages against and forms a fluid seal with a selected axial length of the complementary interior surface of the master chamber, the fluid seal forming opposing upstream and downstream fluid drive chambers disposed on opposing upstream and downstream ends of the piston within the master chamber,the path of travel of the piston extending between a fully upstream position and a fully downstream position,wherein upstream and downstream fluid delivery ports are formed within the housing of the actuator, the upstream fluid delivery port communicating with the upstream fluid drive chamber and the downstream port communicating with the downstream fluid drive chamber to reciprocally deliver drive fluid under one or more preselected pressures into the upstream and downstream chambers to reciprocally drive the piston between the fully upstream and downstream positions,a bleed device comprised of a single port extending through the interior surface of the master chamber at an axial position along the longitudinal axis of the master chamber wherein the single port is:either disposed immediately downstream of the complementary interior surface of the master chamber that forms a seal with the circumferential seal surface of the piston and communicates with the downstream fluid drive chamber when the piston is in the fully upstream position, oris disposed ...

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Номер записи: 66
26-02-2015 дата публикации

PISTON-FORMAT WORKING-FLUID-PRESSURE ACTUATOR AND CONTROL VALVE

Номер: US20150053874A1
Автор: Kai Norimitsu, Suenaga Hiroshi
Принадлежит: ASAHI ORGANIC CHEMICALS INDUSTRY CO., LTD.

[Problem] To provide a piston-format working-fluid-pressure actuator capable of commonly using components when the piston-format working-fluid-pressure actuator is used for a reverse action or a normal action and decreasing a length dimension, in the forward/backward movement direction of the output shaft and to provide a control valve using the piston-format working-fluid-pressure actuator and a valve member. 1. A piston-format working-fluid-pressure actuator comprising:a casing provided with a cylinder chamber by including first and second casing bodies;an output shaft supported by the casing so as to be movable forward or backward;a piston attached to the output shaft and defining the cylinder chamber;a spring member applying an elastic force of moving the output shaft to the piston;a working-fluid supply opening supplying a working fluid applying a force of moving the output shaft to the piston against the elastic force applied from the spring member; andat least one seal member sealing the leakage of the working fluid,wherein the piston includes an accommodating recess accommodating the spring member and is attachable to the output shaft so that an opening of the accommodating recess is selectively directed toward the first casing body or the second casing body,wherein the output shaft extends so as to penetrate one casing body of the first casing body and the second casing body and is connected to a subject operation member, and{'b': 1', '2', '1', '2, 'wherein the piston is disposed so as to establish a relation of L=L when the distance L is a distance between a seating surface connected to the output shaft and a contact surface contacting one casing body during a reverse action and the distance L is a distance between a seating surface connected to the output shaft and a contact surface contacting one casing body during a normal action.'}2. The piston-format working-fluid-pressure actuator according to claim 1 , further comprising:a connection member ...

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Номер записи: 67
14-02-2019 дата публикации

SYSTEM FOR CONTROLLING A VEHICLE TRANSMISSION SUMP FLUID LEVEL

Номер: US20190048992A1
Автор: Buczkowski Bradley A., Eber Kelly
Принадлежит:

A transmission for a vehicle propulsion system includes a transmission housing defining a sump volume and valve body side cover volume separated by a side wall from the sump volume, a valve operable to selectively connect the valve body side cover volume with the sump volume through a fluid flow passage, a source of selectively pressurizable fluid, and an orifice connecting the source of selectively pressurizable fluid to the fluid flow passage. 1. A transmission for a vehicle propulsion system , the transmission comprising:a transmission housing defining a sump volume and valve body side cover volume separated by a side wall from the sump volume;a valve operable to selectively connect the valve body side cover volume with the sump volume through a fluid flow passage;a source of selectively pressurizable fluid; andan orifice connecting the source of selectively pressurizable fluid to the fluid flow passage.2. The transmission of claim 1 , wherein when the source of selectively pressurizable fluid is pressurized a flow of fluid through the orifice has a higher velocity than a flow through the fluid flow passage.3. The transmission of claim 2 , wherein the orifice is positioned relative to the fluid flow passage such that the higher velocity of fluid from the orifice into the fluid flow passage results in a lowering of pressure in the fluid flow passage which increases the volume of flow through the fluid flow passage from the valve body side cover volume into the sump volume.4. The transmission of claim 1 , wherein the source of selectively pressurizable fluid determines operation of the valve based upon the pressure of the selectively pressurized fluid exceeding a predetermined threshold.5. The transmission of claim 1 , further comprising a solenoid operable to selectively provide the pressurizable fluid to a control inlet for the valve and to the orifice.6. The transmission of claim 1 , wherein the fluid flow passage comprises an outlet from the valve and wherein ...

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Номер записи: 68
25-02-2016 дата публикации

TIMING VALVE AND KICK-DOWN VALVE

Номер: US20160053903A1
Автор: Martin Francis J.
Принадлежит:

A timing valve includes a moveable piston that has a solid end face at a first end that includes an orifice, an open second end, and side walls that define an enclosed space, a stepped region on an outer surface of the piston, complementary stepped region on an inner surface of a hollow body containing the piston, and an annulus that extends toward the second end defined by a space between the outer surface of the piston and the inner surface of the hollow body. Fluid flowing through the orifice pushes the piston into an open position that forms a space between the stepped and complementary stepped regions that fills with fluid seeping in through the annulus. When pressure on the piston falls below a threshold, the return of the piston to a closed position is slowed by expelling fluid from the space between the stepped and complementary stepped regions. 1. A timing valve , comprising:a hollow singular body with an inlet at a first end and first outlets penetrating a side wall thereof in a region near the inlet,a moveable hollow timing piston enclosed by said singular body that has a solid end face at a first end of the timing piston proximal to the inlet that includes an orifice, an open second end, and side walls that define a first enclosed space and cover the first outlets when in a closed position; anda timing spring enclosed by the timing piston and having a first end mounted on the timing piston,wherein fluid flowing into the singular body through the inlet flows through the orifice in the end face of the timing piston, and wherein fluid pressure on the end face pushes the timing piston against the spring into an open position that exposes the first outlets, wherein fluid flows out through the first outlets, stabilizing pressure on the timing piston and allowing the timing piston to remain in an open position.2. The timing valve of claim 1 , wherein the singular body further comprises a seat enclosed by the singular body disposed within the singular body at a ...

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Номер записи: 69
13-02-2020 дата публикации

PILOT OPERATED BLOW-OFF VALVES FOR HYDRAULIC ACTUATORS

Номер: US20200049266A1
Автор: Belter Joseph Thomas, Tucker Clive
Принадлежит: ClearMotion, Inc.

Disclosed herein are various embodiments of a hydraulic actuator that includes one or more check valves having a dynamically varying cracking pressure. In certain embodiments, a hydraulic actuator may be configured to vary the cracking pressure of a check valve based on an operating condition of a pump of the hydraulic actuator. The check valve may be located along a bypass path in the hydraulic actuator, thereby allowing for fluid flow to bypass a pump of the hydraulic actuator by passing through the check valve. The use of such hydraulic actuators is contemplated in, for example, an active suspension system of a vehicle. Additionally, various embodiments of suitable check valves are disclosed. Additionally, methods are disclosed for operation of the check valve and the hydraulic actuator. 1. A hydraulic actuator comprising:a hydraulic cylinder having an internal volume;a piston slidably received in the hydraulic cylinder, thereby dividing the internal volume into a compression chamber and an extension chamber;a pump having a compression-side port and an extension-side port;a compression-side flow path that connects the compression-side port of the pump to the compression chamber;an extension-side flow path that connects the extension-side port of the pump to the extension chamber;a first bypass flow path that connects the compression chamber to the extension chamber, wherein the first bypass flow path does not include the pump;a first check valve disposed along the first bypass flow path, wherein a cracking pressure of the first check valve dynamically varies based on an operating condition of the hydraulic actuator.2. The hydraulic actuator of claim 1 , wherein the pump is configured to vary a pressure differential between the compression-side port and the extension-side port claim 1 , and wherein the operating condition of the hydraulic actuator is the pressure differential generated by the pump at a given time.3. The hydraulic actuator of claim 2 , further ...

