Including Valve Assembly, Disassembly, Or Inspection Facilitating Means Patents (Class 417/454)
  • Patent number: 10900476
    Abstract: A reciprocating compressor including a compressor frame including a drive shaft received therein, a rotary to linear motion converter coupling the drive shaft and a first end of a piston rod, a piston coupled to a second end of the piston rod, a compression cylinder in which the piston is received, an inlet valve coupled to the compression cylinder and a discharge valve coupled to the compression cylinder, a pressure casing encasing the compressor frame and the rotary to linear motion converter, a motor coupled to the drive shaft, wherein the motor is located external to the pressure casing, and a mechanical seal coupled between the drive shaft and the pressure casing.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: January 26, 2021
    Assignee: Southwest Research Institute
    Inventors: Klaus Brun, Jason C. Wilkes
  • Patent number: 10823166
    Abstract: A positive displacement pump for dispensing fluid includes a fluid body sub-assembly including a fluid body and a negating check valve. The negating check valve includes a negating body defining a dispensing opening. The fluid body and the negating body form a flow path for the fluid. The fluid is dispensed through the dispensing opening. The positive displacement pump is primed by allowing trapped air within the flow path to flow out of the dispensing opening. The negating check valve may be fully or partially attached to the fluid body. The trapped air within the flow path flows out of the dispensing opening when the negating check valve is partially attached to the fluid body.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: November 3, 2020
    Assignee: Henkel IP & Holding GmbH
    Inventors: John P. Breault, Steven J. Hemsen
  • Patent number: 10683862
    Abstract: A housing for use in high-pressure fluid applications, and in particular a structure for the fluid end of a multi-cylinder reciprocating pump used in oilfield, wherein the structure includes features such as ruled surfaces and increased sidewall thickness to improve resistance to stress applied and has an extended the service life.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 16, 2020
    Assignee: SERVA GROUP LLC
    Inventors: Bill Ladd, Tang Jun, Wang Cheng Cai
  • Patent number: 10422330
    Abstract: High pressure fuel pump includes a cylinder which is fitted in a concave portion formed in a pump housing and which defines a compression chamber of the pump and a plunger which pressurizes, by sliding against the cylinder, the fluid in the compression chamber. It is structured such that the fluid sucked into the compression chamber by reciprocating motion of the plunger is pressurized and is then discharged from the compression chamber. The cylinder is formed of a cylindrical member which has a ceiling portion and in which the compression chamber is partitionedly formed. A fuel suction path formed in the pump housing reaches the compression chamber through the cylinder and a fuel discharge path formed in the pump housing is connected to the compression chamber through the cylinder. The cylinder is pressed against the pump body by a fuel pressurizing force applied to the cylinder.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: September 24, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Shingo Tamura, Atsuji Saito, Satoshi Usui, Masahiko Hayatani
  • Patent number: 10280919
    Abstract: A new pump design is described. The pump features a casing with a continuous enclosure extending from a power end of the casing to a fluid end of the casing for housing the reciprocating assembly of the pump, which includes a crankshaft, a plurality of control rods coupled to the crankshaft, and a plurality of crossheads coupled to the control rods. A detachable lid is attached to the casing at the power end and the fluid end of the casing, and encloses the reciprocating assembly. An alignment plate oriented substantially parallel to a stroke axis of the pump maintains alignment of the crossheads.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: May 7, 2019
    Assignee: TSC MANUFACTURING AND SUPPLY, LLC
    Inventors: David Kerr, Ian Haas
  • Patent number: 9926926
    Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: March 27, 2018
    Assignee: DENSO CORPORATION
    Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
  • Patent number: 9784262
    Abstract: A fluid end (15) for a multiple reciprocating pump assembly (12) includes at least three plunger bores (61) or (91) each for receiving a reciprocating plunger (35), each plunger bore having a plunger bore axis (65) or (95). The fluid end (15) includes suction valve bores (59) or (89), each suction valve bore receiving a suction valve (41) and having a suction valve bore axis (63) or (93), and the fluid end further includes discharge valve bores (57) or (87), each discharge valve bore receiving a discharge valve (43) and having a discharge valve bore axis (63) or (93). The axes of at least one of the suction and discharge valve bores is inwardly offset in the fluid end from its respective plunger bore axis.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: October 10, 2017
    Assignee: S.P.M. Flow Control, Inc.
