Fluid Motor Patents (Class 417/375)
  • Patent number: 11168809
    Abstract: A passive sequential pump system for use in moving a fluid is provided. The system comprises a plurality of valves. Each valve of the plurality of valves is positioned adjacent to another valve of the plurality of valves. Each of the plurality of valves includes an opening and an inner surface. The inner surface is expandable towards the opening. The system also comprises a conduit defined by the opening of each of the plurality of valves. The system further comprises an air source providing air to each of the plurality of valves and a controller controlling the air source to each of the plurality of valves. The system generates peristaltic motion to move a fluid through the conduit by increasing the air in each of the plurality of valves, thereby correspondingly closing each opening in sequence, peristaltic motion is generated to move a fluid through the conduit.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: November 9, 2021
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Adam Robert Dotson, Dale E. Jamison
  • Patent number: 11073141
    Abstract: A pressure-driven metered treating chemistry dispensing pump for a laundry treating appliance having a housing having first, second and third chambers, with the first and second chambers each in fluid communication with the third chamber; a fluid inlet fluidly coupling a first fluid to the first chamber; an outlet fluidly coupled to the third chamber; a piston disposed in the housing; wherein, when the piston moves in a first direction in response to the first fluid entering the first chamber via the fluid inlet, the second chamber decreases in volume thereby ejecting at least some of the second fluid from the second chamber into the third chamber, and when the piston moves in a second direction, different from the first direction, the first chamber decreases in volume thereby ejecting at least some of the first fluid from the first chamber into the third chamber to mix the at least some of the first fluid and the at least some of the second fluid to form a mixture in the third chamber, which can be emitted t
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 27, 2021
    Assignee: Whirlpool Corporation
    Inventors: Matthew C. Parsons, Robert J. Pinkowski, Nicholas E. Righetti, Ricardo N. Schiesser
  • Patent number: 10890172
    Abstract: A reciprocating fluid pump includes a pump body, a subject fluid chamber, a first plunger located within the subject fluid chamber of the pump body and having a first head portion and a first bellows, the first plunger configured to expand and compress in a reciprocating action to pump the subject fluid through the subject fluid chamber within the pump body, wherein the first head portion and the first bellows have a first cross-sectional dimension, and a second plunger located within the subject fluid chamber of the pump body and having a second head portion and a second bellows, the second plunger configured to expand and compress in a reciprocating action to pump the subject fluid through the subject fluid chamber within the pump body, wherein the second head portion and the second bellows have a second cross-sectional dimension that is smaller than the first cross-sectional dimension.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: January 12, 2021
    Assignee: White Knight Fluid Handling Inc.
    Inventors: Tom Simmons, Courtney Parsons
  • Patent number: 10788029
    Abstract: A system includes, in an exemplary embodiment, a hydraulic cylinder having a barrel, a piston connected to a rod string of the rod pump, and a pressure chamber; a reversible hydraulic pump connected to the pressure chamber; and a motor-generator having a rotor shaft connected to a coupling shaft of the pump. The motor-generator operates in a motor mode to rotate the rotor and coupling shafts in a forward direction so that the hydraulic pump pumps hydraulic fluid to the pressure chamber to raise the piston and rod string in an upstroke, and operates in a generator mode in which a weight of the rod string displaces the piston in a downstroke to pump hydraulic fluid from the pressure chamber to rotate the pump coupling shaft and the rotor shaft in a reverse direction such that the motor-generator generates electricity. A variable speed drive modulates the speed of the motor-generator.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 29, 2020
    Inventor: Micheal Neil Scott
  • Patent number: 10012027
    Abstract: A hose release device allowing a length change of a pressure medium hose caused by expansion under high pressure is provided. A method of managing hoses and executing a deflection to the hose so that extra length is reserved in the system incorporates such a hose release device.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: July 3, 2018
    Assignee: SANDVIK MINING AND CONSTRUCTION OY
    Inventor: Jouni Kinnunen
  • Patent number: 9447704
    Abstract: A heat recovery system for an internal combustion engine may include a heat transfer device flowed through by a fluidic heat carrier for transferring the heat from a combustion exhaust gas of the internal combustion engine to the heat carrier, a heat power machine flowed through by the heat carrier for converting the heat transferred to the heat carrier into mechanical work, a substantially cyclically closed duct system for connecting the heat transfer device with the heat power machine, at least one displacement pump for conveying the heat carrier through the duct system in a predetermined flow direction, and a pump drive for driving the displacement pump. A reduced wear may result when the heat recovery system is supplemented by an impermeable separating membrane for the fluid-tight separation of the heat carrier from the pump drive.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: September 20, 2016
    Assignee: Mahle International GmbH
    Inventors: Jochen Eggler, Alfred Elsaesser, Christian Maisch, Sascha Senjic
  • Publication number: 20150139829
    Abstract: A pumping assembly includes a hydraulic pump having a hydraulic ram tied to a reciprocating annular piston having a central bore. When the annular piston moves in an upward direction, the hydraulic ram moves toward an extended position extending from the housing. When the annular piston moves in a downward direction, the hydraulic ram moves toward a retracted position retracted within the housing. A polish rod extends up through the central bore of the annular piston and is held in position by a polish rod clamp positioned on top of the hydraulic ram. The polish rod moves with the hydraulic ram. Other pumping systems, devices, and methods are also disclosed.
