Preceding Diverse Pump Patents (Class 417/203)
  • Patent number: 10851778
    Abstract: A casing of a housing of a fuel pump has a bearing surface that rotatably supports an inner gear in an axial direction from a motor side while a plain bearing extends through the bearing surface. The plain bearing includes: an inner-peripheral-side step that is stepped by increasing an inner diameter of the plain bearing on a counter-motor side of the inner-peripheral-side step in the axial direction; and an outer-peripheral-side step that is stepped by increasing an outer diameter of the plain bearing on the motor side of the outer-peripheral-side step at a position that is on the motor side of the bearing surface in the axial direction.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: December 1, 2020
    Assignee: DENSO CORPORATION
    Inventors: Daiji Furuhashi, Hiromi Sakai, Tetsuo Hayakawa
  • Patent number: 10852040
    Abstract: Disclosed is a linear expander includes: a body portion including a suction hole through which a fluid having a first pressure flows in, a discharge hole through which the fluid flows out with a second pressure that is lower than the first pressure, and first and second holes connecting an expansion space formed between the suction hole and the discharge hole, a first linear generating portion and a second linear generating portion respectively causing pistons provided in the first hole and the second hole to linearly reciprocate to generate an induced electromotive force with an expansion force generated when the fluid having the first pressure expands to the fluid having the second pressure, a suction valve opening and closing the suction hole, and a discharge valve and closing the discharge hole.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: December 1, 2020
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Junseok Ko, Hyo-Bong Kim, Seong-Je Park, Han-Kil Yeom, Yong-Ju Hong, Sehwan In
  • Patent number: 10794185
    Abstract: A cylinder block includes: a plurality of cylinder bores including respective openings formed on a piston insertion end surface of the cylinder block, pistons being inserted in the respective cylinder bores and being configured to reciprocate and slide in the respective cylinder bores when the cylinder block rotates; and a cooling portion, wherein the cooling portion includes a plurality of cooling holes each formed between the adjacent cylinder bores and extending from the piston insertion end surface in an axial direction of the cylinder block.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: October 6, 2020
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Koichi Komada, Yuichiro Kuroda, Akihito Mitsuhata, Takaaki Sato
  • Patent number: 10690126
    Abstract: The present invention is directed to a dual engine-compressor system having a crankcase enclosing a crankshaft and having engine cylinder housings and compressor cylinder housings linearly disposed on opposite sides of the crankcase. Combustion pistons are reciprocatingly disposed in the engine cylinder housings and defines alternating combustion chambers on opposite sides of the pistons. Compressor pistons are reciprocatingly disposed in the compressor housings and define alternating low and high pressure compressor chambers on opposite sides of the compressor pistons. The compressor pistons underdo a 4-cycle process to drawn in, re-distribute, and then compress fluid. The compressor cylinder and piston has a series of one-way intakes and reed valves to selectively draw or push fluid in response to movement of the compressor piston.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: June 23, 2020
    Assignee: KISS-Engineering Inc.
    Inventor: Christopher L. Gamble
  • Patent number: 10690052
    Abstract: A turbocharger assembly is provided which prevents liquid moisture 82 from damaging an air fuel ratio sensor affixed to the exhaust pipe. The turbocharger assembly includes a turbine housing, a turbine wheel, a volute defined in the turbine housing, and an upwardly extending exhaust pipe. The turbine housing may be affixed to a center turbocharger housing member. The turbine housing includes an anterior region and a posterior region having the volute. The turbine wheel may be disposed in the turbine housing. A liquid moisture 82 pathway may be defined in the turbine housing and is configured to provide liquid fluid communication from the anterior region toward the volute.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: June 23, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jessica L Krajenke, Ronald M Tkac, Vincent J Tylutki
  • Patent number: 10677058
    Abstract: The invention provides a fluid working machine comprising: a crankshaft (2) which is rotatable about an axis of rotation (3); adjacent first and second groups (5, 6, 8, 10) of valve cylinder devices (13) spaced from each other about the axis of rotation (3), one or each of the first and second groups (5, 6, 8, 10) of valve cylinder devices having first, second and third valve cylinder devices (13) arranged about and extending outwards with respect to the crankshaft (2), the first and third valve cylinder devices being axially offset from each other, the second valve cylinder device being axially offset from the first and third valve cylinder devices and the second valve cylinder device being offset from the first and third valve cylinder devices about the axis of rotation, wherein the second valve cylinder device has an axial extent which overlaps with the axial extent of one, or the axial extents of both, of the first and third valve cylinder devices.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: June 9, 2020
    Assignees: Danfoss Power Solutions GMBH & Co. OHG, Artemis Intelligent Power Ltd.
