Pilot Or Servo Controlled Patents (Class 137/485)
  • Patent number: 9714740
    Abstract: Current natural gas measurement and regulation systems are sensitive to loss of electrical power, which can cause brownouts and curtailment of power in the local area if power systems reliant on natural gas are downstream from the station. A system for regulating the flow of natural gas and for guaranteeing the flow of natural gas from a source to at least one specific flow line even when the system is not provided with electrical power may be described. Such a system may include at least one of each of: a low-pressure regulation system, a high-pressure regulation system, an inlet gas filter, a relief valve, a low select relay, a differential pressure pneumatic relay, a reset relay, a 5-way universal relay, an electromechanically operated valve, a first manual multi-way valve, a second manual multi-way valve, a high calibration valve, a low calibration valve, a filter, and/or a differential pressure measurement system.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 25, 2017
    Assignee: Instrument Solutions Inc.
    Inventor: Dean Koulogianes
  • Patent number: 9169939
    Abstract: This disclosure is related to a non-electronic pressure control system for a pressurized system that receives fluid from a fluid supply. The pressure control system includes a control module, an actuator and a flow control device. The control module monitors the pressure of fluid either upstream or downstream of the flow control device. The control module can send a pneumatic signal to the actuator to open or close the flow control device responsive to the pressure monitored by the control module and the pressure required for the pressurized system.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: October 27, 2015
    Inventors: Mike Lybarger, Jud Smalley
  • Publication number: 20150136249
    Abstract: A tank ventilation valve has a housing (21), a closing member (4), a sealing seat (5) and a first space (17). A second space (18) is connected to the first space (17) via a control opening (19) that surrounds the sealing seat (5). A spring (6) pretensions the closing member (4) against the sealing seat (5) and closes the control opening (19). The closing member (4) opens as a function of a pressure difference between the first and second spaces (17, 18). The opened closing member (4) opens the control opening (19) so that the first space (17) is connected to a first line (2) connects to fresh air. The second space (18) is connected to a second line (3) that is attachable to a filter. Structure is provided to exert a further negative pressure on the closing member (4) to move the closing member (4) into the open position.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Markus Timmer, Stephan Becker
  • Publication number: 20150114492
    Abstract: A pilot valve assembly for use with a main valve apparatus coupled to a water pipe, includes a differential pilot valve apparatus, and first and second pilot valve apparatuses. An inlet of the differential pilot valve is coupled to a junction and an outlet is coupled to the first pilot valve apparatus. The differential pilot valve is responsive to a pressure differential to open the differential pilot valve apparatus for water to flow to the first pilot valve apparatus and to close the differential pilot valve apparatus to inhibit water flow to the first pilot valve apparatus. The first pilot valve apparatus is responsive to a first pressure to close the first pilot valve to reduce flow of water therethrough. The second pilot valve apparatus is coupled to the junction to facilitate flow of water through the second pilot valve apparatus when the second differential valve member is in an open position.
    Type: Application
    Filed: December 31, 2013
    Publication date: April 30, 2015
    Applicant: SINGER VALVE, INC.
    Inventors: Kari Juhani Oksanen, Marc Norman Ferrer Payot
  • Publication number: 20150090352
    Abstract: An air-driven shutoff valve includes a valve seat formed in a main body, a valve element movable into or out of contact with the valve seat, a drive part integrally connected to the valve element, and a pilot opening/closing valve configured to supply compressed fluid to drive the drive part. The pilot opening/closing valve includes (a) a first needle valve, a first motor to change an opening degree of the first needle valve, and a first check valve allowing the compressed fluid to flow only from a pilot opening/closing valve side to a drive part side, and (b) a second needle valve, a second motor to change an opening degree of the second needle valve, and a second check valve allowing the compressed fluid to flow only from the drive part side to the pilot opening/closing valve side.
