With Stop Patents (Class 137/856)
  • Patent number: 10989197
    Abstract: The present disclosure provides a compressor including a rounded portion surrounding a discharge port, including a cylinder without an oil-blocking structure for ease of shaping the rounded portion, and including a valve-recess cover coupled to the cylinder. At least one valve-recess is defined in an outer face portion of the cylinder. A discharge valve assembly is fixedly received in the valve-recess, wherein the discharge valve assembly is configured for opening and closing the discharge port. The valve-recess is defined between the outer face, primary and secondary side blocks. The rounded portion surrounds the discharge port, to reduce a contact area between the discharge port and the valve assembly.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 27, 2021
    Assignee: LG Electronics Inc.
    Inventors: Seokhwan Moon, Seoung-Min Kang, Kiyoul Noh
  • Patent number: 10309392
    Abstract: A linear compressor and a method for controlling a compressor are provided. The compressor may include a piston that reciprocates within a cylinder, a linear motor that supplies a driving force to the piston, a discharge device through which a refrigerant compressed in the cylinder by the reciprocating motion of the piston is discharged, a pressure changing device that changes a variation rate of pressure applied to the piston before the piston reaches a virtual discharge surface (VDS) during the reciprocating motion, to prevent collision between the piston and the discharge device. The virtual discharge surface may be formed on at least a portion of the discharge device facing a compression space within the cylinder.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: June 4, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongyoon Choi, Sungjin Lim, Nayi Ryu, Chaehong Lim, Seunggeun Baek, Hyeongseok Kim
  • Patent number: 10190695
    Abstract: A convertible check valve having a pair of valve body sections, each of which includes a central passageway extending through it is disclosed. Each passageway terminates at an elliptical port. A moveable flapper is located within the check valve between the valve body sections and is movable between a between a closed state and an opened state, and vice versa, to effect the selective closing and opening of the ports. The valve body sections are configured to be rotated 180 degrees with respect to each other so that they are in an either an axially aligned state or in an elbow state. The interface between the passageways is formed by two elliptical shaped planar surfaces, each extending at an angle of 45 degrees to the central axis of the associated passageway. The valve also includes a pressure relief assembly.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: January 29, 2019
    Assignee: Cornell Pump Company
    Inventors: Carl Grompe, Andrew Enterline
  • Patent number: 10040467
    Abstract: A method of setting up a system to redistribute loose material; including the steps of: obtaining a blower assembly that is configured to generate a pressurized supply of air that is discharged at an outlet; obtaining a wheeled carrying unit for the blower assembly; and operatively positioning the blower assembly on a frame on the carrying unit. The carrying unit and blower assembly are configured so that with the blower assembly operatively positioned the carrying unit can be advanced by the user over the subjacent support surface to thereby cause pressurized air generated by the blower assembly to be directed to continuously and controllably redistribute loose material residing on the subjacent support surface.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: August 7, 2018
    Assignee: Crary Industries, Inc.
    Inventors: Arran Restall, Wayne Spier
  • Patent number: 9862144
    Abstract: Porosity causing gas-based defects are detected, located, identified, and/or characterized by the use of defect information generated from gas flow data corresponding to gas flow characteristics measured by one or more sensors on a composite part processing piece such as a mold or membrane used during a composite manufacturing process. The defect information is generated using techniques including one or more of profiling the gas flow data, fingerprinting, line leak detection, analytical triangulation.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: January 9, 2018
    Assignee: Convergent Manufacturing Technologies Inc.