    Inventors: Alexis Dole, Uwe Bernhard Pascal Stein, Stephen Michael Laird
  • Patent number: 10662961
    Abstract: A pump is provided which includes a rotating element, and a volute housing having a fluid inlet and a fluid outlet. In operational state, the rotating element rotates, drawing fluid through the fluid inlet of the volute housing and expelling the fluid at a higher pressure through the fluid outlet. Further, the pump includes a bypass mechanism integrated, at least in part, within the volute housing and exposing in nonoperational state of the pump, a bypass path through, at least in part, the volute housing that allows the fluid to pass from the fluid inlet to the fluid outlet of the pump.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: May 26, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Levi A. Campbell, Francis R. Krug, Jr., Milnes David, Dustin Demetriou, Michael J. Ellsworth, Jr., Brian Werneke
  • Patent number: 10605079
    Abstract: The invention provides a fluid working machine comprising: a crankshaft (2) which is rotatable about an axis of rotation (3); adjacent first and second groups (5, 6, 8, 10) of valve cylinder devices (13) spaced from each other about the axis of rotation (3), one or each of the first and second groups (5, 6, 8, 10) of valve cylinder devices having first, second and third valve cylinder devices (13) arranged about and extending outwards with respect to the crankshaft (2), the first and third valve cylinder devices being axially offset from each other, the second valve cylinder device being axially offset from the first and third valve cylinder devices and the second valve cylinder device being offset from the first and third valve cylinder devices about the axis of rotation, wherein the second valve cylinder device has an axial extent which overlaps with the axial extent of one, or the axial extents of both, of the first and third valve cylinder devices.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: March 31, 2020
    Assignees: Danfoss Power Solutions GMBH & Co. OHG, Artemis Intelligent Power Ltd.
    Inventors: Alexis Dole, Uwe Bernhard Pascal Stein, Stephen Michael Laird
  • Patent number: 10544788
    Abstract: A pump includes a housing, a drive shaft, a centrifugal pump portion having an impeller, and a gear pump portion having first and second gears. The impeller and one of the first and second gears are mounted to the drive shaft to drive the centrifugal pump portion and the gear pump portion at the same rotational speed. The gear pump can be a crescent internal gear (CIG) pump. The drive shaft can be rotated by a magnetic drive. The drive shaft can include a longitudinal bore in fluid communication with a cavity in the magnetic drive and with a discharge of the centrifugal pump portion to circulate working fluid through the magnetic drive to cool the drive. An impeller can be coupled to an inlet of the centrifugal pump portion.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: January 28, 2020
    Assignee: CIRCOR PUMPS NORTH AMERICA, LLC
    Inventors: Patrick Wilson Duncan, Philip Taylor Alexander, Charles Hinckley
  • Patent number: 10502217
    Abstract: A compressor including a gear system configured to be driven by a drive unit, a plurality of compression stages coupled to the gear system, wherein the plurality of compression stages includes at least one centrifugal compression stage and at least one positive displacement compression stage, is provided. Furthermore, an associated method is also provided.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: December 10, 2019
    Assignee: ATLAS COPCO COMPTEC, LLC
    Inventors: Michael Andrews, Todd Steven Abbot Gibbs
  • Patent number: 9951763
    Abstract: A multistage compressor includes a first compression stage and a second compression stage connected in series with the first compression stage that receives and further compresses gas from the first stage. A first cooling element is connected between the first compression stage and the second compression stage. A second cooling element is connected to a discharge of the second compression stage. The multistage compressor further includes a cooling unit for providing cooling airflow to the first and second cooling elements. The cooling unit includes a fan and a first temperature sensor that determines a temperature of gas discharged from the first cooling element. The cooling unit is configured to increase or decrease a fan speed based on a temperature determined by the first temperature sensor. A method of controlling fan speed of a cooling fan of a compressor is also provided.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: April 24, 2018
    Assignee: Westinghouse Air Brake Technologies Corporation
    Inventor: Jeffrey Hritz
  • Patent number: 9909498
    Abstract: A system for supplying a turbomachine with fluid, the supply system including a low-pressure pumping unit intended to increase the pressure of the fluid flowing toward a downstream circuit. The downstream circuit divides at an inlet node, situated between the low-pressure pumping unit and the high-pressure volumetric pump, into a circuit supplying an injection system and a variable geometries supply circuit. The circuit supplying the injection system includes a high-pressure volumetric pump. The variable geometries supply circuit is configured to convey the fluid toward variable geometry from the inlet node to an outlet node connecting the variable geometries supply circuit to the upstream circuit between two pumps of the low-pressure pumping unit.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: March 6, 2018
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventor: Sebastien Chalaud
  • Patent number: 9879662
    Abstract: A pump assembly and methods of use and conversion including a sealed housing, at least one in-tank, not sealed pump contained in the sealed housing, an outlet check valve inside each pump, and an over pressure relief passage formed around the pumps in the sealed housing. The pump assembly may also include a common fuel inlet, a common fuel outlet; at least two of the pumps, a compact design, a mounting bracket, a sealed electrical inlet, a pre filter, a post filter, a pressure regulator, a returnless fuel supply, a pressure regulator, a return line.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: January 30, 2018
    Assignee: Holley Performance Products, Inc.