    Type: Application
    Filed: August 29, 2014
    Publication date: April 2, 2015
    Inventor: Yasunori NISHIMURA
  • Patent number: 8978682
    Abstract: A control system includes a first valve configured to block a fluid flow between a first section of a flow line and a second section of the flow line in response to a first emergency shut-off signal of a first signal type. A second valve is configured to block the second section of the flow line and a third section of the flow line in response to a second emergency shut-off signal of a second signal type, wherein the first signal type differs from the second signal type.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: March 17, 2015
    Assignee: Alstom Technology Ltd
    Inventors: Andreas Belzner, Dirk Matthes
  • Publication number: 20150059877
    Abstract: A mechanism for coupling motion of a piezoelectric actuator in axisymmetric devices like modulating proportional valves uses actuator extension motion to cause translation away from a mechanism mounting plane and thereby enables lifting open of a valve element instead of the usual pushing closed of the valve element. The mechanism does not contain any gears nor leadscrew threads, and in usual practice is constantly loaded, so apparent change of direction is achieved without mechanical backlash introducing hysteresis. The mechanism surrounds a piezoelectric stack actuator by contacting opposite ends of the piezoelectric stack, whereby extension motion lengthening the actuator causes a lifting portion of the mechanism to translate toward the bulk of the actuator while the proximally adjacent mounting portion of the mechanism remains at a fixed location.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 5, 2015
    Inventor: Kim Ngoc Vu
  • Publication number: 20150059874
    Abstract: A dual cartridge temperature control valve having a self-contained, top loading bonnet cartridge and a self-contained, bottom loading seat cartridge. The control valve body may include internally configured pressure channels configured to mate with the upstream and downstream pressure channels of a control valve actuator having internally integrated pressure channels.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Inventors: MARK R. LOVELESS, MELVIN HAL PARKS
  • Publication number: 20150040555
    Abstract: In a hydraulic drive of a tool, a piston is adapted to be acted upon by a pump via a pressure limiting seat valve and a parallel switching seat valve of a valve arrangement. A restriction is provided in a pressure line upstream of the pressure limiting seat valve which is connected to a tank on the flow-off side. A drain line leads from a working chamber of the piston via the switching seat valve to the tank. A closing side is adapted to be acted upon by pressure and an opening side is adapted to be acted upon by a force generated when the pressure limiting seat valve responds. The pump is adapted to be switched off when the maximum operating pressure has been reached, so that the piston will execute a return stroke. A pressure-increasing restriction is provided on the flow-off side of the pressure limiting seat valve.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Inventors: Georg ANEDER, Engelbert ZWINGLER
  • Publication number: 20140367616
    Abstract: A safety means for protecting a plant section located on the pressure side of a jet compressor connected with a propellant system against the exceedance of an admissible pressure, comprising a controlled safety valve actuated by external energy, whose control means measures is connected with the plant section to be protected via at least one pressure tapping line, wherein the safety valve is arranged such that upon exceedance of the pressure in the protected plant section it can vent propellant from the propellant system.
    Type: Application
    Filed: February 21, 2013
    Publication date: December 18, 2014
    Applicant: L'AIR LIQUIDE, SOCIÉTÉ ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCÉDÉS GEORGES CLAUDE
    Inventors: Alexander Roesch, Dieter Ulber, Ulrich Wolf
  • Publication number: 20140261719
    Abstract: A system and method for regulating a constant positive pressure differential within a container in order to maintain the waterproof integrity of the container. In one embodiment, the system for regulating a constant positive pressure differential within a container is comprised of a valve member, a control member, and an air supply member. In another embodiment, the system for regulating a constant positive pressure differential within a container is also comprised of a container member.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventor: Richard Todd Onysko
  • Publication number: 20140261746
    Abstract: A pressure regulator valve to replace the pressure regulator valve of a “factory installed” automotive transmission has a pressure regulator balance circuit provided internally within a first portion of the pressure regulator valve. The pressure regulator valve also has a decrease exhaust circuit provided internally within a second portion of the pressure regulator valve. One or more outer lands of the pressure regulator valve has a width greater than that of the outer land of the “factory installed” pressure regulator valve, and the pressure regulator valve has an inner land having a greater width than that of the inner land of the “factory installed” pressure regulator valve. The pressure regulator valve provides efficient pump control while providing support and stability greater than that provided by the “factory installed” pressure regulator valve.
    Type: Application
    Filed: September 11, 2013
    Publication date: September 18, 2014
    Inventor: Gilbert W. Younger
  • Publication number: 20140224343
    Abstract: A throttle housing having an inlet end and an outlet end includes a shuttle housing disposed within the throttle housing. The shuttle housing has a first end cap at a first end and an orifice array therethrough. The shuttle housing comprises a shuttle housing therein. The shuttle has an opened position and a closed position relative to the shuttle housing. The shuttle defines a varying control volume between the end cap, the shuttle and the shuttle housing. The control inlet fluidically communicates a control fluid to the control volume to control the position of the shuttle in the shuttle housing.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 14, 2014
    Inventors: Eli Oklejas, Jr., Jason B. Hunt
  • Publication number: 20140219821
    Abstract: A continuous run controller for a dual control compressor system includes an integrated housing containing a pilot valve and a hydraulic unloader valve. Low pressure in the hydraulic oil system opens the hydraulic unloader valve such that the suction valve unloader assembly unloads the compressor. High pressure in an air receiver of the compressor system opens the pilot valve such that the suction valve unloader assembly unloads the compressor.
