Inlet Throttle Or Stop Valve Patents (Class 417/295)
  • Patent number: 11319884
    Abstract: A distributor valve comprising a second element configured to be displaced relative to a first element, so as to form an overall passage opening of variable fuel passage section corresponding to the intersection of a first passage opening and a second passage opening. The head portion of the second passage opening comprises a first inclination having a first average slope, the intermediate portion of the second passage opening comprises a second inclination having a second average slope strictly greater than said first average slope, and the foot portion of the second passage opening comprises a third inclination having a third average slope, strictly less than said second average slope.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: May 3, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Regis Michel Paul Deldalle, Pierre Charles Mouton
  • Patent number: 11085299
    Abstract: Various designs for hydraulic devices are disclosed including hydraulic devices that can include a rotor and a ring are disclosed. The rotor can be disposed for rotation about an axis and can have a plurality of plurality of vanes extending therefrom. The ring can be disposed at least partially around the rotor and the ring, and the rotor can be in communication with a port for ingress or egress of the hydraulic fluid to or from adjacent the rotor. The ring defines a cavity adjacent to and in communication with the port, the cavity allows the hydraulic fluid to be disposed adjacent at least one of the plurality of vanes when the at least one of the plurality of vanes is transiting the port.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 10, 2021
    Assignee: Mathers Hydraulics Technologies Pty Ltd
    Inventor: Norman Ian Mathers
  • Patent number: 10833617
    Abstract: A motor drive apparatus includes a power converter including an inverter having an upper arm and a lower arm, the inverter being configured to control an operation of an electric motor, and a drive controller configured to apply a dead time for preventing a short circuit between the upper arm and the lower arm, and to control the power converter. The drive controller is configured to control the power converter by switching a first mode in which a first correction value representing a time used to correct a voltage drop due to the dead time is employed to control the power converter, and a second mode in which a second correction value smaller than the first correction value is employed to control the power converter.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: November 10, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shusaku Nakase, Shigeo Takata
  • Patent number: 10759031
    Abstract: A valve support for use with a valve in a combustion driven fastener hand tool, the valve being formed by a flexible disc affixed to a central shaft having a circumferential edge resting against an anular valve seat affixed to a wall of a combustion chamber with the valve in a closed position is disclosed. The valve support comprises a plate affixed to the central shaft and against the flexible disc, the plate having one or more ports therethrough. In a closed position, the flexible disc has a circumferential edge resting against an anular valve seat affixed to a wall of a combustion chamber but also a central portion of the flexible disc is proximate or contacting a central portion of the support plate on the same side of the disc as the annular valve seat. Various port configuration are possible.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 1, 2020
    Assignee: Power Tech Staple and Nail, Inc.
    Inventors: Raymond Wong, Shih-Yi Chen, Chin-Chuan Chen
  • Patent number: 10415706
    Abstract: A method and system is provided for pressure balancing one or more seals in machines such as expanders and/or compressors using the process fluid which is being expanded or compressed to provide the pressure for pressure balancing the other side of the one or more seals. The one or more seals may be part of a pressure containing chamber which may comprise a seal, a bearing and/or a gear on a rotating shaft common to the seal. An amount of pressure to be supplied to housing(s) for a machine so as to create a pressure cascade, and thereby dropping the pressure in each subsequent chamber as pressure approaches atmosphere. Pressure differentials may be directed to leak process fluid to the chamber into the process. Pressurized lube oil systems may be employed for balancing pressure and delivering lubricant to the seals, bearings and gears.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 17, 2019
    Inventor: Victor Juchymenko
  • Patent number: 10393117
    Abstract: A scroll compressor includes partition plate (20) that partitions an inside of sealed container (10) into high-pressure space (11) and low-pressure space (12), and fixed scroll (30) adjacent to partition plate (20). The scroll compressor includes orbiting scroll (40) that meshes with fixed scroll (30) to form compression chamber (50), rotation restrictor (90) that prevents rotation of orbiting scroll (40), and main bearing (60) that supports orbiting scroll (40). Fixed scroll (30), orbiting scroll (40), rotation restrictor (90), and main bearing (60) are disposed in low-pressure space (12), and fixed scroll (30) and orbiting scroll (40) are disposed between partition plate (20) and main bearing (60). The scroll compressor includes bearing coupler (102) provided in main bearing (60), scroll coupler (101) provided in fixed scroll (30), and pillar member (100) having a lower end and an upper end, the lower end being inserted in bearing coupler (102) and the upper end being inserted in scroll coupler (101).