    Inventors: Malcolm David Lane, Anoshiravan Poursartip, Goran Fernlund, Anthony Michael Floyd, David Andrew Van Ee, Morgan Edwin John Hibbert
  • Patent number: 9795759
    Abstract: A flow controller can include a conduit wall and a membrane coupled to the conduit wall. The membrane is configured to obstruct gas flow through the conduit. The flow controller includes a membrane controller, positioned adjacent to the membrane, wherein the membrane is positioned on one side of the membrane controller, such that the membrane controller impedes bending of the membrane in a second direction different from the first direction, thereby restricting gas flow through the conduit.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: October 24, 2017
    Assignee: VYAIRE MEDICAL CONSUMABLES LLC
    Inventors: Manuel Barraza, Michael J. Cegielski
  • Patent number: 9387472
    Abstract: The present invention generally relates to devices, systems, and methods for acquiring and/or dispensing a sample without introducing a gas into a microfluidic system, such as a liquid bridge system. An exemplary embodiment provides a sampling device including an outer sheath; a plurality of tubes within the sheath, in which at least one of the tubes acquires a sample, and at least one of the tubes expels a fluid that is immiscible with the sample, in which the at least one tube that acquires the sample is extendable beyond a distal end of the sheath and retractable to within the sheath; and a valve connected to a distal portion of the sheath, in which the valve opens when the tube extends beyond the distal end and closes when the tube retracts to within the sheath.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: July 12, 2016
    Assignee: Stokes Bio Limited
    Inventors: Mark Davies, Tara Dalton, Michael Sayers, Brian T. Chawke
  • Patent number: 9353773
    Abstract: The mounting arrangement is applied to a compressor which comprises: a piston having a cylindrical tubular body; and an actuating means connected to the piston to drive the latter in a reciprocating movement. The suction muffler comprises two tubular inserts, longitudinally disposed in the interior of the piston and having spaced apart open adjacent ends, and closed opposite ends respectively affixed to the top wall of the piston and to the actuating means, and defining, in the interior of the piston, a muffling chamber (C) and an annular passage medianly opened to the muffling chamber (C) and communicating an open rear end of the piston with a suction valve provided in a top wall of said piston.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: May 31, 2016
    Assignee: Whirlpool S.A.
    Inventors: Dietmar Erich Bernhard Lilie, Rinaldo Puff
  • Patent number: 9157427
    Abstract: A compressor includes a valve base plate, which is arranged between a suction chamber and a compression chamber and has a suction port. The valve base plate includes a sealing surface, a recessed groove, a receiving surface, and a support surface. The sealing surface is flush with a fixing surface and contacts the valve portion in an annular manner. The recessed groove is located at an outer side of the sealing surface and recessed with respect to the fixing surface. The recessed groove includes a bottom portion and separates an edge portion of the valve portion from the bottom portion. The receiving surface is flush with the fixing surface and capable of contacting a distal zone of the valve portion. The support surface is flush with the fixing surface and capable of contacting a middle zone located at an inner side of the sealing surface of the valve portion.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: October 13, 2015
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOKYU CO., LTD.
    Inventors: Hajime Kurita, Masakazu Obayashi, Yasushi Suzuki, Yoshio Kimoto, Masakazu Hashimoto, Takayuki Inoue, Katsuji Abe, Fumitaka Yoshizumi, Masakatsu Kuroishi, Yasuhiro Kondoh, Kazunori Yoshida
  • Patent number: 8869837
    Abstract: A compressor includes a discharge chamber, a compression chamber, a partition wall, and a discharge reed valve. The partition wall is arranged between the discharge chamber and the compression chamber and includes a fixing surface facing the discharge chamber. The partition wall includes a discharge port that communicates the discharge chamber and the compression chamber. The discharge reed valve includes a fixed portion, an intermediate portion, and a valve portion. The fixing surface includes a first groove portion, which extends around the discharge port, and a valve seat surface, which is arranged between the discharge port and the first groove portion. The first groove portion extends to a range overlapped with the intermediate portion. A part of the valve portion at a distal side does not close the first groove portion. The valve seat surface includes a receiving portion.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: October 28, 2014
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Takahiro Moroi, Masakazu Obayashi, Naofumi Kimura, Fumitaka Yoshizumi, Masakatsu Kuroishi, Yasuhiro Kondoh, Kazunori Yoshida
  • Patent number: 8726938
    Abstract: The invention relates to a membrane valve, in particular for inhalation devices, comprising a planar membrane made of permanently flexible material, a frame, which has an air opening that is somewhat smaller than the membrane, at least one web, which connects the frame to a retainer that is arranged approximately at the center of the air opening, and a pin, the shaft of which extends through a fastening opening approximately at the center of the membrane and is located in a retaining opening in the retainer, wherein the membrane lies on the frame in the rest state and wherein the pin is spread to form a head, the distance of which to the membrane is small in comparison to the thickness of the membrane or which head lies on the membrane, and the diameter of the shaft near the head is greater than the diameter of the fastening opening,; and the diameter of the shaft at the free end of the shaft is approximately equal to the diameter of the fastening opening.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: May 20, 2014
    Assignee: Unither Therapeutik GmbH
    Inventor: Joachim Kern
  • Patent number: 8668478