    Type: Application
    Filed: January 2, 2014
    Publication date: August 7, 2014
    Inventors: Tingrong Ren, Keith Stephens, Gary Hyer
  • Publication number: 20140209022
    Abstract: Provided is a raw material gas supply device for use in a film forming apparatus, which includes: a raw material container configured to accommodate a solid raw material; a carrier gas supply unit configured to supply a carrier gas to the container; a raw material gas supply path configured to supply a raw material gas containing a vaporized raw material from the container to the film forming apparatus; a flow rate measurement unit configured to measure a flow rate of the vaporized raw material; a pressure control unit configured to control an internal pressure of the container; and a control unit configured to control the pressure control unit to increase the internal pressure of the container when the measured flow rate of the vaporized raw material is higher than a predetermined target value, and to decrease the internal pressure when the measured flow rate is lower than the target value.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 31, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Mitsuya INOUE, Makoto TAKADO
  • Publication number: 20140202560
    Abstract: A compact, easily manufactured, axisymmetric mechanism can be configured to change the magnitude of a short-movement linear motion, or also reverse the movement direction, of an actuator for control of movable elements. The mechanism is bidirectional and reversible, functioning symmetrically, and does not contain any gears nor lead screw threads. It is constantly loaded, so that force change is achieved without mechanical backlash, introducing hysteresis. The movement conversion is generally proportional and suitable for use in actuating a fluid control valve intended for modulating the control of fluids.
    Type: Application
    Filed: March 11, 2013
    Publication date: July 24, 2014
    Inventor: Kim Ngoc Vu
  • Publication number: 20140158226
    Abstract: An anti-flooding safety device for a user apparatus includes: a first connection body defining a first duct, the first duct having an inlet and an outlet, the inlet of the first duct being provided for connection to a supply point of a mains supply. An inner flexible hose and an outer flexible hose are impermeable to water, wherein the inner hose has a proximal end, which is sealingly fixed in a position corresponding to the outlet of the first duct, and a distal end for connection to the user apparatus, and wherein the inner hose extends longitudinally within the outer hose so that between at least part of the two hoses a gap is defined designed to convey to the user apparatus and/or to withhold inside it any possible leaking water. A valve arrangement on the first connection body can be switched from a position of opening of the first duct to a position of closing of the first duct following upon detection of a leakage of water.
    Type: Application
    Filed: April 12, 2012
    Publication date: June 12, 2014
    Applicant: ELTEK, S.P.A.
    Inventors: Luciano Bianchi, Paolo Savini
  • Patent number: 8733303
    Abstract: A method controls a valve-control system for variable-lift actuation of the valves of an internal-combustion engine, in which the valve-control system includes, for each cylinder of the engine, a solenoid valve for controlling the flow of a hydraulic fluid in the system, and designed manner for determining a real temperature value of the hydraulic fluid. The method includes determining a deviation of performance of the solenoid valves due to a degradation of the characteristics of the hydraulic fluid with respect to nominal values thereof, and substituting for the real temperature value an equivalent temperature value consisting of a temperature value at which the hydraulic fluid having nominal characteristics would produce performance of the solenoid valves corresponding to the performance resulting from the deviation so that each solenoid valve is governed as a function of the equivalent temperature value.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: May 27, 2014
    Assignee: C.R.F. Societa Consortile per Azioni
    Inventors: Claudio Lanfranco, Mitzi Puccio
  • Publication number: 20140137732
    Abstract: A flow control valve for a construction machine is disclosed, which enables a combined operation for simultaneously operating a working device, such as an arm, and a swing device to be easily performed by limiting a part of hydraulic fluid that is supplied to the working device side by a priority valve that is shifted simultaneously or releasing the limiting function through shifting of a spool of the priority valve to a neutral position by pilot signal pressure that is separately applied according to a type of work.
