Inlet And Discharge Distributors Patents (Class 417/571)
  • Patent number: 10718322
    Abstract: A manual pumping means is capable of engaging an oil fill port of a vehicle motor so as to pressurize internal portions of the motor and thus propel the motor oil contained within the motor out of a drain portion and into a receiving vessel. The pump would allow extraction of the oil in an expeditious manner, therefore reducing the time required to perform an oil change upon the vehicle.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: July 21, 2020
    Inventor: Jason A. Rogish
  • Patent number: 10288023
    Abstract: A pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine; the pump unit (1) comprising: a head (4) inside which a cylinder (12) extending along an axis (A1) is formed; a pumping piston (5) extending along the axis (A1) and slidingly coupled with the cylinder (12); a through-hole (13) which extends from the cylinder (12) towards the outside of the pump unit (1); an intake chamber (8) communicating with the cylinder (12) via the hole (13); an intake valve (7) which controls the flow of fuel from the intake chamber (8) to the hole (13); a cap (23; 123; 223) which is connected to the head (4), is arranged on the opposite side to the pumping piston (5) and can be selectively fixed along an outer surface (25) of the head (4) so as to close the intake chamber (8) on one side.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: May 14, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Benedetto Loiacono, Domenico Macchia, Luisa Moscarella, Michele Antonio Iannuzzi
  • Patent number: 10138878
    Abstract: An improved air compressor includes a cylinder fitted with a piston body, a main frame for mounting a motor, and an air storage container. The cylinder defines at its top wall a plurality of exit holes, which are separated by a plurality of blocking walls and regulated by a resilient sheet having a plurality of branches corresponding to the exit holes. When the compressed air produced in the cylinder pushes the resilient sheet up to open the exit holes, the instantaneous high-pressure air that flows through the exit holes can be restrained by the air blocking walls to prevent the air from interfering with movements of the branches of the resilient sheet, so that the piston body can conduct reciprocating motion more smoothly and thus the performance of the air compressor can be increased.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: November 27, 2018
    Inventor: Wen-San Chou
  • Patent number: 10132310
    Abstract: An improved motor includes a cylinder defining multiple exit holes of different diameters, which are respectively controlled by a resilient sheet having multiple branches to communicate with an air storage container. In operation, when a piston body conducts reciprocating motion in the cylinder, the compressed air produced in the cylinder can quickly enter the air storage container. The branches of the resilient sheet are subjected to different back force resulting from the compressed air in the air storage container, wherein the smallest branch of the resilient sheet is subjected to a smallest back force, so that the compressed air produced in the cylinder can enter the air storage container more easily through the smallest exit hole, so that the piston body can conduct reciprocating motion more smoothly and thus the performance of the air compressor can be increased.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: November 20, 2018
    Inventor: Wen-San Chou
  • Patent number: 9745973
    Abstract: A hermetic compressor includes a closed vessel for storing lubricating oil, an electric-driving element, and a compressing element driven by the electric-driving element. The compressing element includes a cylinder block forming a compression chamber, a piton that reciprocates inside the compression chamber, and an oiling device for supplying the lubricating oil to an outer circumference of the piston. A first oil groove is concavely formed on the outer circumference of the piston, and a second oil groove is concavely formed on a side opposite to the compression chamber relative to the first oil groove. The second oil groove has a spatial volume same or greater than that of the first oil groove. An expanded clearance portion is provided such that a clearance between the piston and the cylindrical hole portion broadens from a top dead point to a bottom dead point.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: August 29, 2017
    Assignee: PANASONIC CORPORATION
    Inventors: Ko Inagaki, Akira Nakano, Yoshinori Ishida, Ichiro Morita
  • Patent number: 9328725
    Abstract: An air compressor assembly includes a cylinder housing, an outlet receptacle disposed on the cylinder housing, and a partition having an air passage formed between the cylinder housing and the outlet receptacle, and a piston slidably received in the cylinder housing for generating a pressurized air, the partition includes a channel communicating with the chamber of the cylinder housing, and the cylinder housing includes a compartment formed in a casing and communicating with the channel of the partition for partially receiving the pressurized air and for buffering purposes. An adjustable plug is engaged in the casing for adjusting the volume of the compartment of the casing.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: May 3, 2016
    Inventor: Wen San Chou
  • Patent number: 9243630
    Abstract: Disclosed is an improved segmented fluid end for high-pressure plunger pumps. One segmented fluid end includes one or more fluid end modules, each fluid end module including a body providing a plunger bore configured to receive a plunger therein and a discharge outlet in fluid communication with the plunger bore, wherein a pressurized working fluid may exit the body of each fluid end module via the discharge outlet, a discharge manifold having an elongate manifold body configured to be operatively coupled to each fluid end module, the manifold body providing a first end, a second end, a discharge bore extending between the first and second ends, and one or more discharge inlets that fluidly communicate with the discharge bore, and a ring joint gasket arranged between each discharge inlet of the discharge manifold and a corresponding discharge outlet of the one or more fluid end modules.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: January 26, 2016
    Assignee: SOUTHWEST OILFIELD PRODUCTS, INC.