    Inventors: Jacob A. Bayyouk, Donald Mackenzie
  • Patent number: 9745968
    Abstract: In one aspect, a fluid end portion of a reciprocating pump assembly includes a fluid end block and an inlet manifold connected thereto. The manifold includes an opening formed therethrough and including a slot portion to facilitate the connection between the inlet manifold and the fluid end block. In another aspect, a method of connecting an inlet manifold to a fluid end block includes inserting fasteners into respective openings in the fluid end block, and effecting relative movement between the inlet manifold and the fluid end block so that the fasteners pass within respective slot portions formed through a mounting plate of the inlet manifold. In yet another aspect, a manifold is adapted to be connected to a fluid end block and includes an elongated member and a mounting plate connected thereto. The mounting plate includes openings formed therethrough, the openings including respective slot portions spaced in a parallel relation.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: August 29, 2017
    Assignee: S.P.M. FLOW CONTROL, INC.
    Inventors: Ed Kotapish, Chad Cobb
  • Patent number: 9702359
    Abstract: A new pump design is described. The pump features a casing with a continuous enclosure extending from a power end of the casing to a fluid end of the casing for housing the reciprocating assembly of the pump, which includes a crankshaft, a plurality of control rods coupled to the crankshaft, and a plurality of crossheads coupled to the control rods. A detachable lid is attached to the casing at the power end and the fluid end of the casing, and encloses the reciprocating assembly. An alignment plate oriented substantially parallel to a stroke axis of the pump maintains alignment of the crossheads.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: July 11, 2017
    Assignee: TSC Manufacturing and Supply, LLC
    Inventors: David Kerr, Ian Haas
  • Patent number: 9651033
    Abstract: A pumping unit for a machine to distribute concrete includes a pair of cylinders provided with a relative pumping piston movable linearly for a determinate travel to feed the concrete to a determinate circuit to distribute the concrete; and a hydraulic command circuit operatively connected to both the cylinders, to determine an alternate pumping movement of the relative pumping pistons. The pumping unit includes at least a sensor member operatively associated to at least one of the cylinders in order to detect point-by-point one or more data relating to the operating condition of the pumping piston during its movement for the whole travel. The data includes at least one of position, speed, stress and direction of movement of the relative piston.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: May 16, 2017
    Assignee: CIFA SPA
    Inventors: Nicola Pirri, Gennaro Paolo Bottino
  • Patent number: 9512836
    Abstract: A high-pressure fuel pump for an internal combustion engine. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. The fuel pump possesses an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: December 6, 2016
    Assignee: Cummins Inc.
    Inventors: Anthony A. Shaull, Wesley R. Thayer
  • Patent number: 9500195
    Abstract: A fluid end assembly comprising a housing, valve bodies, seals, seats, springs, and other associated parts, paired with a suction manifold that facilitates bi-directional fluid flow. The suction manifold of this invention is designed to preserve fluid energy that will ensure complete filling of the cylinder in extreme pumping conditions. The suction manifold utilizes a chamber design positioned immediately below the suction valves, eliminating all connecting ducts. Alternate embodiments of this invention include a suction manifold with an integral fluid dampeners or stabilizers.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: November 22, 2016
    Inventor: George H Blume
  • Patent number: 9285040
    Abstract: A high pressure fluid system including enhanced safety, maintenance and servicing features. The system can include a CAM assembly module, having a valve seat assembly, seal cartridge assembly and inlet manifold, that is easily installed in and removed from a frame and/discharge manifold as a single unit. A discharge manifold can isolate different pressure rated passageways of the system, and multiple rupture discs associated with the same. A discharge manifold end plate can be included to provide ease of repair of discharge outlets and to establish a plumbing system for the rupture discs. A quick coupler can facilitate connection between a plunger of the seal cartridge assembly and a cross head stub connected to a power frame. A lubrication valve assembly can provide and meter lubrication from a high pressure inlet source to a plunger and packing of the seal cartridge assembly.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: March 15, 2016
    Assignee: PSI Pressure Systems Corp.