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: August 27, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takeshi Ogata, Yusuke Imai, Sadayuki Yamada, Akihiro Hayashi, Atsushi Sakuda, Takashi Morimoto
  • Patent number: 10391436
    Abstract: A cup-shaped housing assembly for a device for separating liquid from air has a cup-shaped housing body having an interior. At least one annular filter element for separating liquid from air is arranged in the housing body. A housing cover closes off an end face of the housing body. The housing cover has an inner side that is facing the interior and an outer side that is facing away from the interior. The housing cover has at least one raw air inlet through which raw air is supplied to the interior. The housing cover has at least one clean air opening though which filtered clean air is discharged from the interior.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: August 27, 2019
    Assignee: MANN+HUMMEL GmbH
    Inventors: Janine Schmelzle, Klemens Dworatzek, Bertram Bartelt, Daniela Zinic
  • Patent number: 10309704
    Abstract: The present application provides a compressor for use with a flow of carbon dioxide. The compressor may include a first stage compression mechanism for compressing the flow of carbon dioxide from a low pressure to an intermediate pressure, an oil separator downstream of the first stage compression mechanism, and a second stage compression mechanism positioned downstream of the oil separator for compressing the flow of carbon dioxide from the intermediate pressure to a high pressure.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: June 4, 2019
    Assignee: The Coca-Cola Company
    Inventor: Roberto Horn Pereira
  • Patent number: 10274082
    Abstract: A hydraulically actuated continuously variable transmission (1) is provided with a hydraulic system (TH) for the control of the torque transmissible by the transmission (1) as well as the speed ratio provided by the transmission (1). The hydraulic system (TH) is provided with a mechanically driven hydraulic pump (PM) and with an electrically driven hydraulic pump (PE) for generating a pressurised flow of hydraulic medium for the actuation of the transmission. The electrically driven pump (PE) can be switched either downstream of or in parallel with the mechanically driven pump (PM).
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: April 30, 2019
    Assignee: ROBERT BOSCH GMBH
    Inventor: Francis Maria Antonius Van Der Sluis
  • Patent number: 9903468
    Abstract: A hydraulic pressure supply system of an automatic transmission may include a mechanical oil pump fluidly-connected to the oil pan to supply oil to first and second discharge paths fluidly-connected to the mechanical oil pump, a first switch valve fluidly-connected to the first discharge path and selectively supplying oil to a first supply path fluidly-connected to the first switch valve, a second switch valve fluidly-connected to the first and second discharge paths and selectively supplying oil supplied in the first supply path to the transmission unit and a pressure control valve through a second supply path fluidly-connected to the second switch valve, respectively, a first solenoid valve actuator engaged to the first switch valve and a second solenoid valve actuator engaged to the second switch valve, and an electrical oil pump fluidly-connected to the oil pan to supply the oil to a third supply path fluidly-connected with the second supply path.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: February 27, 2018
    Assignee: Hyundai Motor Company
    Inventor: Jin Young Hwang
  • Patent number: 9695735
    Abstract: The invention relates to a thermostat valve for a cooling system of an internal combustion engine with a coolant stoppage function, comprising a first bypass valve element and a second bypass valve element, a main valve element to be arranged in a counterpart to a connection to a coolant radiator, and a crossmember to be arranged between an engine outlet and an engine inlet, which crossmember forms a valve seat for the first bypass valve element and the second bypass valve element, wherein, on its outer side, the crossmember has a collar which forms an axial supporting region for the counterpart and which is loaded in the axial direction by a compression spring, with the result that the collar is forced in the direction of the counterpart.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: July 4, 2017
    Assignee: MAHLE INTERNATIONAL GMBH
    Inventor: Andreas Auweder
  • Patent number: 9695815
    Abstract: A pump device and method for stabilizing a suction flow rate irrespective of an outside air temperature. The method includes: outputting a drive signal for driving a motor at a rotation speed for discharging gas of the reference flow rate from the suction port of the pump main body; measuring a temperature of gas discharged from the suction port or a temperature of the pump main body by a temperature sensor attached to the pump main body; calculating an actual flow rate of the gas discharged from the suction port based on a temperature signal relating to the temperature of the gas included in an output of the temperature sensor; and correcting the drive signal such that the actual flow rate equals the reference flow rate and outputting the corrected drive signal to the motor.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 4, 2017
    Assignee: Ulvac Kiko, Inc.