    Abstract: A scroll compressor includes a discharge valve assembly having a valve member, a valve stop supported within the compressor shell and including an aperture there through and a communication member. The communication member defines a fluid passage extending into the discharge chamber from the valve stop toward the first discharge outlet in the discharge chamber and provides fluid communication between the aperture in the valve stop and a location downstream of the valve stop. A first side of the valve member abuts the valve stop when in an open position and the valve stop provides communication between the first side of the valve member and the communication member via the aperture.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: March 11, 2014
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Xiaogeng Su, Weihua Guo, Hanqing Zhu, Xiaomin Qu
  • Patent number: 8608464
    Abstract: Check valve with a valve housing, on which is formed a valve seat. The valve seat is designed as an oblique face with respect to a flow direction. A shut-off element has at least one sheet-like shut-off tab which is composed of an elastically deformable material and which, in a shut-off position, bears against the valve seat and, in an opening position, is lifted off from the valve seat, in order to allow the passage of fluid. An abutment element is arranged on that side of the shut-off tab which faces away from the valve seat. The shut-off tab can abut against the abutment element in order to limit the amount by which the shut-off tab is lifted off from the valve seat.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: December 17, 2013
    Inventors: Peter Borst, Philip Schreier
  • Patent number: 8602061
    Abstract: A flow control valve includes a first passage portion having a seal portion formed at the rim of the opening of an outlet port of a first passage, a second passage portion having a second passage inflected from the first passage, and a valve plate. The valve plate has a valve body for opening and closing the outlet port, and a mounted portion formed at the outside peripheral end of the valve body and adapted for mounting to the mounting portion, and is adapted to open and close with mounted portion as the fulcrum point. The valve body includes a seat portion adapted to seat onto the seal portion, and an extension portion integrally formed with the seat portion and protruding towards the outflow side of the second passage from the seal portion.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 10, 2013
    Assignee: Toyoda Gosei Co., Ltd.
    Inventor: Kenichiro Kaneko
  • Patent number: 8579606
    Abstract: A fluid transportation device includes a valve seat, a valve cap, a valve membrane, and an actuating module. The valve seat has an outlet channel and an inlet channel. The valve cap has a tilt structure. The valve membrane has an inlet valve structure and an outlet valve structure. The actuating module has a vibration film and an actuator. When the fluid transportation device is in a non-actuation status, a pressure cavity with a gradually-increasing depth is defined. When a voltage is applied on the actuator to result in deformation of the actuator, the vibration film generates a pressure difference to push the fluid. The fluid is introduced into the inlet valve structure through the inlet channel, guided by the tilt structure of the valve cap to be flowed from the pressure cavity to the outlet valve structure, and then flowed out of the outlet channel.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: November 12, 2013
    Assignee: Microjet Technology Co., Ltd.
    Inventors: Shih-Chang Chen, Shih-Che Chiu, Tsung-Pat Chou
  • Patent number: 8568116
    Abstract: A compressor wherein a valve plate formed with a suction hole and a discharge hole is interposed between a cylinder head and a cylinder block and a discharge valve formed as a reed valve is provided relative to the discharge hole on the valve plate. The discharge hole is formed in a U-shape having a bottom part located at the tip side of the reed valve, and the reed valve is formed as a U-shape extending in correspondence to the U-shape of the discharge hole. The cross-sectional area of flow of discharge gas can be significantly increased to drastically reduce flow path resistance, and excessive compression may be suppressed to greatly improve the efficiency of the compressor.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: October 29, 2013
    Assignee: Sanden Corporation
    Inventor: Kanetaka Miyazawa
  • Patent number: 8342824
    Abstract: A piston compressor, particularly a refrigerant compressor includes a compression chamber in a compressor block, the compression chamber being delimited by a cylinder head (10), the cylinder head (10) comprising at least one valve plate arrangement with at least one suction valve (23, 24) and at least one pressure valve (21, 22), as well as a valve cover (12). To achieve low manufacturing costs, though maintaining a good efficiency, the valve plate arrangement (16) is formed by a carrier plate (17) that comprises the suction valve (23, 24, 26, 27) and the pressure valve (18, 19, 21, 22) and is connected by at least one gas-tight connection seam (28, 31) to the valve cover (12), the connection seam (28, 31) separating a suction area (32) and a pressure area (29, 30) from one another and sealing at least the pressure area (29, 30) towards the outside.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: January 1, 2013
    Assignee: Danfoss A/S
    Inventors: Jürgen Süss, Christian Jepsen
  • Patent number: 8181664
    Abstract: A releasing valve for an inflatable object has a body, a valve disk and a cap. The body is body and has a passage and a disk mount. The passage is defined through the body and has a bottom opening. The valve disk is attached securely to the bottom of the body to close the bottom opening of the passage and has a mounting end and a free end. The mounting end is mounted securely on the disk mount of the body. The free end is opposite to the mounting end. The cap is attached to the body around the bottom opening, holds the valve disk inside and has a stop. The stop selectively engages the free end of the valve disk when the valve disk being pushed away from the bottom opening for discharging air out from the inflating object via the releasing valve.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: May 22, 2012
    Assignee: Dongguan Tiger Point, Metal & Plastic Products Co., Ltd.