    Inventor: Earl Foote
  • Patent number: 9011118
    Abstract: An air compressor with enhanced air compressing effect comprises a mounting chassis with a coupling aperture, a piston having a piston rod with a crankpin linking bore and a piston head with an air acting face, a cylinder having an air chamber with an inner top wall, and a driving mechanism including a motor having a shaft and a rotational crank cam with an eccentric crankpin. The coupling aperture on the mounting chassis is bias disposed relative to the axial line of the cylinder. Both of the air acting face on piston head and inner top wall in cylinder are configured into corresponding slant planar surface. The eccentric crankpin on the crank cam pivotally links the crankpin linking bore on the piston rod of the piston so that rotary motion of the crank cam is converted into linear reciprocating motion. Thus, air compressing effect is substantially enhanced.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: April 21, 2015
    Inventor: Wen-San Chou
  • Patent number: 8998593
    Abstract: A fluid end assembly including a pump housing with a number of interior passages for the flow of fluids. The housing has a plunger bore with a closed inner end and an open outer end. A suction passage intersects the plunger bore. A discharge passage intersects both the plunger bore and the suction passage such that the discharge passage, the suction passage, and the plunger bore radiate outwardly from their point of intersection to define a shape resembling a “Y”. A connector passage branches from the discharge passage. An outlet passage intersects the connector passage and passes through the pump housing at right angles to the plunger bore. A reciprocating plunger is located in the plunger bore. A suction valve is located in the suction passage. A discharge valve is located in the discharge passage. A fluid supply manifold is pivotally secured to the housing and is in fluid communication with the suction passage.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: April 7, 2015
    Assignee: J-Mac Tool, Inc.