    Inventors: Shane Ray Weckerly, Larry Joe Tipton
  • Patent number: 9752575
    Abstract: A two stage pump (2?, 4?), where the high pressure stage (4?) is a gear pump (11, 12), comprises a driving of the other stage (2?) by a support shaft (74), mounted in the driven pinion (12), the shaft (74) being driven by the drive shaft (21), by means of a pair of toothed wheels (77, 79) adjacent to the rest of the stage (4?), which can allow different rotation speeds between the two stages (2?, 4?). The support shaft (74) may be supported by stops and hydrodynamic bearings, directly integrated and lubricated in the driven pinion, which make the design lighter and more compact. The shaft (74) and the toothed wheels (77, 79) ingeniously transmit the loads from the stage (2?) to the stage (4?) in such a way as to cancel out the usual hydraulic loads, stemming from pressure, and mechanical, forces stemming from rotational drivings on the driven pinion (12).
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: September 5, 2017
    Assignee: SNECMA
    Inventor: Philippe Vertenoeuil
  • Patent number: 9707493
    Abstract: In a cold trap provided between a vacuum chamber and a vacuum pump for the vacuum chamber, a cold panel is located in an exhaust passage from an exhaust port of the vacuum chamber to an intake port of the vacuum pump. A cold panel chamber includes an entrance that connects the exhaust passage to the exhaust port of the vacuum chamber, and an exit that connects the exhaust passage to the intake port of the vacuum pump. The exit is provided so as to be eccentric with respect to the entrance.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: July 18, 2017
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Takahiro Yatsu
  • Patent number: 9482225
    Abstract: A pumping apparatus includes a gear pump in fluid communication with a boost pump. The gear pump includes a pump housing, a first gear, and a second gear. The first and second gear have gear teeth and trunnions on opposite sides thereof, and are disposed in the pump housing. The gear teeth of the first and second gear are meshed in a mesh region. An inlet cavity is defined adjacent to the first and second gear, on one side of the mesh region. A pump outlet is defined on an opposite side of the mesh region from the inlet cavity. A bearing is configured to support at least one trunnion of the first gear and/or the second gear. A bearing interface is defined between the bearing and the at least one trunnion. A flow path is defined between the bearing interface and the inlet cavity.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: November 1, 2016
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Steven Alan Lewis, David Lawrence
  • Patent number: 9476416
    Abstract: The air compressor contains a casing member, a driving member, and a cylinder member. The casing member has a first accommodation section, a second accommodation section, and a connection section connecting the first and second accommodation sections. The first accommodation section has a number of first inlets and first outlets. The driving member is located between the first and second accommodation sections, and is adjacent to the first outlets. The cylinder member is located both in the second accommodation section and the connection section, and is adjacent to the second outlets. The outside cool air is drawn into the casing member through the first inlets. A portion of the drawn air is released through the first outlets, forming a first flow path for cooling down the driving member. Another portion is released through the second outlets, forming a second flow path for cooling down the cylinder member.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: October 25, 2016
    Inventor: Chi-Wen Chen
  • Patent number: 9347300
    Abstract: A method to extract oil for a pool of oil in the ground utilizes an interconnected series of rotating helical blades extending from the surface of the ground through a canted bore to the pool of oil. The blades can be staggered and interconnected with a gear arrangement that moves oil from pool to pool and up to the surface of the ground.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: May 24, 2016
    Inventor: Michael D Anter
  • Patent number: 9341171
    Abstract: A gas compression system includes at least one first compressor provided with at least one first cylinder and one second cylinder that are combined together such that a gas to be compressed, which is taken into the first cylinder at an intake pressure, is compressed by the intake of an engine gas to the second cylinder. The system further includes a pressure checking device to check the pressure of the engine gas during the feeding thereof into the second cylinder. The pressure checking device includes a pressure detector for measuring the pressure of the gas to be compressed during the intake thereof to the first cylinder; and a regulator for adjusting the flow rate of the engine gas in the second cylinder such that the pressure of the gas to be compressed is constant during the intake thereof to the first cylinder.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: May 17, 2016
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Yannick Fourneron, Eric Pinton
  • Patent number: 8784072
    Abstract: An apparatus is provided for compressing a loose solid feedstock. The apparatus includes a two stage compressor. The first compression stage is a screw compressor. The second compressor stage is a reciprocating compressor. The reciprocating compressor operates co-axially with, and receives its feed from, the screw compressor. A choke cone maintains pressure in the outfeed from the compressor stages. The reciprocating compressor, the screw compressor, and the choke cone are all adjustable in real time to control the compression of the feedstock according to a pre-programmed schedule that need not have equal compression and retraction strokes. The operation of the screw compressor may be advanced or eased off depending on the motion of the reciprocating compressor. The operation of the choke cone may be actively controlled to obtain a coordination with the compressor stages.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: July 22, 2014
    Assignee: Mascoma Canada Inc.