    Type: Application
    Filed: July 12, 2011
    Publication date: May 22, 2014
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventor: Bon-Seuk Ku
  • Publication number: 20140130883
    Abstract: A valve control system includes a valve connected to regulate flow of a medium provided to an output and a sensor connected to monitor a feedback value associated with the medium. A controller modulates the valve based on a comparison of a reference value to the feedback value provided by the sensor. The controller detects saturation of the valve if the error between the monitored feedback value and reference value exceeds a threshold. In response to detected saturation, the controller reduces the reference value to a value less than the monitored feedback value.
    Type: Application
    Filed: April 12, 2013
    Publication date: May 15, 2014
    Inventors: Lyndsay Morgan Couture, Erin G. Kline, Jeffrey Ernst, Antonio G. Daniele, Hong Liang
  • Patent number: 8707937
    Abstract: Fuel systems and methods for controlling fuel systems in a vehicle with multiple fuel tanks are provided. An exemplary vehicle fuel system includes a first fuel tank including a first pressure sensor, and a second fuel tank. The system may further include a fuel tank isolation valve positioned to selectively decouple the first fuel tank and the second fuel tank. The system may further include an electronic controller configured to identify which of the first fuel tank and second fuel tank includes a fuel system leak by selectively decoupling the first fuel tank and the second fuel tank via the fuel tank isolation valve, responsive to an identification of the fuel system leak.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: April 29, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Shane Elwart, James Michael Kerns
  • Patent number: 8684028
    Abstract: A fuel quality traceable and remote system for monitoring and controlling fuel characteristics during transport from a fuel supply to a supplied device is provided. The system includes one or more subsystems that include at least one sensor monitoring the characteristics of the fuel. The sensor operably sends the data relating to the characteristics to a data register-transmitter which sends the data to a base station that uploads the data to a remote server. The remote server is remotely accessible by a user. The system can also generate warning messages to warn a user when the characteristics are outside a tolerable range. Further, the system can automatically or manually interrupt fuel transport when the characteristics are outside a tolerable range.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: April 1, 2014
    Assignee: Pecofacet (US), Inc.
    Inventor: Camilo Vazquez Pérez
  • Patent number: 8671972
    Abstract: An overpressure protection system provides for protection of a hydraulic system from elevated pressures. The system automatically stops flow to the system and prevents system pressure from exceeding a predetermined level. The system requires manual intervention to reopen flow, giving a worker the opportunity to resolve any system problems before system damage occurs.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: March 18, 2014
    Inventor: Mike Winn
  • Publication number: 20140048148
    Abstract: A pressure relief valve includes a singular body that encloses a seat and a stationary shim, a poppet, within the singular body, that is forced against a seat by a spring attached to the stationary shim, and a pin inserted into the pressure relief valve body to lock the pressure relief valve into a housing bore. The poppet includes a nose extension that extends into a void enclosed by the seat to provide damping. The seat includes a non-threaded stepped region on its outer surface and the singular body includes a complementary stepped region on its inner surface such that when the seat is fit into the singular body, the stepped region of the seat and the complementary stepped region of the singular body interface with each other to prevent movement of the seat toward the spring. The pin includes a coating to reduce friction and galling.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: Ausco, Inc.
    Inventor: FRANCIS J. MARTIN
  • Patent number: 8627858
    Abstract: Methods and systems for selectively fuelling a vehicle are provided. One example method of fuelling a vehicle may include receiving a fuel in a fuel reservoir in the vehicle, and directing the fuel to one of a plurality of storage tanks based on a fuel type. In one example, the directing of fuel may include adjusting one or more fuelling valves positioned between the fuel reservoir and the plurality of storage tanks to vary a direction of fuel flow to the plurality of storage tanks.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: January 14, 2014
    Assignee: Ford Global Technologies, LLC
    Inventor: Shane Elwart
  • Publication number: 20140007950
    Abstract: To provide a pressure control device that can prevent ringing and overshoot without changing gain even with a high gain setting, can quickly change pressure to a steady state even with a large set pressure value, and can equalize the time required from an initial to steady state regardless of the set pressure value, a valve control part is provided that includes an open degree operated amount output part that outputs an open degree operated amount based on a measured pressure value and a set pressure value, and a limiter part that sets an upper limit value of the open degree operated amount according to the set pressure value and that controls a pressure control valve by the open degree operated amount of the upper limit value when the open degree operated amount exceeds the upper limit value.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventor: Kotaro Takijiri
  • Publication number: 20130276914
    Abstract: The proposed valves and/or fluid pumps are controlled with a piezoelectric actuator, which provides very low power consumption, low cost, very compact designs, high speed response, long life, hysteresis free and linear operation, long displacement over 50 mm and high torque over 400 Newton. A steady continuous flow of a media is achieved by supplying a power profile to the actuator via an electronic circuitry connected to electrodes attached to the piezoelectric actuator.
