Multiple Units Patents (Class 418/199)
  • Patent number: 11772486
    Abstract: A portal gear box assembly effective to lift and change the gear ratio of a wheel of an off-road vehicle includes a housing, an input gear sub-assembly, an output gear sub-assembly, and an idler gear sub-assembly effective for linking the input gear to the output gear. The input gear sub-assembly includes an input gear, the output gear sub-assembly includes an output gear, and the idler gear sub-assembly includes at least one idler gear and at least one removable adaptor effective for holding the idler gear in either a first position or a second position different from the first position. The sub-assemblies may also include bearings to facilitate movement of the gears.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: October 3, 2023
    Assignee: Super ATV, LLC
    Inventors: Jordan E. Stephan, Justin L. Eaton, Jason Stewart
  • Patent number: 10876768
    Abstract: A screw compressor for a heating, ventilation, and air conditioning (HVAC) system. The screw compressor includes a housing having an inlet end and an outlet end for refrigerant to pass into and out of the housing. A motor is within the housing. A plurality of screw sets are arranged about the motor. The screw sets receive refrigerant entering through the inlet, compress the refrigerant between meshed rotors of the plurality of screw sets, and direct refrigerant out of the housing through the outlet end of the housing.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 29, 2020
    Assignee: DENSO International America, Inc.
    Inventor: Sean Schoneboom
  • Patent number: 10508562
    Abstract: A gas turbine engine has a fan rotor, a turbine rotor driving the fan rotor, and an epicyclic gear reduction positioned between the fan rotor and the turbine rotor. The epicyclic gear reduction includes a ring gear, a sun gear, and no more than four intermediate gears that engage the sun gear and the ring gear. The fan drive turbine is configured to drive the sun gear to, in turn, drive the ring gears to, in turn, drive the fan rotor.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: December 17, 2019
    Assignee: United Technologies Corporation
    Inventors: Frederick M. Schwarz, William G. Sheridan, Michael E. McCune, Gabriel L. Suciu
  • Patent number: 9616868
    Abstract: An internal gear pump, in particular a hydraulic pump for a slip-controlled vehicle braking system, is configured to be pre-assembled. The internal gear pump includes a cartridge configured as a casing, which is configured to be inserted in a receptacle in a hydraulic block of a vehicle braking system.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: April 11, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Harald Speer, Rene Schepp, Edgar Kurz, Norbert Alaze
  • Patent number: 9440179
    Abstract: Oxygen concentrator apparatus and method of use are described herein. The oxygen concentration may include at least one canister; gas separation adsorbent disposed in at least one canister, and a compression system. The compression system may include at least one compressor coupled to the at least one canister. The compressor may include a first rotor comprising at least two projections and a second rotor comprising at least two recesses. During rotation of the first and second rotors, gas moves through the compressor to at least one of the canisters. In the canisters, gas separation adsorbent may separate at least some nitrogen from air produce oxygen enriched gas.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: September 13, 2016
    Assignee: InovaLabs, LLC
    Inventors: William R. Wilkinson, Dragan Nebrigic
  • Patent number: 9371000
    Abstract: A transmission includes provisions to mount two accessory drive units and to transmit power to the accessory drive units from an engine. The accessories are driven by an accessory drive gear that is coupled to a torque converter impeller as opposed to a turbine such that power is provided to the accessories regardless of the selected gear state or vehicle speed. The accessory drive gear also transmits power to an off-axis transmission pump. In one embodiment, power is transferred to the accessories via idler gears that is supported by the transmission housing and is present even when no accessory is installed. In another embodiment, the idler gear is supported by the accessory drive unit and is only present when the accessory is installed.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: June 21, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Gregory Daniel Goleski, Jeffrey Edward Maurer, Laurence Andrew Deutsch
  • Patent number: 9028233
    Abstract: A rotary piston pump equipped with a motor having two counter-rotating rotary pistons. The two rotary pistons are housed in an oval pump housing. The two rotary pistons are arranged on a first output shaft and a second output shaft. The first output shaft and the second output shaft are driven and synchronized via at least one elastic element.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: May 12, 2015
    Assignee: NETZSCH-Pumpen & Systeme GmbH
    Inventors: Hans Juergen Linde, Bernhard Murrenhoff, Robert Kurz, Reinhard Denk, Josef Strassl, Thomas Boehme, Hisham Kamal, Stefan Weigl, Roger Willis, Stefan Kern, Johann Kreidl, Gunter Herr, Franz Kneidl, Mikael Tekneyan, Erwin Weber, Marcel Verhoeven, Mathias Gradl, Udo Enderle
  • Patent number: 8740595
    Abstract: A gear pump includes: a first pump constructed from a first drive gear rotated by driving of a drive shaft and a first driven gear rotatably arranged coaxially with a rotary shaft; and a second pump constructed from a second drive gear rotatably provided coaxially with the rotary shaft and a second driven gear. The rotary shaft allows the first driven gear and the second drive gear to engage with and disengage from each other in a rotation direction by movement to an axial direction. When the discharge pressure is higher than predetermined pressure, rotation of the first driven gear is not transmitted to the second drive gear and only the first pump operates. When the discharge pressure becomes the predetermined pressure or less, the rotation of the first driven gear is transmitted to the second drive gear and the first and the second pumps operate.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: June 3, 2014
    Assignee: Honda Motor Co., Ltd
    Inventor: Yuuichi Hidaka
  • Publication number: 20140079581
    Abstract: The present invention relates to a rotor for a vacuum pump having a roots pumping mechanism, the rotor comprising at least two hollow lobes, each lobe having an outer wall which defines a lobe profile, a hollow cavity generally inward of the outer wall, and at least one strengthening rib located in the cavity to resist stress on the lobes generated during rotation.
    Type: Application
    Filed: April 23, 2012
    Publication date: March 20, 2014
    Applicant: EDWARDS LIMITED
    Inventors: Nigel Paul Schofield, Stephen Dowdeswell
  • Patent number: 8316874
    Abstract: A fluid metering or pumping device includes multiple pumping or metering elements that are connected so that they all operate together, moving in the same direction and at the same speed. The multiple pumping or metering elements are intended for use at high pressures where the strain from the pressure might distort the walls of the elements, and interfere with their pumping or metering accuracy. These elements are enclosed in, but preferably not directly connected to a pressure vessel that would contain the high operating pressure, leaving the pumping or metering element housings to only contain the pressure rise or fall that occurs within that element. The pumping or metering elements are connected to a support structure that also penetrates the pressure vessel, and contains an outlet port for that element. The pressure vessel connects the elements, and serves as an intake plenum for all of the elements.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: November 27, 2012
    Assignee: Roper Pump Company
    Inventor: William D. Flavelle
  • Patent number: 8118579
    Abstract: A pump comprises a driving rotor and a driven rotor that are positioned in a housing such that, as the driving rotor and the driven rotor rotate, the teeth of the driving rotor and the teeth of the driven rotor mesh to form a positive displacement seal. The teeth of the driving rotor and the driven rotor are configured such that seals between the inlet side and the discharge side of the pump are formed between only the leading surfaces of the teeth of the driving rotor and the trailing surfaces of the teeth of the driven rotor.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: February 21, 2012
    Assignee: M&M Technologies, Inc.
    Inventor: James B. Klassen
  • Publication number: 20100322810
    Abstract: The invention relates to a pump assembly for the synchronous pressurization of two fluid circuits. Two internal gear pumps are disposed together in a pump housing and rotationally driven by drive shafts thereof. Pinions of the pumps are located in an associated pump chamber and engage in an internal gear thereof. The pump chambers of the internal gear pumps are separated from each other by a common separating wall or partition, which is designed as a separate housing part and engages in a hollow cross-section of a housing part forming the circumferential wall of one of the internal gear pumps. Suction channels and pressure channels associated with the internal gear pumps transition into a radially extending longitudinal section in the pump housing following an axial longitudinal section in the lateral boundary wall of the associated pump chamber. According to the invention, a suction channel and a pressure channel of one of the internal gear pumps are integrated in the separating wall.
    Type: Application
    Filed: September 26, 2008
    Publication date: December 23, 2010
    Inventors: Rene Schepp, Norbert Alaze
  • Publication number: 20100260638
    Abstract: A gear pump includes: a first pump constructed from a first drive gear rotated by driving of a drive shaft and a first driven gear rotatably arranged coaxially with a rotary shaft; and a second pump constructed from a second drive gear rotatably provided coaxially with the rotary shaft and a second driven gear. The rotary shaft allows the first driven gear and the second drive gear to engage with and disengage from each other in a rotation direction by movement to an axial direction. When the discharge pressure is higher than predetermined pressure, rotation of the first driven gear is not transmitted to the second drive gear and only the first pump operates. When the discharge pressure becomes the predetermined pressure or less, the rotation of the first driven gear is transmitted to the second drive gear and the first and the second pumps operate.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 14, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Yuuichi HIDAKA
  • Patent number: 7670122
    Abstract: A gerotor pump includes an outer rotor having a first toothed surface and lobes that extend inwards. An inner rotor is eccentrically aligned relative to the outer rotor and includes a second toothed surface and lobes that extend outwards. Planetary gears are located between the outer rotor and the inner rotor. Each planetary gear has a third toothed surface that intermeshes with the first toothed surface and the second toothed surface.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: March 2, 2010
    Assignees: ArvinMeritor Technology, LLC, Techco Corp.
    Inventors: Edward H. Phillips, Jeffrey M. Lloyd
  • Publication number: 20090142211
    Abstract: A circular, reversible steam powered engine configured to force pistons mounted in circular housing assembly and coupled to a main shaft to create a work load. The steam powered engine is arranged to pipe steam of a high pressure into steam chambers to force pistons forward and push exhaust steam of a low pressure out of steam chambers. Gears rotate and engage with pistons to start and stop steam flow into timing valves and steam flow portions. The engine creates a torque required to effectively operate many types of loads, such as those for vehicle and equipment applications.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 4, 2009
    Applicant: Torque Applications, Inc.
    Inventors: John Holden, Richard Rehlander
  • Publication number: 20090123302
    Abstract: A screw compressor comprising: a low pressure stage compressor body; a high pressure stage compressor body that further compresses a compressed air compressed by the low pressure stage compressor body; pinion gears for example, respectively, provided on, for example, a male rotor of the low pressure stage compressor body and, for example, a male rotor of the high pressure stage compressor body; a motor; a bull gear for example, provided on a rotating shaft of the motor; and an intermediate shaft supported rotatably and provided with a pinion gear, which meshes with the bull gear, and a bull gear, which meshes with the pinion gears. Thereby, it is possible to make the motor relatively low in rotating speed while inhibiting the gears from being increased in diameter, thus enabling achieving reduction in cost.