    Inventors: Jamie A. Forrest, Todd A. Shawver
  • Patent number: 9261061
    Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: February 16, 2016
    Assignee: DENSO CORPORATION
    Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
  • Patent number: 9261085
    Abstract: A pump, which generally includes a pump housing and a pump piston. The pump housing defines a central longitudinal bore, a transverse bore communicating with the central bore for conveying a liquid through the pump housing, a liquid reservoir communicating with the central bore and the transverse bore for retaining an amount of the liquid conveyed through the transverse bore and a pressure relief slot extending from the transverse bore to the liquid reservoir. The pump piston is axially and rotatably slidable within the central longitudinal bore for pumping the liquid through the transverse bore.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: February 16, 2016
    Assignee: FLUID METERING, INC.
    Inventors: Joseph Ervin Middleton, David Lionel Rawlings
  • Patent number: 9188122
    Abstract: An assembly and method for engaging fluid pumps can include a seat assembly having a body with a central bore, a suction face, a discharge face, fluid openings in the body, a tapered portion with fluid exits, and valve seats. The assembly can include a suction valve with a guide and valve bore engaged within the central bore, a tapered surface, an outer spring stop, and a spring guide. When the assembly is in a closed position the tapered surface can be engaged with the valve seats, allowing fluid to flow through the valve bore and the central bore. When the assembly is in an opened position the fluid openings can receive and flow the fluid in a laminar flow to the fluid exits to push the suction valve away from the suction face and create a venturi effect with the fluid.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: November 17, 2015
    Inventor: Glen E. Reed
  • Patent number: 9140245
    Abstract: An electromagnetic pump includes a cylinder with a stepped inner diameter with first and second inner diameters. A piston inside the cylinder, with a stepped outer diameter including first and second outer diameters slidable on the respective inner diameters, defines first and second fluid chambers. Reciprocal movement of the piston produces a greater change in volume in the first chamber than the second chamber. An electromagnetic portion moves the piston to decrease the volume of the first chamber and increase the volume of the second chamber. A biasing member moves the piston to increase the volume of the first chamber and decrease the volume of the second chamber. A first valve allows fluid to flow to the first chamber and prohibits reverse flow. A second valve embedded in the piston allows fluid to flow from the first chamber to the second chamber and prohibits reverse flow.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: September 22, 2015
    Assignee: AISIN AW CO., LTD.
    Inventors: Masaya Nakai, Kazuhiko Kato
  • Publication number: 20150118082
    Abstract: A pump includes a check valve cartridge removably mounted to the pump. The cartridge includes an inlet check valve and a discharge check valve. A connector mounts intermediate the inlet check valve and the discharge check valve. The inlet and discharge check valves each have a valve ball movable between an open position and a closed position, a valve seat engaging the valve member in the closed position, an inlet and an outlet.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventor: Richard D. HEMBREE
  • Patent number: 8985968
    Abstract: A cylinder is configured into a bottomed tubular form and includes an inner peripheral wall, an inner bottom wall, an outer peripheral wall and an intake hole and a discharge hole. The inner peripheral wall slidably guides the plunger. The intake hole and the discharge hole communicate between the inner peripheral wall and the outer peripheral wall. A pump housing includes a cylinder receiving hole that includes an inner peripheral wall, into which the cylinder is inserted. A pressurizing chamber is formed by the inner peripheral wall and the inner bottom wall of the cylinder and a distal end outer wall of the plunger.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: March 24, 2015
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Teppei Matsumoto, Masatoshi Kuroyanagi, Osamu Hishinuma
  • Patent number: 8944780
    Abstract: A system for delivery of medical fluid to a patient which includes a pump system and a drive system. The pump system has at least three chambers, where each chamber includes an inlet for fluid intake and an outlet for fluid expulsion, a common outlet channel in fluid communication with the outlet of each chamber, and at least three pistons, where each piston is slidably disposed within one of the chambers. The drive system includes a cam shaft having at least three cam lobes, each having a profile, and at least three cam lobe followers, each in operative connection with one of the cam lobes and adapted to be placed in operative connection with a respective piston. The profile of each of the cam lobes is adapted to provide a transient increase or spike in calculated theoretical output of the pump system to reduce periodic variation in measured output thereof.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: February 3, 2015
    Assignee: Bayer Medical Care Inc.