    Type: Application
    Filed: September 22, 2014
    Publication date: May 21, 2015
    Applicant: 1238585 ALBERTA LTD.
    Inventor: Perry L. St. Denis
  • Publication number: 20150121859
    Abstract: Disclosed herein are an apparatus and a method for supplying a fuel to an engine of a ship. The apparatus for supplying a fuel to an engine of a ship includes: a high pressure pump pressurizing a liquefied natural gas (LNG) and supplying the pressurized LNG to the engine; a hydraulic motor driving the high pressure pump; and a lubricating pump supplying lubricating oil to the high pressure pump.
    Type: Application
    Filed: October 23, 2014
    Publication date: May 7, 2015
    Inventors: Nak Hyun KIM, Dong Chan KIM, Cheong Gi PARK, Je Heon JUNG
  • Patent number: 8939733
    Abstract: A fan for an engine ventilation system includes a housing defining an inlet and an outlet. A hydraulic motor is coupled to the fan housing and includes a motor housing, motor shaft, and shaft seal disposed between the motor housing and the motor shaft. An impeller assembly is disposed in the housing, as well as a stationary baffle that includes a baffle inner edge disposed axially between the impeller assembly and a second wall of the fan housing. A deflector disc is coupled to the impeller assembly and includes a deflector disc outer edge positioned axially rearward of the baffle inner edge. The deflector disc and baffle direct any hydraulic fluid leaking past the shaft seal away from the impeller assembly to a collection chamber.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: January 27, 2015
    Assignee: Caterpillar Inc.
    Inventors: Ryan Chiaki Mann, Kalpeshbhai G. Patel, William N. O'Neill
  • Publication number: 20140341755
    Abstract: A pump system for producing fluids from a reservoir using a wellbore having a vertical section with a casing defining an annulus, a transitional section and a horizontal section, and a production tubing having a vertical section and a horizontal section, wherein the system includes a completion with an isolation device in the annulus near the bottom of the vertical section, a gas/liquid separator for receiving produced fluids from the horizontal section, and a vertical lift pump; a continuous flow path from the terminus of the production tubing to the vertical section; a plurality of horizontal pumps in the horizontal section, each having an intake exposed to the reservoir and an outlet in the continuous flow path. The horizontal length of the production tubing is closed to the reservoir except through the horizontal pumps.
    Type: Application
    Filed: December 17, 2012
    Publication date: November 20, 2014
    Applicant: RAISE PRODUCTION, INC.
    Inventors: Eric Laing, Geoff Steele, Dan Fletcher, Herve Ohmer
  • Patent number: 8875781
    Abstract: A pumping assembly includes a hydraulic pump having a hydraulic ram tied to a reciprocating annular piston having a central bore. When the annular piston moves in an upward direction, the hydraulic ram moves toward an extended position extending from the housing. When the annular piston moves in a downward direction, the hydraulic ram moves toward a retracted position retracted within the housing. A polish rod extends up through the central bore of the annular piston and is held in position by a polish rod clamp positioned on top of the hydraulic ram. The polish rod moves with the hydraulic ram. Other pumping systems, devices, and methods are also disclosed.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: November 4, 2014
    Assignee: 1238585 Alberta Ltd.
    Inventor: Perry L. St. Denis
  • Patent number: 8876490
    Abstract: A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certain limit. A valve element of the valve has spring, hydraulic and pneumatic sections, with an unbalanced area of the hydraulic section in a sealed pressure chamber of a cartridge that is part of the valve housing. The pneumatic section extends out one end of the cartridge to fill a bore between the air inlet and outlet ports when the pneumatic section is extended, and allow air to pass when it is retracted.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: November 4, 2014
    Assignee: Actuant Corporation
    Inventors: Frantz D. Stanford, Bruce E. Knuth, Kay Lap Gilbert Chan
  • Publication number: 20140241913
    Abstract: A cryogenic hydraulic reciprocating piston pump includes a casing which defines a piston chamber. The sidewall of the piston chamber includes a retraction spill port as well as a pumping spill port. At the end of a retraction stroke, a retraction spill passageway that extends through the piston becomes aligned with the retraction spill port and fluid is communicated from the pressurized side of the piston to the unpressurized side of the piston to stop the retraction stroke before the piston “bottoms out”. Similarly, at the end of a pumping stroke, a pumping spill passageway that extends through the piston becomes aligned with the pumping spill port which provides communication between the pressurized side of the piston and the unpressurized side of the piston thereby stopping movement of the piston before it “bottoms out”.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: CATERPILLAR INC.