    Inventor: Chun-Chung Tsai
  • Patent number: 8128385
    Abstract: A valve structure includes a partition wall, a communicating bore, a valve body and a restraining portion. The partition wall is provided in a fluid container for dividing the fluid container into a first fluid chamber and a second fluid chamber. The communicating bore is provided at the partition wall for establishing a fluid communication between the first and second fluid chambers. The valve body is provided at the partition wall for establishing and interrupting the fluid communication between the first and second fluid chambers. Further, the valve body includes an umbrella shaped valve portion being flexibly deformable for opening and closing the communicating bore. The restraining portion is provided for restraining a deforming amount of the valve portion when the valve portion is deformed in a direction to be separated from the partition wall.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: March 6, 2012
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Yukihiko Takemi
  • Patent number: 8104514
    Abstract: A microfabricated fluidic unidirectional valve includes a microfabricated elastomer material having a flow through channel. The microfabricated fluidic unidirectional valve also includes an elastomer flap attached to the elastomer material in the flow through channel. The elastomer flap forms a seal in the flow through channel to prevent fluid from flowing in a first direction through the flow through channel and to allow fluid flow in a second direction through the flow through channel.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: January 31, 2012
    Assignee: Fluidigm Corporation
    Inventors: David Fernandes, Hou-Pu Chou, Marc A. Unger
  • Publication number: 20110203691
    Abstract: A non-return valve includes a valve housing having at least one inlet, at least one outlet, a first valve seat and a second valve seat; and an at least partially flexible sealing member forceable into a scaling engagement with the first valve seat in response to a first differential pressure and forceable into a sealing engagement with the second valve seat in response to a second differential pressure.
    Type: Application
    Filed: January 24, 2011
    Publication date: August 25, 2011
    Applicant: CARL FREUDENBERG KG
    Inventors: Torsten Gerlich, Volker Daume, Markus Porsch
  • Patent number: 7959421
    Abstract: A compressor includes a shell, a compression mechanism supported within a suction pressure region of the shell and including a discharge outlet in communication with the discharge chamber, and a discharge valve assembly. The discharge valve assembly includes a valve member, a valve stop including an opening therethrough, and a communication member defining a fluid passage and extending into the discharge chamber from the valve stop toward the discharge outlet in the discharge chamber to provide fluid communication between the opening in the valve stop and a location downstream of the valve stop.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: June 14, 2011
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Xiaogeng Su, Weihua Guo, Hanqing Zhu, Xiaomin Qu
  • Patent number: 7866961
    Abstract: A fixing bolt is inserted into a through hole of an end-face member and screwed with a screw hole of a valve holding member, by which a discharge valve is sandwiched by the end-face member and the valve holding member. Thus, since a thickness of the end-face member can be provided thinner, a capacity of a discharge hole of the end-face member is made smaller so that degradation of operating efficiency as well as increase of operating noise are prevented.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: January 11, 2011
    Assignee: Daikin Industries, Ltd.
