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with vanes reciprocating with respect to the inner member

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  • F04C18/344
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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 F04C18/00Rotary-piston pumps specially adapted for elastic fluids

Current Industry

F04C18/344with vanes reciprocating with respect to the inner member
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Vane rotary compressor with pressure reducing member inserted into...
    • Patent number 11,971,032
    • Issue date Apr 30, 2024
    • LG Electronics Inc.
    • Kiyoul Noh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 11,927,190
    • Issue date Mar 12, 2024
    • SCHWÄBISCHE HÜTTENWERKE AUTOMOTIVE GMBH
    • Thomas Tontsch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuuming device and vacuum apparatus
    • Patent number 11,905,958
    • Issue date Feb 20, 2024
    • Hong Wang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pumping assembly, compressor and air conditioning equipment
    • Patent number 11,898,562
    • Issue date Feb 13, 2024
    • Gree Electric Appliances, Inc. of Zhuhai
    • Yusheng Hu
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary compressor having improved vane chattering performance
    • Patent number 11,891,995
    • Issue date Feb 6, 2024
    • LG Electronics Inc.
    • Seseok Seol
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary slide assembly, and method for monitoring the wear of a slid...
    • Patent number 11,873,814
    • Issue date Jan 16, 2024
    • Gebr. Becker GmbH
    • Stefan Beierlein
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane pump
    • Patent number 11,873,815
    • Issue date Jan 16, 2024
    • HELLA GMBH & CO. KGAA
    • Sascha Bruemmer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump with an oil management system
    • Patent number 11,852,143
    • Issue date Dec 26, 2023
    • FIELDPIECE INSTRUMENTS, INC.
    • Tinggui Hong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable capacity compressor operation mode determination method an...
    • Patent number 11,808,261
    • Issue date Nov 7, 2023
    • Gree Electric Appliances, Inc. of Zhuhai
    • Hua Liu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston limiting structure, compressor, and heat exchange apparatus
    • Patent number 11,788,530
    • Issue date Oct 17, 2023
    • GREE ELECTRIC APPLICANCES, INC. OF ZHUHAI
    • Yusheng Hu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,773,854
    • Issue date Oct 3, 2023
    • LG Electronics Inc.
    • Sedong Lee
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil-lubricated rotary vane vacuum pump
    • Patent number 11,767,845
    • Issue date Sep 26, 2023
    • Gebr. Becker GmbH
    • Artjom Kraft
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hermetic compressor including an intermediate plate having a curved...
    • Patent number 11,754,071
    • Issue date Sep 12, 2023
    • LG Electronics Inc.
    • Seokhwan Moon
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid compressor
    • Patent number 11,746,784
    • Issue date Sep 5, 2023
    • Chong Du Cho
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,746,783
    • Issue date Sep 5, 2023
    • LG Electronics Inc.
    • Seseok Seol
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor with unequally spaced vane slots
    • Patent number 11,732,584
    • Issue date Aug 22, 2023
    • LG Electronics Inc.
    • Jonghun Lee
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method of pumping in a system of vacuum pumps and system of vacuum...
    • Patent number 11,725,662
    • Issue date Aug 15, 2023
    • Ateliers Busch SA
    • Didier Müller
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane compressor with an improved lubrication system
    • Patent number 11,713,759
    • Issue date Aug 1, 2023
    • ING. ENEA MATTEI S.P.A.
    • Giulio Contaldi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary vane pump
    • Patent number 11,680,566
    • Issue date Jun 20, 2023
    • Pinnacle Climate Technologies, Inc.
    • Sukru Erisgen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Electric priming pump device
    • Patent number 11,674,516
    • Issue date Jun 13, 2023
    • Joshua J. McPherson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Sealing arrangement
    • Patent number 11,668,300
    • Issue date Jun 6, 2023
    • TOCIRCLE INDUSTRIES AS
    • Arne Høeg
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Fluid working systems
    • Patent number 11,655,816
    • Issue date May 23, 2023
    • Danfoss Power Solutions GmbH & Co. OHG
    • Elliott Gruber
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane rotary compressor
    • Patent number 11,644,035
    • Issue date May 9, 2023
    • LG Electronics Inc.
    • Joonhong Park
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane rotary compressor
    • Patent number 11,619,230
    • Issue date Apr 4, 2023
    • LG Electronics Inc.
    • Joonhong Park
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • 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

