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the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation

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  • CPC
  • F04C2/3441
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS F04C2/00Rotary-piston machines or pumps

Current Industry

F04C2/3441the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Flange and pump body assembly with same
    • Patent number 12,152,584
    • Issue date Nov 26, 2024
    • Gree Electric Appliances, Inc. of Zhuhai
    • Mingzhu Dong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement oil pump including swing member
    • Patent number 11,905,948
    • Issue date Feb 20, 2024
    • Hitachi Astemo, Ltd.
    • Koji Saga
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary pump comprising an adjusting device
    • Patent number 11,873,812
    • Issue date Jan 16, 2024
    • Schwabische Huttenwerke Automotive GmbH
    • Moritz Raatschen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable oil pump
    • Patent number 11,668,299
    • Issue date Jun 6, 2023
    • Hyundai Motor Company
    • DongHoon Kang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane cell pump
    • Patent number 11,603,838
    • Issue date Mar 14, 2023
    • Schwabische Huttenwerke Automotive GmbH
    • Uwe Meinig
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vane pump
    • Patent number 11,428,222
    • Issue date Aug 30, 2022
    • Denso Corporation
    • Keiichirou Ishihara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Cartridge vane pump and pump device
    • Patent number 11,231,033
    • Issue date Jan 25, 2022
    • KYB Corporation
    • Masamichi Sugihara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mass supply system
    • Patent number 11,166,470
    • Issue date Nov 9, 2021
    • GEA FOOD SOLUTIONS BAKEL B.V.
    • Hendrikus Petrus Gerardus Van Gerwen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vane pump driven by an engine of an automobile
    • Patent number 11,149,730
    • Issue date Oct 19, 2021
    • Taiho Kogyo Co., Ltd.
    • Ken Nakamuta
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pump and system for supplying a consumer
    • Patent number 11,098,714
    • Issue date Aug 24, 2021
    • HANON SYSTEMS EFP DEUTSCHLAND GMBH
    • Ante Bodrozic
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement-type oil pump
    • Patent number 10,947,972
    • Issue date Mar 16, 2021
    • HITACHI AUTOMOTIVE SYSTEMS, LTD.
    • Atsushi Naganuma
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Two-stage variable-displacement oil pump
    • Patent number 10,746,173
    • Issue date Aug 18, 2020
    • Myunghwa Ind. Co., Ltd.
    • Hyuneu Jung
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotor and vane with insert
    • Patent number 10,731,465
    • Issue date Aug 4, 2020
    • Torad Engineering LLC
    • John Montgomery
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary vane device having magnet arranged in rotor and stator
    • Patent number 10,612,544
    • Issue date Apr 7, 2020
    • AZAMOUR INVESTMENT CORPORATION INCORPORATED C/O OCRA ARABIA FZC
    • Michael John David Spencer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump unit with integrated piston pump and electric motor
    • Patent number 10,598,177
    • Issue date Mar 24, 2020
    • Power Packer North America, Inc.
    • Marcel Gerardus Maria Nieuwenhuis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Integrated pressure plate and port plate for pump
    • Patent number 10,422,335
    • Issue date Sep 24, 2019
    • EATON INTELLIGENT POWER LIMITED
    • Martin A. Clements
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scalable hydraulic motor with drive input shaft and driven output s...
    • Patent number 10,233,925
    • Issue date Mar 19, 2019
    • James D. Sutton
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Reverse vane engine extracting work from hot gas entering an engine...
    • Patent number 10,119,399
    • Issue date Nov 6, 2018
    • Brian Lee Davis
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement vane pump with integrated fail safe function
    • Patent number 10,030,656
    • Issue date Jul 24, 2018
    • STACKPOLE INTERNATIONAL ENGINEERED PRODUCTS, LTD.
    • Ralph Valkenberg
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Low-pulse vane pumps
    • Patent number 10,018,197
    • Issue date Jul 10, 2018
    • Hamilton Sundstrand Corporation
    • Mark F. Franzen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump device
    • Patent number 9,989,160
    • Issue date Jun 5, 2018
    • Hitachi Automotive Systems, Ltd.
    • Jun Soeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Noise-reduction mechanism for oil pump
    • Patent number 9,989,059
    • Issue date Jun 5, 2018
    • Ford Global Technologies, LLC
    • Ahsanul Karim
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mass supply system
    • Patent number 9,949,493
    • Issue date Apr 24, 2018
    • GEA FOOD SOLUTIONS BAKEL B.V.
    • Hendrikus Petrus Gerardus Van Gerwen
    • A21 - BAKING EDIBLE DOUGHS
  • Information Patent Grant