    Inventor: Masanori Masuda
  • Patent number: 7802972
    Abstract: A valve guard for restricting the amount of deformation of a valve disc has a main body part abuttable with the back surface of the valve disc, and a fixation part extending to outside of a receding part. Upon mounting the valve guard to an end plate part, the fixation part is firmly attached to the outside of the receding part of the end plate part.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: September 28, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Takashi Shimizu, Yoshitaka Shibamoto, Kazuhiro Furusho, Kazutaka Hori, Takazo Sotojima, Masanori Masuda
  • Patent number: 7789634
    Abstract: A reed valve and a valve retainer for the reed valve are provided at a discharge port of a compression mechanism that compresses fluid. The valve retainer has a polymer actuator at an end part of a valve fixing part for fixing the reed valve. The polymer actuator expands or contracts in length to change a fixed length of the reed valve, thereby changing a rigidity of the reed valve. This attains appropriate control of responsiveness of the reed valve according to the volume.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: September 7, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Hirofumi Higashi, Masanori Masuda, Katsumi Sakitani
  • Patent number: 7762796
    Abstract: A valve assembly for a pump includes a pump chamber and a pump head having complementary recesses formed therein which cooperate to define a valve compartment including a pocket and an opposed seat. A flexible valve element is disposed between the recesses and adapted to move between a closed position against the seat which prevents fluid flow and an open position away from the valve seat which permits fluid flow. The dimensions of the valve compartment are selected to limit the movement of the valve element in the open position, which increases the pump efficiency and prevents damage to the valve element and/or valve overlap.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: July 27, 2010
    Assignee: Hargraves Technology Corporation
    Inventors: Donald Edwin Hargraves, Douglas Allan Curtis
  • Patent number: 7748967
    Abstract: Disclosed herein is a linear compressor in which a piston reciprocally moves in a cylinder upon receiving a reciprocating drive force of a linear motor to compress working-fluid, for example, refrigerant, received in the cylinder. The linear compressor comprises the piston adapted to reciprocally move in the cylinder, the piston being internally formed with a suction path, a suction valve to open or close the suction path of the piston to selectively connect the suction path of the piston to the interior of the cylinder, and a suction valve stopper to limit the degree of opening of the suction valve, whereby no excessive stress is applied to the suction valve. This has the effect of eliminating damage and deformation of the suction valve, minimizing vibration and noise due to the opening/closing operations of the suction valve, and maintaining the compression efficiency of the compressor at a constant value.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: July 6, 2010
    Assignee: LG Electronics Inc.
    Inventors: Kyeong Bae Park, Ki Chul Choi
  • Publication number: 20090232669
    Abstract: A refrigerant compressor including a discharge valve system, which is configured in such a manner that the discharge valve system includes recess (124) having discharge hole (125) which communicates with a compression chamber of a cylinder and opening on the bottom surface, a discharge reed (130) for covering discharge hole (125), and stopper (132) formed of a plate spring to be arranged above discharge reed (130), that discharge reed (130) and one end of stopper (132) is fixed to the bottom surface of recess (124) and the other end of stopper (132) comes into contact with contact portion (128) so that stopper (132) and the bottom surface of recess (124) defines a space therebetween, and that discharge reed (130) is arranged in the space. The refrigerant compressor having a high compression efficiency and low variation in noise level can be provided.
    Type: Application
    Filed: July 3, 2006
    Publication date: September 17, 2009
    Inventor: Toshihiko Ota
  • Publication number: 20090071560
    Abstract: A hermetic compressor having an improved discharge valve assembly to efficiently limit deformation of a stopper caused by a reed valve while achieving efficient opening operation of the reed valve. The hermetic compressor includes a compression chamber and a discharge valve assembly.
    Type: Application
    Filed: June 30, 2008
    Publication date: March 19, 2009
    Applicant: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Yong Yeon Jeong
  • Patent number: 7493915
    Abstract: Disclosed herein is a discharge valve for a compressor. The discharge valve comprises a valve plate for opening or closing a discharge port, a valve spring positioned downstream from the valve plate and adapted to provide elasticity to the valve plate, and a retainer positioned downstream from the valve spring and adapted to limit a maximum displacement of both the valve plate and the valve spring. The valve spring has a fluid-passage hole for the passage of fluid discharged from the discharge port. With such a configuration, the discharge valve can not only reduce flow loss and overshooting loss of the fluid, but also minimize backflow of the discharged fluid, resulting in an improvement in performance of the compressor.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: February 24, 2009
    Assignee: LG Electronics Inc.
    Inventors: Jeong Ho Lee, Ho Seon Rew
  • Patent number: 7413421
    Abstract: A multi-cylinder reciprocating compressor has a plurality of compression chambers and a plurality of discharge valve devices associated with the respective compression chambers. Each discharge valve device includes a valve reed for opening and closing a corresponding discharge hole formed through a valve plate, and a retainer for regulating the lift of the valve reed. The retainer includes a stopper surface inclined with respect to the valve plate as viewed in cross section of the retainer, and the stopper surface has one side edge and the other side edge located remoter from the valve plate than the one side edge. The discharge hole is positioned such that the center of gravity of the cross section thereof is shifted from the center of the valve reed in the width direction thereof toward the other side edge of the stopper surface.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: August 19, 2008
    Assignee: Sanden Corporation
    Inventor: Yoshinobu Ichikawa
  • Patent number: 7311119
    Abstract: A valve apparatus is small, and regulates a fuel amount by restricting a lift amount of a valve. A columnar portion is formed on a pump body. The columnar portion is inserted into a check valve and a washer formed with a protruding portion which protrudes outward from a flange portion, and the check valve and washer are attached or fixed to the pump body by subjecting a tip end of the columnar portion to thermal caulking or the like. An outer diameter of the protruding portion is set to be relatively smaller than an outer diameter of the flange portion such that when the check valve is sandwiched between the protruding portion and pump body, the check valve contacts an outer peripheral edge of the flange portion when the check valve opens. As a result, a lift amount of the valve can be restricted, and a flow rate of fuel passing through a passage can be maintained at a constant level.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: December 25, 2007
    Assignee: Mikuni Corporation
    Inventors: Norio Takehana, Noriaki Chiba, Hideki Imamatsu
  • Patent number: 7232294
    Abstract: In a compressor having a discharge valve mechanism, a valve retainer has a curved surface which is faced to and spaced from a movable portion of a flexible plate-like discharge valve and adapted to limit the movement of the movable portion. In a first direction parallel to the valve plate, the movable portion extends from a fixed portion, fixed to a valve plate, to face an exit end of a discharge hole of the valve plate. The curved surface has a plurality of parts different in radius of curvature from one another in a second direction parallel to the valve plate and perpendicular to the first direction.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: June 19, 2007
    Assignee: Sanden Corporation
    Inventors: Shigemi Shimizu, Shinji Nakamura, Takahiro Ito
  • Patent number: 7201189
    Abstract: A reed valve having a plate shaped support substrate with a valve hole formed in a central section passing through in a plate thickness direction is provided. A flexible plate-shaped reed covering the valve hole at one surface of the support substrate and having one end in a longitudinal direction that is fixed to the support substrate. The support substrate has a rib extending along a center line in a longitudinal direction of the inside of the valve hole, to divide the valve hole into two spaces. A surface of the rib opposite to the reed is positioned on substantially the same plane as a surface of the support substrate to which the rib is attached, and is adjacent to the reed.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: April 10, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hiroatu Inui, Takanori Osuka
  • Patent number: 7198475
    Abstract: A valve assembly of hermetic compressor is disclosed, in which a valve insertion groove (44) and (45) are formed. The valve insertion groove (44) includes a suction opening (42) on a head (40) provided between a cylinder (5) and a head cover (10), and the valve insertion groove (45) includes a discharge opening (43). An insertion type suction valve (50) and an insertion type discharge valve (60) are connected to said valve insertion grooves (44) and (45) respectively by spot welding. Accordingly, the valve assembly of hermetic compressor can make the valve smaller and simpler, so that reduced fabricating cost and improved productivity can be obtained. Also, at the same time dead volume can be reduced, thereby improving the compression efficiency.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: April 3, 2007
    Assignee: LG Electronics Inc.
    Inventors: Hyeon Kim, Jai-Seong Sim
  • Patent number: 7066296
    Abstract: A valve device for a silence opens a bypass passage provided in the silencer to flow exhaust gas through the bypass passage when exhaust gas pressure rises to a certain pressure. The valve device includes a base having a valve opening through which exhaust gas flows, and a plate-like valve for opening and closing the valve opening. The plate-like valve is fixed to the base at its proximal portion, and is bent at both edges thereof in a certain range extending from its distal end toward the proximal portion.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: June 27, 2006
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Yutaka Giken Co., Ltd.
    Inventors: Masayuki Uegane, Isao Hirokawa
  • Patent number: 7059344
    Abstract: A discharge valve mechanism has a plurality of discharge openings. The discharge openings are placed in an open or closed state by a plate-like valve element. Each of the discharge openings is formed at a respective location between a base end side and a leading end side of the valve element. The number of discharge openings to be placed in the open state is varied depending on the pressure and the flow rate of gas refrigerant discharged from a compression chamber.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: June 13, 2006
    Assignee: Daikin Industries, Ltd.
    Inventors: Yoshitaka Shibamoto, Hirofumi Higashi, Yoshinori Asano, Takashi Shimizu, Kazutaka Hori
  • Patent number: 7033151
    Abstract: A check valve of a scroll compressor which has a driving unit inserted in a casing and generating a driving force and a compression unit consisting of an orbiting scroll and fixed scroll for compressing and discharging fluid when the driving unit is driven, includes: a valve guide having one side fixed at an upper surface of the fixed scroll and having a certain space at an upper side of a discharge passage of the fixed scroll through which fluid is discharged, and a valve member with one side fixed at the upper surface of the fixed scroll, being slidably disposed in an horizontal direction at an inner surface of the valve guide, and performing an opening and closing operation on the discharge passage (34) by being slid in a horizontal direction of the valve guide.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: April 25, 2006
    Assignee: LG Electronics Inc.
    Inventor: Su-Chul Kim
  • Patent number: 7028649
    Abstract: A reed valve assembly in certain embodiments of the present teachings may include one or more of the following features: (a) a W shaped reed cage assembly having at least two reed cages, each reed cage having outer air ports and inner air ports wherein the inner air ports face one another, (b) a plurality of reeds that cover the inner and the outer air ports, the reeds secured to the reed cage assembly, and (c) a center splitter secured between the inner air ports of the reed cages, the center splitter having a shape designed to match the deflected shape of the inner reeds when the inner reeds open.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: April 18, 2006
    Assignee: Polaris Industries Inc.
    Inventors: Lawrence J. Hosaluk, Dan Erickson, Scott E. McKinster
  • Patent number: 7018183
    Abstract: A compressor having a discharge valve. The discharge valve is mounted to the fixed scroll of a scroll compressor using a C-shaped clamp. The clamp is secured using a threaded fastener which extends through the clamp at a position between the two legs of the clamp. The valve member is positioned within a recess on the scroll member and sealingly covers a discharge outlet through which compressed refrigerant is discharged from the working space of the compressor. The thickness of the scroll member at the location of the discharge outlet is less than the thickness of the scroll member at the location where the threaded fastener attached the clamp to the scroll member. The valve member is larger than the discharge outlet and the recess is dimensioned to limit the movement of the valve member such that it remains positioned over the discharge outlet.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: March 28, 2006
    Assignee: Tecumseh Products Company
    Inventors: David K. Haller, Robin G. Skinner
  • Patent number: 7011111
    Abstract: In sealing elements (3, 3?, 3?) for automatic compressor valves, composed of synthetic material (12) having embedded fiber reinforcement (11), the fiber reinforcement (11) and/or the surrounding synthetic material (12) in the finished sealing element (3, 3?, 3?) has an inhomogeneous distribution and/or locally different material characteristics under consideration of different local requirements.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: March 14, 2006
    Assignee: Hoerbiger Kompressortechnik Services GmbH
    Inventors: Bernhard Spiegl, Dietmar Artner
  • Patent number: 6942472
    Abstract: A head pressure relief assembly for relieving pressure in the head assembly of an air compressor may include an exhaust valve post formed in the head assembly and an exhaust valve assembly comprised of a flapper valve. An aperture may be formed through the exhaust valve post for venting the head assembly prior to start of the compressor assembly. The flapper valve is capable of engaging the exhaust valve post to close the aperture at least partially for preventing flow from the head assembly through the aperture during the compression stroke of the compressor assembly piston. A head pressure relief assembly may also include an aperture disposed in the head assembly, a connecting tube therefor, or a check valve.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: September 13, 2005
    Assignee: DeVilbiss Air Power Company
    Inventor: Edward A. Sieberg
  • Patent number: 6932585
    Abstract: A cylinder assembly of a hermetic compressor has a valve plate disposed on an outer side of a cylinder block to cover an open side of a cylinder, the valve plate defines a refrigerant discharge hole therethrough which is adapted to discharge a compressed refrigerant from the cylinder. A cylinder head disposed to cover the outer side of the valve plate defines a refrigerant discharge chamber in cooperation with the valve plate. A discharge valve is disposed between the valve plate and the cylinder head in a cantilever fashion with a central portion thereof covering the refrigerant discharge hole. A restricting mechanism comprising a first stopper member protruding from an inner wall of the cylinder head a distance such that a terminal edge of the first stopper member is at a predetermined distance from a free end of the discharge valve for restricting movement of the discharge valve.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: August 23, 2005
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventors: Jong-young Na, Yong-Tae Yoon
  • Patent number: 6893233
    Abstract: A cylinder assembly for a hermetic compressor is capable of reducing impulse and noise that is generated by a contact of a valve plate and a suction valve when the suction valve is closed. The cylinder assembly has a cylinder block having a cylinder formed therein; a cylinder head connected to the cylinder block, for sealing the cylinder off from outside; a valve plate disposed between the cylinder block and the cylinder head, the valve plate having a refrigerant suction hole; a suction valve disposed at a side of the valve plate for resiliently opening and closing the refrigerant suction hole; and a noise/impulse reducing device disposed between the suction valve and the valve plate so that the noise/impulse reducing device first contacts with the suction valve prior to contacting with the valve plate. During the refrigerant compression in the cylinder, the impulse and noise, which is generated by the hitting movement of the suction valve 38a against the valve plate, is reduced.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: May 17, 2005
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Myung-jung Hong
  • Patent number: 6823896