    Type: Application
    Filed: July 20, 2012
    Publication date: October 24, 2013
    Inventor: Amnon Kritzman
  • Patent number: 8555912
    Abstract: An organic rankine cycle system includes a sensor for sensing a condition indicative of pressure within the system and a control which responsively provides heat to said system when the pressure within the system is sensed to be at a predetermined threshold, near ambient pressure, during periods in which the system is shut down or preparing to operate. Provision is also made to remove the heat from the system when the pressure therein rises to a predetermined higher pressure threshold.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: October 15, 2013
    Assignee: United Technologies Corporation
    Inventors: Lance D. Woolley, Sean P. Breen
  • Patent number: 8550109
    Abstract: A gas meter device is provided which is configured in a manner that even if a user takes an unauthorized action such as the removal of a gas meter device in order to use gas without authorization, since the generation of a particular flow-rate change profile different from a normal flow-rate change profile of a gas appliance is detected, the sign of the tamper of the gas can be detected, whereby the tamper of the gas can be prevented. The gas meter device includes an appliance determining unit 6 for determining a gas appliance being used and a tamper determining unit 7 which determines that the gas is used without authorization in the case where the particular flow-rate change profile different from an appliance determining value registered in a registration storage unit 5 is generated.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: October 8, 2013
    Assignee: Panasonic Corporation
    Inventors: Hajime Miyata, Youichi Itou, Kenichi Kamon
  • Publication number: 20130213496
    Abstract: This disclosure is related to a non-electronic pressure control system for a pressurized system that receives fluid from a fluid supply. The pressure control system includes a control module, an actuator and a flow control device. The control module monitors the pressure of fluid either upstream or downstream of the flow control device. The control module can send a pneumatic signal to the actuator to open or close the flow control device responsive to the pressure monitored by the control module and the pressure required for the pressurized system.
    Type: Application
    Filed: February 18, 2013
    Publication date: August 22, 2013
    Inventors: Mike Lybarger, Jud Smalley
  • Publication number: 20130153057
    Abstract: A compact two-way cartridge valve with combined flanged cover includes combined flanged covers, miniaturized pilot control assemblies and main stage of seated poppet valve, or combined flanged covers and main stage of seated poppet valve, or combined covers and miniaturized pilot assemblies and main stage of seated poppet valve. The present invention can overall realign all the two-way cartridge valve products currently on the market, and innovate new series of MINISO compact two-way cartridge valves in the specifications of 10 mm, 16 mm, 25 mm, 32 mm, and will change the quo-status of hydraulic drive and control system, that is the two-way cartridge valves currently are mainly used for large power or flow situations, and can make two-way cartridge valves applied for medium and small power or flow situations, which are the majority of the market in the hydraulic drive and control system.
    Type: Application
    Filed: August 11, 2011
    Publication date: June 20, 2013
    Applicant: SHANGHAI RENHAO HYDRAULIC TECHNOLOGY CO. LTD.