    Vehicle hydraulic supply apparatus
    • Patent number 9,938,973
    • Issue date Apr 10, 2018
    • Aisin AW Co., Ltd.
    • Masashi Kito
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Vane pump
    • Patent number 9,926,930
    • Issue date Mar 27, 2018
    • Danfoss A/S
    • Erik Haugaard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane pump unit
    • Patent number 9,810,216
    • Issue date Nov 7, 2017
    • Showa Corporation
    • Yoshihiro Tsukahara
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement rotary pump and displacement regulation method
    • Patent number 9,765,778
    • Issue date Sep 19, 2017
    • VHIT S.p.A.
    • Leonardo Cadeddu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane pump
    • Patent number 9,556,867
    • Issue date Jan 31, 2017
    • Hitachi Automotive Systems, Ltd.
    • Koji Saga
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vane pump including shaft fitting concave not to be penetrated
    • Patent number 9,518,581
    • Issue date Dec 13, 2016
    • Mitsubishi Electric Corporation
    • Satoshi Nakagawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement pump with double eccentric ring and displacem...
    • Patent number 9,404,495
    • Issue date Aug 2, 2016
    • VHIT S.p.A.
    • Leonardo Cadeddu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    CONSTANT-FLOW PULSELESS ROTARY-VANE-TYPE DISPLACEMENT MACHINE
    • Publication number 20240191711
    • Publication date Jun 13, 2024
    • Isao Hayase
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DEVICES AND METHODS FOR HANDLING A FLUID WORKING MEDIUM
    • Publication number 20230371377
    • Publication date Nov 16, 2023
    • Thilo Ittner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY PUMP
    • Publication number 20220403841
    • Publication date Dec 22, 2022
    • SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
    • Shoichi TAKADA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE OIL PUMP
    • Publication number 20220316472
    • Publication date Oct 6, 2022
    • Hyundai Motor Company
    • DongHoon Kang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE PUMP DEVICE
    • Publication number 20220106957
    • Publication date Apr 7, 2022
    • HITACHI ASTEMO, LTD.
    • Naoya TAGA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE CELL PUMP
    • Publication number 20210108634
    • Publication date Apr 15, 2021
    • SCHWABISCHE HUTTENWERKE AUTOMOTIVE GMBH
    • Uwe Meinig
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CARTRIDGE VANE PUMP AND PUMP DEVICE
    • Publication number 20210095664
    • Publication date Apr 1, 2021
    • KYB Corporation
    • Masamichi SUGIHARA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20200056612
    • Publication date Feb 20, 2020
    • LG ELECTRONICS INC.
    • Seseok SEOL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE PUMP
    • Publication number 20200018308
    • Publication date Jan 16, 2020
    • Taiho Kogyo Co., Ltd.
    • Ken NAKAMUTA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    TWO-STAGE VARIABLE-DISPLACEMENT OIL PUMP
    • Publication number 20190120227
    • Publication date Apr 25, 2019
    • MYUNGHWA IND. CO., LTD.
    • Hyuneu JUNG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Rotor and Vane with Insert
    • Publication number 20180371913
    • Publication date Dec 27, 2018
    • TORAD Engineering LLC
    • John Montgomery
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    ENGINE OIL PUMP
    • Publication number 20180291894
    • Publication date Oct 11, 2018
    • SABIC Global Technologies B.V.
    • Subhransu Sekhar MOHAPATRA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MASS SUPPLY SYSTEM
    • Publication number 20180213805
    • Publication date Aug 2, 2018
    • GEA FOOD SOLUTIONS BAKEL B.V.
    • Hendrikus Petrus Gerardus Van Gerwen
    • A21 - BAKING EDIBLE DOUGHS
  • Information Patent Application

    MASS SUPPLY SYSTEM
    • Publication number 20180213806
    • Publication date Aug 2, 2018
    • GEA FOOD SOLUTIONS BAKEL B.V.
    • Hendrikus Petrus Gerardus Van Gerwen
    • A21 - BAKING EDIBLE DOUGHS
  • Information Patent Application

    PUMP AND SYSTEM FOR SUPPLYING A CONSUMER
    • Publication number 20180180045
    • Publication date Jun 28, 2018
    • Magna Powertrain Bad Homburg GmbH
    • Ante BODROZIC
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY VANE DEVICE
    • Publication number 20180087506
    • Publication date Mar 29, 2018
    • AZAMOUR INVESTMENT CORPORATION INCORPORATED
    • MICHAEL JOHN DAVID SPENCER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP DEVICE
    • Publication number 20170268682
    • Publication date Sep 21, 2017
    • Hitachi Automotive Systems, Ltd.
    • Jun SOEDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VEHICLE HYDRAULIC SUPPLY APPARATUS
    • Publication number 20160230756
    • Publication date Aug 11, 2016
    • Aisin AW Co., Ltd.
    • Masashi KITO
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP WITH ELECTRIC CONTROL OF DISPLACEMENT RE...
    • Publication number 20160222963
    • Publication date Aug 4, 2016
    • VHIT S.P.A.
    • Leonardo Cadeddu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE PUMP
    • Publication number 20150110659
    • Publication date Apr 23, 2015
    • Hitachi Automotive Systems, Ltd.
    • Koji Saga
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MASS SUPPLY SYSTEM
    • Publication number 20140342072
    • Publication date Nov 20, 2014
    • Hendrikus Petrus Gerardus Van Gerwen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE PUMP
    • Publication number 20140178239
    • Publication date Jun 26, 2014
    • JTEKT Corporation
    • Yuki ASAOKA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DUAL OUTLET PUMP
    • Publication number 20130243620
    • Publication date Sep 19, 2013
    • Jaroslaw Lutoslawski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Oval Chamber Vane Pump
    • Publication number 20130202472
    • Publication date Aug 8, 2013
    • WindTrans Systems Ltd
    • Dan Patterson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ADJUSTABLE VANE PUMP FOR REDUCING PRESSURE PULSATIONS DURING DISCHARGE
    • Publication number 20130121863
    • Publication date May 16, 2013
    • FORD GLOBAL TECHNOLOGIES, L.L.C.
    • Holger Siebertz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT LUBRICANT PUMP
    • Publication number 20130071275
    • Publication date Mar 21, 2013
    • PIERBURG PUMP TECHNOLOGY GMBH
    • Matteo Gasperini
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ADJUSTABLE VANE CELL PUMP WITH A SLIDE COMPRISING RECESSES
    • Publication number 20120213654
    • Publication date Aug 23, 2012
    • GM GLOBAL TECHNOLOGY OPERATIONS LLC
    • Georg ZWICKLER
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    METERING PUMP WITH SPECIAL-SHAPED CAVITY
    • Publication number 20120164018
    • Publication date Jun 28, 2012
    • ZHEJIANG UNIVERSITY
    • Yang Lu
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Structure of Variable Oil Pump
    • Publication number 20120076683
    • Publication date Mar 29, 2012
    • Kia Motors Corporation
    • Jaepil LIM
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PRE-PRESSURIZATION PUMP LINER FOR VANE PUMP
    • Publication number 20120070327
    • Publication date Mar 22, 2012
    • Paul G. Dennis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...