    Inventor: Murray J. Burke
  • Patent number: 8764413
    Abstract: A differentially pumped vacuum system includes first, second and third chambers, and a pumping arrangement for evacuating the chambers. The pumping arrangement includes a compound pump having a first inlet connected to an outlet from the first chamber, a second inlet connected to an outlet from the second chamber, a first pumping section and a second pumping section downstream from the first pumping section, the sections being arranged such that fluid entering the compound pump from the first inlet passes through the first and second pumping sections and fluid entering the compound pump from the second inlet passes through, of said sections, only the second section. The pumping arrangement further includes a booster pump connected to an outlet from the third chamber, and a backing pump connected to the exhaust from the booster pump. Fluid exhaust from the compound pump can be conveyed to either the booster pump or the backing pump as required.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: July 1, 2014
    Assignee: Edwards Limited
    Inventor: Ian David Stones
  • Patent number: 8727751
    Abstract: A vacuum pumping arrangement comprises a turbomolecular pumping mechanism and a molecular drag pumping mechanism connected in series. A rotor of the molecular drag pumping mechanism is supported by the rotor blades of the turbomolecular pumping mechanism.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: May 20, 2014
    Assignee: Edwards Limited
    Inventor: Nigel Paul Schofield
  • Patent number: 8408879
    Abstract: A fluid processing device for processing a multiphase fluid stream including a mixture of at least a gas and a liquid is disclosed. The fluid processing device may include at least one separator configured to separate the fluid stream into a liquid portion and a gaseous portion and deposit the liquid portion into a liquid reservoir. The gaseous portion may be directed to a compressor configured to pressurize and discharge a pressurized gas into a fluid discharge line. A portion of the pressurized gas may be further pressurized and directed to at least one ejector pump fluidly coupled to the liquid reservoir and configured to draw in liquid and discharge pressurized liquid into the fluid discharge line.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: April 2, 2013
    Assignee: Dresser-Rand Company
    Inventors: H. Allan Kidd, William C. Maier, Gocha Chochua
  • Patent number: 8235678
    Abstract: A differentially pumped vacuum system includes first, second and third chambers, and a pumping arrangement for evacuating the chambers. The pumping arrangement includes a compound pump having a first inlet connected to an outlet from the first chamber, a second inlet connected to an outlet from the second chamber, a first pumping section and a second pumping section downstream from the first pumping section, the sections being arranged such that fluid entering the compound pump from the first inlet passes through the first and second pumping sections and fluid entering the compound pump from the second inlet passes through, of said sections, only the second section. The pumping arrangement further includes a booster pump having an inlet connected to an outlet from the third chamber, and a backing pump having an inlet connected to the exhaust from the booster pump. Fluid exhaust from the compound pump can be conveyed to either a second booster pump inlet or the backing pump inlet as required.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: August 7, 2012
    Assignee: Edwards Limited
    Inventor: Ian David Stones
  • Patent number: 8197227
    Abstract: An improved multi-stage compressor device for compressing gas, which compressor device (1) mainly consists of at least two compressor elements (2-5-28) placed in series one after the other, at least one of which (5-28) is driven by a motor (9), characterized in that at least one other compressor element (2) is driven separately, in other words without any mechanical link with said motor (9), by means of an expander (18) of a closed power cycle (12) with a circulating medium inside which is heated by the compressed gas.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: June 12, 2012
    Assignee: Atlas Copco Airpower, Naamloze Vennootschap
    Inventor: Philippe Alphonse Louis Ernens
  • Patent number: 8142452
    Abstract: Methods and devices are provided for regulating a hydraulic restriction system including a restriction device. In general, the methods and devices can allow for non-invasive, transient pressure control. The methods and devices can also, in some embodiments, mechanically regulate pressure of the restriction device without using any electrical components that may need to be powered to operate over extended periods of time.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: March 27, 2012
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Jonathan A. Coe, Christopher W. Widenhouse, Thomas E. Adams, Juan S. Ezolino, David Martin
  • Publication number: 20110198887