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Номер записи: 70
23-02-2017 дата публикации

A FLUID CONTROL VALVE

Номер: US20170051644A1
Автор: LAGERLOF Fredrik
Принадлежит: VOLVO TRUCK CORPORATION

A fluid control valve includes a cylindrical housing with at least one opening through a housing wall, a cylindrical main valve axially movably arranged inside the housing for controlling a fluid flow through the at least one opening and a main valve spring member acting on the main valve. The main valve includes a base wall defining a fluid control volume and fluid main volume in the cylindrical housing. The base wall includes an opening for fluidly connecting the fluid control volume with the fluid main volume. The fluid control valve further includes a pilot valve positioned at the base wall opening, which pilot valve is moveably arranged for controlling a fluid flow through the base wall opening, and an electro-mechanical actuator configured to act on the pilot valve for controlling the main valve via the pilot valve. A method for adjusting the axial position of a cylindrical main valve of a fluid control valve is also provided. 1. A fluid control valve comprising a cylindrical housing with at least one opening through a housing wall , a cylindrical main valve axially movably arranged inside the housing for controlling a fluid flow through the at least one opening and a main valve spring member acting on the main valve , wherein the main valve comprises a base wall defining a fluid control volume and fluid main volume in the cylindrical housing , that the base wall comprises an opening for fluidly connecting the fluid control volume with the fluid main volume , that the fluid control valve further comprises:a pilot valve positioned at the base wall opening, which pilot valve is moveably arranged for controlling a fluid flow through the base wall opening; andan electro-mechanical actuator configured to act on the pilot valve for controlling the main valve via the pilot valve.2. The fluid control valve according to claim 1 , wherein the cylindrical housing comprises a fluid drain outlet for draining fluid from the control volume.3. The fluid control valve ...

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Номер записи: 71
22-02-2018 дата публикации

RIGHT ANGLE VALVE

Номер: US20180051820A1
Автор: HUANG CHI-CHE
Принадлежит:

A right angle valve includes a valve body having a cavity, a first pipe and a second pipe connected therewith; a fixing member fixed to the valve body, having a combining end inserted into the cavity; a disc spring having one end combined to the combining end and the other end connected with a sealing member for sealing an inner end of the first pipe; a cover body fixed on one end of the valve body away from the first pipe; a piston member slidingly disposed in the cover body with one end thereof combined to the sealing member, and a covering measure. When the piston member drives the sealing member to move away from the inner end of the first pipe to enable the air flow, the covering measure covers the disc spring, preventing the disc spring from exposure to the flowing air, avoiding an obstruction. 1. A right angle valve , comprising:a valve body including a cavity and a first pipe and a second pipe connected with the cavity;a fixing member fixed to the valve body, the fixing member provided with a combining end inserted into the cavity;a disc spring with one end thereof combined to the combining end and the other end thereof connected with a sealing member for sealing an inner end of the first pipe;a cover body fixed to an end of the valve body away from the first pipe;a piston member slidingly disposed in the cover body, one end of the piston member combined to the sealing member; anda covering measure, the covering measure covering the disc spring when the piston member drives the sealing member to move away from the inner end of the first pipe to allow an air inflow, such that the disc spring is prevented from being exposed to the flowing air.2. The right angle valve of claim 1 , wherein the covering measure includes a sleeve claim 1 , the sleeve comprising a fixing end and a free end claim 1 , the fixing end fixedly combined with the fixing member claim 1 , the free end surrounding the combining end of the fixing member and the disc spring.3. The right angle ...

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Номер записи: 72
10-03-2022 дата публикации

LIQUID DISPENSING SYSTEM WITH PRESSURIZED AIR OPERATED LIQUID CONTROL PISTONS

Номер: US20220072569A1
Автор: Camic Edward, Coplin Thomas L.
Принадлежит:

A modular liquid distribution system in which each module has a module body, a spray nozzle, and a piston for controlling the dispensing of liquid from the nozzle. Each module has a pneumatically operated system for moving the piston to an open position while facilitating quicker return movement to a closed position, enabling the dispensing of precisely controlled small droplet sized quantities of highly viscous liquids. 1. A spray nozzle assembly comprising:{'b': 20', '22', '20', '50', '52, 'a nozzle support body () having a liquid supply port () for coupling to a liquid supply, said nozzle support body () further having an air supply port () for coupling to a pressurized air supply and air outlet port ();'}{'b': 30', '20, 'a spray nozzle () supported by said nozzle support body ();'}{'b': 32', '32', '34', '20', '32', '31', '30, 'i': 'a', 'a piston () having said piston head () supported for movement in an opening () of said nozzle support body () with a downstream end of the piston () being selectively engageable with a spray nozzle liquid supply inlet () for controlling the flow of liquid to and discharge from said spray nozzle ();'}{'b': 35', '36', '34', '32', '32, 'i': 'a', 'a return spring () supported within a spring chamber () in said nozzle support body opening () on an upstream side of said piston head () for biasing said piston () to a spray nozzle liquid supply inlet closing position;'}{'b': 34', '42', '32', '36, 'i': 'a', 'said nozzle body opening () defining a piston chamber () on a downstream side of said piston head () opposite of said spring chamber ();'}{'b': 20', '43, 'said nozzle support body () having an air passage system communicating with a control valve (),'}{'b': 43', '50', '42', '32', '35', '30', '50', '42', '42', '36', '52', '32', '35, 'said control valve () being selectively operable (1) for enabling communication of pressurized air from said nozzle support body air supply port () to said piston chamber () for moving said piston () to a ...

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Номер записи: 73
05-03-2015 дата публикации

BELLOWS VALVE WITH VALVE BODY CYLINDER ADAPTER

Номер: US20150060708A1
Автор: Glime, III William H.
Принадлежит:

A valve having a valve body with a valve cavity that receives an axially extensible member, for example, a bellows. An adapter has a diameter that is less than the diameter of the valve cavity and greater than the diameter of the extensible member, so that the adapter is disposed between the valve body and the extensible member. The adapter forms a valve body compression seal and a compression seal for the extensible member. Use of the adapter allows a common valve body to be used with different sized bellows of different lengths and diameters as needed, as well as facilitates easy installation and replacement of the bellows. 1. A valve , comprising:a valve body, said valve body comprising a valve cavity, a first flow passageway that extends from said valve cavity to a first fluid port, a second flow passageway that extends from said valve cavity to a second fluid port,a valve member subassembly disposed at least partially within said valve cavity, said valve member subassembly comprising a hollow extensible member having a first end that is attached to a valve closure element and a second end that is attached to a support ring,an adapter having a first end that seals against said support ring and a second end that seals against said valve body to provide a sealed cavity that provides a fluid flow path between said first flow passageway and said second flow passageway when the valve is in an open position.2. The valve of wherein said hollow extensible member comprises a bellows.3. The valve of wherein said bellows is attached at said first end by a weld to said valve closure element and is attached at said second end by a weld to said support ring.4. The valve of wherein said valve closure element comprises a valve seat.5. The valve of in combination with a valve actuator.6. The valve of wherein said valve actuator comprises a pneumatic actuator claim 5 , a hydraulic actuator claim 5 , a manual actuator or an electro-magnetic actuator.7. The valve of wherein said ...

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Номер записи: 74
05-03-2015 дата публикации

SPRUNG GATE VALVES MOVABLE BY A SOLENOID ACTUATOR

Номер: US20150060709A1
Автор: Fletcher David E., Gilmer Matt, Graichen Brian M., Miller James H.
Принадлежит: DAYCO IP HOLDINGS, LLC

A sprung gate for a valve having an endless elastic band sandwiched between first and second gate members that each define an opening therethrough in an open position portion thereof, which collectively form a passage through the sprung gate. The first gate member includes a fastener connected to a fastener receiving member of the second gate member thereby securing the first and second gate members together as a unit. This sprung gate unit is operatively connected to an actuator for linear translation within a pocket of a conduit to control fluid flow through the conduit. This assembled device may be manufactured using spin welding to sealingly mate the conduit to a housing enclosing the actuator. 1. A sprung gate for a valve comprising:an endless elastic band having an inner perimeter defining at least a first open space; anda first gate member and a second gate member each defining an opening therethrough in an open position portion thereof;wherein the endless elastic band is sandwiched between the first and second gate members with the open space thereof oriented for alignment with the opening in both of the first and second gate members, which are aligned to form a passage through the sprung gate; andwherein the first gate member includes a fastener connected to a fastener receiving member of the second gate member thereby securing the first and second gate members together.2. The sprung gate of claim 1 , wherein the fastener is a latch and the fastener receiving member is a detent in the second gate member.3. The sprung gate of claim 1 , wherein the first gate member includes a first fastener at a trailing end thereof and a second fastener at a leading end thereof claim 1 , and the second gate member includes a first fastener receiving member positioned for alignment with the first fastener and a second fastener receiving member positioned for alignment with the second fastener.4. The sprung gate of claim 1 , wherein the first endless elastic band spaces the ...

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Номер записи: 75
03-03-2016 дата публикации

SHUT-OFF DEVICE AND GATE VALVE WITH A SHUT-OFF DEVICE

Номер: US20160061335A1
Автор: Puetz Robert, Wirtz Ingo
Принадлежит:

The invention relates to a shut-off device for valve systems of industrial plants, in particular of chemical and petrochemical plants, with a disc () to shut off an opening for a fluid flow and with a seal seat (). The invention is characterised in that the disc () is arranged between the seal seat and a pressing means () to subject the disc () to a pressing force and can be pressed by the pressing means () against the seal seat (), wherein the pressing means () has in a housing () a plurality of pistons () and a transmission element for transmitting the pressing force to the disc (), the transmission element being arranged between the pistons () and the disc () and extending along the disc circumference, and wherein the pistons () are fluidically connected by a feed line () for hydraulic fluid. 1. Shut-off device for valve systems of industrial plants , in particular of chemical and petrochemical plants , said shut-off device comprising:{'b': '12', 'a disc () to shut off an opening for a fluid flow; and'}{'b': '13', 'i': 'a', 'a seal seat (),'} [{'b': 12', '26', '12', '12', '13, 'i': 'a', 'the disc () is arranged between the seal seat and a pressing means () to subject the disc () to a pressing force that presses the disc () against the seal seat ();'}, {'b': 26', '10', '48', '12', '48', '12', '12, 'the pressing means () comprises, in a housing (), a plurality of pistons () and a transmission element for transmitting the pressing force to the disc (), the transmission element being arranged between the pistons () and the disc () and extending along a circumference of the disc (); and'}, {'b': 48', '49, 'the pistons () are fluidically connected by a feed line () for hydraulic fluid.'}], 'wherein25051125248. Shut-off device according to claim 1 , wherein the transmission element comprises a ring () claim 1 , of which the first end face () lies against the disc () and of which the second end face () is connected to the pistons ().34812. Shut-off device according to ...

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Номер записи: 76
01-03-2018 дата публикации

Hydraulic Regulating Device

Номер: US20180058442A1
Автор: Joechle Ralf, Raschendorfer Steffen, Utler Andreas, Wiefel Rolf
Принадлежит:

A hydraulic regulating device includes a continuously adjustable regulating valve with a control piston. The control piston is displaceable in a first direction in which a connection of a pump port to an actuating-pressure port is configured to be controlled to open. The control piston is also displaceable in a second direction in which a connection of the actuating-pressure port to a tank port is configured to be controlled to open. In the first direction, the pump pressure acts on the control piston, and in the second direction, a control pressure and a spring act on the control piston. During movement of the control piston in the first direction, a damping connection, equipped with a damping nozzle, from the pump port to the tank port is configured to be controlled to open. 1. A hydraulic regulating device , comprising:a continuously adjustable regulating valve with a control piston, the control piston displaceable in (i) a first direction in which a connection of a pump port to an actuating-pressure port is configured to be controlled to open and (ii) a second direction in which a connection of the actuating-pressure port to a tank port is configured to be controlled to open,wherein the pump pressure acts on the control piston in the first direction,wherein a control pressure and a spring act on the control piston in the second direction, andwherein, during movement of the control piston in the first direction, a damping connection, equipped with a damping nozzle, from the pump port to the tank port is configured to be controlled to open.2. The regulating device according to claim 1 , wherein claim 1 , during movement of the control piston in the first direction claim 1 , the connection from the pump port to the actuating-pressure port is controlled to open before the damping connection is controlled to open.3. The regulating device according to claim 1 , wherein the control pressure is tapped off from the pump port via a nozzle and is configured to be reduced ...

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Номер записи: 77
02-03-2017 дата публикации

INDEXER CONTROLLED DIRECTIONAL VALVE SYSTEM

Номер: US20170059045A1
Автор: Fuad Michael, Longfield Colin Arthur, Montiel Edgar Jose, Smith Mark, Ullrich Abbigail
Принадлежит:

A technique enables mechanical control of a directional valve. The technique may utilize a system comprising a directional valve which is mechanically actuatable between a plurality of flow positions. The directional valve is mechanically coupled with an indexer mechanism. The indexer mechanism may be shifted to a plurality of desired indexer positions defined by a cam track. As the indexer mechanism is shifted between indexer positions, the mechanical link between the indexer mechanism and the directional valve mechanically shifts the directional valve to selected flow positions of the plurality of flow positions. 1. A system for controlling flow , comprising:a directional valve which is mechanically actuatable between a plurality of flow positions;an actuator member mechanically coupled to the directional valve to mechanically shift the directional valve; andan indexer mechanism coupled to the actuator member, the indexer mechanism being hydraulically controlled to shift the actuator member, and thus the directional valve, to desired positions corresponding with select flow positions of the plurality of flow positions.2. The system as recited in claim 1 , wherein the indexer mechanism comprises a cam track having a plurality of indexer positions.3. The system as recited in claim 2 , wherein the cam track comprises a reset track portion to enable resetting of the indexer mechanism to an initial indexer position.4. The system as recited in claim 1 , wherein the directional valve comprises a spool valve.5. The system as recited in claim 1 , wherein the directional valve controls flow of fluid between a plurality of hydraulic lines.6. The system as recited in claim 1 , wherein the directional valve controls flow of fluid between four hydraulic lines.7. The system as recited in claim 1 , wherein the indexer mechanism may be set to at least three indexer positions.8. A well system claim 1 , comprising:a well tool shiftable to a plurality of positions via hydraulic ...

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Номер записи: 78
02-03-2017 дата публикации

DELAY VALVE FOR A HYDRAULIC WORK SUPPORT

Номер: US20170059047A1
Автор: GOENTZEL DANIEL LEE, Luthi Aaron Vernon, Yotz Gregory A.
Принадлежит: VEKTEK, INC.

An unclamp delay valve for delaying release of hydraulic pressure in a hydraulic holding device. The unclamp delay valve may have a check valve allowing fluid to flow between an inlet port and an outlet port when held open by a piston translatable within a piston chamber. The check valve blocks fluid from flowing between the outlet port and the inlet port when released due to hydraulic fluid filling the piston chamber and translating the piston away from the check valve. To reopen the check valve, hydraulic pressure is released via the inlet port and slowly drains from a small orifice fluidly coupling the piston chamber and the inlet port, causing the piston to return to again open the check valve. A delay is thus created by the time it takes for the piston chamber to drain, thus opening the check valve to release hydraulic pressure therethrough. 1. A delay valve configured for delaying release of hydraulic pressure in a hydraulic holding device , the delay valve comprising:a housing forming an inlet port, an outlet port, and a piston chamber, wherein the inlet port is selectively fluidly coupled with the piston chamber, and the inlet port is selectively fluidly coupled with the outlet port;a check valve located between the inlet port and the outlet port, wherein the check valve is actuatable between an open configuration allowing fluid to flow therethrough and a closed configuration blocking fluid from flowing therethrough;a piston translatable within the piston chamber, the piston having a rod portion that engages and holds the check valve in the open configuration when the piston is in a first stroke position and releases the check valve to the closed configuration when the piston is hydraulically translated to a second stroke position via hydraulic fluid filling at least a portion of the piston chamber; anda flow control device operable to control flow of hydraulic fluid between the inlet port and the piston chamber, wherein the flow control device is integral ...

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Номер записи: 79
22-05-2014 дата публикации

NON-RISING STEM ACTUATOR

Номер: US20140137960A1
Автор: Adams Keith M., Cheatham Lloyd R.
Принадлежит: GE Oil & Gas Pressure Control LP

An apparatus for actuating a valve includes a housing having an axis, a valve end, a cap end, and a cylindrical sidewall defining an inner diameter surface of the housing. A cap is connected to the cap end of the housing. An inlet is located in one of the cap and the housing. A plate is positioned within the housing, the plate having an outer diameter that slidingly engages the inner diameter surface of the housing. The plate moves between an extended position and a retracted position in response to pressure media from the inlet. A down stop is in contact with the plate. A seal nut has a first end in engagement with the down stop. The seal nut has a second end with an end surface, the end surface being spaced apart from the cap when the plate is in the extended position. 1. An apparatus for actuating a valve , the apparatus comprising:a housing having an axis, a valve end, a cap end, and a cylindrical sidewall defining an inner diameter surface of the housing;a cap connected to the cap end of the housing;an inlet located in one of the cap and the housing;a plate positioned within the housing, the plate having a center portion and an outer diameter that slidingly engages the inner diameter surface of the housing, the plate moving between an extended position and a refracted position in response to pressure media from the inlet, the plate being nearer the valve end in the extended position than in the retracted position;a down stop in contact with the plate, the down stop being urged toward the valve end of the housing when the plate moves toward the extended position, and the down stop being operable to be connected to a valve stem for actuating the valve; anda seal nut with a first end in engagement with the down stop, the seal nut having a second end with an end surface, the end surface being spaced apart from the cap when the plate is in the extended position.2. The apparatus of claim 1 , further comprising:an orifice in a surface of the housing proximate to the ...

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Номер записи: 80
20-02-2020 дата публикации

LIQUID DISPENSING DEVICE HAVING A NOZZLE AND NEEDLE ASSEMBLY

Номер: US20200056721A1
Автор: Lam Chin Hung
Принадлежит:

A liquid dispensing device includes a body, a nozzle on an end of the body, a liquid container coupled to the body, and a piston configured to move in the body so as to control an ejection of liquid from the nozzle. The piston and the nozzle are configured to be detached from the body as an assembly. 1. A liquid dispensing device comprising:a body;a nozzle on an end of the body;a liquid container coupled to the body; anda piston configured to move in the body to control an ejection of a liquid from the nozzle,wherein the piston and the nozzle are configured to be detached from the body as an assembly.2. The liquid dispensing device of claim 1 , further comprising an actuating member that is configured to move relative to the body claim 1 , wherein the piston is removably coupled to the actuating member.3. The liquid dispensing device of claim 2 , wherein the piston is coupled to the actuating member with a turn-to-lock structure.4. The liquid dispensing device of claim 1 , wherein the nozzle is removably coupled to the body through a turn-to-lock structure.5. The liquid dispensing device of claim 1 , further comprising a feeding tube that is in fluid communication with the nozzle claim 1 , wherein the nozzle includes a liquid channel to which the feeding tube is removably coupled at an angle.6. The liquid dispensing device of claim 5 , wherein the feeding tube includes a first part and a second part that is removably coupled to the first part claim 5 , wherein the second part is at least partially inserted in the liquid container claim 5 , and wherein the first part is removably coupled to the nozzle.7. The liquid dispensing device of claim 6 , wherein the first part of the feeding tube extends substantially perpendicularly to the liquid channel of the nozzle.8. The liquid dispensing device of claim 5 , wherein the nozzle includes an annular part defining a liquid outlet claim 5 , and an elongated part coupled to the annular part and defining at least a part of the ...

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Номер записи: 81
04-03-2021 дата публикации

Gate Valve Device

Номер: US20210062921A1
Автор: Saitou Shuuji
Принадлежит: ULVAC, INC.

A gate valve has a communication block with a communication passage and a valve unit having a valve plate movable between a partitioning position and an open position. A lower end part of the valve plate comes into pressurized contact with a surface of a band-shaped base material transferred through the communication passage between a first chamber and a second chamber. Due to a force of this pressurized contact, a back surface of the base material is seated on a seating surface provided in the communication passage. A groove is formed in the lower end of the valve plate, and a roller-shaped sealing member with a central shaft is inserted into the groove. Opening parts are formed in both axial side-wall surfaces of the groove such that the end parts of the central shaft of the sealing member are inserted into the opening parts and pivotally supported with a clearance. 1. A gate valve device interposed between , and adapted to partition , a first chamber and a second chamber which are in communication with each other , the gate valve device comprising:a communication block having a communication passage allowing the first chamber and the second chamber to come into communication with each other; and a valve unit having a valve plate movable forward and backward between a partitioning position in which the valve plate gets seated on a seating surface provided in the communication passage to thereby close the communication passage, and an open position in which the valve plate is away from the seating surface such that a lower end part of the valve plate comes into pressurized contact with a surface of a band-shaped base material that is transferred through the communication passage between the first chamber and the second chamber and that, due to a force of this pressurized contact, a back surface of the base material is seated on the seating surface;wherein the valve unit has: provided that a moving direction of the valve plate from the open position to the ...

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Номер записи: 82
02-03-2017 дата публикации

BACK PRESSURE CONTROL REGULATOR WITH IN-LINE OVERPRESSURE RELIEF

Номер: US20170060147A1
Автор: Muir Gordon C.
Принадлежит:

A back pressure regulator with in-line over pressure relief includes a first pressure regulator and a second pressure regulator arranged fluidly in parallel, which are connected by a common regulator housing. 1. A back pressure regulator comprising:a first pressure regulator and a second pressure regulator arranged fluidly in parallel and connected by a common regulator housing.2. The back pressure regulator of claim 1 , wherein the first pressure regulator has a first flow capacity and the second pressure regulator has a second claim 1 , higher flow capacity.3. The back pressure regulator of claim 1 , wherein the second pressure regulator is activated at or above a maximum fluid pressure setting of the first pressure regulator.4. The back pressure regulator of claim 1 , wherein the common regulator housing includes a fluid inlet and a fluid outlet claim 1 , a first pressure regulator passageway claim 1 , and a second pressure regulator passageway.5. The back pressure regulator of claim 4 , wherein the first pressure regulator passageway has a lower flow capacity than the second pressure regulator passageway.6. The back pressure regulator of claim 5 , wherein the first pressure regulator passageway has a flow capacity of about 50 SCFM at about 1800 psi to about 100 SCFM at about 2300 psi.7. The back pressure regulator of claim 4 , wherein the first pressure regulator passageway has a first pressure regulator inlet having a first cross-sectional area claim 4 , and the second pressure regulator passageway has a second pressure regulator inlet having a second cross-sectional area claim 4 , the second cross-sectional area being larger than the first cross-sectional area.8. The back pressure regulator of claim 7 , wherein the first pressure regulator passageway includes a first pressure regulator outlet claim 7 , the first pressure regulator outlet having a cross-sectional area that is larger than a cross-sectional area of the first pressure regulator inlet.9. The back ...

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Номер записи: 83
12-03-2015 дата публикации

Hybrid Manual and Hydraulic Actuator Override

Номер: US20150069275A1
Автор: Adams Keith, Herman Christopher Taylor, Saleem Fauad, Viator Mark Anthony
Принадлежит: GE Oil & Gas Pressure Control LP

An apparatus for overriding a valve actuator to move a valve stem to a second position includes an override body with a central axis. A piston is located within the override body. A bushing is non-rotatably carried within the override body. An override shaft is in threaded engagement with the bushing and extends through a sealed orifice in the override body. Fluid pressure applied to the piston causes the bushing to engage the valve actuator and push the valve stem, and alternatively, rotation applied to the override shaft causes the bushing to move linearly to engage the valve actuator and push the valve stem. 1. An apparatus for overriding a valve actuator to move a valve stem from a first position to a second position , the apparatus comprising:an override body with a central axis;a piston located within the override body;a bushing non-rotatably carried within the override body; andan override shaft in threaded engagement with the bushing and extending through a sealed orifice in the override body; whereinfluid pressure applied to the piston causes the bushing to engage the valve actuator and push the valve stem, and alternatively, rotation applied to the override shaft causes the bushing to move linearly to engage the valve actuator and push the valve stem.2. The apparatus of claim 1 , wherein:the override body has an inner cavity with at least one axially extending guide slot within the inner cavity; andthe bushing has at least one anti-rotation pin that extends into one of the at least one guide slot to prevent relative rotational movement between the bushing and the override body.3. The apparatus of claim 1 , wherein:the bushing has an axially extending receptacle with internal threads; andthe override shaft has an end with external threads that mate with the internal threads of the receptacle so that rotation of the override shaft is translated to axial movement of the bushing.4. The apparatus of claim 1 , wherein:the bushing has an axially extending ...

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Номер записи: 84
28-02-2019 дата публикации

ACTUATOR

Номер: US20190063635A1
Автор: Sundararajan Alagarsamy
Принадлежит:

A valve actuator assembly having an actuator housing coupled to a bonnet and a housing lid. A hydraulic cylinder is positioned within the actuator housing and directly coupled to the bonnet. A piston is positioned within the hydraulic cylinder and coupled to a spring lifter assembly and a spring is positioned within the actuator housing and having a first end and a second end, the first end being coupled to a lower surface of the housing lid, and the second end being coupled to the spring lifter assembly. An operating stem is coupled to the piston and positioned in a channel extending through the bonnet to a valve body assembly. 1an actuator housing coupled to a bonnet and a housing lid;a hydraulic cylinder positioned within the actuator housing and coupled to the bonnet;a piston positioned within the hydraulic cylinder and coupled to a spring lifter assembly;a spring positioned within the actuator housing and having a first end and a second end, the first end coupled to a lower surface of the housing lid, and the second end coupled to the spring lifter assembly; andan operating stem coupled to the piston, positioned in a channel, and extending through the bonnet to a valve body assembly.. A valve actuator assembly comprising: This application is a continuation of U.S. patent application Ser. No. 15/726,817, filed Oct. 6, 2017, and entitled “Actuator”, which is a continuation of U.S. patent application Ser. No. 14/486,559, filed Sep. 15, 2014, and entitled “Actuator”, which issued on Dec. 12, 2017, as U.S. Pat. No. 9,841,117, which claims priority to U.S. Provisional Patent Application No. 61/878,838, filed Sep. 17, 2013, and entitled “Actuator”. The content of each of the above applications is hereby incorporated by reference.The present invention relates generally to actuators and, in a particular embodiment, to an apparatus and method for an improved actuator.Actuators are well known in the art to control fluid within valve assemblies. Specially, actuators are ...

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Номер записи: 85
10-03-2016 дата публикации

VALVE ARRANGEMENT

Номер: US20160069471A1
Автор: Ewers Benny, Ivarsson Simon, LARSSON FREDRIK
Принадлежит:

A valve arrangement comprising a valve housing, a pilot chamber, a main valve member and a control valve member. The main valve member is axially movably arranged in the valve housing and is arranged to restrict a main fluid flow. The control valve member is movable in an axial direction relative the main valve member in response to an actuating force acting on the control valve member. The control valve member is arranged to interact with the main valve member to define axially separated pilot and bypass fluid restrictions. The pilot restriction restricts a pilot fluid flow out from the pilot chamber. The bypass restriction restricts a bypass flow bypassing the main fluid flow. The bypass flow is separate from the pilot fluid flow. The pilot and bypass restrictions are adjustable in response to the actuating force, thereby allowing simultaneous adjustment of the pilot pressure and the bypass fluid flow. 11101201301401. A valve arrangement (; ; ; ; ) for a shock absorber , said valve arrangement comprising:{'b': 2', '202', '6', '7', '206', '207, 'a valve housing (; ) comprising a first and a second port (, ; , )'}{'b': 3', '203', '403, 'a pilot chamber (; ; ) being in fluid communication with said first and/or second port, wherein a pilot pressure (Pp) is defined by a hydraulic pressure in said pilot chamber;'}{'b': 4', '104', '204', '304', '404', '504', '8', '108', '208', '408', '9', '109', '209, 'a main valve member (; ; ; ; ; ) being axially movably arranged in said valve housing and being arranged to interact with a main valve seat (; ; ; ) of said valve housing in order to restrict a main fluid flow (; ; ) between said first and second ports in response to said pilot pressure acting on said main valve member;'}{'b': 5', '205', '305', '405', '15', '215', '339', '415', '16', '216', '338', '416, 'a control valve member (; ; ; ) being movable in an axial direction relative said main valve member in response to an actuating force acting on said control valve member, ...

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Номер записи: 86
11-03-2021 дата публикации

VALVE WITH INTERNAL MEMBER

Номер: US20210069456A1
Автор: Arrowsmith Mark John, JOHNSON Sophia Adele, Partington Andrew John
Принадлежит:

A valve with an internal member is disclosed which allows exhaled carbon dioxide to escape from a breathing circuit when the circuit gas pressure drops below a threshold pressure. The valve operates by occluding one or more ports under a relatively high pressure and opening the one or more ports under a relatively low pressure. The internal member is attached to the body of the valve at two or more locations on the internal member. The internal member moves in a direction perpendicular to the gas flow through the valve. 1. A valve configured for use in positive airway pressure therapy , the valve comprising:a tubular body with an interior surface and an exterior surface, the interior surface surrounding a passageway through which fluids can flow;one or more ports comprising through holes in the body that extend from the interior surface to the exterior surface such that the passageway is in fluid communication with an environment through the ports; andat least one internal member attached to the body at two or more discontinuous attachment positions on the internal member,wherein the at least one internal member comprises an elongate ribbon that is apposed to the ports of the valve, the internal member having an open configuration in which the elongate ribbon curves away from the interior surface of the body and a closed configuration in which the elongate ribbon abuts the interior surface to occlude the ports.2. The valve of claim 1 , wherein the interior surface is curved.3. The valve of claim 1 , wherein the interior surface is curved claim 1 , and wherein the elongate ribbon curves with the interior surface in the closed configuration of the at least one internal member.4. The valve of claim 1 , wherein the at least one internal member is configured to progressively roll over the interior surface of the body.5. The valve of claim 1 , wherein the at least one internal member transitions between the open configuration and the closed configuration at a distinct ...

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Номер записи: 87
28-02-2019 дата публикации

Hybrid Flow and Pressure Regulation

Номер: US20190064856A1
Автор: Boyer Robert, HENDERSON John
Принадлежит:

A hybrid pressure and flowguage regulator apparatus includes a regulator body, an inlet, and an outlet assembly. The outlet assembly includes a first orifice of a first size, a second orifice of a second size that is larger than the first size, and a mechanism that automatically moves the first orifice between a first position and a second position. When the first orifice is in the first position, the flow of gas passes through both the first orifice and second orifice. When the first orifice is in the second position, the flow of gas bypasses the first orifice and flows through the second orifice with a specific flow rate or a second pressure that is less than the first pressure. The apparatus may also include a gauge that provides a visual indication of both the specific flow rate and the second pressure. 1. An apparatus , comprising:a regulator body;an inlet configured to introduce a flow of gas into the regulator body under a first pressure; and a first orifice of a first size;', 'a second orifice of a second size that is larger than the first size; and', a first position wherein the flow of gas passes through both the first orifice and second orifice to the downstream gas line; and', 'a second position wherein the flow of gas bypasses the first orifice and flows through the second orifice to the downstream gas line with a specific flow rate or a second pressure that is less than the first pressure., 'a mechanism that automatically moves the first orifice between two distinct positions], 'an outlet assembly that directs the flow of gas from the regulator body into a downstream gas line, the outlet assembly comprising2. The apparatus of claim 1 , wherein the regulator body further comprises:a gauge that provides a visual indication of both the specific flow rate and the second pressure.3. The apparatus of claim 2 , wherein the gauge comprises:radial indicia with a first portion and a second portion, the first portion providing an indication of the specific flow ...

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Номер записи: 88
09-03-2017 дата публикации

Sanitary High Pressure Aerator Valve Assembly

Номер: US20170066589A1
Автор: Hall Aaron G., III Henry D., Rose Paul S., Smith Daniel S., Tiffany
Принадлежит: Control Concepts, Inc.

A sanitary high pressure valve assembly is provided. The valve assembly includes an inlet adaptor for admitting pressurized gas into a sanitary central passageway for release into a storage vessel containing granular material for the purpose of aiding flow of the granular material from the storage vessel. The valve assembly also includes an isolation chamber for housing serviceable parts that are isolated from the sanitary central passageway. 1. A sanitary high pressure aerator valve assembly comprising:a main body having substantially coaxial opposite ends;a coupling collar attachable to one end of the substantially coaxial opposite ends;an end cap attachable to the end opposite of the coupling collar end;an inlet adaptor attachable to the main body, wherein the inlet adaptor is substantially perpendicular to the substantially coaxial opposite ends;an air chamber comprising a central passageway disposed between the inlet adaptor and the coupling collar end; andwherein there are no non-aerodynamic parts disposed within the central passageway.2. A sanitary high pressure aerator valve assembly as in further comprising: a spring guide;', 'a spring guide O-ring disposed around the spring guide; and', 'a wiper seal abutting the spring guide., 'an air chamber isolation assembly for isolating the central passageway from the end opposite of the coupling collar end and forming an isolation chamber, wherein the air chamber isolation assembly comprises3. The sanitary high pressure aerator valve assembly as in further comprising: an enlarged head disposed at one end of the one-piece unitary piston member for sealing the coupling collar end of the air chamber; and', 'a threaded length end disposed at an end opposite the enlarged head end; and', 'wherein the threaded end is isolated from the central passageway by the air chamber isolation assembly., 'a one-piece unitary piston member slidable for a predetermined distance within a portion of the central passageway coaxial with the ...

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Номер записи: 89
08-03-2018 дата публикации

CONTROL VALVE

Номер: US20180066765A1
Автор: NARUKAWA Bunta
Принадлежит:

[Object] Provided is a control valve capable of ensuring controllability in both flows without increasing the number of parts. 1. A control valve comprising:a valve body which is provided with a main valve chamber and first and second inlet/outlets and in which a bottom portion opening and first and second side portion openings are opened to the main valve chamber:a main valve body which is disposed in the main valve chamber to be elevatable relative to the bottom portion opening in order to control a flow rate of a fluid flowing in the bottom portion opening; andan elevation drive source which elevates the main valve body relative to the bottom portion opening,wherein differential pressure valves operated in response to a front/rear differential pressure are respectively disposed between the first inlet/outlet and the first side portion opening, between the second inlet/outlet and the second side portion opening, between the first inlet/outlet and the bottom portion opening, and between the second inlet/outlet and the bottom portion opening inside the valve body so that a fluid pressure acting on the main valve body becomes the same in a flow in both directions including one direction from the first inlet/outlet to the second inlet/outlet through the main valve chamber and the other direction from the second inlet/outlet to the first inlet/outlet through the main valve chamber.2. The control valve according to claim 1 ,wherein a first side portion differential pressure valve allowing a fluid to flow only in a direction from the first inlet/outlet to the first side portion opening or the opposite direction in response to a differential pressure between the first inlet/outlet and the first side portion opening is disposed between the first inlet/outlet and the first side portion opening inside the valve body,wherein a second side portion differential pressure valve allowing a fluid to flow only in a direction from the second inlet/outlet to the second side portion ...

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Номер записи: 90
27-02-2020 дата публикации

TOP COVER FOR A SOFT THROTTLING VALVE BODY, SOFT THROTTLING VALVE AND METHOD FOR ASSEMBLING A SOFT THROTTLING VALVE

Номер: US20200063887A1
Автор: Fabricius Torben Schack, Kanajam Rajakumar, Matzen Detlef, Venkatesh Raghavendra, Vestergaard Niels P.
Принадлежит:

The present invention relates to a top cover () for soft throttling valve body (), the top cover () comprising one or more fluid conduits for transferring a pilot fluid flow for setting a degree of opening of a main valve situated in a soft throttling valve body to the soft throttling valve body. Furthermore, the invention relates to a soft throttling valve () and a method for assembling the soft throttling valve (). The object of the invention is to allow a good control of the pilot fluid flow while protecting the soft throttling valve body from damage due to valve failure. The object is solved by having a follower arrangement arranged to throttle the pilot fluid flow depending on the degree of opening of the main valve, further having a manual opening arrangement for manually opening the main valve and/or by further preventing a step-wise opening of the main valve in less than two opening steps. A method for assembling a soft throttling valve is also disclosed. 1. A top cover for a soft throttling valve body , the top cover comprisingone or more fluid conduits for transferring a pilot fluid flow for setting a degree of opening of a main valve situated in the soft throttling valve body to the soft throttling valve body, whereinthe top cover comprises a follower arrangement arranged to throttle the pilot fluid flow, the follower arrangement being arranged to throttle the pilot fluid flow depending on the degree of opening of the main valve, wherein the top cover comprises at least two pilot valves wherein a first pilot valve can be opened in a first step and a second pilot valve can then be opened in a second step and the top cover further comprises a manual opening arrangement for manually opening the main valve and/or the top cover being adapted to prevent a step-wise opening of the main valve in less than two opening steps.2. The top cover according to claim 1 , whereinthe manual opening arrangement is arranged to actuate a follower element of the follower ...

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Номер записи: 91
09-03-2017 дата публикации

DISTRIBUTOR VALVE ASSEMBLY

Номер: US20170068254A1
Автор: Ferraro Giovanni, Hero Alexander, Schlingmeier Daniel, Stoll Manuel
Принадлежит:

Distributor valve assembly () comprising a proportioning valve () and a pressure compensator (). A control piston () adjusts the flow cross sections through a first compensator throttle () and through a second compensator throttle () by longitudinal movement thereof. 1110301013141510141513303231343531323435341435153034363635373730323636aaab. A distributor valve assembly () comprising a proportioning valve () and a pressure compensator () , said proportioning valve () having an inlet channel () , a first outlet channel () and a second outlet channel () , wherein the proportioning valve () is configured to divide , between the first outlet channel () and the second outlet channel () , a mass flow of a working medium flowing through the inlet channel () , wherein the pressure compensator () comprises a control piston () that is disposed in a housing () in a longitudinally movable manner , wherein a first control chamber () and a second control chamber () are formed in the housing () , wherein the control piston () delimits the first control chamber () and the second control chamber () , wherein the first control chamber () is hydraulically connected to the first outlet channel () and the second control chamber () to the second outlet channel () on an inlet side of the pressure compensator () , wherein the first control chamber () is configured to be hydraulically connected to a first compensator outlet () via a first compensator throttle () and the second control chamber () to a second compensator outlet () via a second compensator throttle () on an outlet side of the pressure compensator () , and wherein the control piston () adjusts flow cross sections through the first compensator throttle () and through the second compensator throttle () by means of the longitudinal movement thereof.21325152. The distributor valve assembly () according to claim 1 , characterized in that the control piston () is preloaded between a first preload spring () and a second preload spring ...

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Номер записи: 92
11-03-2021 дата публикации

APPARATUS, SYSTEMS, AND METHODS FOR CONTROLLING VALVE ACTUATION SPEED

Номер: US20210071776A1
Автор: Hoang Loc G., Maciejko Margaret Anne
Принадлежит:

A valve actuator for a valve is disclosed, including an actuator housing with a reciprocation axis and a piston configured to reciprocate within the actuator housing along the reciprocation axis. The actuator housing has a port and a chamber disposed between the piston and a portion of the actuator housing with the port for fluid communication with the port of a working fluid. A piston projection or piston recess in the chamber is moveable with the piston to reduce a flow area in the chamber that causes a reduction in speed of the piston prior to reaching a stop position. 1. A valve actuator comprising:an actuator housing with a reciprocation axis;a piston configured to reciprocate within the actuator housing along the reciprocation axis;a port in the actuator housing;a chamber disposed between the piston and a portion of the actuator housing with the port for fluid communication with the port of a working fluid; anda piston projection or piston recess in the chamber and moveable with the piston to reduce a flow area in the chamber that causes a reduction in speed of the piston prior to reaching a stop position.2. The valve actuator of wherein the projection is extendable into the port.3. The valve actuator of wherein the projection is extendable into a second port in the chamber.4. The valve actuator of wherein the recess is a reduced diameter portion of the piston.5. The valve actuator of wherein the port intersects the chamber perpendicular to the reciprocation axis.6. A valve for stopping and starting the flow of a process fluid claim 1 , the valve comprising:a valve housing including a flow passage;a gate configured to slide within the housing to open or close the flow passage; an actuator housing having a reciprocation axis;', 'a piston configured to move within the actuator housing along the reciprocation axis;', 'a chamber disposed between the piston and a portion of the actuator housing;', 'a port in the actuator housing for working fluid communication with ...

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Номер записи: 93
11-03-2021 дата публикации

PRESSURE REGULATOR FOR FUEL CELL SYSTEM

Номер: US20210072774A1
Автор: Jung Se Kwon
Принадлежит:

A pressure regulator for a fuel cell system may include: a housing having an inlet port into which gas is introduced, an outlet port through which gas is discharged, and an regulated pressure chamber connected to an outside through the outlet port; a piston moving up and down in the housing, having a main flow path penetrating through an inside of the housing and a pressure acting portion applying a pressure of gas in the regulated pressure chamber of the housing, and selectively communicating between the inlet port and the regulated pressure chamber of the housing through the main flow path as the piston moves up and down; and a spring provided in the housing to elastically support the pressure acting portion of the piston on an opposite side of the regulated pressure chamber. 1. A pressure regulator for a fuel cell system , comprising: an inlet port into which gas is introduced,', 'an outlet port through which the gas is discharged,', 'a first cylinder portion having an regulated pressure chamber connected to an outside through the outlet port, and', 'a second cylinder portion having an inner diameter relatively smaller than an inner diameter of the first cylinder portion and provided with the inlet port;, 'a housing including a main flow path penetrating through an inside of the housing,', 'a pressure acting portion applying a pressure of gas in the regulated pressure chamber of the housing, and selectively communicating between the inlet port and the regulated pressure chamber of the housing through the main flow path as the piston moves up and down, and', 'a shaft portion;, 'a piston moving up and down in the housing, and includinga spring provided in the housing and configured to elastically support the pressure acting portion of the piston on an opposite side of the regulated pressure chamber;a support member screwed to an outer circumferential surface of the second cylinder portion;pillars provided to be supported on the support member; anda spring seat ...

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Номер записи: 94
19-03-2015 дата публикации

Actuator

Номер: US20150076378A1
Автор: Sundararajan Alagarsamy
Принадлежит:

A valve actuator assembly having an actuator housing coupled to a bonnet and a housing lid. A hydraulic cylinder is positioned within the actuator housing and directly coupled to the bonnet. A piston is positioned within the hydraulic cylinder and coupled to a spring lifter assembly and a spring is positioned within the actuator housing and having a first end and a second end, the first end being coupled to a lower surface of the housing lid, and the second end being coupled to the spring lifter assembly. An operating stem is coupled to the piston and positioned in a channel extending through the bonnet to a valve body assembly. 1. A valve actuator assembly comprising:an actuator housing coupled to a bonnet and an housing lid;a hydraulic cylinder positioned within the actuator housing and threadingly coupled to the bonnet;a piston positioned within the hydraulic cylinder and coupled to a spring lifter assembly,a spring positioned within the actuator housing and having a first end and a second end, the first end being in contact with a lower surface of the housing lid, and the second end configured to be in contact to the spring lifter assembly; andan operating stem coupled to the piston and positioned in a channel extending through the bonnet to a valve body assembly.2. The valve actuator assembly of claim 1 , wherein the actuator assembly further comprises a pressure compensator positioned externally and adjacent to the actuator housing.3. The valve actuator assembly of claim 1 , wherein the operating stem is coupled to a gate.4. The valve actuator assembly of claim 1 , wherein a stroke adjustment is positioned on the upper surface of the housing lid.5. The valve actuator assembly of claim 1 , wherein a packing gland is positioned between the operating stem and the bonnet.6. The valve actuator assembly of claim 5 , wherein the packing gland is threadably engaged with the bonnet.7. The valve actuator assembly of claim 1 , wherein a pressure compensator is positioned ...

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Номер записи: 95
17-03-2016 дата публикации

COUNTERBALANCE VALVE WITH DUAL OR TRIPLE PILOT RATIO

Номер: US20160076557A1
Автор: Zaehe Bernd
Принадлежит: SUN HYDRAULICS CORPORATION

Novel Counterbalance valves, more particularly, to counterbalance valves that provide hold, capture, and motion control benefits of prior art CB valves while improving upon one or more performance characteristics of current CB valves are herein disclosed. The novel counterbalance valves are useful, inter alia, for providing good system stability across a range of load pressures and/or reducing power consumption (improving energy efficiencies) as compared with prior art devices. 1. A counterbalance valve , comprising: a first end, a second end, and a longitudinal chamber therebetween;', 'a load port, a valve port, and a pilot port all of which are configured to communicate with the longitudinal chamber;', 'wherein in the open position a fluid passageway is established between the load port and the valve port, and in the closed position the load port is sealingly isolated from the valve port;', 'a piston positioned within the longitudinal chamber, the piston being longitudinally slidable along the longitudinal axis between an open position and a closed position,'}, 'an adjusting screw disposed within the longitudinal chamber, the adjusting screw configured for rotation about the longitudinal axis and threadably connected to an adjusting nut, the adjusting nut disposed within the longitudinal chamber, and slidable along the longitudinal axis between a minimum position and a maximum position;', 'a spring adjust spacer disposed within the longitudinal chamber along the longitudinal axis and abutting the adjusting nut; the spring adjust spacer slidable along the longitudinal axis between a minimum position and a maximum position;', 'an inner spring positioned within the longitudinal chamber along the longitudinal axis;', 'an outer spring positioned within the longitudinal chamber along the longitudinal axis;', 'a piston spacer disposed within the longitudinal chamber and positioned between the inner spring and the piston;', 'wherein the adjusting screw, adjusting nut, ...

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Номер записи: 96
15-03-2018 дата публикации

HYDRANT VALVE WITH INTERNAL SHUT-OFF VALVE

Номер: US20180073648A1
Автор: Wong Tak-Yiu
Принадлежит:

A hydrant valve with an internal automatic shut-off valve. The internal valve blocks communication between a piston chamber and a hydrant chamber when in a closed position. An upper valve opens the internal valve against its biasing force permitting the flow of fluid between the hydrant chamber and the piston chamber. The internal valve closes in response to a disconnection of the upper valve. 1. A hydrant valve comprising:a hydrant chamber having an inlet and an outlet;a piston in the hydrant chamber moveable between open and closed positions relative to the inlet and a chamber disposed within the piston in communication with the inlet and the hydrant chamber;an upper valve movable between open and closed positions relative to the outlet, the upper valve having a biasing member that biases the upper valve toward the closed position, in the closed position the upper valve restricts fluid flow through the outlet and in the open position the upper valve permits fluid flow through the outlet;an internal valve movable between open and closed positions in response to a movement of the upper valve, in the open position the internal valve permits fluid flow between the hydrant chamber and the piston chamber and in the closed position the internal valve restricts fluid flow between the hydrant chamber and the piston chamber.2. The hydrant valve of further comprising:a pilot valve movable between open and closed positions, in the open position the pilot valve allows flow between the inlet and the internal valve and in the closed position the pilot valve allows flow between the inlet and the piston chamber.3. The hydrant valve of claim 1 , wherein the valve further comprises an upper portion.4. The hydrant valve of claim 3 , wherein at least one frangible connector secures the upper portion.5. The hydrant valve of claim 1 , wherein the internal valve moves towards the closed position in response to the upper valve moving towards the closed position.6. The hydrant valve of ...

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Номер записи: 97
15-03-2018 дата публикации

Sanitary High Pressure Aerator Valve Assembly

Номер: US20180073659A1
Автор: Hall Aaron G., III Henry D., Rose Paul S., Smith Daniel S., Tiffany
Принадлежит: Control Concepts, Inc.

A sanitary high pressure valve assembly is provided. The valve assembly includes an inlet adaptor for admitting pressurized gas into a sanitary central passageway for release into a storage vessel containing granular material for the purpose of aiding flow of the granular material from the storage vessel. The valve assembly also includes an isolation chamber for housing serviceable parts that are isolated from the sanitary central passageway. 1. A sanitary high pressure aerator valve assembly comprising:a main body having substantially coaxial opposite ends;a coupling collar attachable to one end of the substantially coaxial opposite ends;an end cap attachable to the end opposite of the coupling collar end;an inlet adaptor attachable to the main body, wherein the inlet adaptor is substantially perpendicular to the substantially coaxial opposite ends;an air chamber comprising a central passageway disposed between the inlet adaptor and the coupling collar end; and a wave spring; and', 'a plurality of bushings disposed on either end of the wave spring for compressing the wave spring., 'an air isolation chamber, wherein the air isolation chamber comprises2. (canceled)3. The sanitary high pressure aerator valve assembly as in further comprising: an enlarged head disposed at one end of the one-piece unitary piston member for sealing the coupling collar end of the air chamber; and', 'a threaded end length disposed at an end opposite the enlarged head end and within the isolation chamber; and', 'wherein the threaded end is isolated from the central passageway by the air chamber isolation assembly., 'a one-piece unitary piston member slidable for a predetermined distance within a portion of the central passageway coaxial with the main body coaxial ends and the air isolation chamber; and wherein the one-piece unitary piston member comprises4. The one-piece unitary piston member as in wherein the one-piece unitary piston member further comprises a tension spring hole claim 3 , ...

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Номер записи: 98
07-03-2019 дата публикации

VALVE MANIFOLD

Номер: US20190072452A1
Автор: Johnson James G., Johnson John Leslie
Принадлежит:

A valve manifold includes a valve body carrying pairs of laterally spaced piston actuated valves controlled by control modules operative to selectively pressurize and exhaust an outlet port connected to a fluid device and configured in groupings permitting varying valve functionalities. 18-. (canceled)9. A method of detecting a leak in a test part comprising the steps of:pressurizing a high pressure line and a low pressure line with a high pressure pilot valve and a low pressure pilot valve, respectively, to close a high pressure valve and a low pressure valve, respectively;deenergizing an exhaust pilot valve and an isolation pilot valve to open an exhaust valve and an isolation valve, respectively;energizing one of the high pressure pilot valve and the low pressure pilot valve to open the high pressure valve and the low pressure valve, respectively;energizing the exhaust pilot valve to open the exhaust valve; andpressurizing a test part with high pressure air to detect a leak.10. The method as recited in wherein the step of deenergizing the exhaust pilot valve and the step of deenergizing the isolation pilot valve occur concurrently.12. The method as recited in wherein the step of energizing the one of the high pressure pilot valve and the low pressure pilot valve and the step of energizing the exhaust pilot valve occur concurrently.13. The method as recited in including monitoring pressure transients to determine if the test part leaks based on the pressure transient.14. The method as recited in including indicating if the test part has the leak.15. The method as recited in including denoting a pass condition or a fail condition of the test part.16. The method as recited in including denoting a pass condition or a fail condition with an indicator light.17. The method as recited in including mounting a test part in a test fixture.18. The method as recited in including initializing a control system and selecting a test protocol.19. The method as recited in including ...

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Номер записи: 99
16-03-2017 дата публикации

FLUID PRESSURE CONTROL DEVICE FOR CONSTRUCTION MACHINE

Номер: US20170074292A1
Автор: Fukuda Shunsuke, Yoshida Nobuyoshi
Принадлежит: KYB Corporation

A fluid pressure control device for a construction machine includes a first circuit system connected to the first pump; a second circuit system connected to the second pump; a switching valve having a normal position, a straight traveling position and a merging position where the working fluid of the branch section is merged into the second neutral passage; and an open/close mechanism configured to open/close the first neutral passage. In a case where at least one of the control valves, on which merging is required, on the downstream of the second traveling control valve is switched to a position other than the neutral position, by closing the first neutral passage by the open/close mechanism and switching the switching valve to the merging position, the working fluid of the first pump is merged into the working fluid of the second pump. 1. A fluid pressure control device for a construction machine including control valves that supply and discharge a working fluid supplied from a first pump and a second pump to and from actuators , the fluid pressure control device , comprising:a first circuit system connected to the first pump, the first circuit system having a first control valve group formed by a first traveling control valve and a first working control valve arranged on the downstream side of the first traveling control valve, a first neutral passage configured to return the working fluid of the first pump into a tank in a case where all the control valves of the first control valve group are placed at a neutral position, and a first parallel passage connected in parallel to the first control valve group;a second circuit system connected to the second pump, the second circuit system having a second control valve group formed by a second traveling control valve and a second working control valve arranged on the downstream side of the second traveling control valve, a second neutral passage configured to return the working fluid of the second pump into the tank in ...

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Номер записи: 100