    Inventor: Daniel Reese Puckett
  • Publication number: 20140199190
    Abstract: An integrated foot-operated pump control system for a variable-flow hydraulic power take-off assembly for use with an ATV. The integrated foot-operated pump control system simplifies installation, removal, and re-installation of the hydraulic power take-off assembly, eliminates hand fatigue, and enhances safety. The integrated foot-operated pump control system is embodied in a hydraulic power take-off unit having a variable-flow pump with a flow control mechanism and a foot-operated pump control system having a foot pedal and a control cable that remain attached to the hydraulic power take-off unit when it is disconnected from the ATV.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 17, 2014
    Applicant: PROMANPTO, LLC
    Inventor: Kirk Jones
  • Publication number: 20140161627
    Abstract: A method includes driving a fluid pumping unit having a plurality of pumping cylinders via a plurality of hydraulic cylinders respectively of a hydraulic power unit. The method further includes controlling activation of the hydraulic power unit such that each stroke of the corresponding piston assembly between the top dead center and the bottom dead center follows a corresponding trapezoidal velocity profile with respect to a time duration. Controlling activation includes controlling flow of a hydraulic fluid in the hydraulic power unit so as to control the corresponding trapezoidal velocity profile with respect to the time duration of the corresponding piston assembly to obtain a predefined flow rate of the fluid medium from the pumping unit.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Shyam Sivaramakrishnan, Todd Alan Anderson, Matthew David d'Artenay, Dean David Marschke
  • Publication number: 20140138957
    Abstract: The invention is a power generator using intermittent fluid flow. The invention facilitates the harnessing of electric power from intermittent wind sources. The apparatus includes panels that are pivotally attached to a frame at a substantially vertical orientation and pivot towards an acute angle to the horizontal. As wind blows, the panels lift outward relative to the vertical. The motion may be transferred by actuating a hydraulic cylinder. This motion pressurizes the cylinder and the pressurized hydraulic fluid may later be transferred into electric power via a hydraulic generator. The panels may also include one or more photovoltaic cells which collect and convert sun light into electric power.
    Type: Application
    Filed: September 19, 2013
    Publication date: May 22, 2014
    Inventor: John A. Saavedra
  • Publication number: 20140140869
    Abstract: Reciprocating fluid pumps include a reinforced shaft including an inner shaft and a protective cover. The protective cover at least substantially encapsulates the inner shaft. The inner shaft exhibits a greater resistance to mechanical deformation than the protective cover, and the protective cover exhibits a greater resistance to chemical corrosion by the subject fluid than the inner shaft. Methods of forming reciprocating fluid pump include forming a reinforced shaft and positioning the reinforced shaft within a subject fluid chamber and between two plungers.