    Abstract: A double-acting piston compressor (1) includes at least one cylinder (3) in which a double-acting piston (4) moves, the cylinder (3) and the piston (4) jointly defining an upper chamber (5) and a lower chamber (6) each provided with at least one intake duct (7) and at least one delivery duct (8), and each duct including at least one valve (90, 91), and a linking rod (10) connecting the double-acting piston (4) to a transmission member (11) collaborating, on the one hand, with a guide roller (12) and, on the other hand, with a pinion (15), at least one anchoring member (22) collaborating with the pinion (15), a connecting rod (25) to which the pinion (15) is articulated by a pivot pin (26), the connecting rod (25) being connected to the crank (28) of a crankshaft (27) housed in bearings formed in the compressor casing (2).
    Type: Application
    Filed: February 17, 2011
    Publication date: August 18, 2011
    Inventor: Vianney RABHI
  • Patent number: 7845914
    Abstract: A fast fill pump system for a self-propelled field sprayer includes high capacity centrifugal pump for tank filling. The centrifugal pump is connected in parallel with the fill connection and primed by a lower capacity diaphragm spraying pump. Two check valves and a pressure sensor allow the sprayer control to automatically control the pump priming and tank filling with the activation of one switch. The two-pump system preserves tank filling speed, even during operation of eductor or tank agitation functions. The centrifugal pump can be removed and the spraying pump operated to fill the tank without substantial base machine modification.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: December 7, 2010
    Assignee: Deere & Company
    Inventors: Joshua Jacob Engelbrecht, Kent Alvin Klemme
  • Patent number: 7789202
    Abstract: Disclosed is a pressurized internal oil management system, comprising an oil dam, at least one oil separator, at least one oil collection manifold, at least one oil pump, and one or more paths for returning the separated oil; said system integrated within the casing of a fluid displacement device to supply adequate lubrication regardless of orientations under zero to full gravity, and methods and applications related thereto. Fluid displacement devices useful herein include oil lubricated rotary or reciprocating machinery, such as compressors, expanders, pumps and engines, in the casing of which exists one or more drive mechanisms that can be utilized to operate the oil management system, in most cases without even increasing the size of the casing.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: September 7, 2010
    Assignee: Aspen Compressor, LLC.
    Inventors: Kang P. Lee, William Gronemeyer
  • Publication number: 20090246038
    Abstract: An oil-free turbo vacuum pump is capable of evacuating gas in a chamber from atmospheric pressure to high vacuum. The turbo vacuum pump includes a pumping section having rotor blades and stator blades which are disposed alternately in a casing, a main shaft for supporting the rotor blades, and a bearing and motor section having a motor for rotating the main shaft and a bearing mechanism for supporting the main shaft rotatably. A gas bearing is used as a bearing for supporting the main shaft in a thrust direction, spiral grooves are formed in both surfaces of a stationary part of the gas bearing, and the stationary part having the spiral grooves is placed between an upper rotating part and a lower rotating part which are fixed to the main shaft.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 1, 2009
    Applicant: EBARA CORPORATION
    Inventors: Hiroyuki KAWASAKI, Hiroaki OGAMINO, Hiroshi SOBUKAWA
  • Publication number: 20090113888
    Abstract: In open-circuit hydraulic systems (1), the cross-sections of the supply lines (6) and input valves of the hydraulic pump (3) have to be large, so that sufficient flow flux can be provided. This hinders a reduction of the size of the pump and the whole hydraulic system. It is suggested that the supply flow (7) of a hydraulic pump (3) is charged by a second, charging pump (2), to a mid-pressure level (7). The cross-sections of the supply flow areas can thus be decreased.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 7, 2009
    Applicant: Sauer-Danfoss ApS
    Inventors: Onno Kuttler, Luke Wadsley, Michael D. Gandrud, Pierre Joly
  • Publication number: 20090110565
    Abstract: A progressing cavity pump system including a feeder assembly including a hopper for receiving material to be pumped therein. The feeder assembly includes an auger housing receiving an auger therein. The auger housing has an underlying portion positioned generally below the hopper and having a radial opening open to the hopper, and an extension portion which is generally radially closed. The extension portion and the underlying portion are of a one-piece, seamless construction. The pump system further includes a progressing cavity pump including a rotor, a stator, an inlet and an outlet. The rotor is rotationally disposed inside the stator such that rotation of the rotor causes material in the pump to be pumped from the inlet toward the outlet, and the inlet is fluidly coupled to the extension portion.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 30, 2009
    Applicant: MOYNO, INC.