    Inventor: Berton L. Vicars
  • Patent number: 8967189
    Abstract: The hollow valve plate 1 of a piston compressor for liquid-cooled reed valves comprises a single half-shell 3 with cooling channels 4 which are open on the cylinder side, which said half-shell is covered by a reed plate 2 which is preferably welded or glued at least along the cooling channels 4 and has in the area of the suction openings 5 in each case one suction reed 6 which is machined out and is integrally connected on one side. Production and assembly are thereby simplified and the clearance is reduced.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: March 3, 2015
    Assignee: Hoerbiger Kompressortechnik Holding GmbH
    Inventors: Roland Cesak, Olaf Bielmeier
  • Patent number: 8950432
    Abstract: The hollow valve plate (1) of a piston compressor includes a single half-shell (3) with cooling channels (4, 5) that are open toward the side of the pressure valves (8), with said half-shell being covered by a reed plate 2 that is preferably welded or glued at least along the cooling channels (4, 5), and that is formed as a lift-stop (9) for the inserted closing plates (10) in the area or the pressure valves (8). This results in a simplification of the production and assembly of such valve plates.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: February 10, 2015
    Assignee: Hoerbiger Kompressortechnik Holding GmbH
    Inventors: Roland Cesak, Olaf Bielmeier
  • Patent number: 8864475
    Abstract: In general, a piston-type pump includes a wash flow path that allows a wash liquid such as water to pass through to provide washing and cleaning as the pump operates. The pump may be used in precision liquid dispensing systems and particularly with liquid solutions that have a tendency to precipitate solid particulate. By washing a portion of the pump piston, the liquid solution being dispensed and any solid particulates may be carried away and removed from the pump.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: October 21, 2014
    Assignee: Ivek Corporation
    Inventor: Douglas S. Bensley
  • Patent number: 8777589
    Abstract: A system for actuation in an admission valve of a gas compressor including an admission valve being configured to allow the input of gas inside the cylinder upon the axial movement of the piston in a first axial direction; and a discharge valve configured to allow the output of gas from inside the cylinder upon the axial movement of the piston in a second axial direction opposite to the first axial direction. The system includes at least one actuator element, operatively associated with the admission valve, capable of keeping the admission valve open when the electric motor stops and starts-up. The actuator element is also capable of allowing opening and closing of the admission valve upon the regime of work of the electric motor. The present development also refers to refrigeration equipment which includes the above-mentioned gas compressor.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: July 15, 2014
    Assignee: Whirlpool S.A.
    Inventors: Egidio Berwanger, Humberto Ferreira da Câmara, Edmar Baars, Ingwald Vollrath
  • Publication number: 20140134022
    Abstract: To implement a very compact cylinder head having an integrated unloader, it is provided that a unloader ring 20 having a plurality of unloader fingers 21 passing through the intake channels 16 of the intake valve 5 is arranged in the ring-shaped intake chamber 11 such that the unloader ring 20 is guided on the wall 24, 31 of the intake chamber 11, where it is arranged displaceably by means of the circumferential surface 23 of the unloader ring 20 on the outside radially or by the circumferential surface 30 of the unloader ring 20 on the inside radially; a radial step 25 is provided on the circumferential surface 23 of the unloader ring on the outside radially or on the circumferential surface 30 of the unloader ring 20 on the inside radially, and a control chamber 26 is formed between the wall 24, 31 of the intake chamber 11 and the radial step 25, this control chamber being connected to a control line 27 for supplying a control medium into the control chamber 26 and a lower stop (32) for the unloader ring (2
    Type: Application
    Filed: November 15, 2013
    Publication date: May 15, 2014
    Applicant: Hoerbiger Kompressortechnik Holding GmbH
    Inventors: Bernhard Spiegl, Andreas Brandl, Roland Cesak
  • Publication number: 20140112812
    Abstract: The present invention inhibits suction of dust and moisture into a drive chamber for driving a piston of a fluid pump while reducing drive load through feeding/discharging of fluid to/from the drive chamber. In the interior of a cylinder, a pressure increasing/decreasing chamber is formed between a valve unit on the cylinder head side and the piston. On the opposite side of the pressure increasing/decreasing chamber, the drive chamber is disposed. There are provided a ventilation path for communicating the drive chamber and the outside space, a fluid path connected to the feeding/discharging space of the valve unit, a merging space where the fluid path is merged with the ventilation path midway, and a fluid filter provided in the merging space.