    Type: Application
    Filed: November 19, 2013
    Publication date: May 22, 2014
    Inventors: John M. Simmons, Tom M. Simmons, David M. Simmons
  • Patent number: 8721884
    Abstract: Disclosed are hemodialysis and similar dialysis systems including fluid flow circuits. Hemodialysis systems may include a blood flow path, and a dialysate flow path including balancing, mixing, and/or a directing circuits. Preparation of dialysate may be decoupled from patient dialysis. Circuits may be defined within one or more cassettes. The fluid circuit and/or the various fluid flow paths may be isolated from electrical components. A gas supply may be provided that, when activated, is able to urge dialysate through the dialyzer and blood back to the patient. Such a system may be useful during a power failure. The hemodialysis system may also include fluid handling devices, such as pumps, valves, mixers, etc., actuated using a control fluid. The control fluid may be delivered to the fluid handling devices using a detachable external pump. The fluid handling devices may have a spheroid shape with a diaphragm dividing it into two compartments.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: May 13, 2014
    Assignee: DEKA Products Limited Partnership
    Inventors: Michael J. Wilt, Jason A. Demers, Kevin L. Grant, Brian D. Tracey, James D. Dale
  • Patent number: 8689823
    Abstract: A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certain limit. A valve element of the valve has spring, hydraulic and pneumatic sections, with an unbalanced area of the hydraulic section in a sealed pressure chamber of a cartridge that is part of the valve housing. The pneumatic section extends out one end of the cartridge to fill a bore between the air inlet and outlet ports when the pneumatic section is extended, and allow air to pass when it is retracted.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: April 8, 2014
    Assignee: Actuant Corporation
    Inventors: Frantz D. Stanford, Bruce E. Knuth, Kay Lap Gilbert Chan
  • Publication number: 20140034162
    Abstract: A multiple pump system is disclosed. The multiple pump system may include a fluid tank and a multiple pump vessel connected to the fluid tank. The multiple pump vessel may include at least one first pump and at least one second pump located therein. In addition, the at least one first pump may be configured to dispense a fluid from the fluid tank at a first pressure, and the at least one second pump may be configured to dispense the fluid from the fluid tank at a second pressure. The first pressure may be different from the second pressure, such that the at least one first pump may be configured to dispense liquefied natural gas, and the at least one second pump may be configured to dispense compressed natural gas.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 6, 2014
    Inventor: Michael Mackey
  • Publication number: 20140023530
    Abstract: A fuel supply system for a vehicle uses a multi-piston LPG injunction pump which pumps fluid from a storage tank to an engine. The multi-piston pump uses the vehicle's pneumatic air system, wherein the pressurized air of this system alternatingly drives at least two pistons of the piston pump. Each piston moves through a pumping stroke and a return stroke wherein one piston moves through a pumping stroke, while the opposite piston moves through a return stroke. The pump includes barrier fluid chambers surrounding each of the pistons wherein during a pumping stroke of one piston, a first barrier fluid chamber associated with the one piston decreases in volume as the piston displaces through its pumping stroke. This reduction in volume of the barrier chamber drives the barrier fluid out of the first barrier fluid chamber into a second barrier fluid chamber associated with the second piston.
    Type: Application
    Filed: January 7, 2013
    Publication date: January 23, 2014
    Inventors: Michael E. Frey, Richard E. Foster, Michael D. Walters
  • Patent number: 8632315
    Abstract: An air motor includes ceramic valves and valve plates to enhance performance and efficiency of the air motor.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: January 21, 2014
    Assignee: Ingersoll-Rand Company
    Inventor: Thomas R. Headley
  • Patent number: 8568112
    Abstract: An air valving system for a reciprocating piston pump (5) which uses piston (10) actuated poppet assemblies (40) to control the main air valve (16) shift. The valve exhaust is vented (50) directly to atmosphere rather than through the main exhaust to ensure reliability. A ramped detent (32) prevents the air valve (16) from centering.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: October 29, 2013
    Assignee: Graco Minnesota Inc.
    Inventors: Mark L. Bauck, John F. Isais, Jr., Mark T. Weinberger, David M. Pittman, Michael E. Bloom
  • Publication number: 20130272905
    Abstract: Device for transferring energy between a driving fluid and a driven fluid without contacting or mixing with each other is provided.
    Type: Application
    Filed: September 2, 2011
    Publication date: October 17, 2013
    Inventor: Dattatraya Rajaram Shelke
  • Publication number: 20130243620
    Abstract: A dual outlet pressure pump includes a housing having first and second inlets as well as first and second outlets. A plurality of vanes are driven by a rotor. An asymmetric rotor cavity includes a first surface engaged by the vanes shaped to at least partially define a plurality of low pressure, high volume chambers. The cavity also includes a second surface engaged by the vanes shaped to at least partially define a plurality of high pressure, low volume chambers. Rotation of the rotor and vanes substantially simultaneously pumps a high volume of low pressure fluid between the first inlet and the first outlet and a low volume of high pressure fluid between the second inlet and the second outlet.
    Type: Application
    Filed: October 5, 2011
    Publication date: September 19, 2013
    Inventors: Jaroslaw Lutoslawski, Matthew Williamson, Andrzej Kowalski
  • Patent number: 8523543
    Abstract: A pumping assembly includes a well head with a radial flow channel for pumped fluids. A spacer stand is secured to the well head. A hydraulic pump is provided with a housing secured to the spacer stand. The hydraulic pump has a hydraulic ram tied to a reciprocating annular piston having a central bore. When the annular piston moves in an upward direction the hydraulic ram moves toward an extended position extending from the housing. When the annular piston moves in a downward direction, the hydraulic ram moves toward a retracted position retracted within the housing. A polish rod extends up through the central bore of the annular piston and is held in position by a polish rod clamp positioned on top of the hydraulic ram. The polish rod moves with the hydraulic ram.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: September 3, 2013
    Assignee: 1238585 Alberta Ltd.