    Type: Application
    Filed: January 6, 2009
    Publication date: May 14, 2009
    Inventors: Hitoshi Nishimura, Tomoo Suzuki, Hiroshi Ohta
  • Patent number: 6981855
    Abstract: A mobile drilling rig includes a platform mounted on drivable ground supports. Drilling equipment is disposed on the platform and is operated by a power system that includes hydraulic pumps, a screw type air compressor, and a motor for driving the pumps and the compressor. A gearbox is common to the hydraulic pumps and the air compressor and includes an intermeshing gear arrangement for transmitting an inputted power from the motor to the pumps and the compressor. Compressed air from the compressor travels to an air reservoir in which compressor oil is separated from the air. The compressor oil is conducted to an oil inlet of the gearbox and is circulated through the gearbox to an oil outlet of the gearbox which communicates with an air inlet of the compressor.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: January 3, 2006
    Assignee: Sandvik AB
    Inventor: Jarmo Leppanen
  • Patent number: 6814045
    Abstract: There is provided a rotary internal combustion engine (20) comprising a plurality of rotors (21) each having a plurality of lobes (22) for intermeshing with lobes of other rotors to form successive combustion chambers. Axial seal elements (60, 61) are provided at the rotor tips and trailing tips of the rotors respectively. Circumferential axial edge seals (59) are also provided to interconnect the axial seals. The seals engage sealing plates (30) on each axial side of an engine housing (29) so as to effect the combustion chambers. Fuel inlets and ignition means are provided at suitable locations, as are exhaust means.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: November 9, 2004
    Inventor: Roy Masters
  • Patent number: 6540493
    Abstract: The invention is related to a series gear pump for differing output volumes with at least two gear pumps, each gear pump comprises at least two intermeshing displacing elements, a first displacing element and a second displacing element in the form of gears. The individual gear pumps of the series comprise a substantially identical dimensions for the axial interval between the theoretical axes and between the theoretical axes of rotation of the two displacing elements, and a substantially identical gearing width in the form of a substantially identical axial extension of the gearing elements. The individual gear pumps differ from each other at least as regards the size of the tip circle diameter of at least one of the two displacing elements.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: April 1, 2003
    Assignee: Vohn Turbo GmbH & Company KG
    Inventor: Tillman Körner
  • Patent number: 6478560
    Abstract: A multiple-module, oil-flooded, rotary screw compressor wherein a plurality of compressor modules are driven by a single drive shaft. The modules are positioned in parallel so that a large volume of compressed air can be provided for use in equipment which continuously requires a large supply of such air. The compressor is configured so that each rotary screw compressor module includes a driven gear engaged with the same gear on the drive shaft. The compressor modules may share a common inlet cavity and a common outlet cavity.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: November 12, 2002
    Assignee: Ingersoll-Rand Company
    Inventor: James L. Bowman
  • Patent number: 5004407
    Abstract: A method of scavenging air and oil from a component (3) of an aircraft for returning the oil to a reservoir (4) for recirculation to the component involves the use of a gear pump (1) for scavenging the oil and gas. The gear pump centrifugally separates oil from the air and returns only the separated oil to the reservoir through outlets located upstream of the mesh zone of the gears while the air is discarded whereby lower discharge pressure of the gear pump is attained and there is no longer a need for a separate air-oil separator.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: April 2, 1991
    Assignee: Sundstrand Corporation
    Inventor: Richard M. Hutchison
  • Patent number: 4831825
    Abstract: A device for feeding energy to a cylinder rotationally mounted on a stationary machine part includes a hydraulic pump disposed in the cylinder, and a transmission device located between the stationary machine part and the hydraulic pump, the transmission device being engageable with the hydraulic pump at a drive side thereof for driving the pump.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: May 23, 1989
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Willi Jeschke
  • Patent number: 4134713
    Abstract: A reversible reduction gear motor which is driven by a pressurized fluid such as air or a liquid is provided having a hollow recoil rotor, which engages a drive motor and which is mounted rotatably on a shaft which extends through the recoil rotor. This shaft, which extends through the recoil rotor, has a reduction gear mounted on one end which engages a pinion mounted on one end of the shaft of the drive rotor. The other end of the shaft, which extends through the recoil motor, has a pinion mounted on it which engages a second reduction gear, the axis of rotation of which is coincident with the axis of rotation of the drive rotor. The driving fluid is supplied by conduits disposed within the motor and is controlled so that it can be supplied to drive the rotors in either a forward or reverse direction.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: January 16, 1979
    Assignee: S.O.M.M.O.S.
    Inventor: Jean D. E. Binaut
  • Patent number: 4068984
    Abstract: A screw compressor has at least two pairs of compressor rotors arranged in series, the outside diameter of the rotors of the two pairs being substantially the same, and the ratio of the outside diameter to the diameter at the base of the rotor teeth or vanes of the second pair being such that the capacity of the rotors corresponds to the intake volume of fluid to be compressed flowing from the first to the second pair of rotors.
    Type: Grant
    Filed: December 3, 1974
    Date of Patent: January 17, 1978
    Assignee: H & H Licensing Corporation
    Inventor: Walter G. Spindler