    Type: Application
    Filed: May 31, 2012
    Publication date: April 24, 2014
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Yukihiko Takemi
  • Patent number: 8690554
    Abstract: A diaphragm pump is provided that features a valve housing configured with inlet openings and outlet openings; inlet duckbill check valve assemblies, each configured to be arranged in a respective inlet opening; and outlet duckbill check valve assemblies, each configured to be arranged in a respective outlet opening; each duckbill check valve assembly comprising: a duckbill check valve seat configured with an end having a slit to open to provide the fluid and particulate, and to close to prevent the backflow of the fluid and particulate; and a duckbill check valve support having a base portion configured to be inserted inside the duckbill check valve seat, and having a W-shaped portion configured with an opening to pass the fluid and particulate through the duckbill check valve support to the duckbill check valve seat and also configured to provide support for walls of the duckbill check valve seat in response to back pressure caused by the fluid and particulate.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: April 8, 2014
    Assignee: Xylem IP Holdings LLC
    Inventors: Manuel Villagomez, Humberto V. Meza, David L. Phillips
  • Patent number: 8622315
    Abstract: With reference to FIG. 1, the present invention provides a fuel injector (19) comprising a reed valve (35). The reed valve has at least one orifice and at least one reed valve blade, the or each reed valve blade having a valve head attached to at least one resilient spring arm. The or each valve head opens and closes a respective orifice in the valve seat. A support surrounds the reed valve blade(s). Each spring arm extending inwardly from the support. Each spring arm is curved.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: January 7, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Paul Bartholomew Ravenhill, Richard Matthew Hoolahan, Jeffrey Allen, Steven Barraclough
  • 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: 8469681
    Abstract: A double-diaphragm pump includes a pair of axially spaced apart pumping chambers, each chamber having a pumping diaphragm which divides each chamber into an inner and outer compartment. Inner ends of both pumping chambers are closed by a central element, and fluid is supplied to the outer compartments to cause the diaphragms to oscillate and vary the capacities of the inner compartments. I Each of the inner compartments having an inlet and an outlet port leading to unidirectional valves to allow fluid to be drawn into one of the compartments when the appropriate diaphragm moves outwardly and expelled from that compartment when the diaphragm moves inwardly. The unidirectional valves are located in inlet and outlet manifolds in the central element and are accessed and fitted through the inlet and outlet ports in the inner compartments.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: June 25, 2013
    Assignee: Flotronic Pumps Limited
    Inventor: Peter Wheal
  • Patent number: 8408886
    Abstract: High pressure plunger pump, comprising at least two in-line cylinders as seat for respective plungers, where each cylinder is connected via respective conduits and relative valves to an intake manifold and to a delivery manifold, the cylinders are provided within a single block together with the conduits and the manifold; the intake manifold is positioned in front of the line of cylinders and is in direct communication with the cylinders via a conduit connected to a dead compartment provided as an extension of the respective cylinder and in which the intake valve is located; the intake valve is retained in position by the actual valve seat sealing gaskets or by an elastic plate.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: April 2, 2013
    Assignee: Annovi Reverberi S.p.A.
    Inventor: Fabrizio Fabbri
  • Patent number: 8398385
    Abstract: Refrigerant compressor for a hermetically encapsulated small refrigerator, which has a piston (20) guided in a piston bore (3) of a cylinder housing (1), the cylinder housing being frontally terminated using a valve plate (7) having a pressure opening (17) and a suction opening (16) and also being frontally provided with holes (5), which each have a thread.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: March 19, 2013
    Assignee: ACC Austria GmbH
    Inventor: Alfred Freiberger
  • Patent number: 8348644
    Abstract: A pump includes a cylinder and a plunger. The cylinder defines an outlet-side passage therein. The plunger is reciprocably received within the cylinder. An inner peripheral surface of the cylinder and an end surface of the plunger define a pump chamber. The outlet-side passage is communicated with the pump chamber. When the plunger reciprocates within the cylinder, fluid inside the pump chamber is pressurized such that fluid is discharged to an exterior through the outlet-side passage. The inner peripheral surface includes a spherical surface part that surrounds the pump chamber. The spherical surface part is defined by a curved surface having a predetermined curvature such that the pump chamber defines a spherical space. The spherical surface part is provided with an opening of the outlet-side passage, which has a circular shape when observed from a spherical center of the pump chamber.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: January 8, 2013