    Inventors: Dale H. Parrett, Adam C. Downey, Jeffrey Ellinger
  • Patent number: 7448857
    Abstract: In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a direction along a longitudinal axis of the feed screw to enhance consistency in material flow through the cartridge. The feed screw is preferably driven by a closed-loop servo motor to achieve high-performance dispensing resolution. The assembly is preferably compatible with fixed-z and floating-z cartridges.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: November 11, 2008
    Assignee: DL Technology, LLC
    Inventor: Jeffrey Fugere
  • Publication number: 20080145205
    Abstract: A vacuum pump comprises a first pumping section 106, and, downstream therefrom, a second pumping section 108. The pump comprises a first pump inlet 120 through which fluid can enter the pump and pass through both the first and second pumping sections towards a pump outlet, and a second pump inlet 122 through which fluid can enter the pump and pass through only the second pumping section towards the outlet. The second pumping section 108 comprises at least one turbo-molecular pumping stage 109a, 109b and, downstream therefrom, an externally threaded rotor 109c.
    Type: Application
    Filed: January 9, 2006
    Publication date: June 19, 2008
    Inventor: Ian David Stones
  • Patent number: 7226274
    Abstract: A concrete slab leveling apparatus is provided that is built upon a vehicle such as a flatbed truck or trailer which makes it highly transportable enabling the invention to move from site to site quickly and easily. The flatbed platform of the vehicle is equipped with a material bin which is a relatively large opened topped box which holds the material that is to be pumped under a settled concrete slab. The material bin is also fitted with an auger that extends the length of the lower surface and is a screw-like device which is rotationally driven to move the material contained within the bin towards the front of the auger channel during operations so that it can be moved efficiently into the pump assembly. The present invention is also equipped with a hydraulic pump assembly which drives the fill material from the material bin and through a hose to the proper location under a concrete slab.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: June 5, 2007
    Inventor: Charles Lee Asplin
  • Patent number: 7131555
    Abstract: A method for discharging fluid, includes while keeping two members relatively moving to each other along a gap direction of a gap formed by two opposing surfaces of the two members, feeding fluid from a fluid supply device to the gap, and intermittently discharging the fluid by utilizing a pressure change made by changing the gap, and controlling a fluid discharge amount per dot depending on pressure and flow rate characteristics of the fluid supply device.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: November 7, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Teruo Maruyama, Takashi Inoue, Ryoji Hyuga
  • Patent number: 6805538
    Abstract: A pump, for supplying high pressure fuel from a fuel tank to an engine via a common rail, includes a motor assembly (20) mounted on top of the fuel tank, a pump assembly (26) positioned within the fuel tank, and a support column (32) rotatably connecting the motor assembly to the pump assembly. A high pressure pump sub-assembly (46) includes a pump body (48) having a drive bore (50) and multiple plunger bores (60) formed therein. The external profile of a drive member (58) which is rotatable within the drive bore engages the radially inner end of pumping plungers (62) disposed in each of the plunger bores for a portion of each revolution to reciprocally move the plungers between radially inner and outer limit positions. Reciprocation towards the inner limit position induces a low pressure in the radially outer end of the plunger bore, thereby drawing fuel via the drive bore without the aid of a low pressure pump.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: October 19, 2004
    Assignee: Stanadyne Corporation
    Inventor: Ilija Djordjevic
  • Patent number: 6790013
    Abstract: A variable displacement vane-type fluid pump is provided which permits improved regulation of the pump discharge such that the pump can meet the various requirements of lubrication for internal combustion engines at all speeds with minimized use of power. Of course, the vane pump may also be utilized in a wide range of power transmission and other fluid distribution applications. The vane pump of the invention may also use both hydrostatic and mechanical actuators to control the position of its containment ring or eccentric ring and hence, regulate the output of the pump. According to yet another aspect of the present invention, to prevent inlet flow restriction or cavitation, a valve may be provided to permit some of the pump outlet or discharge flow to bleed into the pump inlet to provide needed velocity energy to the fluid flow into the pump inlet.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: September 14, 2004
    Assignee: BorgWarner Inc.