    Inventor: Perry L. St. Denis
  • Patent number: 8506268
    Abstract: A method and a lubricant dosing pump for accurately dosing the small lubricant quantities. It is provided that at least two pistons are moved from an initial position relative to one another, thereby enlarging a dosing volume situated between them, and that thereby lubricant is conveyed through an inlet into the closing volume. Subsequently, the inlet is sealed and the two pistons situated opposite to each other in the stroke direction are moved together with the dosing volume until in a discharge position the dosing volume is connected with a discharge opening spaced apart from the inlet in the stroke direction. Then, the pistons are moved relative to each other, thereby reducing the dosing volume, and convey a predetermined dosing quantity of the lubricant through the discharge opening. Finally, the pistons are moved back into their initial positions.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: August 13, 2013
    Assignee: Willy Vogel AG
    Inventors: Dieter Schoenherr, Friedrich Bauer
  • Publication number: 20130202460
    Abstract: A fluidics pumping device including a body and a driving assembly is provided. The body has a chamber, a channel, an inlet and an outlet. The channel goes through the chamber and connects with the inlet and the outlet. The driving assembly is disposed in the chamber, and the driving assembly has a contact surface exposed in the channel. The contact surface is suitable for moving along an extension direction of the channel, for driving a fluid in the channel.
    Type: Application
    Filed: March 14, 2012
    Publication date: August 8, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Sheng-Li Chang, Chu-Yu Huang, Kuo-Chi Chiu, Yu-Shih Weng
  • Publication number: 20130202459
    Abstract: A water powered pump actuation system configured to power a reciprocating element of a pump. The pump actuation system may comprise a base, a wheel rotatably attached to the base, an attachment element fixed to the wheel and configured to fix the reciprocating element to the wheel. Rotation of the wheel in a first direction raises the reciprocating element and rotation of the wheel in a second direction lowers the reciprocating element. The actuation system may also comprise a cable attached to the wheel and a container attached to the cable, such that rotation of the wheel in the first direction lowers the container and rotation of the wheel in the second direction raises the container. Wheel rotation is controlled by water being cyclically pumped into and then emptied from the container via a pump in a reservoir below the container.
    Type: Application
    Filed: February 6, 2012
    Publication date: August 8, 2013
    Inventor: Denis Francis Roberts
  • Patent number: 8496450
    Abstract: A compressor system supplies compressed air to a commercial vehicle. The compressor system includes a compressor, a clutch, and a hydraulic pump and can be driven by way of a drivetrain. The compressor can be completely disconnected from a driving engine by way of the clutch. The drivetrain encompasses a geared drive mechanism which allows the hydraulic pump to be driven, and the clutch is arranged between the geared drive mechanism and the compressor. A method for operating the compressor system is provided.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: July 30, 2013
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventors: Joerg Mellar, Gilles Hebrard
  • Patent number: 8496449
    Abstract: A rotary air motor driven hydraulic pump has separate pressure and return actuators and first and second stage eccentric driven pistons 180 degrees out of phase and driven by the motor through a gear reduction unit. The pressure and return actuators are on/off/proportional valves and the pump has two pressure relief valves with one adjustable from outside of the pump for a user to set a pressure limit of the pump. Above a certain output pressure limit, a bypass valve shunts flow in excess of that needed to precharge the second stage compression chamber from the first stage piston to an elastic reservoir from which the hydraulic fluid pumped by the pump is drawn. To make the pump stall at a certain output pressure, a pressure limiting valve can be used that cuts off the air supply to the pump at the desired output pressure.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: July 30, 2013
    Assignee: Actuant Corporation
    Inventors: Bruce E. Knuth, Kay Lap Gilbert Chan, Theo H. H. Den Ridder, Frantz D. Stanford, Roger R. Pili
  • Publication number: 20130177456
    Abstract: A housing 10 defining a duct 11 for fluid flow contains a cylinder arrangement 18-20 mounted in or at an outlet end of the duct. An input piston 30 is exposed to the fluid flow through the duct and an obturator member 21 is mounted in the duct 11 and arranged to periodically close the duct downstream of the input piston 30 such that the body of fluid flowing through the duct applies an increased pressure to the input piston. Resulting movement of the input piston can be used to directly provide mechanical power, generate electricity, or provide compression of a volatile fluid which, when ignited, provides thrust through rapid exit of combustion products.