    Abstract: A valve assembly of a close-type reciprocal compressor. The valve assembly includes a valve plate disposed between a cylinder body and a cylinder head, a reed valve for opening and sealing a refrigerant discharge hole formed at the valve plate, a first stopper for resisting against a bending force of the reed valve bent when the refrigerant is discharged, a second stopper for resisting against a bending force of the first stopper by the reed valve, a keeper for limiting bending degree of the second stopper by the first stopper, and a bolt engaged with the keeper for connecting with the stopper bent by the reed valve. When refrigerant discharge pressure is increased, the resisting force against the bending force is added by the first stopper and the second stopper in turn, and thus compressing efficiency is increased by changing opening degree of the reed valve corresponding to the change of the pressure, and at the same time, noise can be reduced by lessening shock added to the reed valve.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: November 30, 2004
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Myung-jung Hong
  • Publication number: 20040216791
    Abstract: A reed valve having a plate shaped support substrate with a valve hole formed in a central section passing through in a plate thickness direction is provided. A flexible plate-shaped reed covering the valve hole at one surface of the support substrate and having one end in a longitudinal direction that is fixed to the support substrate. The support substrate has a rib extending along a center line in a longitudinal direction of the inside of the valve hole, to divide the valve hole into two spaces. A surface of the rib opposite to the reed is positioned on substantially the same plane as a surface of the support substrate to which the rib is attached, and is adjacent to the reed.
    Type: Application
    Filed: March 16, 2004
    Publication date: November 4, 2004
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Hiroatu Inui, Takanori Osuka
  • Patent number: 6789575
    Abstract: A high efficient valve assembly of a compressor has a valve plate having more than one discharging valve; a discharging valve for opening and closing the discharging valve, one end of the discharging valve is settled at the valve plate between the valve plate and a cylinder head; a stopper for controlling the discharging valve to be placed at a right position, both ends of the stopper are settled at the valve plate at an upper part of the discharging valve; a rivet for settling the discharging valve and the stopper at the valve plate; and settlement units for positioning the discharging valve at the valve plate at the right position and supporting the discharging valve. According to the present invention, the high efficient valve assembly has the discharging settlement units capable of settling the discharging valve of which only one end is supported and supporting the discharging valve, thus the assemble of the valve assembly can be easily done.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: September 14, 2004
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Gyu-chang Park
  • Patent number: 6772792
    Abstract: The valve assembly includes a valve plate having a refrigerant discharging hole, a discharging valve having one end that is settled at the valve plate for opening and closing the refrigerant discharging hole, a keeper, placed at above the discharging valve, having one end that is connected with the valve plate with the discharging valve for limiting lift of the discharging valve, and a bead protruded for a predetermined width W and height H at a lower side of the keeper. The lift L of the discharging valve can be maintained evenly, since the bead compresses an upper side of the discharging valve. Moreover, the discharging valve is firmly settled at the valve plate. Accordingly, abnormal noise generated when refrigerant is discharged can be reduced because the discharging valve operates with stability.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: August 10, 2004
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Ho-sang Rim
  • Patent number: 6766823
    Abstract: A valve apparatus for a hermetic compressor including a valve plate having a refrigerant discharging hole for discharging a refrigerant, a discharging valve having one end fixed at the valve plate and another end for opening and closing the refrigerant discharging hole, a stopper having one end fixed at the valve plate in order to support the discharging valve, a keeper disposed at an upper part of the stopper at a predetermined distance from the stopper and fixed at the valve plate, a first shock absorbing means for buffering an opening and a closing of the stopper by being disposed at the keeper, and a second shock absorbing means disposed at the keeper in order to move up and down. The second shock absorbing means is for buffering the opening and the closing of the stopper together with the first shock absorbing means.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: July 27, 2004
    Assignee: Samsung Gwangju Electronics, Co., Ltd.
    Inventor: Myung-jung Hong
  • Publication number: 20040052666
    Abstract: A valve assembly for a hermetic compressor in accordance with the present invention includes a cylinder head installed to an opened end of a cylinder having a specific space filled with a fluid and having a suction hole and a discharge hole, a suction valve fixed to a certain surface of the cylinder head and opening/closing the suction hole, a discharge valve fixed to the other surface of the cylinder head and opening/closing the discharge hole and a head cover fixed to the surface of the cylinder head and having a suction space at which a fluid is sucked and a discharge space at which a fluid is discharged.
    Type: Application
    Filed: June 26, 2003
    Publication date: March 18, 2004
    Inventor: Jae-Ho Cho