    Assignee: Denso Corporation
    Inventor: Shinya Tsutsumidani
  • 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
  • Publication number: 20120294746
    Abstract: A cylinder head for a pump. The pump includes a piston and a cylinder block at least partially defining a cylinder chamber receiving the piston. The cylinder head is couplable to the cylinder block. The cylinder head includes an inlet manifold formed as a single piece, an outlet manifold formed as a single piece separate from the inlet manifold, and a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold formed as a single piece separate from the inlet manifold and separate from the outlet manifold. The pressure chamber is formed of a first material, and at least one of the inlet manifold and the outlet manifold is formed of a second material different than the first material.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 22, 2012
    Inventor: Sven Eschrich
  • Patent number: 8282368
    Abstract: A check valve. An illustrative embodiment of the check valve includes a valve body, a plurality of discharge port openings having at least one of a non-uniform width and a non-uniform position extending through the valve body and a flexible valve disk disposed generally adjacent to the valve body.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: October 9, 2012
    Assignee: Ford Global Technologies, LLC
    Inventor: Peter Francis Worrel
  • Patent number: 8226386
    Abstract: Once the production route by the tubing has been selected, the stem travels through the inside of a guide whose upper end has a diameter adjusted to that of a rod which develops, increasing until it is connected to a barrel. The upper part of a anchor is arranged in the lower part of the barrel. The lower part of the anchor is connected to a nipple fixed to a transfer box. The fluid passage from an admission valve to the barrel in the upward stroke and the emptying of the barrel in the downward stroke is linked at least with a connector disposed between a basket and the transfer box. The basket houses the ball and the seat of at least one production valve arranged together with at least one connector in a carrier body retained between the transfer box on the top and a cage at the bottom and fitted to a conduit. The admission valve is housed inside the cage and it is provided with a ball that releases or obstructs the fluid passage.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: July 24, 2012
    Inventor: Carlos Alberto Cifuentes
  • Patent number: 8221100
    Abstract: A valve seat for use in a high pressure pump comprises an inner portion force fit within an outer portion. The outer portion has a fluid plenum at an outer peripheral surface. Fluid passages extend radially inwardly to communicate with a valve recess in the inner portion. A seal housing for a high pressure pump comprises an outer portion and an inner portion. The inner portion is force fit within the outer portion. The inner portion has an inner bore having a first location to receive seal packings, and a second location to receive valve spring structure. The inner portion has a curved surface that bottoms out against a curved surface within the outer portion.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: July 17, 2012
    Assignee: NLB Corp.
    Inventors: Jamie A. Forrest, Matthew O. Herhold
  • Patent number: 8206130
    Abstract: A radial cylinder hydraulic motor comprises: oscillating hydraulic cylinders (1) driven to oscillate by means of an eccentric crankpin (2) formed on the motor shaft (3), the oscillating cylinder liners (4) being provided with trunnions (5) for oscillation about a parallel axis (C) to the axis (A) of rotation of the motor shaft which are coupled oscillably to the motor crankcase (6); reciprocating pistons (7) within said liners which are provided with a runner (8) for sliding over the outer surface (9) of said eccentric crankpin; and a rotary disk distributor (10, 23) coupled to the motor shaft for synchronized rotation therewith, adapted to place the conduits (12, 13) of the hydraulic circuit in fluid communication with the conduits (14) of the respective cylinders during the delivery and discharge strokes via ports of slanted or through-going configuration; and advantageously includes the rotating disk of the distributor formed with a connection/supply means (38, 40) to the passageway between one face (27) a
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: June 26, 2012
    Assignee: S.A.I. Societa' Apparecchiature Idrauliche S.p.A.