    Type: Application
    Filed: June 17, 2011
    Publication date: July 11, 2013
    Inventor: Frederick Philip Selwyn
  • Publication number: 20130175093
    Abstract: In one aspect, a drilling apparatus is disclosed, that includes a progressive cavity device that includes a plurality of linearly coupled rotors, each rotor disposed in a separate stator, wherein adjoining stators are separated by a coupling device configured to provide lateral support to the rotors. In another aspect, the stators may be enclosed in a common housing. In yet another aspect, the adjoining stator sections may be rigidly connected to each other.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 11, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Kyle L. Taylor, Sundaie L. Klotzer
  • Publication number: 20130164155
    Abstract: In a forklift, power is transmitted to a traveling pump and an operating machine pump through a PTO unit provided to an output shaft of an engine along front-rear direction of a vehicle body. The traveling pump is disposed to a first face of the PTO unit facing the hydraulic motor. An input shaft of the traveling pump is offset from the output shaft of the engine. The drive shaft of the hydraulic motor is offset from the output shaft of the engine and the input shaft of the traveling pump. The hydraulic motor is side by side with the traveling pump. The operating machine pump is mounted to a second face of the PTO unit mounted with the engine. An input shaft of the operating machine pump is offset from the traveling pump. The operating machine pump is under the engine to be side by side with the engine.
    Type: Application
    Filed: July 21, 2011
    Publication date: June 27, 2013
    Applicant: KOMATSU LTD.
    Inventors: Kazuaki Ozawa, Kouichi Ariizumi, Tsutomu Komatsu, Yuuichi Fukata
  • Publication number: 20130105283
    Abstract: The invention relates to a drum motor comprising: a drive unit, such as a rotor/stator unit of an electric motor, or a hydraulic or pneumatic actuator unit, an output shaft connected to the drive unit for transmitting force and torque, an outer drum, which surrounds the output unit at least partially and is rotatably mounted relative to a fastening axis, and a casing, which is connected to the outer surface of the rotatable drum and has a profile. According to the invention, the profile contains a helical groove (40) in the casing that extends over at least part of the surface of the casing and runs helically about the rotational axis of the rotatable drum.
    Type: Application
    Filed: April 26, 2012
    Publication date: May 2, 2013
    Applicant: Interroll Holding AG
    Inventors: Siegmund Dudek, Palani Velladurai
  • Publication number: 20130078120
    Abstract: Improvements in an ejector-less vacuum creation pump using suction from a low vibration and noise Eddy pump to create vacuum from the suction side of the pump volute where a liquid tornado effect feeds into an Eddy current effect located in the tornado center. Low heat is transferred to the fluid used to create the vacuum. The piping provides a fully open looped system, enabling self-priming of the pump where 2? solid objects can pass thru the pump without clogging or plugging the pump. Fluid can be pumped in any direction with up to a 4 psi head pressure using the pump as a dedicated discharge pump and for quicker discharging of a VCHT tank at increased head pressures. This pump implement continuous vacuum creation, maintaining 18 Hg with a vacuum release valve to prevent build-up of urine crystals and other pipe clogging issues.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 28, 2013
    Inventors: Baron Raymond Green, Ben Charles Weinrib
  • Publication number: 20130071259
    Abstract: Provided are various devices and processes that harness the inherent kinetic energy of a flowing pressurized fluid to drive a compressor to compress a fluid without any need for electrical or chemical energy. The flowing drive fluid flows over a boundary layer disk turbine, or Tesla turbine, which is mechanically coupled to a compressor that compresses a fluid. The flowing fluid may be a natural gas from a hydrocarbon recovery operation. The compressed fluid may be air that is used to power a pneumatic device in an industrial process. Harnessing the kinetic energy of the flowing fluid increases economic efficiency of the process, while also avoiding unwanted emissions adverse to the environment and public health.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: LEED FABRICATION SERVICES, INC.
    Inventor: Casey L. BEELER
  • Publication number: 20130058798
    Abstract: A pumping arrangement employs a compensating type hydraulic pump, a directional valving arrangement and a proportioning valving arrangement. When the directional valve is energized, oil is directed to the rod end of the hydraulic cylinder. The rod or piston part of the hydraulic cylinder will then elevate until a first limit switch is actuated which then will de-energize the directional valve and send a current signal to the proportional valve. This current signal to the proportional valve forces it to open to a point at which the cylinder rod would extend at the desired velocity until it reaches a second limit switch. The current signal to the proportional valve is then decreased, creating a choking arrangement that forces the cylinder rod to decelerate. Upon reaching the third limit switch, the signal is removed from the proportional valve so that it closes.
    Type: Application
    Filed: August 7, 2012
    Publication date: March 7, 2013
    Applicant: LUFKIN INDUSTRIES, INC.