    Inventor: Renhao Huang
  • Publication number: 20130153056
    Abstract: A composite valve has a communication path, a second valve port and a pilot passage. First and second valve bodies are arranged to be moved up and down in the same direction, and are away from each other only at a predetermined distance. In the case that a lift amount of the second valve body for a small flow rate control is equal to or less than a predetermined amount, said pilot passage and a first valve port are respectively closed by a pilot valve body and the first valve body, thereby taking a small flow rate control state. In the case that the lift amount of said second valve body goes beyond said predetermined amount, said pilot valve body is moved up by the upward movement of a valve shaft to open said pilot passage, thereby taking a large flow rate control state.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 20, 2013
    Applicant: FUJIKOKI CORPORATION
    Inventor: Fujikoki Corporation
  • Publication number: 20130112289
    Abstract: A plug assembly is provided for a high-pressure valve of the type with a tubular body extending along a longitudinal axis and in which, under the action of a piloted actuator, a needle moves longitudinally between a closed position and an open position. The plug assembly includes a plug having a flat part able to be fixed onto the body transversally to the longitudinal axis, and a spring intended to apply to the needle a force biasing it axially towards the closed position. The spring is fixed to the plug forming with it an integrated assembly.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 9, 2013
    Applicant: DELPHI TECHNOLOGIES HOLDING, S.ARL
    Inventor: DELPHI TECHNOLOGIES HOLDING , S.arl
  • Patent number: 8430120
    Abstract: A proportional fluid control valve with improved linearity and reduced hysteresis is disclosed. The valve allows for smooth, gentle flow of fluid in a substantially linear fashion, with minimal turns. Preferably the valve is pneumatically actuated. Where temperature is not an issue, the valve can be actuated by any suitable means, including stepper motors, linear motors, voice coils or other force actuators. A versatile molded valve body that requires fewer parts compared to a machined valve is disclosed. In one embodiment, the molded valve body is designed specifically for flow control and contains two sensor housings with carefully positioned flow paths to optimize the use of space. The sensor housing or housings can be separately formed as inserts, allowing installation in various orientations.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: April 30, 2013
    Assignee: Entegris, Inc.
    Inventors: Marc Laverdiere, Robert F. McLoughlin, George Gonnella, Iraj Gashgaee, Jennifer Marrs
  • Publication number: 20130098465
    Abstract: There is provided a fluid rerouting system for valve bodies that use hydraulic pressure, via a balance pressure line, to move spools. In an exemplary embodiment, the system comprises a valve sleeve having a plurality of ports that are substantially aligned with a plurality of fluid connections in the mating bore, except that no valve sleeve port aligns with the balance pressure line. The system also includes a spool having a plurality of lands that are sized and configured to fit slidably in said valve sleeve. The combination of the valve sleeve and at least one of the lands form a chamber, fluid access to which is via an aperture traversing the land. Means for blocking the access of said balance pressure line to said valve sleeve are also included.
    Type: Application
    Filed: April 10, 2012
    Publication date: April 25, 2013
    Applicant: SONNAX INDUSTRIES, INC.
    Inventors: Maura J. Stafford, Robert C. Warnke
  • Publication number: 20130092259
    Abstract: Fluid regulator systems having reset apparatus and methods are described herein. An example reset apparatus for use with a fluid regulator system includes a first valve having an inlet to receive a loading fluid and an outlet in fluid communication with a loading chamber of a fluid regulator, and a second valve having an inlet in fluid communication with the loading chamber of the fluid regulator and an outlet in fluid communication with a vent.
    Type: Application
    Filed: October 17, 2011
    Publication date: April 18, 2013
    Inventors: James Lyman Griffin, JR., Daniel Gunder Roper, Douglas James Scheffler, Harold Joe McKinney, Jason Daniel Journey
  • Publication number: 20130061953
    Abstract: A control system includes a first valve configured to block a fluid flow between a first section of a flow line and a second section of the flow line in response to a first emergency shut-off signal of a first signal type. A second valve is configured to block the second section of the flow line and a third section of the flow line in response to a second emergency shut-off signal of a second signal type, wherein the first signal type differs from the second signal type.
    Type: Application
    Filed: May 16, 2012
    Publication date: March 14, 2013
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventors: Andreas Belzner, Dirk Matthes
  • Publication number: 20130048093
    Abstract: The invention relates to a control device for an extracting unit in the face of a mine, for actuating the hydraulic actuator in the sense of drawing, stepping, setting, and having a plurality of main valves for connecting the actuator of the extracting unit to a main pressure line and a main return line, and a similar plurality of pilot valves, each associated with a main valve for adjusting same and connected to the main pressure line via a pilot pressure line common to all pilot valves and connected to the main return line via a return line common to the main valves and the pilot valves. The pilot pressure line can be shut off and the return line can be blocked off from the main return line and connected to a measuring device for measuring escaping hydraulic fluid.