    Inventors: Douglas G. Hunter, Albin J. Niemiec
  • Patent number: 6758656
    Abstract: A multi-stage internal gear/turbine fuel pump for a vehicle includes a housing having an inlet and an outlet and a motor disposed in the housing. The multi-stage internal gear/turbine fuel pump also includes a shaft extending axially and disposed in the housing. The multi-stage internal gear/turbine fuel pump further includes a plurality of pumping modules disposed axially along the shaft. One of the pumping modules is a turbine pumping module and another of the pumping modules is a gerotor pumping module for rotation by the motor to pump fuel from the inlet to the outlet.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: July 6, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Eugen Maier, Michael Raymond Raney
  • Patent number: 6695591
    Abstract: A multi-stage compressor comprises a gas compressor, a centrifugal blower having an input connected with a gas source and an output connected with the gas compressor and providing a flow of compressed gas as a first stage of compression to the gas compressor, and a power source mechanically connected with and driving both the centrifugal blower and gas compressor to provide multi-stage compression of said gas.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: February 24, 2004
    Assignee: Grimmer Industries, Inc.
    Inventors: John E. Grimmer, Edward T. Ketcham
  • Patent number: 6629822
    Abstract: An axial piston pump that enables fluid entering the pump to be pre-charged without the addition of an auxiliary pumping mechanism or other type of external fluid precharge, comprises a housing having a cylindrical inner wall surface surrounding a barrel chamber, a barrel mounted for rotation within the barrel chamber in the housing and having a plurality of circumferentially spaced piston bores therein, and a plurality of pistons reciprocally movable in the piston bores for pumping fluid from a delivery passage to an exhaust passage. The barrel has at least one and preferably plural impeller vanes projecting radially outwardly and terminating at a radially outer vane edge adjacent the inner wall surface of the barrel chamber. Upon rotation of the barrel, the impeller vanes function to supercharge the fluid supplied to the piston bores.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: October 7, 2003
    Assignee: Parker Hannifin Corporation
    Inventors: Bruce Larkin, John Jones, Vaughn Ryan Gerber
  • Publication number: 20030103847
    Abstract: A multiple cylinder having a plurality of cylinders arranged concentrically and a rotor shaft rotatably disposed on the center axis of the multiple cylinder are provided in a pump casing. Each of the cylinders that constitute the multiple cylinder has a mounting portion, through which the cylinders are integrally fixed to the rotor shaft.
    Type: Application
    Filed: December 3, 2002
    Publication date: June 5, 2003
    Inventors: Manabu Nonaka, Tooru Miwata, Takashi Kabasawa
  • Publication number: 20020187051
    Abstract: A multi-stage internal gear/turbine fuel pump for a vehicle includes a housing having an inlet and an outlet and a motor disposed in the housing. The multi-stage internal gear/turbine fuel pump also includes a shaft extending axially and disposed in the housing. The multi-stage internal gear/turbine fuel pump further includes a plurality of pumping modules disposed axially along the shaft. One of the pumping modules is a turbine pumping module and another of the pumping modules is a gerotor pumping module for rotation by the motor to pump fuel from the inlet to the outlet.
    Type: Application
    Filed: April 19, 2002
    Publication date: December 12, 2002
    Inventors: Eugen Maier, Michael Raymond Raney
  • Publication number: 20020122729
    Abstract: To provide a small vacuum pump making it possible to efficiently perform evacuation from the atmosphere to a high vacuum (degree of vacuum: 10−5 Pa) by using a single pump unit. A turbo-molecular pump mechanism portion is arranged on the high-vacuum side, a volute pump mechanism portion is arranged on the atmosphere side, and a thread groove pump mechanism portion is arranged between the turbo-molecular pump mechanism portion and the volute pump mechanism portion. Further, rotor blades of the turbo-molecular pump mechanism portion, a rotor of the thread groove pump mechanism portion, and an impeller of the volute pump mechanism portion are integrally mounted to a single rotor shaft, which is rotated by a single motor.