    Inventors: Michael A. FESI, Willard J. LAPEYROUSE, Kenneth H. VINCENT
  • Patent number: 8376716
    Abstract: A pump system for pumping a viscous material that includes N positive displacement pumps, where N is an integer greater than two, and a hydraulic drive. Each pump has an inlet and an outlet therefrom, and a pair of cylinders each with a piston movable in a reciprocating stroke cycle therein. The hydraulic drive is connected to the N positive displacement pumps to reciprocate the pistons within the cylinders. The stroke cycle includes a discharging stroke and a filling stroke. The discharging stroke and the filling stroke of the N positive displacement pumps are staggered from one another by 1/N stroke positions such that no two pumps have pistons in the same stroke position at the same time.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: February 19, 2013
    Assignee: Schwing Bioset, Inc.
    Inventors: Thomas M. Anderson, Charles Wanstrom, Franz Tillman
  • Publication number: 20130022480
    Abstract: Devices and methods for recovering production fluid from a subterranean formation using a mechanical-hydraulic production system. A mechanical-hydraulic production system is described that includes a power fluid pump, a production fluid pump and a hydraulically-actuated motor that is associated with the production fluid pump to actuate the production fluid pump. The power fluid pump is mechanically driven from the surface to fluid hydraulic power fluid to the motor, thereby driving the production fluid pump to pump production fluid.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 24, 2013
    Applicant: Baker Hughes Incorporated
    Inventors: Brent D. Storts, Leslie Claud Reid, Edward C. Kanady
  • Patent number: 8353684
    Abstract: A method for compressing a gas by using energy produced from a heat source. A boiler is provided. The boiler is segregated into an upper chamber and a lower chamber by a barrier such as a piston, a bellows, or a diaphragm. The lower chamber is filled with a liquid having a suitable boiling point and other properties. The upper chamber is filled with a gas to be compressed. Heat from any suitable source is applied to the liquid in the lower chamber in order to bring the liquid to a boil, and thereby produce pressurized vapor in the lower chamber. The rising pressure in the lower chamber moves the barrier in the direction of the upper chamber, thereby compressing the gas in the upper chamber.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: January 15, 2013
    Inventor: Grant Peacock
  • Publication number: 20120328457
    Abstract: An unlimited stroke drive method for pumping fluid from an oil well in which the well has a tubing string extending from the earth's surface down to a fluid producing formation. The method includes the steps of positioning a pump barrel within the tubing, an upper end of the pump barrel having communication through a standing valve with the interior of the tubing string, vertically reciprocating a length of flexible cable within the tubing string to vertically reciprocate a plunger within the pump barrel to allow a lower portion to quickly fill with fluid from the producing formation and then to a downward position in which fluid within the pump barrel lower portion is transferred through a traveling valve to an area within the pump barrel above the plunger to move formation fluid from within the pump barrel to the interior of the tubing and thence to the earth's surface.
    Type: Application
    Filed: September 4, 2012
    Publication date: December 27, 2012
    Inventor: T. Leon Brown
  • Publication number: 20120328455
    Abstract: A fan for an engine ventilation system includes a housing defining an inlet and an outlet. A hydraulic motor is coupled to the fan housing and includes a motor housing, motor shaft, and shaft seal disposed between the motor housing and the motor shaft. An impeller assembly is disposed in the housing, as well as a stationary baffle that includes a baffle inner edge disposed axially between the impeller assembly and a second wall of the fan housing. A deflector disc is coupled to the impeller assembly and includes a deflector disc outer edge positioned axially rearward of the baffle inner edge. The deflector disc and baffle direct any hydraulic fluid leaking past the shaft seal away from the impeller assembly to a collection chamber.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 27, 2012
    Applicant: CATERPILLAR, INC.
    Inventors: Ryan Chiaki Mann, Kalpeshbhai G. Patel, William N. O'Neill
  • Publication number: 20120328456
    Abstract: A pump (800) for a beverage preparation machine (1) has: a pump inlet (810); a pump outlet (820); a liquid driver (815, 816) for pressurising and circulating a liquid from the pump inlet to the pump outlet; and a downstream pump conduit (870, 871, 872) connecting in fluid communication the liquid driver to the pump outlet. The downstream pump conduit comprises a liquid dampener (860) for dampening upstream the pump outlet vibrations in such liquid which are generated by the liquid driver so as to circulate via the pump outlet dampened pressurised liquid from the liquid driver.
    Type: Application
    Filed: March 4, 2011
    Publication date: December 27, 2012
    Applicant: NESTEC S.A.