    Multi-stage rotary vane pump
    • Patent number 11,592,024
    • Issue date Feb 28, 2023
    • LEYBOLD GMBH
    • Jean-Francois Aubert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,566,621
    • Issue date Jan 31, 2023
    • LG Electronics Inc.
    • Kiyoul Noh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,530,612
    • Issue date Dec 20, 2022
    • LG Electronics Inc.
    • Seokhwan Moon
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil supply to the back pressure groove of a vane pump
    • Patent number 11,519,270
    • Issue date Dec 6, 2022
    • Gree Electric Appliances, Inc. of Zhuhai
    • Jia Xu
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Gas pump with pressure relief for reducing the starting torque
    • Patent number 11,506,204
    • Issue date Nov 22, 2022
    • Schwabische Huttenwerke Automotive GmbH
    • Uwe Meinig
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    VACUUM PUMP WITH AN OIL MANAGEMENT SYSTEM
    • Publication number 20240110566
    • Publication date Apr 4, 2024
    • Fieldpiece Instruments, Inc.
    • Tinggui Hong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY VANE VACUUM PUMP WITH GAS BALLAST ASSEMBLY
    • Publication number 20240077078
    • Publication date Mar 7, 2024
    • Leybold (Tianjin) International Trade Co Ltd
    • Li Ouyang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHOD FOR OPERATING A COMPRESSOR
    • Publication number 20240035473
    • Publication date Feb 1, 2024
    • Haier US Appliance Solutions, Inc.
    • Joseph Wilson Latham
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VALVELESS DEVICES FOR PULSATILE FLUID FLOW
    • Publication number 20240011485
    • Publication date Jan 11, 2024
    • Arizona Board of Regents on behalf of The University of Arizona
    • Marvin J. Slepian
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    COMPRESSOR, REFRIGERATION CYCLE DEVICE, AND AIR CONDITIONER
    • Publication number 20230366593
    • Publication date Nov 16, 2023
    • Mitsubishi Electric Corporation
    • Kazuhiko BABA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20230349382
    • Publication date Nov 2, 2023
    • LG ELECTRONICS INC.
    • Jinung SHIN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Flange and Pump Body Assembly with Same
    • Publication number 20230332600
    • Publication date Oct 19, 2023
    • GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    • Mingzhu Dong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20230228270
    • Publication date Jul 20, 2023
    • LG ELECTRONICS INC.
    • SeSeok Seol
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20230184250
    • Publication date Jun 15, 2023
    • LG ELECTRONICS INC.
    • Bumdong SA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTISTAGE COMPRESSOR SYSTEM WITH INTERCOOLER
    • Publication number 20230144667
    • Publication date May 11, 2023
    • Mark W. Wood
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE ROTARY COMPRESSOR
    • Publication number 20230137074
    • Publication date May 4, 2023
    • LG ELECTRONICS INC.
    • Joonhong Park
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20230131102
    • Publication date Apr 27, 2023
    • LG ELECTRONICS INC.
    • Sedong LEE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20230125736
    • Publication date Apr 27, 2023
    • LG ELECTRONICS INC.
    • Jinung Shin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20230088672
    • Publication date Mar 23, 2023
    • LG ELECTRONICS INC.
    • Seseok SEOL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    X-RAY INSPECTION APPARATUS, X-RAY INSPECTION SYSTEM, IMAGE MANAGEME...
    • Publication number 20230046611
    • Publication date Feb 16, 2023
    • Omron Corporation
    • Hironori KASAHARA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE ROTARY COMPRESSOR
    • Publication number 20230047035
    • Publication date Feb 16, 2023
    • LG ELECTRONICS INC.
    • Kiyoul NOH
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP FOR EVAPORATIVE EMISSIONS SYSTEM
    • Publication number 20220403801
    • Publication date Dec 22, 2022
    • Stoneridge Control Devices, Inc
    • Robert James Steinman
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    ROTARY SLIDE ASSEMBLY, AND METHOD FOR MONITORING THE WEAR OF A SLID...
    • Publication number 20220356880
    • Publication date Nov 10, 2022
    • Gebr. Becker GmbH
    • Stefan BEIERLEIN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMPING SYSTEM HAVING AN OIL-LUBRICATED VACUUM PUMP
    • Publication number 20220235772
    • Publication date Jul 28, 2022
    • Agilent Technologies, Inc.
    • Roberto Carboneri
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE PUMP
    • Publication number 20220196014
    • Publication date Jun 23, 2022
    • HELLA GmbH & Co. KGaA
    • Sascha BRUEMMER
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    VANE PUMP
    • Publication number 20220178369
    • Publication date Jun 9, 2022
    • KYB Corporation
    • Kouhei KUBO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLUID COMPRESSOR
    • Publication number 20220170463
    • Publication date Jun 2, 2022
    • Chong Du CHO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUMING DEVICE AND VACUUM APPARATUS
    • Publication number 20220170464
    • Publication date Jun 2, 2022
    • Hong WANG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LUBRICANT RECEPTACLE
    • Publication number 20220145887
    • Publication date May 12, 2022
    • LEYBOLD FRANCE S.A.S.
    • Patrick Fournier
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    OIL-LUBRICATED ROTARY VANE VACUUM PUMP
    • Publication number 20220099093
    • Publication date Mar 31, 2022
    • Gebr. Becker GmbH
    • Artjom KRAFT
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE ROTARY COMPRESSOR
    • Publication number 20220034318
    • Publication date Feb 3, 2022
    • LG ELECTRONICS INC.
    • Joonhong PARK
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMPING ASSEMBLY, COMPRESSOR AND AIR CONDITIONING EQUIPMENT
    • Publication number 20220034323
    • Publication date Feb 3, 2022
    • GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    • Yusheng HU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HERMETIC COMPRESSOR
    • Publication number 20220025886
    • Publication date Jan 27, 2022
    • LG ELECTRONICS INC.
    • Seokhwan MOON
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20220003235
    • Publication date Jan 6, 2022
    • LG Electronics Inc.
    • Seseok SEOL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY-VANE MECHANISM FOR ENGINES AND COMPRESSORS
    • Publication number 20210396231
    • Publication date Dec 23, 2021
    • Vladimir Shapovalov
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES