Positively Actuated Vane Patents (Class 418/259)
  • Patent number: 10253775
    Abstract: It is intended to provide a vacuum pump so that without upsizing the vacuum pump, noise and vibration are reduced, heat dissipation property is secured, and the casing is downsized. Therefore, at least one turning part is provided in an exhausting path formed in a casing body. The casing body is formed of a material whose thermal conductivity is higher than that of a rotor and vanes, and a cylinder part where the vanes slide is press fitted in the casing body.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: April 9, 2019
    Assignee: NABTESCO AUTOMOTIVE CORPORATION
    Inventors: Yoshihiro Mitsuhashi, Katsunori Tanaka, Hiroyuki Murakami, Kouji Takahashi, Taku Kawakami, Ichiro Minato
  • Patent number: 10227979
    Abstract: A vane fluid pump for a vehicle component has an inner rotor supported within a cam ring. A series of vanes is positioned within a series of slots in an inner rotor to define and separate a series of non-uniformly sized segmented pumping chambers to disrupt harmonics during operation to reduce pressure ripples and associated tonal noise. One chamber has a first sector angle being within a first predetermined range of a nominal value. A portion of the chambers each has a sector angle greater than the first sector angle, with an average sector angle greater than the nominal value by a second predetermined range. A remaining portion of the chambers each has a sector angle less than the first sector angle, with an average sector angle less than the nominal value by the second predetermined range.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: March 12, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Abdelkrim Zouani, Gabriela Dziubinschi, Vidya Marri, Simon Antonov
  • Patent number: 10138888
    Abstract: A rotor for a vane cell pump—in particular, for a vacuum pump—with a base body that is made of plastic and can be driven by rotation, and that rotates about an axis of rotation during operation, wherein the base body comprises a guiding section for slidably receiving a pump vane and wherein the base body is flanked in the direction of the axis of rotation by a first bearing surface and a second bearing surface, wherein the second bearing surface comprises bearing sections that are at a distance from one another and that lie on a circular path that is arranged concentrically to the axis of rotation.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: November 27, 2018
    Assignee: Joma-Polytec GmbH
    Inventors: Hans-Peter Ott, Bernd Hess, Martin Thoma, Thomas Gulde, Torsten Helle, Freidhelm Pfitzer
  • Patent number: 10107100
    Abstract: A vane cell machine includes a housing, rotor, curved ring, spring, and pressure piece. The rotor is configured to rotate about a rotation axis and includes a plurality of plate-like wings that are radially displaceable. The curved ring surrounds the rotor and delimits a movement path of the wings. Each pair of adjacent plate-like wings delimits a corresponding operating chamber. The housing surrounds and enables displacement of the curved ring. The spring is positioned between the curved ring and the housing, is pretensioned, and is configured to load the curved ring. The pressure piece is positioned between the spring and the curved ring, and sealingly abuts the housing and the curved ring so as to delimit a first and second pressure chamber from each other. The housing and the curved ring further delimit the first and second pressure chambers.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: October 23, 2018
    Assignee: Robert Bosch GmbH
    Inventor: Gerd Gaisser
  • Patent number: 10041492
    Abstract: A fluid pump includes a housing, a rotary shaft, and pump units which are contained in the housing and sucks in, pressurizes, and discharges fluid with being rotationally driven by the rotary shaft. The housing has a suction passage conducting the fluid from a suction port to the pump unit, a discharge passage conducting the fluid from the pump unit to a discharge port, a return passage returning a portion of the fluid flowing through the discharge passage to an upstream side of the pump unit, and a control valve controlling a flow of the returned fluid. The return passage is formed so as to conduct the returned fluid in the same direction as a flow of a sucked fluid flowing through the suction passage to make the returned fluid flow together with the sucked fluid.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: August 7, 2018
    Assignee: MIKUNI CORPORATION
    Inventors: Takehiko Naiki, Hiroyuki Oda, Yuya Kaiho
  • Patent number: 9518581
    Abstract: A shaft is fitted in a shaft fitting concave part to provide a structure such that no shaft penetrates through a rotor, so that an inner space (shaft fitting concave part, and hollow parts) and an outer space (pump chamber) of the rotor are made independent. The inner space of the rotor is communicated with outside to be at a low pressure, and the outer space is at a high pressure due to gas compression, and an upper surface of the rotor slides on an inner wall surface of a rotor housing part with pressed against this inner wall surface by a pressure difference.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: December 13, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventor: Satoshi Nakagawa
  • Patent number: 9145939
    Abstract: The invention relates to a subassembly for a brake actuator which is provided for an electromechanically operated parking brake. The subassembly comprises a drive device and gear device for generating and transmitting a torque to a brake device and a fixing element which secures the arrangement of the gear device relative to the drive device, an internal-toothed wheel of the gear device being integrated in the fixing element.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: September 29, 2015
    Assignee: Lucas Automotive GmbH
    Inventor: Wilfried Giering
  • Publication number: 20150110661
    Abstract: Durability of a vacuum pump is prevented from degrading by suppressing abrasion of a rotor and a side plate. The vacuum pump has a hollow cylinder chamber S having an opening at an end portion of a casing body, a rotor which is rotationally driven in the cylinder chamber S, a side plate for blocking the opening of the cylinder chamber S, and a pump cover which is disposed at the opposite side to the rotor so as to sandwich the side plate between the pump cover and the rotor, and the side plate is provided with an intercommunication port which confronts a shaft hole of the rotor and intercommunicates with a space between the side plate and the pump cover.
    Type: Application
    Filed: May 21, 2013
    Publication date: April 23, 2015
    Applicant: Nabtesco Automotive Corporation
    Inventor: Katsunori Tanaka
  • Patent number: 9011125
    Abstract: A vane pump includes at least one vane, a pump housing with a bottom and a lid, and a rotor rotatably mounted in the pump housing, with the at least one vane being slidingly mounted in a groove in the rotor and having at least one vane tip which protrudes from the outer peripheral surface of the rotor and rests upon the inner peripheral surface of the pump housing so that the vane defines with the bottom and the lid an intake chamber and a pressure chamber to respectively interact with a radially outer inlet opening and outlet opening in the bottom and/or in the lid, wherein the rotor is provided on the peripheral edge with a chamfer in facing relationship to the housing bottom and/or the housing lid having the inlet opening and/or outlet opening.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: April 21, 2015
    Assignee: Joma-Polytec GmbH
    Inventors: Dirk Ehrenfeld, Willi Schneider, Torsten Helle
  • Publication number: 20150078948
    Abstract: An oil pump includes a rotor, an outer peripheral member accommodating the rotor, a first plate, and a second plate. A discharge passage through which hydraulic fluid is discharged is connected to a discharge port of the first plate. A first pressure gradually-changing groove and a second pressure gradually-changing groove are formed such that a second flow passage area is larger than a first flow passage area, the first flow passage area being a flow passage area of the first pressure gradually-changing groove of the first plate, at a position at which the first pressure gradually-changing groove communicates with a transfer chamber passing through a sealed region, and the second flow passage area being a flow passage area of the second pressure gradually-changing groove of the second plate, at a position at which the second pressure gradually-changing groove communicates with the transfer chamber passing through the sealed region.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Applicant: JTEKT Corporation
    Inventors: Naohito YOSHIDA, Kazuhiro Watanabe
  • Publication number: 20150071808
    Abstract: A pump comprises a housing having an inner contour wall defining a fluid chamber. A rotor mechanism is positioned within the fluid chamber and comprises a belt and a rotatable rotor assembly. The belt is mounted to the rotor assembly. A movement imparting assembly imparts a rotational movement to the rotor assembly. The belt engages the inner contour wall during rotation. The housing includes intake and outtake ports in communication with the fluid chamber providing for intake of fluid therein and exhaust of fluid therefrom.
    Type: Application
    Filed: October 12, 2012
    Publication date: March 12, 2015
    Inventors: Marc-Alexandre Curodeau, Benoit Allen, Remi Hudon, Jimmy Laflamme Laroche
  • Publication number: 20150064042
    Abstract: In a gas compressor, an outline shape of an inner peripheral surface (41) of a cylinder (40) is set such that in a point before a compression chamber (43B) adjacent to a compression chamber (43A) in the upstream side in the rotational direction (W) is exposed to a discharge hole (45b) of a primary discharge portion (45) with rotation of a rotor (50) in the rotational direction (W) (point where the compression chamber (43B) is positioned upstream of an angular position of being exposed to the discharge hole (45b) of the primary discharge portion (45)), a pressure of the refrigerant gas (G) inside the compression chamber (43) reaches a discharge pressure. Therefore the discharge hole (45b) of the primary discharge portion (45) always discharges a refrigerant gas (G) from the compression chamber (43) to prevent generation of the discharge pulsation.
    Type: Application
    Filed: March 28, 2013
    Publication date: March 5, 2015
    Inventors: Hirotada Shimaguchi, Kouji Hirono, Masahiro Tsuda, Tatsuya Osaki, Shizuma Kaneko
  • Patent number: 8959949
    Abstract: Provided is a drive shaft structure including: a drive shaft which transmits the drive force; and a seal member which is provided to come into close contact with the outer peripheral surface of the drive shaft. In the drive shaft structure, the drive shaft includes a second surface located closer to the inner side of the radial direction than the outer peripheral surface, and the second surface includes an index mark used to confirm information on the rotation of the drive shaft or information on the displacement thereof in the axial direction.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: February 24, 2015
    Assignee: IHI Corporation
    Inventors: Katsuya Fujisaku, Noriyasu Sugitani
  • Patent number: 8951027
    Abstract: The invention concerns a vane cell machine having a stator and a rotor that is made of a first material, the rotor having guides comprising radially displaceable vanes that rest on an inside of the stator and border work chambers at each axial end of the rotor together with the rotor, the stator and individual stationary side walls, the vanes having, at least at some contact faces with the rotor and the stator, a second material that interacts unfrictionally with the first material. It is endeavoured to keep the wear small. For this purpose, in a radially inner area, the side wall comprises a surface of a third material interacting unfrictionally with the first material and, in a radially outer area a surface made of the first material.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: February 10, 2015
    Assignee: Danfoss A/S
    Inventors: Hans Christian Petersen, Ove Thorboel Hansen, Lars Martensen, Palle Olsen, Erik Haugaard
  • Patent number: 8936452
    Abstract: A pump housing, in particular a vane cell pump housing, having a suction connection point, from which a suction channel emerges which opens with a suction-channel opening into a receiving chamber in the pump housing, and having a pressure connection point, from which a pressure channel emerges which opens at a pressure-channel opening into the receiving chamber. The invention is distinguished by the fact that the suction connection point, the pressure connection point, the suction-channel opening and/or the pressure-channel opening are/is arranged in such a way that a minimum level of a conveying fluid which is present in the receiving chamber is not undershot in different installation situations.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: January 20, 2015
    Assignee: Ixetic Bad Homburg GmbH
    Inventors: Viktor Refenius, Rolf Popelka
  • Patent number: 8905738
    Abstract: An example revolving vane expander includes a cylinder. A rotor is housed within the cylinder to establish a working chamber between the cylinder and the rotor. The rotor is eccentrically mounted relative to the cylinder. A vane is secured to the cylinder or the rotor. The vane is slidably receivable within a slot established in the other of the cylinder or the rotor. The vane is configured to link rotational movement of the cylinder and the rotor.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: December 9, 2014
    Assignee: Nanyang Technological University
    Inventors: Alison Subiantoro, Ken Shaun Yap, Kim Tiow Ooi
  • Patent number: 8905737
    Abstract: A revolving vane compressor comprising: a cylinder having a cylinder longitudinal axis of rotation, a rotor mounted within the cylinder and having a rotor longitudinal axis of rotation, the rotor longitudinal axis and the cylinder longitudinal axis being spaced from each other for relative movement between the rotor and the cylinder; a vane operatively engaged in a slot for causing the cylinder and the rotor to rotate together, the vane being mounted in the slot with a two degree-of-freedom motion relative to the slot for enabling the rotor and the cylinder to rotate with each other.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: December 9, 2014
    Assignee: Nanyang Technological Univerity
    Inventors: Kim Tiow Ooi, Yong Liang Teh
  • Patent number: 8894395
    Abstract: A front housing configuring a scroll compressor is provided in its shaft hole with a first bearing, and the front housing rotatably supports a rotation shaft. The first bearing includes a ball bearing having a plurality of balls. First and second seal rings and are provided between an outer ring fixed to the front housing and an inner ring which abuts against an outer peripheral surface of the rotation shaft. A first seal ring disposed on the side of one side surface of the outer ring is provided such that the first seal ring is in non-contact with the inner ring, and the second seal ring disposed on the side of the other side surface of the outer ring abuts against the inner ring.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: November 25, 2014
    Assignee: Keihin Corporation
    Inventors: Yusuke Nishimura, Kazuaki Higuchi, Satsuki Muraoka, Hiroki Kuwata
  • Patent number: 8858206
    Abstract: A pendulum-slide cell pump may include a rotationally mounted inner rotor connected via pendulum-slides with an outer rotor and wherein the outer rotor may be configured to transfer rotational movement of the outer rotor to the inner rotor via the pendulum-slides.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 14, 2014
    Assignee: Mahle International GmbH
    Inventors: Christian Richter, Mark Tepler
  • Publication number: 20140248173
    Abstract: A pump comprises a housing having an inner contour wall defining a fluid chamber. A rotor mechanism is positioned within the fluid chamber and comprises a belt and a rotatable rotor assembly. The belt is mounted to the rotor assembly. A movement imparting assembly imparts a rotational movement to the rotor assembly. The belt engages the inner contour wall during rotation. The housing includes intake and outtake ports in communication with the fluid chamber providing for intake of fluid therein and exhaust of fluid therefrom.
    Type: Application
    Filed: October 12, 2012
    Publication date: September 4, 2014
    Applicant: Gullivert Technologies Inc.
    Inventors: Marc-Alexandre Curodeau, Benoit Allen, Remi Hudon, Jimmy Laflamme Laroche
  • Publication number: 20140241927
    Abstract: A vane pump (1) includes: a front side vane case (40), a rear side vane case (50), a pump housing (60), a pump cover (70), a drive shaft (30), a rotationally driven rotor (10), and vanes (20) provided in slot sections (13), wherein engaging groove sections and guide protrusions (46, 52), which engaging one another, are provided in the vanes (20), the front side vane case (40) and the rear side vane case (50), the engaging groove sections and guide protrusions (46, 52) are composed in such a manner that the vanes (20) move following a proximal inner peripheral surface (42b) in a state where the vane is proximate to the proximal inner peripheral surface (42b), in accordance with rotation of the rotor (10), and pump chambers are demarcated by the vanes (20) situated in proximity with the proximal inner peripheral surface (42b).
    Type: Application
    Filed: October 18, 2011
    Publication date: August 28, 2014
    Applicant: TBK Co., Ltd.
    Inventor: Yuta Kobayashi
  • Patent number: 8807972
    Abstract: Housingless positive displacement pump assembly comprises one or more vane or gerotor type housingless positive displacement pump units, each comprising pump unit components. One or more retaining rods extend through axially aligned holes in a mounting flange at one end of the pump assembly and the pump unit components to hold the pump unit components in stacked relation to one another and connect the pump assembly to the mounting flange.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: August 19, 2014
    Assignee: Hydro-Aire Inc.
    Inventors: Michael A. Reighard, Daniel T. DePauw, David A. Sedlak
  • Patent number: 8807974
    Abstract: A split discharge vane pump is disclosed having a pump body that includes an interior pumping chamber having a central axis and defining a continuous peripheral cam surface, the cam surface including four quadrantal cam segments, wherein diametrically opposed cam segments have identical cam profiles, and each cam segment defines an inlet arc, a discharge arc and two seal arcs. A rotor is mounted for axial rotation within the pumping chamber and a plurality of circumferentially spaced apart radially extending vanes are mounted for radial movement within the rotor, wherein the plurality of vanes define an equal number of circumferentially spaced apart buckets which extend between the rotor and the cam surface of the pumping chamber for carrying pressurized fluid.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: August 19, 2014
    Assignee: Triumph Engine Control Systems, LLC
    Inventors: Paul J. Paluszewski, Mihir C. Desai, Xingen Dong
  • Publication number: 20140219853
    Abstract: A vane for a vane cell device comprising a stator and a rotor rotatably arranged in the stator with a plurality of guide grooves in each of which a vane can be movably mounted along a direction of movement. The vane has a high-pressure side, and a low-pressure side facing the high-pressure side, for fluid conveyed or flowing through a workspace of the vane cell device. The vane has a first side wall formed on the high-pressure side and a second side wall formed on the low-pressure side, wherein the first and second side wall are connected to each other by a plurality of ribs forming lateral limits of fluid channels. The first and second side wall are offset relative to each other so that the high-pressure side is only partially covered by the first side wall, and the low-pressure side is only partially covered by the second side wall.
    Type: Application
    Filed: January 30, 2014
    Publication date: August 7, 2014
    Applicant: SAETA GMBH & CO. KG
    Inventor: Eggert Bülk
  • Patent number: 8794255
    Abstract: The subject invention described herein is directed to an improved fluid powered system for dispensing a selectively variable proportion of additives into a primary fluid supply line such as is commonly encountered in the firefight industry where it is desirable to proportion foam concentrates into a water line. The subject invention features a water driven motor that is integral to a variable displacement additive pump. A proportioning adjustment allows the solution % to be adjusted. Once set, the additive percent varies in direct proportion to the water flow rate in order to maintain a nearly constant solution percentage over a broad flow range.
    Type: Grant
    Filed: August 18, 2012
    Date of Patent: August 5, 2014
    Inventor: Dennis Wayne Crabtree
  • Publication number: 20140170010
    Abstract: The present invention relates to a vane rotary compressor in which, while a rotor is rotating, the volume of a compressing chamber is reduced and a fluid such as a refrigerant is compressed. The vane rotary compressor according to one embodiment of the present invention is provided with the compressing chamber, the inner circumferential surface of which is formed in the shape of an involute curve, wherein the rotor is hinge-coupled with a plurality of cantilever vanes such that compression efficiency is high and noise is prevented from occurring during the operation of the compressor.
    Type: Application
    Filed: July 20, 2012
    Publication date: June 19, 2014
    Applicant: Halla Visteon Climate Control Corp.
    Inventors: Jung Myung Kwak, Seon Joo Hong, Kweon Soo Lim, In Cheol Shin
  • Patent number: 8740592
    Abstract: An adjustable vane cell pump is provided having a rotor, which includes, but is not limited to bearing slots extending in radial direction, in which cane plates displaceable relative to the bearing slots are arranged. The vane cell pump further includes, but is not limited to an adjustable slide having a substantially cylindrical inner surface. The rotor is configured in order to driveably rotate about a rotary axis within the slide. The vane plates bear against the inner surface of the slide, and the slide further includes, but is not limited to a first and a second areal end face, as well as recesses, which outer-circumferentially extend parallel to the end faces.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: June 3, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Georg Zwickler, Herbert Schmitz
  • Patent number: 8733316
    Abstract: The invention is an internal combustion engine converting the fuel/air mixture (17) to energy, comprising at least one engine having at least one engine cover (2), at least one external piston (5) having geared rotary ducts and providing the combustion and compression volumes inside said engine body (1), having fuel/air mixture (17) and exhaust gas (18) discharge openings (4.1), one internal piston (7) which rotates inside said internal piston space (6) and compresses the fuel/air mixture (17) sucked in through the suction opening (6.1) behind it and pumps this into the external piston inner space (4) and an external piston (5) rotating in the opposite direction.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: May 27, 2014
    Inventor: Yilmaz Yasar Tuncer
  • Publication number: 20140102402
    Abstract: A rotary internal combustion engine includes an outer housing and an inner housing defining an enclosure therebetween, and first and second side housings disposed on opposite sides of the outer housing. At least one of the outer and inner housings is rotatable relative to the other and at least two barriers are disposed in the enclosure and divide the enclosure into a combustion chamber and an exhaust chamber. At least one barrier is rotatable relative to at least one other barrier and at least one barrier comprises a retractable barrier mounted along a pivot axis and is pivotable between an extended position and a retracted position. An intake port, exhaust port, and ignition source are also provided. The rotary internal combustion engine further includes an intake opening formed in one of the side housings. The intake opening is intermittently fluidly communicating with the combustion chamber through the intake port.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 17, 2014
    Inventor: Scott HUDSON
  • Patent number: 8689765
    Abstract: The invention comprises a rotary engine method and apparatus configured with a cap seal. A cap seal restricts fuel flow from a fuel compartment to a non-fuel compartment and/or fuel flow between fuel chambers, such as between a reference expansion chamber and any of an engine: rotor, vane, housing, and/or a leading or trailing expansion chamber. Means for providing cap sealing force to seal the cap against a rotary engine housing element comprise one or more of: a spring force, a magnetic force, a deformable seal force, and a fuel force. The dynamic caps ability to track a noncircular path are particularly beneficial for use in a rotary engine having an offset rotor and with a non-circular inner rotary engine compartment having engine wall cut-outs and/or build-ups. The dynamic sealing forces further provide cap sealing forces over a range of temperatures, pressures, fuel flow rates, and operating engine rotation rates.
    Type: Grant
    Filed: April 2, 2011
    Date of Patent: April 8, 2014
    Inventor: Merton W. Pekrul
  • Patent number: 8684714
    Abstract: An orbital engine with a first outer generally tubular body with a first axis, and a second generally tubular inner orbiter body with a second axis, the second inner body being moveable within the first outer body. The first and second axes are parallel, but not colinear. The second inner body revolves, but does not rotate, within the first outer body Vanes extending generally radially relative to both the inner and outer bodies define multiple chambers in the space between the outside of the inner body and the inside of the outer body. The vanes reciprocate relative to both the inner and outer bodies, and no vane traverses the entire inner surface of the outer body. When fitted with ports in the outer body and valves, the orbital engine may be implemented as an internal combustion engine, gas compressor, liquid pump, air motor, blower, fan or turbine, etc.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: April 1, 2014
    Inventor: Frank W. Leonard
  • Patent number: 8672658
    Abstract: A fluid vane pump having a housing with a generally cylindrically walled control volume with an inlet and outlet. A rotor is provided having a rotatable axis within the cylindrical wall control volume. The rotor has a plurality of radially movable vanes operating with the cylindrical wall. A single vane ring is provided which operates with the rotor having an outer radial surface contacting the inner radial edges of the vanes.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: March 18, 2014
    Assignee: SLW Automotive Inc.
    Inventor: Douglas G. Hunter
  • Publication number: 20140044583
    Abstract: Damage of a rotor and a side plate are suppressed with a simple construction to prevent reduction in durability of a vacuum pump. A casing manufacturing method comprises a step (step S2) of disposing a cylinder liner forming a cylinder chamber in a mold, and casting a casing main body integrally with the cylinder liner by using molten metal, and a step (step S3) of processing an intercommunication hole and an exhaust hole so that the intercommunication hole and the exhaust hole penetrate through both the cylinder liner and the casing main body together and intercommunicate with the cylinder chamber.
    Type: Application
    Filed: February 10, 2012
    Publication date: February 13, 2014
    Applicant: NABTESCO AUTOMOTIVE CORPORATION
    Inventors: Yoshihiro Mitsuhashi, Shinichi Kusanagi
  • Patent number: 8647088
    Abstract: A rotary engine is described including: (1) a rotor located within a housing, the rotor configured with a plurality of rotor vane slots; (2) a vane separating an interior space between the rotor and the housing into at least a trailing chamber and a leading chamber, where the vane slidingly engages a rotor vane slot; (3) a first conduit within the rotor configured to communicate a first flow between the trailing chamber and the rotor vane slot; and (4) a lower trailing vane seal affixed to the vane, the lower trailing vane seal configured to valve the first conduit with rotation of the rotor. Optionally, a second conduit within the rotor is configured to communicate a second flow between the trailing chamber and the first conduit. Optionally, movement of the vane valves one or more additional fuel flow paths as a function of rotation of the rotor.
    Type: Grant
    Filed: February 20, 2011
    Date of Patent: February 11, 2014
    Inventor: Merton W. Pekrul
  • Patent number: 8636488
    Abstract: A hydraulic motor or pump (2) that generates a relatively high torque, and further allows an unprecedented high specific displacement that makes the motor suitable yaw motor for large wind turbines of horizontal axis wind turbines or wheel yaw motor on Heavy Carriers. The characteristic by the hydraulic motor or pump (2) is that if the number of barriers in the annular cavity (12) of engine or pump is n then the number of radial displaceable sliders (20) will be larger than (n+1).
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: January 28, 2014
    Assignee: Liftra ApS
    Inventor: Per E. Fenger
  • Patent number: 8613610
    Abstract: A variable displacement pump includes a pump structural member configured to change volumes of a plurality of working chambers by rotation of a rotor, so as to introduce oil through an inlet port into the working chambers and to discharge the oil through a discharge port, and further configured to oscillate a cam ring by a discharge pressure introduced into a control oil chamber. A first coil spring is provided to force the cam ring in a direction for increasing of a rate of change of the working-chamber volume. A second coil spring is provided to force the cam ring in a direction for decreasing of the rate of change of the working-chamber volume. The first and second coil springs are laid out on both sides of an arm portion of the cam ring in a manner so as to be opposed to each other.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: December 24, 2013
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Koji Saga, Hideaki Ohnishi, Yasushi Watanabe
  • Patent number: 8608465
    Abstract: Positive-displacement auxiliary pumping systems for use in pump apparatus of different configurations are disclosed. The positive-displacement auxiliary pumping systems are included in positive-displacement rotary pumps having a casing defining a pumping cavity, an inlet port connected to the pumping cavity, a discharge port connected to the pumping cavity, and a positive-displacement auxiliary pumping port connected to the pumping cavity. Pumping elements move within the pumping cavity of the casing and define a collapsing pocket that maintains fluid communication with the positive-displacement auxiliary pumping port after the collapsing pocket is no longer in fluid communication with the discharge port.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: December 17, 2013
    Assignee: Peopleflo Manufacturing, Inc.
    Inventor: Jason M. Sexton
  • Patent number: 8602760
    Abstract: A vane compressor according to the present invention, including a cylinder which is approximately cylindrical and whose both ends located in an axial direction are open, a cylinder head and a frame which close both the ends of the cylinder, a rotor shaft which includes a rotor part being cylindrical and rotating in the cylinder and a shaft part transmitting torque to the rotor part, and a vane which is installed in the rotor part and whose tip portion has the R-shape facing outward, performs the compression operation in the state where the normal to the R-shape of the tip portion of the vane and the normal to the inner surface of the cylinder are always approximately coincident with each other.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: December 10, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hideaki Maeyama, Shinichi Takahashi, Shin Sekiya, Tetsuhide Yokoyama, Hideto Nakao, Tatsuya Sasaki, Hirotsugu Hayashi
  • Patent number: 8597003
    Abstract: A lubrication system for a power transmission device includes a variable displacement vane pump including a moveable control ring for varying the displacement of the pump. A linear actuator directly acts on the control ring for moving the control ring between maximum and minimum pump displacement positions. The linear actuator includes an electric motor for rotating a drive member. The drive member engages a driven actuator shaft to cause linear translation of the actuator shaft in response to rotation of the drive member. A control system includes a controller for signaling the actuator to extend or retract the actuator shaft to vary the pump displacement.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: December 3, 2013
    Assignee: Magna Powertrain Inc.
    Inventors: Peter Krug, Vasilios B. Liavas, Gurvinder Bhogal
  • Patent number: 8579613
    Abstract: A vane pump includes a housing defining a pump chamber; a rotor rotatably arranged in the pump chamber; and a motor to rotate the rotor. An imaginary plane is defined to bisect the pump chamber in an axis direction. The housing has a first inlet port and a second inlet port located symmetrical with each other with respect to the imaginary plane, and the housing has a first outlet port and a second outlet port located symmetrical with each other with respect to the imaginary plane.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: November 12, 2013
    Assignee: Denso Corporation
    Inventors: Mitsuyuki Kobayashi, Tomohiro Itoh
  • Publication number: 20130266466
    Abstract: A blade-type fluid transmission device includes a rotor eccentrically located in the room of a stator and the outer periphery of the rotor is tangent to the inner periphery of the room. At least one blade is pivotably connected to stator and movably inserted in at least one slot of the rotor. The distal end of the at least one blade is in contact with the inner periphery of the room so as to form a space for receiving fluid between the outer periphery of the rotor and the inner periphery of the room. The contact between the at least one blade and the inner periphery of the room increases the efficiency for transmitting fluid which enters into the stator from an inlet and leaves from the stator from an outlet.
    Type: Application
    Filed: July 23, 2012
    Publication date: October 10, 2013
    Inventors: Gene-Huang Yang, Shun-Ji Yang
  • Publication number: 20130251584
    Abstract: A variable displacement pump includes: a discharge opening formed at a position to confront a discharge region; a back pressure introduction groove formed on the suction region side; and a discharge side thin wall portion which is formed in the second housing, which has a recessed shape opened to the outside, which is disposed on the discharge region side, which is overlapped with the rotor in the radial direction, and which includes a smallest thickness portion having a smallest wall thickness of thicknesses each of which is an axial length between a bottom surface of the recessed shape and an axially inner side surface of the second housing, the smallest wall thickness being a smallest wall thickness of axial thicknesses of the second housing.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 26, 2013
    Applicant: HITACHI AUTOMOTIVE SYSTEMS STEERING, LTD.
    Inventor: Hiroki IMANAGA
  • Patent number: 8523547
    Abstract: An engine is described for operation on a fuel expanding about adiabatically in a power stroke of the engine. To aid the power stroke efficiency, the rotary engine contains one or more of a rotor configured to rotate in a stator, the rotor offset along both an x-axis and a y-axis relative to a center of the stator, a vane configured to span a distance between the rotor and the stator, where the inner wall of the stator further comprises at least one of: a first cut-out in the housing at the initiation of the power stroke, use of a build-up in the housing at the end of the power stroke, and/or use of a second cut-out in the housing at the completion of rotation of the rotor in the engine. The engine yields a cross-sectional area expanding during a portion of the power stroke at about the Fibonacci ratio.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: September 3, 2013
    Inventor: Merton W. Pekrul
  • Patent number: 8517708
    Abstract: A fuel pump includes an impeller and a cover. The impeller includes a ring portion, which is annular and is placed radially outward of blades. The cover has an arcuate pump flow passage. An enlarged space is formed in a cover side slide surface of the cover. The enlarged space is communicated with the pump flow passage and has an axial gap size, which is axially measured between an axial bottom surface of the enlarged space and an axial end surface of the ring portion and is larger than that of an axial slide gap between the slide surface and the axial end surface of the ring portion.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: August 27, 2013
    Assignee: Denso Corporation
    Inventors: Atsushige Kobayashi, Yoshitaka Wakamatsu
  • Publication number: 20130216419
    Abstract: A vane pump includes at least one vane, a pump housing with a bottom and a lid, and a rotor rotatably mounted in the pump housing, with the at least one vane being slidingly mounted in a groove in the rotor and having at least one vane tip which protrudes from the outer peripheral surface of the rotor and rests upon the inner peripheral surface of the pump housing so that the vane defines with the bottom and the lid an intake chamber and a pressure chamber to respectively interact with a radially outer inlet opening and outlet opening in the bottom and/or in the lid, wherein the rotor is provided on the peripheral edge with a chamfer in facing relationship to the housing bottom and/or the housing lid having the inlet opening and/or outlet opening.
    Type: Application
    Filed: July 27, 2011
    Publication date: August 22, 2013
    Inventors: Dirk Ehrenfeld, Willi Schneider, Torsten Helle
  • Patent number: 8480386
    Abstract: The invention relates to a vane for a vane pump, in particular a vane vacuum pump, having a crucible-shaped housing and provided with a rotor mounted eccentrically and rotatably in the housing, wherein the vane is displaceably mounted perpendicular to the axis of rotation in the rotor and the free ends thereof are in contact with the interior circumferential surface of the housing, wherein the vane has a closed surface, at least in the sections protruding beyond the rotor, in the direction of the interior circumferential surface, and the surface is formed by an exterior wall, which is provided with a coating, wherein the coating is provided with perforations in the area located inside the rotor.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: July 9, 2013
    Assignee: Joma-Polytec GmbH
    Inventor: Willi Schneider
  • Patent number: 8454335
    Abstract: A vane compressor has a plurality of vanes that are radially translatable and have outer ends. The vanes create zones between each pair of adjacent vanes, each zone having a given area. The vane compressor also has an axis about which the vanes rotate and an outlet for expelling compressed fluid. A first zone immediately following a second zone, which is in register with the outlet, has the same area as the second zone.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: June 4, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Charles Shepard
  • Patent number: 8439662
    Abstract: A vane air motor configured to prevent uneven wear of vanes is provided. The vane air motor has a cylindrical member having a rotor chamber (19) defined by a circular cylindrical inner peripheral surface (11), and a vaned rotor. A plurality of air discharge openings (50) are provided over a predetermined length range in the axial direction of the rotor chamber. Each pair of axially adjacent air discharge openings are spaced from each other and overlap each other as seen in the circumferential direction of the rotor chamber.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: May 14, 2013
    Assignee: Nitto Kohki Co., Ltd.
    Inventor: Takashi Nakajoh
  • Patent number: 8425206
    Abstract: A pump insert of a vane-type pump having no dedicated housing, the insert being inserted in a gear housing.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: April 23, 2013
    Assignee: ixetic Bad Homburg GmbH
    Inventors: Kerstin Rosenkranz, Matthias Wendt
  • Patent number: 8419396
    Abstract: An upper casing receives a rotor, which is rotated by a drive force of a motor. The upper casing includes a pump chamber, which receives the rotor, a planar surface portion, which is formed around an opening of the pump chamber, and a through hole. A lower casing includes a planar surface portion, which is formed around the opening of the pump chamber, and a through hole. The lower casing closes the opening of the pump chamber to form the pump chamber in cooperation with the upper casing. A resilient sheet is placed between the lower casing and a mount portion of the motor and includes a through hole. A screw is received through the through holes of the upper casing, the lower casing and the resilient sheet to securely connect the upper casing, the lower casing and the resilient sheet to the mount portion. A lower casing side surface of the resilient sheet includes a plurality of primary protrusions.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: April 16, 2013
    Assignee: Denso Corporation
    Inventors: Taiki Yasuzaka, Mitsuyuki Kobayashi, Hitoshi Amano