    Inventors: Yuji Nonomura, Sachie Suzuki, Ryuji Itoyama, Akhiro Yamanaka
  • Patent number: 9494156
    Abstract: A pump that includes a pump body 10 which sucks in air from an inlet 7 and discharges the air; a hydraulic pump which pressure-feeds a lubricating oil to the pump body 10 in accordance with the driving of the pump body 10; a non-return valve 70 which is disposed in a valve accommodation portion 6 between the inlet 7 and the pump body 10 to open and close the valve accommodation portion 6; an air introduction path 19 which introduces air into a cylinder 74 of the non-return valve 70; and an air introduction valve 60 which opens the air introduction path 19 when the hydraulic pump is not operating.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: November 15, 2016
    Assignee: ULVAC KIKO, INC.
    Inventors: Koichi Maruyama, Junichi Aikawa, Naoto Yotsugi, Kotaro Iwagoshi
  • Patent number: 9422901
    Abstract: A first spring axially urges a needle valve toward an injection hole. A second spring axially urges a movable core toward a stationary core with an urging force that is smaller than an urging force of the first spring. A stopper is placed on one axial side of the movable core where the injection hole is located. The stopper limits movement of the movable core toward the injection hole to limit an amount of compression of the second spring.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 23, 2016
    Assignee: DENSO CORPORATION
    Inventors: Haruki Suzuki, Akinori Harada
  • Patent number: 9404330
    Abstract: A system includes a tubular string and a hollow ball. The tubular string is adapted to be deployed downhole in a well and includes a seat. An activation ball adapted to be deployed in the well to lodge in the seat. The ball includes an outer shell that forms a spherical surface. The outer shell forms an enclosed volume therein, and the outer shell is formed from a metallic material.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: August 2, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Tracy Speer, Piro Shkurti, John Chrysostom Wolf
  • Patent number: 9363918
    Abstract: A clamping element is configured for mounting a rail element bearing electrical/electronic devices on a supporting portion of a switchgear cabinet. The clamping element includes a body provided with a coupling portion configured for engaging with an opening portion of the rail element. The coupling portion is configured for enabling the body to be at least one of coupled with and removed from the rail element when the body is positioned in a first configuration relative to the rail element. The coupling portion is configured for hindering removal of the body from the rail element when the body is positioned in a second configuration relative to the rail element. The clamping element also includes a clasping device protruding from the body and configured for removably connecting the body to the supporting portion to mount the rail element within the switchgear cabinet.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: June 7, 2016
    Assignee: ABB TECHNOLOGY AG
    Inventors: Fabrizio Santoni, Matteo Magri
  • Patent number: 8967982
    Abstract: A mechanical coolant pump for an internal combustion engine includes a main pump body configured to be stationary. A pump wheel is rotatably supported by the main pump body. The pump wheel comprises a central axial inlet opening. The pump wheel is configured to pump a coolant from the central axial inlet opening radially outwardly. A valve disk configured to be axially shiftable is arranged in the pump wheel. An actuator is configured to actuate the valve disk so as to close the central axial inlet opening in a closed position of the valve disk.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: March 3, 2015
    Assignee: Pierburg Pump Technology GmbH
    Inventors: Jean-Michel Durand, Achim Broemmel
  • Patent number: 8784074
    Abstract: A high pressure intensifier system is disclosed. The system has a high pressure intensifier configured to receive hydraulic fluid from an input and provide the fluid to an output at a higher pressure than at the input, a monitor configured to monitor the pressure of hydraulic fluid provided at the output, and a control configured to control the supply of hydraulic fluid from the input, and configured to maintain the pressure of hydraulic fluid provided at the output at substantially a predetermined value.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: July 22, 2014
    Assignee: Vetco Gray Controls Limited
    Inventors: Peter John Davey, Vernon Lester Hutchings, Harry Richard Cove
  • Patent number: 8784067
    Abstract: An electromagnetic valve, which is provided between an intake port of a compressor body and a pneumatic line at an intermediate position of an intake pipe, is opened/closed by a control unit. Communication between the intake port of the compressor body and the pneumatic line is permitted when the valve is open, and is blocked when the valve is closed. In a start-up control of the compressor body, the electromagnetic valve is opened, permitting communication of the pneumatic line in the plant with the intake port of the compressor body for power supply to an electric motor to drive an orbiting scroll. Rattling of the orbiting scroll by an amount equal to the axial gap (play) is suppressed before starting a compression operation.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: July 22, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Kiminori Iwano, Yuji Komai, Susumu Sakamoto, Aya Mizukoshi
  • Patent number: 8689895
    Abstract: A pilot valve assembly for regulating the output of a first pressure source relative to a second pressure source, a fluid system equipped with the valve assembly, and a method of operating the valve assembly. The valve assembly includes a valve body with inlet and outlet ports and first and second sensing ports. The first and second sensing ports are adapted to sense, respectively, the fluid pressures of the first and second pressure sources. The inlet port is adapted for fluidically connecting to the first pressure source. The valve assembly defines a flow path between the inlet and outlet ports, and has components for allowing fluid flow from the inlet port, through the flow path, and to the outlet port only if the fluid pressure of the first pressure source exceeds the fluid pressure of the second pressure source by a differential by the flow-allowing components.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: April 8, 2014
    Assignee: Vanair Manufacturing Inc.