    Inventor: David M. Reilly
  • Patent number: 8915722
    Abstract: Tapered valve guide and spring retainer assemblies are described for use in plunger pump housings that incorporate corresponding outwardly flared discharge and suction bores, as well as structural features for stress-relief. Plunger pumps so constructed are relatively resistant to fatigue failure because of stress reductions, and they may incorporate essentially any style of valves, including top and lower stem-guided valves and crow-foot-guided valves, in easily-maintained configurations. Besides forming a part of valve guide and spring retainer assemblies, side spacers may be shaped and dimensioned to improve volumetric efficiency of the pumps in which they are used. The present disclosure provides, for the first time, the use of tungsten carbide valve seats, which significantly increase durability and service life of a pump, especially when abrasive fluids are being pumped, as in various oilfield operations.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: December 23, 2014
    Inventor: George H. Blume
  • Patent number: 8905732
    Abstract: In usual hydraulic pumps, a separate assembly opening is provided for every valve of the hydraulic pump. This design causes sealing problems. It is proposed, that the fluid inlet valve and the fluid outlet valve can be assembled through a common assembly access port. Further, the fluid inlet valve and the fluid outlet valve can be arranged around a common cavity, or even within the same cavity, via the common assembly access port in the fluid working machine's body.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: December 9, 2014
    Assignee: Danfoss Power Solutions APS
    Inventors: Onno Kuttler, Uwe Stein
  • Publication number: 20140322052
    Abstract: A weft insertion pump for a water jet loom includes a pump housing, a water storage chamber forming cylinder, a plunger, discharge and suction ports, a water storage chamber, a discharge-side check valve, a suction-side check valve and a stop member. The suction-side check valve includes a valve body, a valve seat member having a valve surface and a stop member. The stop member is formed with a plurality of guide walls which are spaced at an angular interval and configured to slidably guide the valve body in an axial direction of the stop member. Communication passages are formed in a circumferential direction of the stop member between any two adjacent guide walls. An annular groove is formed in the valve seat member so as to surround and be continuously connected to the valve surface for providing fluid communication between the communication passages.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 30, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Haruo SHIMAZAKI, Yasushi YAMAUCHI
  • Patent number: 8747083
    Abstract: An air compressor includes a cylinder housing, an outlet receptacle disposed on the cylinder housing, and a partition formed between the cylinder housing and the outlet receptacle and having an air passage formed in the partition, a piston slidably received in the cylinder housing and coupled to a motor for moving relative to the cylinder housing in a reciprocating action in order to generate a pressurized air, and a spring-biased check valve engaged with the partition for selectively blocking the air passage of the partition, the outlet receptacle includes an inner diameter “D2” no less than an inner diameter “D1” of the cylinder housing for allowing the pressurized air to easily flow into the outlet receptacle and for allowing the piston to be moved in a greater moving speed.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: June 10, 2014
    Inventor: Wen San Chou
  • Patent number: 8579610
    Abstract: A downhole pump has a barrel and a plunger. The barrel has a first one-way valve and the plunger has a second one-way valve. The plunger is of the box end type. The pump prevents or minimizes gas lock by achieving high compression in the compression chamber between the two valves. The second valve is located close to the bottom end of the plunger. In the second valve, the valve seat is in contact with the seat plug, which seat plug has a seal. Alternatively, the valve seat is incorporated into the seat plug, which seat plug also has a seal. The plunger lacks reliefs at the bottom end and thereby achieves tight tolerances with the barrel, further contributing to high compression.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: November 12, 2013
    Assignee: Harbison-Fischer, Inc.