    Inventors: Rainer Maisch, Gilles Gavillet
  • Publication number: 20120315163
    Abstract: A hydraulically driven pump with driving pressure controlled within a predetermined range. The hydraulically driven pump has a driving-fluid port fluidly coupled to a compressed air source and ambient, a driven-fluid inlet port fluidly connected to a tank, and a driven-fluid outlet port. A pressure sensor is used for providing sensing values indicative to the driving pressure in the hydraulically driven pump, and the driving pressure is controlled in closed loop by releasing and filling air through the driving-fluid port. The hydraulically driven pump has a suction stroke, in which driven fluid is refilled into the pump, and a pressing stroke, in which driven fluid is pressed out. A hydraulic buffer is used to provide driving pressure during a suction stroke and two hydraulically driven pumps can work alternately in providing continuous pressure control.
    Type: Application
    Filed: June 13, 2012
    Publication date: December 13, 2012
    Inventors: Mi Yan, Baohua Qi
  • Publication number: 20120308411
    Abstract: The present invention is directed to a water pump that may be easily constructed from inexpensive parts and materials and that is powered by the water source from which the water to be pumped is drawn. In a preferred embodiment, two pairs of lever arms located on opposite sides of the pump are alternately filled with water from the source and then emptied causing the lever arms to alternately ascend and descend. As the lever arms ascend and descend, they alternately fill and then compress a pair of pistons causing water to be pumped to an outlet of the pump. Water from the emptied lever arms may preferably be returned to the source, thus minimizing any impact of the pump on the environment and downstream users of the water source.
    Type: Application
    Filed: June 2, 2011
    Publication date: December 6, 2012
    Inventors: Joost Brender A. Brandis, Jeffrey Lynn McKay
  • Publication number: 20120282116
    Abstract: The invention concerns a subsea pumping system that comprises an reciprocating pump such as a membrane pump or a hose pump. The motive fluid for the pump is obtained from one of the well fluids which is pressurized in a separate stage.
    Type: Application
    Filed: October 29, 2010
    Publication date: November 8, 2012
    Applicant: FMC Kongsberg Subsea AS
    Inventor: Leif Arne Tønnessen
  • Publication number: 20120219433
    Abstract: There is described an apparatus (1) and a method to facilitate a hydrostatic pressure increase in a fluid flowing in a first pipe (22), where the hydrostatic pressure increase is provided by means of a pumping device (3) being supplied with energy, the apparatus including: —an energy harvester (5) arranged to be able to draw a portion of an energy carried by a fluid flowing in a second pipe (28); and —a mechanical or hydraulic energy transfer device (9, 60) arranged to be able to transfer a portion of the energy absorbed by the energy harvester (5) to the pumping device (3).
    Type: Application
    Filed: October 22, 2010
    Publication date: August 30, 2012
    Inventor: Trond Melhus
  • Patent number: 8246826
    Abstract: The present invention generally relates to hemodialysis and similar dialysis systems, including a variety of systems and methods that would make hemodialysis more efficient, easier, and/or more affordable. One aspect of the invention is generally directed to new fluid circuits for fluid flow. In one set of embodiments, a hemodialysis system may include a blood flow path and a dialysate flow path, where the dialysate flow path includes one or more of a balancing circuit, a mixing circuit, and/or a directing circuit. Preparation of dialysate by the preparation circuit, in some instances, may be decoupled from patient dialysis. In some cases, the circuits are defined, at least partially, within one or more cassettes, optionally interconnected with conduits, pumps, or the like. In one embodiment, the fluid circuit and/or the various fluid flow paths may be at least partially isolated, spatially and/or thermally, from electrical components of the hemodialysis system.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 21, 2012
    Assignee: DEKA Products Limited Partnership
    Inventors: Michael J. Wilt, Jason A. Demers, Kevin L. Grant, Brian Tracey, James D. Dale
  • Patent number: 8241015
    Abstract: The invention refers to a linear compressor, comprising: a shell (20); a cylinder (30) affixed to the shell (20) and defining a compression chamber (C); a piston (40) to be displaced in reciprocating movement in the interior of the compression chamber (C) during the operation of the compressor; a linear electric motor (50) mounted to the shell (20); and an actuating means (60) operatively coupling the piston (40) to the linear electric motor (50), in order to make the latter displace the piston (40) in a reciprocating movement in the interior of the compression chamber (C), the actuating means (60) being coupled to the piston (40) by an elastic means (70), so that the actuating means (60) and the piston (40) be displaced in phase opposition during the operation of the compressor.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: August 14, 2012
    Assignee: Whirlpool S.A.
    Inventors: Dietmar Erich Bernhard Lillie, Egidio Berwanger, Raul Bosco, Jr., Emerson Moreira, Davi Luis Goergen, Fabricio Caldeira Possamai