    Inventor: Jeff Rohl
  • Patent number: 8651827
    Abstract: A lead line weld joined portion is disposed externally of a magnetic circuit, i.e., of a yoke portion. This allows generation of a sufficient magnetic biasing force between a first core portion and the anchor.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: February 18, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Satoshi Usui, Katsumi Miyazaki, Hiroyuki Yamada, Shingo Tamura
  • Patent number: 8529219
    Abstract: A variable displacement compressor comprises an opening-degree adjustment valve which is disposed in a flow passage between a suction port and a suction hole communicating with a cylinder bore and variably controls the opening area of the flow passage. The variable displacement compressor is characterized in that the resistance against the movement of the valve body of the opening-degree adjustment valve in the direction of increasing the opening area of the flow passage is made to be greater than the resistance against the movement thereof in the direction of decreasing the opening area. The liquid compression at the starting of the compressor is prevented from occurring, whereby the durability and the reliability of the device can be improved and the device can exhibit excellent displacement control responsiveness.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: September 10, 2013
    Assignee: Sanden Corporation
    Inventor: Kazuhiko Takai
  • Publication number: 20130224046
    Abstract: A device for throttling a fluid flow includes a basic body which has at least one throttle point with a predefinable opening cross section. The basic body has a resilient configuration at least in a region of the at least one throttle point. Accordingly, the opening cross section of the at least one throttle point is configured to be set in a variable manner as a function of a pressure difference.
    Type: Application
    Filed: July 6, 2011
    Publication date: August 29, 2013
    Applicant: Robert Bosch GmbH
    Inventors: Reiner Fellmeth, Juergen Haecker, Oliver Gaertner, Heiko Jahn, Wolfgang Schuller, Rolf Stotz
  • Patent number: 8475142
    Abstract: The invention relates to a pump comprising a pump unit, an intake line, and a valve device associated with same for implementing suction regulation of the pump, and comprising an intake region downstream from the valve device as viewed in the direction of flow of the medium conveyed by the pump.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: July 2, 2013
    Assignee: Ixetic Bad Homburg GmbH
    Inventors: Peter Breuer, Bernd Brunsch, Stefan Gross
  • Patent number: 8439652
    Abstract: A suction throttle valve of a variable displacement compressor having a compressor housing includes a suction chamber, a crank chamber, an inlet, a suction passage, a valve body, a valve housing, an urging member, a valve chamber, and a communication hole. The valve body is provided for adjusting an opening area of the suction passage and movably arranged in the suction passage. The urging member urges the valve body in the direction that decreases the opening area of the suction passage. The communication hole is provided for connecting the suction chamber to the valve housing. An opening area of the communication hole is variable in accordance with the movement of the valve body. Accordingly, the opening area of the communication hole becomes maximum during the maximum displacement operation of the compressor and becomes reduced during the intermediate displacement operation of the compressor.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: May 14, 2013
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Shiro Hayashi, Taro Ozeki, Mitsunori Yoshida, Toshiyuki Miyano, Sokichi Hibino
  • Patent number: 8425205
    Abstract: A centrifugal pump has a pump unit and a drive unit. The pump unit includes a volute and an impeller disposed in the volute. The drive unit has a stator and a rotor having a shaft. The volute includes an inlet, an outlet and a chamber in communication with the inlet and outlet. The inlet is coaxial with the chamber. The shaft of the rotor extends into the chamber of the volute and the impeller is attached to and driven by the shaft. The volute further includes a baffle installed in the inlet. The baffle includes a guide plate angled to the axis of the inlet.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: April 23, 2013
    Assignee: Johnson Electric S.A.