    Inventors: John L. Perkins, Jr., Michael Wayne Stowe, Benny J. Williams
  • Patent number: 8539922
    Abstract: A hand operated primer pump for small marine or other engines generally spark ignition engines used on stern drive boats that prevents transfer of hydrocarbons into the atmosphere. The primer generally mimics and replaces prior art rubber primer bulbs in general shape and possibly color, although it can be made in any shape or color. It generally contains a pump that delivers a precise measured amount of fuel with each stroke of the actuator. The primer can have an ergonomically designed actuator that creates the farthest distance from a fulcrum point for maximum leverage and hence, maximum ease of use. The primer is generally designed with a continuous molded fuel path to seal any source of hydrocarbon leakage as well as being made from materials that prevent transfer of hydrocarbons to the atmosphere.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: September 24, 2013
    Assignee: Bluskies International, Inc.
    Inventors: Christopher Brown, Marvin Peplow
  • Patent number: 8485789
    Abstract: A system and method for modulating capacity of a scroll compressor having a motor includes determining a target capacity of the scroll compressor, operating the motor at a first speed when the target capacity is within a first predetermined capacity range and at a second speed when the target capacity is within a second predetermined capacity range, determining a pulse width modulation cyclic ratio based on the target capacity and the first or second speed, and periodically separating intermeshing scroll members of the compressor according to the pulse width modulation cyclic ratio to modulate the capacity of the scroll compressor.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: July 16, 2013
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Yumin Gu, Xilai Yang, Simon Wang
  • Patent number: 8465268
    Abstract: A modular fluid end for a multiplex plunger pump, each module machined from a single-piece steel forging with a plunger bore intersected by a linear suction/discharge bore and pumped fluid is discharged straight out through a top of the module into a discharge manifold made up using 1502 frac iron components. A compression clamp applies a crush load to opposed sides of the modules to extend service life.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: June 18, 2013
    Assignee: Phoinix Global LLC
    Inventors: Winston Kirk Baxter, Scott Allen Reeves
  • Patent number: 8444398
    Abstract: A pump has a pump fluid end and a manifold that is detachable from the fluid end. A device is attachable to the pump, and has a manifold support beam portion adapted to affix to the pump fluid end at a location adjacent a manifold mating surface of the pump fluid end and extend outward from the pump fluid end. A support is provided on the manifold support beam portion that, when the manifold support beam portion is affixed to the fluid end of the pump, engages the manifold detached from the fluid end and supports the weight of the manifold.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: May 21, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John Dexter Brunet, Justin Lee Hurst
  • Patent number: 8430647
    Abstract: A compressor safety valve releases an abnormal pressure to the outside through a discharge port when the pressure in a compressor has increased abnormally. The valve comprises a cap having an anchoring part integrally formed therewith and mounted on a head portion of a valve main body in an attachable and detachable manner. The valve further comprising an elastic body interposingly mounted between the cap and the head portion of the valve main body in a compressed state and in close contact with the head portion of the valve main body. The elastic body is interposed so as to cover the entirety of a peripheral surface of the discharge port and the cap is anchored to the head portion of the valve main body by the elastic repulsive force of the elastic body, so that the discharge port is closed by the elastic body and the cap.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: April 30, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yuki Akaya, Kazuhide Watanabe
  • 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: 8393142
    Abstract: A reductant dosing manifold is disclosed. The reductant dosing manifold may have a housing with a pump interface configured to directly connect the reductant dosing manifold to a reductant pump, and a reductant supply passage in fluid communication with the pump interface. The housing may also have a reductant outlet port, and a pressurized reductant passage connecting the pump interface to the reductant outlet port.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: March 12, 2013
    Assignee: Caterpillar Inc.