    Inventors: Vittorio Pecorari, Davide Pecorari
  • Patent number: 8206137
    Abstract: There is provided a cylinder apparatus consisting of a cylinder, a piston performing reciprocating motion between a top dead point and a bottom dead point with oscillatory movement in the cylinder, wherein the cylinder has an oscillatory distance between the top dead point and the bottom dead point, which is shorter than the oscillatory distance at the top and bottom dead points.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: June 26, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Susumu Sakamoto, Daisuke Takahashi, Junichi Nagasawa
  • Publication number: 20120156075
    Abstract: A collapsible bilge pump includes outer and inner cylinders telescopable between retracted and extended posiions. A piston is movable up and down within the inner cylinder. Check valves in the bottom of the outer cylinder and in the piston permit the pump to take in water at the bottom end of the pump and discharge it from the top end. The collapsible pump is easily stowed, and its short stroke, limited to the length of the inner cylinder, is substantaially easier to perform.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 21, 2012
    Inventor: Kenneth W. Altfather
  • Patent number: 8197240
    Abstract: A compressor may include a compressor body defining a compression cylinder, a compressor head coupled to the compressor body, and a valve plate assembly disposed between the compressor head and the compressor body. The valve plate assembly may include a first valve plate formed as a unitary casting and defining a suction chamber exposed to a suction pressure region of the compressor.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: June 12, 2012
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Richard A. Obara, Brad A. Schulze
  • Patent number: 8186978
    Abstract: A pump includes a housing with a pumping chamber, first and second check valves, and an inlet and an outlet in fluid communication with the pumping chamber through the check valves. The housing also includes a linear actuator with a pumping element located in the pumping chamber wherein actuation of the linear actuator induces the pumping element to move between the first and second check valves between a first position wherein the pump element moves toward the first check valve and generates a positive pressure in the pumping chamber that maintains the first check valve closed and opens the second check valve to allow fluid to flow to the outlet, and a second position wherein the pumping element moves away from the first check valve and reduces the pressure in the pumping chamber to allow the first check valve to open and draw in fluid from the inlet.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: May 29, 2012
    Assignee: Humphrey Products Company
    Inventors: Thomas H. Tinholt, Jeffrey J. Elsesser
  • Patent number: 8157549
    Abstract: A multi-channel fluid conveying apparatus, for delivering a fluid, includes a valve seat, a valve cover, a valve membrane, a plurality of temporary-deposit chambers, and an actuating device. The valve seat includes at least one inlet channel and at least one outlet channel. The valve cover is arranged on the valve seat. The valve membrane is interposed between the valve seat and the valve cover and includes a plurality of valve structures made of the same material with the same thickness, wherein at least one of the valve structures has a rigidity different from those of other valve structures. The plurality of temporary-deposit chambers is interposed between the valve membrane and the valve cover and between the valve membrane and the valve seat. The actuating device is, having a periphery, fixed to the valve cover.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: April 17, 2012
    Assignee: Microjet Technology Co., Ltd.
    Inventors: Shih Chang Chen, Chiang Ho Cheng, Ying Lun Chang, Rong Ho Yu, Shih Che Chiu
  • Patent number: 8147226
    Abstract: A pressure washer pump generally includes a pump housing that defines a cavity, an opening into the cavity and a bottom of the cavity generally opposite the opening. A valve assembly is disposed in the cavity through the opening. The valve assembly includes a cage member that contains a first valve mechanism. A plug member is received in the opening to fluidly seal the cavity of the pump housing. A compliant member is disposed between the plug member and the cage member. The cage member is disposed between the compliant member and the bottom of the cavity and spaced from the plug member.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: April 3, 2012
    Assignee: Black & Decker Inc.
    Inventors: Dinesh V. Koka, Gregory L. Parris, Kenneth D. Butler, Shane Dexter, Allen C. Palmer, Michael C. Hollis, Jason F. Busschaert
  • 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: 8100103
    Abstract: A cylinder head cover for a reciprocating compressor cylinder. The cover includes a first plate having a first and second channel in a surface of the first plate. The first and second channels merge within the plate at a first opening through the bottom surface of the first plate. A second plate has a pair of bores each aligned with one of the first and second channels in the first plate. A fourth plate is fastened over the second plate forming a cavity between the second and fourth plates. The fourth plate has a pair of spaced bores aligned with the bores through the second plate. A rotating third plate is disposed between the second and fourth plates. This third plate has a pair of spaced bores for sequentially aligning with one of the pair of bores through the second plate.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: January 24, 2012
    Inventor: Renato Bastos Ribeiro
  • Patent number: 8096791
    Abstract: A suction valve for a small hermetic compressor formed as a flexible vane having a fixed end portion, a bending median portion and a sealing end portion with the distance between the external edge portion of the vane and an internal edge portion of the vane.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: January 17, 2012
    Assignee: Whirlpool S.A.
    Inventors: Marcos Giovani Dropa Bortoli, Fabricio Caldeira Possamai, Dietmar Erich Bernhard Lilie, Marcio Luiz Todescat
  • Patent number: 8074679
    Abstract: A fluid end assembly for a high pressure pump receives a fluid from a fluid supply manifold and supplies the fluid to an outlet manifold. The assembly includes a housing with a removable suction module. The housing has a plunger bore to receive a reciprocating plunger, a suction passage intersects said plunger bore, and a discharge passage intersects both said plunger bore and said suction passage. The removable suction module has an inlet passage.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: December 13, 2011
    Assignee: Gardner Denver, Inc.
    Inventors: Ernest Jerome Jensen, Anthony Waylan McLain
  • Patent number: 8075287
    Abstract: A fluid pump includes a plunger that is movable to pressurize fluid drawn from an inlet into a compression chamber. The plunger is substantially axially movable in a cylinder. Fluid pressurized in the compression chamber is discharged through an outlet. The inlet and the outlet define a fluid passage therebetween. A solenoid valve communicates and blocks the fluid passage to control fluid discharged through the outlet. A solenoid valve support supports the solenoid valve. At least one of the inlet, the outlet, and the solenoid valve support is formed of a ferrous material integrally with the cylinder by monoblock casting.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: December 13, 2011
    Assignee: Denso Corporation
    Inventor: Hiroshi Inoue
  • Patent number: 8057200
    Abstract: The present invention discloses a linear compressor in which a piston is linearly reciprocated inside a cylinder, for sicking a refrigerant into a compression space between the piston and the cylinder, and compressing and discharging the refrigerant, and especially, a structure of discharging the refrigerant for the linear compressor which can reduce a pulsation of a high pressure discharged refrigerant, by making the refrigerant compressed in the compression space flow from a sub-discharge space with a relatively small volume to a sub-discharge space with a relatively large volume in a discharge chamber. As a result, the structure of discharging the refrigerant for the linear compressor can efficiently reduce noise and vibration.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: November 15, 2011
    Assignee: LG Electronics Inc.
    Inventors: Kyoung-Seok Kang, Yangjun Kang, Jong-Koo Lee, Jin-taek Oh, Min-Woo Lee, Kwang-Wook Kim, Gye-Young Song
  • Patent number: 7959416
    Abstract: A suction system for a refrigerator compressor includes a suction muffler with an outlet tube mounted to a valve plate and a cylinder head having a reinforced portion in the area of the valve plate and the outlet tube.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: June 14, 2011
    Assignee: Whirlpool S.A.