    Inventors: Min Li, Cheng Zhuang Zhu
  • Patent number: 8418677
    Abstract: A high pressure fuel pump control system for an internal combustion engine includes a fuel injection valve provided in a fuel common rail and a high pressure fuel pump for feeding fuel by pressure to the fuel injection valve. The high pressure fuel pump includes a pressurized chamber, a plunger for pressurizing fuel in the pressurized chamber, a discharge valve provided in a discharge passage, an intake valve provided in an intake passage, and an actuator for operating the intake valve. The control system includes a means for calculating a drive signal for the actuator to make a discharge amount or pressure of the high pressure fuel pump variable. The means reduces pressure in the common rail by opening the discharge valve to return the fuel in the fuel common rail to the pressurized chamber when a requirement for reducing the pressure in the fuel common rail is made.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: April 16, 2013
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Takashi Okamoto
  • Patent number: 8366407
    Abstract: The present invention is directed to provide a device for reducing pulsation in a variable displacement compressor. The compressor is connected to an external refrigerant circuit. The device for reducing pulsation includes a flow passage and a control valve. The control valve includes a valve housing, a spool valve and a damper chamber. The spool valve has formed therethrough a flow hole. The damper chamber communicates with the flow passage adjacent to the external refrigerant circuit through the flow hole. Effective cross-sectional area and effective length of the flow hole are determined based on frequency of a specific pulsation of the refrigerant gas and volume of the damper chamber at the time of the development of the specific pulsation in such a manner that the specific pulsation is developed, resonance effect of a Helmholtz resonator takes place in the damper chamber.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Shiro Hayashi, Hideki Mizutani, Sokichi Hibino, Suehiro Fukazawa, Taro Ozeki, Miyako Asagoe
  • Patent number: 8366408
    Abstract: A positive displacement pump having a valve with an actuation guide for assisting its actuation. The valve may be configured for controlling fluid communication relative to a chamber of the pump with the valve actuation guide positioned external to the chamber and configured to assist in the controlling. The valve actuation guide itself may include an arm extending into a valve actuation assembly below the valve. In such embodiments, the arm may be reciprocated by crankshaft, hydraulic, or other means. Alternatively, the valve actuation assembly may include electromagnetic means for assisting in actuation of the valve.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: February 5, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Toshimichi Wago, Philippe Gambier, Jean-Louis Pessin, Rajesh Luharuka
  • Patent number: 8323000
    Abstract: A control method and apparatus for simultaneously protecting a compression system from driver overpowering and turbocompressor surge. When overpowering is detected, flow rate through the each compressor in the turbocompressor train is reduced by closing an inlet throttling valve at the inlet of each respective compressor stage unless a compressor operating point is sufficiently near surge. In this latter case, the inlet throttling valve is not closed. In this way, overall flow rate through the compressor train is reduced while maintaining adequate flow through compromised stages to avoid surge.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: December 4, 2012
    Assignees: Compressor Controls Corp., Conocophillips Company
    Inventors: Saul Mirsky, Jeff McWhirter, John R. Wolflick
  • Publication number: 20120244019
    Abstract: A check valve (10), including a valve membrane (12), which includes an umbrella-like closing body (14), which in a closed position abuts a housing body (5) in such a way that the closing body prevents the passage of a medium through passage holes (26) provided in the valve body (16), the closing body lifting off the housing body in an open position in order to allow a medium to pass through the passage holes. In the open position and/or closed position the closing element is clamped between the valve body and the housing body at least at one point (31, 32).