    Inventors: Shashank Mupparapu, Raymond Upano Isada, Stephan D. Roozenboom, Michael R. Errera, Bryce L. Tiller
  • Patent number: 8393260
    Abstract: A valve cap for sealing an aperture in a pump; a plugging assembly for a valve cap to seal at an aperture in a pump; a docking unit for use with a plugging assembly for sealing an aperture in a pump; and a method of sealing an aperture in a pump. A valve cap (10) comprises a valve plug (16) including, a first engaging means (40); a compression unit (20) including a plurality of springs (56) to apply a compressive load upon the plug and second engaging means (62, 64); a docking unit (24) for landing on the compression unit, including one or more pistons (92) to apply a compressive load upon said springs and third engaging means (74, 76, 78) to lock said plug to said compression unit and seal said plug against said aperture.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: March 12, 2013
    Assignee: Spicket Vlaves and Pumps Limited
    Inventors: George Coulter Kennedy, Guillaume Sourdois
  • Patent number: 8382458
    Abstract: A high-pressure fuel pump is comprises of: a plunger which slidably fits to a cylinder and reciprocates for pressurizing and discharging a fuel taken in a pressurizing chamber; an inlet valve device for taking in a fuel into the pressurizing chamber; an outlet valve device for discharging the pressurized fuel from the pressurizing chamber; and a communicating pass which comprises a hole or a groove formed in the cylinder, and communicates between a pressurized fuel area and a gap between the cylinder and the plunger.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: February 26, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Minoru Hashida, Hiroyuki Yamada, Junichi Shimada, Toru Onose, Satoshi Usui, Masami Abe, Tohru Himoto
  • Patent number: 8365754
    Abstract: A valve cover assembly for a pump. In an embodiment, the valve cover assembly comprises a first cylindrical member having a central axis and a first throughbore. In addition, the valve cover assembly comprises a second cylindrical member coaxially disposed within the first throughbore and rotatable relative to the first cylindrical member about the central axis between a first position and a second position. In the first position, the second cylindrical member is axially translatable relative to the first cylindrical member. In the second position, the second cylindrical member is axially fixed relative to the first cylindrical member.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: February 5, 2013
    Assignee: National Oilwell Varco, L.P.
    Inventors: Andrew Dale Riley, Randall Ferrain Weaver
  • Patent number: 8317498
    Abstract: A pump assembly with valve-seat interface architecture configured to extend the life of pump components and the assembly. A valve of the pump assembly is equipped with a conformable valve insert that is configured with a circumferential component having the capacity to reduce the radial strain of its own deformation upon its striking of a valve seat at the interface within the pump assembly. The circumferential component may include a concave surface about the insert, a rounded abutment at the strike surface of the insert, or a core mechanism within the insert that is of greater energy absorbing character than surrounding material of the insert. Additionally, the valve seat itself may be configured for more even wear over time and equipped with a conformable seat insert to reduce wear on the valve insert.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: November 27, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Philippe Gambier, Toshimichi Wago, Jean-Louis Pessin
  • Publication number: 20120288387
    Abstract: A reciprocating pump housing having a suction valve bore, a discharge valve bore, a plunger bore and an access bore. The suction and discharge bores are disposed on a first centerline and the plunger and access bores are disposed along a second centerline perpendicular to the first centerline. The pump housing includes a first annular transition zone extending between an intersection of the plunger bore and suction bore and an intersection of the access bore and the discharge valve bore. The housing also includes a second annular transition zone extending between an intersection of the suction valve bore and access bore and an intersection of the plunger bore and discharge valve bore. The first and second transition zones intersect along a third centerline perpendicular to the intersection of first and second centerlines, each including a curvature along their lengths to blend the intersections between the bores and reduce tensile stresses.
    Type: Application
    Filed: April 20, 2012
    Publication date: November 15, 2012
    Applicant: S.P.M. FLOW CONTROL, INC.
    Inventors: Wesley D. Freed, Mark C. Dille, Scott Skurdalsvold
  • Patent number: 8277206
    Abstract: A pressure enclosure includes a first component having an opening, a second component coupled to the first component in a position over the opening, a third component positioned between the first and second components and covering the opening, and a load chamber defined by a space between the second and third components and configured such that pressure in the load chamber biases the third component against the first component to seal the opening. The pressure enclosure may be a cylinder of a pump for pressurizing fluid or gas, with the first component a cylinder body, the second component an end cap and the third component a valve body, with the load chamber biasing the valve body against the cylinder body.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: October 2, 2012
    Assignee: Flow International Corporatioin
    Inventors: Chidambaram Raghavan, Kraig T. Kostohris, Katherine M. Madden, Shawn M. Callahan, Sigurd C. Mordre, Mohamed A. Hashish, Olivier L. Tremoulet, Jr.
  • Patent number: 8272856
    Abstract: The high-pressure pump has at least one pump element which has a pump plunger which is driven in a reciprocating motion and defines a pump working space into which fuel is drawn in from a fuel feed via an inlet valve during the suction stroke of the pump plunger and from which fuel is displaced into a high-pressure region via an outlet valve during the delivery stroke of the pump plunger. The inlet valve and/or the outlet valve has a valve member at least approximately in the shape of a ball which acts as a sealing surface with a valve seat arranged in a valve housing. The valve member, in its open state, is lifted with its sealing surface from the valve seat, a first cross section of flow is cleared between the valve member and the valve seat, and downstream of the first cross section of flow, a second cross section of flow is formed between the valve member and the valve housing.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: September 25, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Walter Fuchs, Andreas Dutt, Jochen Aleker, Arnold Gente, Angelo Santamari
  • Patent number: 8221093
    Abstract: A beverage system includes a pump that draws a set amount of a flavored concentrate into a mixing chamber for mixing with water to form a beverage. A locking ring attaches an adapter plate to a pump head. When the locking ring is in a locked position, a magnet of the locking ring is detected by a reed switch. If the locking ring rotates from the locked position, the reed switch does not detect the magnet, indicating that the locking ring, and therefore the pump head, is incorrectly or not completely installed. The controller then stops operation of the pump.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: July 17, 2012
    Assignee: Carrier Commerical Refrigeration, Inc.
    Inventors: James J. Minard, Mark E. Bush
  • Publication number: 20120177517
    Abstract: A valve cap for sealing an aperture in a pump; a plugging assembly for a valve cap to seal at an aperture in a pump; a docking unit for use with a plugging assembly for sealing an aperture in a pump; and a method of sealing an aperture in a pump. A valve cap (10) comprises a valve plug (16) including, a first engaging means (40); a compression unit (20) including a plurality of springs (56) to apply a compressive load upon the plug and second engaging means (62, 64); a docking unit (24) for landing on the compression unit, including one or more pistons (92) to apply a compressive load upon said springs and third engaging means (74, 76, 78) to lock said plug to said compression unit and seal said plug against said aperture.
    Type: Application
    Filed: December 12, 2011
    Publication date: July 12, 2012
    Applicant: SPICKET VALVES AND PUMPS LIMITED
    Inventors: George Coulter Kennedy, Guillaume Sourdois
  • Patent number: 8215936
    Abstract: In screw compressors for extremely high discharge pressures, the geometrical centers of all coaxial holes or housing bores are all located in one single housing section on the male rotor side at a certain first straight line and the geometrical centers of all coaxial holes or housing bores are all located in one single housing section on the female rotor side at a certain second straight line. The diameter of all coaxial holes in the housing on the male rotor side, and the diameters of all coaxial holes in the housing on the female rotor side, decrease from the open to the closed end of the housing section. Based on this construction, the bearings and the components adjacent to the bearings are guided at their periphery in one single housing section so that there will be no coaxial deviations caused by assembly and no coaxial deviations in long term operation.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: July 10, 2012
    Inventors: Dieter Mosemann, Ottomar Neuwirth
  • Patent number: 8105055
    Abstract: A suction manifold mounting for a fluid end of a high pressure pump having a frame assembly. The fluid end has a body forging with a detachable suction manifold plate. The plate is pivotally attached at opposed ends to a pair of swivel arms through a cooperating pair of yoke limbs. The swivel arms are rigidly affixed to the frame member. When attachment bolts are removed from the manifold plate, the plate may pivot from a first closed position wherein the mounting holes in the plate are aligned with mounting holes in the forging to a second open position.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: January 31, 2012
    Assignee: Fiac Tech Services, LLC
    Inventor: Tony M. Small
  • Patent number: 8087911
    Abstract: A pump of an electronically controlled brake system. The pump includes a bore formed in a modulator block and connected with a suction port and a discharge port, a piston installed in the bore in a reciprocating movable manner and defining an inlet path therein, an inlet valve to open or close an exit-side end of the inlet path according to a position of the piston, and an outlet valve provided at one side of the bore, operations of the inlet and outlet valves being contrary to each other. The outlet valve includes a valve seat, a sleeve to surround the valve seat, an outlet ball interposed between the sleeve and the valve seat and used to open or close a path defined in the valve seat, and a valve cap provided at one side of the sleeve to isolate an interior from an exterior of the bore. One or more of the valve sheet, sleeve, and valve cap are formed by press-forming, to achieve improved assembly efficiency and reduced manufacturing costs.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: January 3, 2012
    Assignee: Mando Corporation
    Inventor: Yong Kap Kim
  • Patent number: 8075286
    Abstract: A double-acting compressor to compress liquid or gaseous fluids includes a cylinder having a piston head that reciprocates between opposite ends of the cylinder; a fluid discharge and suction passages defined in at least one of the opposite ends of the cylinder; a fluid suction and compression chamber connected to each end of the cylinder; fluid suction and fluid discharge valves connected to each one of the opposite ends of the cylinder; and pulling device connected to each end of said piston head. The pulling device extends along the cylinder and project out of the ends of the cylinder. The pulling device includes at least one flexible string having fastening means for the manual operation of the compressor.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: December 13, 2011
    Inventor: Ernesto Guarnieri
  • 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: 8070462
    Abstract: A high-pressure fuel pump is disclosed that includes a pump housing with a suction port hole for defining a suction port, a pressure chamber for sucking fuel from the suction port, and a delivery port hole for defining a delivery port delivering fuel pressurized in the pressure chamber. The fuel pump also includes a plunger for pressurizing fuel sucked in the pressure chamber due to reciprocal motion of the plunger. Furthermore, the fuel pump includes a relief valve provided in the suction port hole, wherein the relief valve opens when a delivery pressure of the fuel delivered from the delivery port exceeds a predetermined pressure, thereby reducing the delivery pressure of the fuel.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: December 6, 2011
    Assignee: Denso Corporation
    Inventor: Hiroshi Inoue
  • Patent number: 8028438
    Abstract: A moisture control system generally comprising a collector element is configured to be incorporated into a structure to control moisture condensation on the interior and exterior of the structure. The collector element encourages condensation on its surface. The control system includes a channel in fluid communication with the collector element to direct the condensed liquid away from the control element.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: October 4, 2011
    Assignee: Aqualizer, LLC
    Inventor: William Scott Pedtke
  • Patent number: 7993115
    Abstract: A pump including a bore formed in a modulator block and connected with a suction port and a discharge port is provided. The pump includes a piston installed in the bore in a reciprocating movable manner and defining an inlet path therein, an inlet valve to open or close an exit-side end of the inlet path according to a position of the piston, and an outlet valve provided at one side of the bore, operations of the inlet and outlet valves being contrary to each other. The outlet valve includes a valve seat, a sleeve to surround the valve seat, an outlet ball interposed between the sleeve and the valve seat and used to open or close a path defined in the valve seat, and a valve cap provided at one side of the sleeve to isolate an interior from an exterior of the bore.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: August 9, 2011
    Assignee: Mando Corporation
    Inventor: Yong Kap Kim