    Type: Application
    Filed: October 30, 2001
    Publication date: September 5, 2002
    Inventors: Yoshihiro Yamashita, Manabu Nonaka, Takashi Kabasawa
  • Patent number: 6422829
    Abstract: The invention relates to a friction vacuum pump (1) containing at least one turbomolecular pump stage (6, 7), a screw pump stage (11, 12) connected to the delivery side of the pump, and a filling stage (24) arranged between the turbomolecular pump stage (6, 7) and the screw pump stage (11, 12). According to the invention it is proposed that said filling stage (24) be configured as a centrifugal stage in order to simplify the construction thereof.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: July 23, 2002
    Assignee: Leybold Vakuum GmbH
    Inventor: Günter Schütz
  • Patent number: 6409477
    Abstract: A vacuum pump including suction and discharge regions, two gas friction pumps arranged on opposite side of the suction region and parallel to each other and each having at least one stage and a discharge region channels connecting the discharge regions and providing for gas flow from the discharge regions into a common discharge region of the two gas friction pumps, and a multi-stage pump located downstream of both gas friction pumps for compressing the gas flowing through the multi-state pump and having a suction region and a discharge region connected with the discharge region of the vacuum pump, with gas flowing into the suction region from the common discharge region of the two gas friction pumps.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: June 25, 2002
    Assignee: Pfeiffer Vacuum GmbH
    Inventors: Armin Blecker, Wolfgang Eberl, Heinrich Lotz, Heinz Reichhart
  • Patent number: 6353274
    Abstract: The present invention provides a mounting structure of a rotary shaft of rotary electric machinery in which it is possible to cope with vibration of the rotary shaft in an axial direction with a low parts count. A fitting groove into which a portion of a rear side stopper is fitted is formed at a rear end portion of the rotary shaft. A rear side stopper has three projecting chips fitted into the fitting groove and three leaf spring chips in contact with an inner ring of a rolling bearing forming a bearing structure. The rear side stopper has a structure in which the rear side stopper generates spring force for restoring an original shape thereof when the rear side stopper is compressed in an axial direction of the rotary shaft. The rear side stopper is disposed in a compressed state between a wall face surrounding the fitting groove and the inner ring of the rolling bearing.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: March 5, 2002
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Toshiki Ogawara, Toshio Shinohara, Michihiro Suzuki
  • Patent number: 6164939
    Abstract: A scroll pump comprising a fixed scroll, an orbiting scroll orbiting with a radius which is the same as the eccentric distance of an eccentric shaft to the center of the fixed scroll and contacting the fixed scroll, an inlet port formed in the middle of the upper side of the fixed scroll to influx incompressible hydraulic fluid into the scroll pump, a pressure chamber formed at the outside of the orbiting scroll to raise the pressure of the incompressible hydraulic fluid, and an outlet port formed at the side of the fixed scroll to discharge the incompressible hydraulic fluid from the scroll pump.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: December 26, 2000
    Assignee: LG Electronics Inc.
    Inventors: Moon Ki Chung, Seong Bin Lee
  • Patent number: 6106240
    Abstract: A gerotor pump including a ring gear and a pinion gear supported on a pump housing for rotation about parallel, laterally separated centerlines. A plurality of pump chambers defined by the teeth of the ring and pinion gears expand in an inlet half of a crescent-shaped cavity between the ring and pinion gears and collapse in a discharge half. An inlet port in a first side wall of the pump housing faces the inlet half of the crescent-shaped cavity. A primary discharge port in an opposite second side wall of the pump housing faces the discharge half of the crescent-shaped cavity and is timed relative to the inlet port for pumping low bulk modulus fluid. A shallow groove in the first end wall of the housing defines a secondary discharge port timed relative to the inlet port for pumping high bulk modulus fluid. In the timing interval between the secondary and the primary discharge ports, i.e.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: August 22, 2000
    Assignee: General Motors Corporation
    Inventors: John Gardner Fischer, Giulio Angel Ricci-Ottati
  • Patent number: 6059537
    Abstract: A fuel pressurization and pumping system for use in a turbine powered aircraft or the like makes use of the advantages of centrifugal pumps, even in a high pressure mode and includes a centrifugal volute pump (24) having a fuel inlet (28) and fuel outlet (32) along with a regenerative pump (34) having a fuel inlet (36) and a fuel outlet (38). The fuel outlet (32) of the centrifugal volute pump (24) is connected to the fuel inlet (36) of the regenerative pump (34) and a valve (50) is provided for blocking flow from the centrifugal volute pump (24) to the regenerative pump (34). A first pressure regulator (56) is connected to regenerative pump outlet (38) for maintaining pressure thereat at a relatively low elevated level and a second pressure regulator (130) is connected to the regenerative pump outlet (38) for maintaining pressure thereat at a relatively high elevated level. A valve system (66), (90) is provided for selectively disabling the first pressure regulator (56).
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: May 9, 2000
    Assignee: Sundstrand Corporation
    Inventor: John Edward Cygnor