    Inventors: Raul Bosco, Jr., Fabian Fagotti, Marcos Giovani Dropa de Bortoli
  • Patent number: 7934913
    Abstract: The invention concerns a piston compressor, particularly a hermetic refrigerant compressor, with a compression chamber, which is limited by a valve plate arrangement having a valve plate with a suction gas opening and a pressure gas opening, a suction valve plate with a suction valve element, and a pressure valve plate with a pressure valve element. It is endeavored to achieve a good efficiency combined with a simple assembly. For this purpose, it is ensured that the pressure valve plate and the suction valve plate are located on the side of the valve plate facing the compression chamber.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: May 3, 2011
    Assignee: Danfoss Compressors GmbH
    Inventors: Frank Holm Iversen, Marten Nommensen
  • Patent number: 7922459
    Abstract: A pressure-generating device includes an axle hub having a rotary shaft portion supported rotatably in a nonrotatable cylindrical support portion via bearings; a piston attached to the rotary shaft portion in a unitarily rotatable manner and so as to perform a pumping action, and, in cooperation with the rotary shaft portion, forming a pump chamber therebetween; a cam member and cam followers for converting a rotary motion of the axle hub in relation to the cylindrical support member to the pumping action of the piston; a suction path formed in the axle hub and enabling introduction of air into the pump chamber; and a discharge path formed in the axle hub and enabling discharge of air from the pump chamber.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: April 12, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroshi Isono
  • Publication number: 20110076171
    Abstract: Disclosed is a suction valve of a variable capacity compressor for vehicle including: a valve sheet, a valve case, a spool valve, and a resilient member, wherein the valve case includes a first coolant discharging port and a pair of second coolant discharging ports, each second coolant discharging port being smaller in size than the first coolant discharging port, and wherein the spool valve includes a plurality of first grooves and two pairs of second grooves which are formed on the first grooves so that the second grooves in each pair face each other and a coolant may be introduced from the bottom surface of the valve case, and wherein when the spool valve is initially opened, the coolant is introduced through the first and second grooves.
    Type: Application
    Filed: June 30, 2010
    Publication date: March 31, 2011
    Inventors: Jang Sik Park, Ki Yeon Kim, Jin Sang Kim
  • Patent number: 7850437
    Abstract: A reed valve having a plurality of tips and associated recesses is provided as a compressor suction valve with each valve tip coacting with a suction port. The recesses are located in the housing structure defining the cylinder of the compressor and are spaced a distance on the order of 0.1 inches from the tips when the suction valve is closed. The valve is secured on one side of the cylinder and each tip is located along a line from the center of the cylinder through the center, or axis, of a suction port.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: December 14, 2010
    Assignee: Carrier Corporation
    Inventors: Scott M. MacBain, Ronald J. Duppert
  • Patent number: 7771176
    Abstract: The invention relates to a micropump comprising a pump membrane (5) which can be moved by modifying the volume of a pump chamber which is adjacent to the pump membrane (5) and a base part (1), also comprising two valves which are arranged in recesses (10,11) in the base part and react to the pressure in the pump chamber in order to alternately open and close an inlet channel (8) and an outlet channel (9) for a medium to be pumped. According to the invention, the valves are formed by functioning valve modules (40,41) without any common components. The pre-manufactured valve modules, base modules comprising the base part and hose connections (2,3) and actuator modules comprising the actuator and the membrane are combined in order to produce said micropumps.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: August 10, 2010
    Assignee: thinXXS GmbH
    Inventor: Lutz Weber
  • 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
  • Publication number: 20100135833
    Abstract: A retainer for movably securing a valve member within a fluid bore of a pump comprises a retainer head which includes at least one peripheral groove and a retainer hub which is connected to or formed integrally with the retainer head. The valve member is movably coupled to the retainer hub, and the retainer head is movable to position the groove over a radial protrusion in the fluid bore. In this position, the retainer is secured to the pump and the valve member is accordingly movably secured within the fluid bore.
    Type: Application
    Filed: January 25, 2010
    Publication date: June 3, 2010
    Applicant: FMC Technologies, Inc.
    Inventor: Steven L. Schwegman
  • Patent number: 7635257
    Abstract: A high pressure pump draws fluid from a fluid inlet into a compression chamber through an inlet chamber. The high pressure pump has a fluid chamber that communicates with the fluid inlet via the inlet chamber. The high pressure pump includes a plunger and a cylinder. The plunger draws fluid from the inlet chamber into the compression chamber when the plunger moves in a drawing direction. The plunger is capable of pressurizing fluid in the compression chamber when the plunger moves in a pressurizing direction. The cylinder movably supports the plunger therein. When the plunger moves in the drawing direction, fluid in the inlet chamber is drawn into the compression chamber, so that fluid flows from the fluid chamber into the inlet chamber.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: December 22, 2009
    Assignee: Denso Corporation
    Inventor: Hiroshi Inoue