    Type: Application
    Filed: August 15, 2012
    Publication date: February 28, 2013
    Inventor: Gerhard Wülfing
  • Publication number: 20130037130
    Abstract: Fluid regulators are described. An example regulator includes a regulator body defining a sensing chamber between an inlet and an outlet of a fluid flow passageway of the fluid regulator. A bonnet is coupled to the regulator body and defines a loading chamber disposed adjacent the sensing chamber. The loading chamber is substantially sealed relative to the sensing chamber and an environment surrounding the fluid regulator. A sensor guide is disposed between the sensing chamber and the loading chamber and has at least one seal to fluidly isolate the loading chamber from the sensing chamber. The sensor guide has a vent flow path between the sensing chamber and the loading chamber to vent the sensing chamber during a failure condition of the at least one seal.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 14, 2013
    Inventors: Moritz Klaus Olbrisch, Daryll Duane Patterson, Falk Rapsch
  • Patent number: 8365762
    Abstract: A control system for transferring fluid between a fluid supply and a process. The control system includes a transfer controller, which outputs a transfer signal that corresponds to a time varying fluid transfer rate, and plural valves that are plumbed in parallel for connection between the fluid supply and the process. Each valve has a corresponding input to receive an actuation signal that enables a closed state or an open state. The system also includes plural means for limiting the rate of fluid flow corresponding to the plural valves, and a valve drive that is coupled to the corresponding inputs of the plural valves, which operates to generate a sequences of valve actuation signals that result in a combined fluid flow rate through the plural valves selected to track the time varying fluid transfer rate defined by a modulated transfer signal within a margin of error.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: February 5, 2013
    Assignee: Air Tractors, Inc.
    Inventor: Victor D. Trotter
  • Patent number: 8251091
    Abstract: A temperature insensitive mass flow controller comprising a main flow line, a capillary tube coupled to the main flow line across a bypass a thermal sensing element coupled to the capillary tube and a mass flow controller housing adapted to at least cover the capillary tube. A first heat sink has been coupled to the mass flow controller internal to the mass flow controller housing and coupled to the capillary tube. The heat sink being adapted to control a temperature of a gas in the capillary tube.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: August 28, 2012
    Assignee: Hitachi Metals, Ltd.
    Inventors: Michael J. Zolock, Alexei V. Smirnov
  • Publication number: 20120186659
    Abstract: A fluid control valve system suitable for use in fluid systems. The valve system includes at least one check valve assembly that has a controllable bidirectional flow capability. The valve system and its check valve assembly can be installed in a fluid system that contains a pump/motor to enable the displacement output of the pump/motor to be controlled. The valve system further includes a pilot valve assembly and a device for controlling the check and pilot valve assemblies. The controlling device is adapted to control the pressure of at least one pilot fluid delivered to the pilot valve assembly, which enables the check valve assembly to selectively check flow of a working fluid flowing therethrough in either of two directions.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 26, 2012
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventors: John H. Lumkes, Mark Allen Batdorff, Kyle Joseph Merrill, Michael Andrew Holland, Gabriel Jordan Wilfong
  • Patent number: 8225814
    Abstract: A differential-pressure flowmeter that can reduce (eliminate) a difference between the ambient temperature of one pressure sensor and the ambient temperature of another pressure sensor so as to allow for accurate and stable pressure measurement is provided, and a flow-rate controller equipped with such a differential-pressure flowmeter is provided. Provided are a body having a main fluid channel through which a fluid, whose pressure is to be measured, flows, and two pressure sensors held by the body and arranged in series relative to the main fluid channel, and a temperature balancer composed of a material with high thermal conductivity is accommodated in a recess that is formed in the body located below the two pressure sensors.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: July 24, 2012
    Assignee: Surpass Industry Co., Ltd.
    Inventor: Hiroki Igarashi
  • Patent number: 8225813
    Abstract: An arrangement for controlling flow of fluid to at least one component of a gas turbine engine, the arrangement includes a first conduit for providing fluid to the component; a flow valve, for controlling the flow of fluid in the first conduit, having first and second configurations; a second conduit for providing fluid to the flow valve to the control the configuration of the flow valve; and a magnetic valve, for controlling the flow of fluid in the second conduit, having first and second configurations and including at least one ferromagnet forming a portion of a magnetic circuit; the member comprising ferromagnetic material is thermally coupled to one of the group comprising the fluid in the first conduit, the fluid in the second conduit and the component; and the configuration of the flow valve is dependent on the configuration of the magnetic valve.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: July 24, 2012
    Assignee: Rolls-Royce PLC
    Inventors: Nicolas M P Evanno, John R Webster, Paul W Ferra
  • Publication number: 20120160344
    Abstract: The invention provides a vacuum control valve configured to control the vacuum pressure in the vacuum chamber. The vacuum control valve includes a control valve main body, an operation unit, a cylinder, a biasing unit, and a bellofram. The operation unit and the cylinder include a valve opening manipulation chamber and a shutoff load generation chamber. The shutoff load generation chamber is configured to have a common axial center line with the valve opening manipulation chamber and to generate a load applied to the operation unit in a direction for reducing the lift in accordance with a supply of the working fluid. And the shutoff load generation chamber may be formed in an interior of the rod.