    Type: Application
    Filed: November 23, 2010
    Publication date: September 27, 2012
    Applicant: IXETIC HUECKESWAGEN GMBH
    Inventors: Noriyki Otsuka, Marcel Walder, Marek Raczko, Alexander Freiburg
  • Patent number: 8256403
    Abstract: An internal combustion engine is coupled to a supercharger operable to supply varying amounts of air to the engine responsive to the load on the engine. The supercharger has a pair of screw rotors driven by the engine to move air to the engine and a control apparatus for varying the mass and pressure of air supplied to the engine.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: September 4, 2012
    Assignee: Hansen Engine Corporation
    Inventors: Craig N. Hansen, Paul C. Cross
  • Patent number: 8226379
    Abstract: A hydraulic pump includes a housing, a seat portion, and a valve element. The housing has a compression chamber and a fluid passage. The seat portion is provided midway through the fluid passage. The valve element is located between the compression chamber and the fluid passage. The valve element is a closed-end cylindrical member having a bottom portion, a cylindrical portion, and an opening end arranged in this order. The cylindrical portion is located farther away from the seat portion than the bottom portion. The valve element is seated to the seat portion at the bottom portion. A stopper substantially closes the opening end when making contact with the opening end to regulate movement of the valve element.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: July 24, 2012
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Katsunori Furuta, Kaoru Oda, Yoshihito Suzuki, Moriyasu Gotoh, Hiroshi Inoue
  • Publication number: 20120177508
    Abstract: An apparatus is provided and may include a control valve that moves a pressure-responsive unloader valve between a first position permitting flow through a valve plate and into a compression mechanism and a second position restricting flow through the valve plate and into the compression mechanism. The control valve may include at least one pressure-responsive valve member movable between a first state supplying discharge-pressure gas to the unloader valve to urge the unloader valve into one of the first position and the second position and a second state venting the discharge-pressure gas from the unloader valve to move the unloader valve into the other of the first position and the second position.
    Type: Application
    Filed: March 21, 2012
    Publication date: July 12, 2012
    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.
    Inventors: Frank S. Wallis, Mitch M. Knapke, Ernest R. Bergman
  • Patent number: 8202064
    Abstract: A liquid pump includes an electronically controlled throttle inlet valve to control pump output. With each reciprocation cycle, a plunger displaces a fixed volume of fluid. When less than this fixed volume is desired as the output from the pump, the electronically controlled throttle inlet valve throttles flow past a passive inlet check valve to reduce output. As a consequence, cavitation bubbles are generated during the intake stroke. Cavitation damage to surfaces that define the inlet port passage are avoided by a specifically shaped and sized cavitation flow adjuster extending from the valve member of the passive inlet check valve. By positioning the cavitation flow adjuster in the inlet port passage, a flow pattern is formed in a way to encourage cavitation bubble collapse away from surfaces that could result in unacceptable cavitation damage to the pump.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: June 19, 2012
    Assignee: Caterpillar Inc.
    Inventors: Ye Tian, David C. Mack, Alan R. Stockner
  • Patent number: 8162622
    Abstract: A compressor apparatus (20) has a housing (22) having first (53) and second (58) ports along a flowpath. One or more working elements (26; 28) cooperate with the housing (22) to define a compression path between suction (60) and discharge (62) locations along the flowpath. A check valve (70; 170; 270) has a valve element (72; 172; 272) mounted for movement between a first condition permitting downstream flow along the flowpath and a second condition blocking a reverse flow. The valve element includes a resonator (112; 174; 274).
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: April 24, 2012
    Assignee: Carrier Corporation
    Inventor: Stephen L. Shoulders
  • Patent number: 8162068
    Abstract: A pilot valve assembly for regulating the output of a first pressure source relative to a second pressure source, a fluid system equipped with the valve assembly, and a method of operating the valve assembly. The valve assembly includes a valve body with inlet and outlet ports and first and second sensing ports. The first and second sensing ports are adapted to sense, respectively, the fluid pressures of the first and second pressure sources. The inlet port is adapted for fluidically connecting to the first pressure source. The valve assembly defines a flow path between the inlet and outlet ports, and has components for allowing fluid flow from the inlet port, through the flow path, and to the outlet port only if the fluid pressure of the first pressure source exceeds the fluid pressure of the second pressure source by a differential by the flow-allowing components.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: April 24, 2012
    Assignee: Vanair Manufacturing, Inc.
    Inventor: Jeff Rohl
  • Patent number: 8092193
    Abstract: A self-lubricating water-cooled piston-style water pump has a unitary pump housing with a crankcase in direct water communication with the water pump inlet. A low pressure chamber is in direct water communication with the crankcase. A compression chamber is in direct pressurized water communication with a high pressure water manifold through a one-way valve. A high pressure water pump outlet extends outwardly from the manifold to the exterior of the housing. A crankshaft is connected to a connecting rod and a plunger rod, both of which are lubricated and water-cooled in the crankcase. A compression plunger has water channels therethrough connected to the plunger rod and in water communication with the low pressure chamber. The plunger is reciprocal within the compression chamber. A second one-way valve is on the plunger in the compression chamber to let water into the compression chamber.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: January 10, 2012
    Assignee: Diversified Dynamics Corporation
    Inventor: Steve Larson
  • Publication number: 20110217186
    Abstract: A high pressure fuel pump for use with a direct injection engine having a housing which defines a pump chamber. A port is formed in the housing which fluidly connects a fuel in the passageway with the pump chamber. An elongated valve is movably mounted within the housing between an open and a closed position. In its open position, the inlet passageway is fluidly connected with the pump chamber while, conversely, in the closed position the fuel valve blocks the fluid flow between the inlet passageway and the pump chamber. A circuit controls the deceleration of the valve to reduce pump noise.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 8, 2011
    Applicant: Hitachi, Ltd
    Inventors: Takashi Yoshizawa, Donald J. McCune, Harsha Badarinarayan, Akira Inoue
  • Patent number: 7931452
    Abstract: A compressor has a suction throttle valve, which includes a suction passage, a suction port, a valve body, an urging member, a valve chamber, a first communication hole, a closing valve and a valve seat. The closing valve closes the hole of the valve body by pressure difference between the valve chamber and the suction port. The valve seat limits movement of the closing valve toward the suction port. The hole of the valve body is closed when the closing valve is in contact with the valve body, and open when the closing valve is in contact with the valve seat. A communication passage is formed in the closing valve or the valve seat, which enables communication between the hole of the valve body and the suction port when the closing valve is in contact with the valve seat.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: April 26, 2011
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Sokichi Hibino, Shiro Hayashi, Masaki Ota
  • Patent number: 7921908
    Abstract: A downhole pumping system includes a submersible pump assembly having a pump and a motor, and an inlet apparatus operably coupled to the submersible pump assembly. The inlet apparatus includes a tubular housing for connection to an intake of the pump, the housing having an axis and defining a plurality of circumferentially spaced apart apertures, a plurality of valve members, each valve member positioned within a corresponding aperture, and a plurality of spring members coupled to the housing, each spring member coupled to a corresponding valve member. At least a portion of one or more of the spring members and the valve members extend above the outer surfaces of the housing.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: April 12, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Steven K. Tetzlaff, Lance T. Robinson
  • Patent number: 7854601
    Abstract: A lubricant-tight vane rotary vacuum pump includes at least one pump stage (17, 18) having a safety valve (3) for controlling gas flow to the pump stage, a lubricant pump, a lubricant reservoir (30) at least partially surrounding the pump stage housing (10, 40), and a hydraulic conduit (31) connecting the lubricant pump outlet (22) with the safety valve (3), with a pressurized lubricant flow through the hydraulic conduit (31) opening the safety valve (3), and a channel (32) branching from the hydraulic conduit (31) for delivering a pressurized lubricant into the lubricant reservoir (30).
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: December 21, 2010
    Assignee: Pfeiffer Vacuum GmbH
    Inventor: Juergen Wagner
  • Publication number: 20100260620
    Abstract: A screw compressor includes a casing, a screw rotor disposed in a cylinder portion of the casing to define a compression chamber, and a capacity control slide valve. Fluid sucked into the compression chamber is compressed by rotation of the screw rotor. The slide valve is slidable along a rotation axis of the screw rotor and is opposed to an outer circumferential surface of the screw rotor. The slide valve includes a dynamic pressure generator formed on an opposed surface of the slide valve that is opposed to the screw rotor to generate a dynamic pressure using fluid in contact with the opposed surface of the slide valve. The slide valve is configured so that the dynamic pressure generated by the dynamic pressure generator avoids contact between the slide valve and the screw rotor.
    Type: Application
    Filed: December 17, 2008
    Publication date: October 14, 2010
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Harunori Miyamura, Mohammod Anwar Hossain, Masanori Masuda
  • Publication number: 20100242922
    Abstract: A direct-injection system fuel pump having: at least one pumping chamber; a piston mounted to slide inside the pumping chamber to cyclically alter the volume of the pumping chamber; an intake channel connected to the pumping chamber and regulated by an intake valve; a delivery channel connected to the pumping chamber and regulated by a one-way delivery valve that only permits fuel flow from the pumping chamber; and a drain channel regulated by a one-way, maximum-pressure valve, which opens when the fuel pressure in the drain channel exceeds a threshold value, and which has a shutter movable along the drain channel, a valve seat engaged in fluidtight manner by the shutter, and a spring calibrated to push the shutter into a position engaging the valve seat in fluidtight manner.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 30, 2010
    Applicant: MAGNETI MARELLI S.p.A.