    Type: Application
    Filed: March 6, 2012
    Publication date: June 28, 2012
    Applicant: CKD CORPORATION
    Inventors: Hiroshi ITAFUJI, Masayuki KOUKETSU
  • Publication number: 20120090940
    Abstract: A dry dual clutch transmission includes at least one hydraulic component and a pilot valve operably connected to the hydraulic component to actuate the hydraulic component. The pilot valve includes a Micro-Electro-Mechanical Systems (MEMS) based pressure differential actuator valve. The hydraulic component may include but is not limited to a first clutch and a second clutch of the dry dual clutch transmission, an on/off solenoid, a line pressure control valve or a synchronizing shift fork.
    Type: Application
    Filed: May 24, 2011
    Publication date: April 19, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Kumaraswamy V. Hebbale, Farzad Samie, Chunhao J. Lee, Dongxu Li, Andrew L. Bartos, Chi-Kuan Kao, Kevin B. Rober
  • Publication number: 20120090704
    Abstract: Apparatus and a control system for monitoring (preferably digitally) and/or controlling pressure to a pneumatic load such as a proportional fluid control valve and using a measurement input from a fluid measurement device that responds to a flow rate, the liquid measurement input being used to control the pressure to the pneumatic load so that pneumatic load may be increased or decreased (to proportionally open or close the pneumatic valve) to change the flow rate of the fluid to a desired rate. The pneumatic load can also be adjusted (to proportionally open or close the pneumatic valve) to accommodate changes in temperature and viscosity of a fluid.
    Type: Application
    Filed: November 21, 2011
    Publication date: April 19, 2012
    Applicant: ENTEGRIS, INC.
    Inventors: Marc Laverdiere, Robert F. McLoughlin, George Gonnella, Iraj Gashgaee, Jennifer Marrs
  • Publication number: 20120090689
    Abstract: A drain valve includes a valve body that defines an inlet seat and a first outlet seat downstream of the inlet seat. A first member has a first position in sealing engagement with the first outlet seat and a second position separated from the first outlet seat. A second member has a first location in sealing engagement with the inlet seat. A sensor downstream of the inlet seat generates a signal reflective of a pressure downstream of the inlet seat. A method for operating a drain valve includes moving a first element in a valve body to allow fluid flow through the valve body, moving a second element in the valve body to allow fluid flow through the valve body, and sensing a pressure in the valve body.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 19, 2012
    Applicant: GRAHAM-WHITE MANUFACTURING A DRAIN VALVE
    Inventor: Kenneth Andrew Hodges
  • Publication number: 20120085436
    Abstract: A hydraulic valve assembly (10) adapted to be mounted to a transmission control module (15) and having a valve body (12), a valve bore (16), and at least one pressure supply port (26) as well as at least one pressure control port (28) that establish fluid communication between a source of pressurized fluid and a component to be controlled by the valve assembly. A valve member (18) is supported in the valve bore (16) and is selectively movable between predetermined positions to direct the pressurized fluid between the pressure supply port (26) and the pressure control port (28). In addition, the hydraulic valve assembly (10) includes a biasing mechanism (80, 180, 280, 380) that is responsive to the flow of hydraulic fluid through the valve body to generate a biasing force acting on the valve body (12) in a direction toward the pressure supply port (26).
    Type: Application
    Filed: June 22, 2010
    Publication date: April 12, 2012
    Applicant: BorgWarner Inc.
    Inventors: Michael E. Jones, Dennis R. Que
  • Publication number: 20120055566
    Abstract: A restrictor mechanism is provided in a pilot operated solenoid valve that restricts the pilot flow to the actuating piston of the valve if the pressure differences within the valve are great. This reduces the actuating forces allowing the valve to open or close softly. As the pressures within the valve start to balance, the restrictor device opens, allowing full pilot flow to hold the valve in position.
    Type: Application
    Filed: February 23, 2010
    Publication date: March 8, 2012
    Inventor: Steven Mesner