    Inventors: Luca MANCINI, Daniele DE VITA, Massimo MATTIOLI
  • Patent number: 7775190
    Abstract: A radial piston pump for supplying fuel at high-pressure to an internal combustion engine has a compression chamber arranged in a displacement housing, a reciprocating piston arranged in a cylinder chamber, a suction valve connected to a fuel supply line and has a spring-loaded closure body, an intermediate piece, a threaded pin and a pressure valve which is connected to a fuel outlet line. The closing body of the suction valve is embodied as a valve end pad with the spring exerting a force on the front end thereof. The valve end pad has a closure collar and at least two channels that are distributed around the periphery and which adjoin the closure collar and a base plate. A stop plate comprising an additional base plate borders the closure collar of the valve end pad as an intermediate piece to which the threaded pin is connected.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: August 17, 2010
    Assignee: Continental Automotive GmbH
    Inventor: Ngoc-Tam Vu
  • Publication number: 20100143162
    Abstract: A suction shutoff valve of a compressor which includes a modulating valve. The modulating valve includes a valve disk for covering a valve aperture, a bellows in sealed engagement with the egress end of a valve body, and a valve stem connecting the valve disk and the bellows. A bellows spring is disposed in the bellows for biasing the valve disk to open the valve aperture. When the pressure in the suction chamber decreases below a predetermined pressure, the bellows spring moves the bellows and the valve disk to open the valve aperture and increase fluid flow from the compression chamber to the bellows chamber to subsequently allow the valve piston to uncover the holes of the valve body and increase fluid flow through the suction shutoff valve to the suction chamber.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 10, 2010
    Applicant: Delphi Technologies, Inc.
    Inventor: Matthew R. Warren
  • Patent number: 7726285
    Abstract: A four stroke diesel engine combined with a supercharger is operable to supply varying amounts of air to the engine responsive to the load on the engine. The supercharger has a pair of rotors driven by the engine operable to move air to the engine. Gates associated with the rotors control the amount of air and pressure of the air moved by the rotors to the diesel engine.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: June 1, 2010
    Inventors: Craig N. Hansen, Paul C. Cross
  • Publication number: 20100098559
    Abstract: The invention relates to a pump comprising a pump unit, an intake line, and a valve device associated with same for implementing suction regulation of the pump, and comprising an intake region downstream from the valve device as viewed in the direction of flow of the medium conveyed by the pump.
    Type: Application
    Filed: February 13, 2008
    Publication date: April 22, 2010
    Applicant: IXETIC BAD HOMBURG GmbH
    Inventors: Peter Breuer, Bernd Brunsch, Stefan Gross
  • Publication number: 20100054958
    Abstract: The present air compressor system includes at least one piston stage connected to the air inlet of the compressor by an inlet valve and connected to the compressed air outlet of the compressor by an outlet valve; a motor driving the piston stage; and an adjustable throttle connected between the air inlet and the inlet valve. A controller controls the motor and the throttle to substantially close the throttle to unload the piston stage when necessary.
    Type: Application
    Filed: August 30, 2007
    Publication date: March 4, 2010
    Applicant: New York Air Brake Corporation
    Inventors: Michael Hartl, William B. McCurdy
  • Patent number: 7651321
    Abstract: Refrigerant gas is introduced into a suction chamber through a suction line. Refrigerant gas is allowed to flow from the crank chamber into the suction chamber through an outlet line. An open degree adjustment valve (34) has a first valve body for adjusting an open degree of the suction line and a second valve body for adjusting an open degree of the outlet line. The first valve body and the second valve body are connected to each other. The first valve body moves in such a manner as to increase the open degree of the suction line when the difference between the pressure in the suction chamber and the pressure in the crank chamber decreases, and reduce the open degree of the suction line when the difference between the pressure in the suction chamber and the pressure in the crank chamber increases. Thus, variation of gas pressure is reliably suppressed while maintaining favorable starting performance of the compressor.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: January 26, 2010
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Masaki Ota, Osamu Nakayama, Akinobu Kanai, Akihito Yamanouchi