TREA

the surfaces of the inner and outer member, forming the working space, being surfaces of revolution

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  • F04C18/3564
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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

F04C18/3564the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Compressor, air conditioner and method for assembling compressor
    • Patent number 12,163,521
    • Issue date Dec 10, 2024
    • GREEN REFRIGERATION EQUIPMENT ENGINEERING RESEARCH CENTER OF ZHUHAI GREE CO.,...
    • Mingzhu Dong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor and refrigeration system
    • Patent number 12,085,079
    • Issue date Sep 10, 2024
    • GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    • Bin Gao
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 12,031,539
    • Issue date Jul 9, 2024
    • Fujitsu General Limited
    • Ryo Akimoto
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor and refrigeration cycle apparatus
    • Patent number 12,025,130
    • Issue date Jul 2, 2024
    • TOSHIBA CARRIER CORPORATION
    • Takuya Hirayama
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor with first and second main suction ports
    • Patent number 12,000,401
    • Issue date Jun 4, 2024
    • Samsung Electronics Co., Ltd.
    • Hyolim Heo
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multistage compression system
    • Patent number 11,994,127
    • Issue date May 28, 2024
    • Daikin Industries, Ltd.
    • Daisuke Okamoto
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor and air conditioner
    • Patent number 11,976,657
    • Issue date May 7, 2024
    • Mitsubishi Electric Corporation
    • Kazuhiko Baba
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Single-stage enthalpy enhancing rotary compressor and air condition...
    • Patent number 11,971,038
    • Issue date Apr 30, 2024
    • Gree Electric Appliances, Inc. of Zhuhai
    • Guanghui Xia
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor including a plurality of recessed portions for re...
    • Patent number 11,959,480
    • Issue date Apr 16, 2024
    • Fujitsu General Limited
    • Hiroki Katayama
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor with an oil groove facing the vane and exposed to...
    • Patent number 11,933,305
    • Issue date Mar 19, 2024
    • Fujitsu General Limited
    • Shuhei Hoshino
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Two-cylinder rotary compressor with mufflers
    • Patent number 11,885,330
    • Issue date Jan 30, 2024
    • Fujitsu General Limited
    • Tatsuya Yasui
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor with an oil groove facing the vane and exposed to...
    • Patent number 11,885,334
    • Issue date Jan 30, 2024
    • Fujitsu General Limited
    • Shuhei Hoshino
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor including a plurality of recessed portions for re...
    • Patent number 11,879,459
    • Issue date Jan 23, 2024
    • Fujitsu General Limited
    • Hiroki Katayama
    • 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

    Rotary compressor including a bearing containing an asymmetrical po...
    • Patent number 11,703,055
    • Issue date Jul 18, 2023
    • LG Electronics Inc.
    • Jinung Shin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,655,817
    • Issue date May 23, 2023
    • LG Electronics Inc.
    • Sangmin Na
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Compressor having intermediate passage capable of conveying accumul...
    • Patent number 11,614,087
    • Issue date Mar 28, 2023
    • Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai
    • Sheng Chen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,578,724
    • Issue date Feb 14, 2023
    • LG Electronics Inc.
    • Seokhwan Moon
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Multi-stage compressor and air conditioner having a linkage between...
    • Patent number 11,560,892
    • Issue date Jan 24, 2023
    • GREEN REFRIGERATION EQUIPMENT ENGINEERING RESEARCH CENTER OF ZHUHAI GREE CO.,...
    • Dahao Wang
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary compressor having a combined vane-roller structure including...
    • Patent number 11,555,404
    • Issue date Jan 17, 2023
    • LG Electronics Inc.
    • Ki Sun Kim
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Motor-driven compressor
    • Patent number 11,486,395
    • Issue date Nov 1, 2022
    • Kabushiki Kaisha Toyota Jidoshokki
    • Yoshihiro Fukaya
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor and refrigeration cycle apparatus
    • Patent number 11,466,687
    • Issue date Oct 11, 2022
    • TOSHIBA CARRIER CORPORATION
    • Takuya Hirayama
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump body assembly, compressor and air conditioner
    • Patent number 11,460,028
    • Issue date Oct 4, 2022
    • ANHUI MEIZHI PRECISION MANUFACTURING CO., LTD.
    • Licheng Zheng
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,454,239
    • Issue date Sep 27, 2022
    • Fujitsu General Limited
    • Shuhei Hoshino
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,448,216
    • Issue date Sep 20, 2022
    • LG Electronics Inc.
    • Joonhong Park
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,408,425
    • Issue date Aug 9, 2022
    • Fujitsu General Limited
    • Shuhei Hoshino
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,371,506
    • Issue date Jun 28, 2022
    • Fujitsu General Limited
    • Shuhei Hoshino
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Two-stage compressor with a gas storage chamber between stages and...
    • Patent number 11,326,603
    • Issue date May 10, 2022
    • GREEN REFRIGERATION EQUIPMENT ENGINEERING RESEARCH CENTER OF ZHUHAI GREE CO.,...
    • Xiaofei Ye
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Dual cylinder rotary compressor with intermediate plate that flows...
    • Patent number 11,326,605
    • Issue date May 10, 2022
    • LG Electronics Inc.
    • Seungmock Lee
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane rotary compressor
    • Patent number 11,300,122
    • Issue date Apr 12, 2022
    • LG Electronics Inc.
    • Seokhwan Moon
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20210363991
    • Publication date Nov 25, 2021
    • LG ELECTRONICS INC.
    • Joonhong Park
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20210363990
    • Publication date Nov 25, 2021
    • LG Electronics Inc.
    • Jinung SHIN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MOTOR-DRIVEN COMPRESSOR
    • Publication number 20210301821
    • Publication date Sep 30, 2021
    • Kabushiki Kaisha Toyota Jidoshokki
    • Yoshihiro FUKAYA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20210301823
    • Publication date Sep 30, 2021
    • LG Electronics Inc.
    • Seokhwan MOON
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
    • Publication number 20210207601
    • Publication date Jul 8, 2021
    • Toshiba Carrier Corporation
    • Takuya Hirayama
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
    • Publication number 20210054842
    • Publication date Feb 25, 2021
    • Toshiba Carrier Corporation
    • Takuya Hirayama
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20210033094
    • Publication date Feb 4, 2021
    • FUJITSU GENERAL LIMITED
    • Shuhei HOSHINO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR HAVING A COMBINED VANE-ROLLER STRUCTURE
    • Publication number 20200408097
    • Publication date Dec 31, 2020
    • LG ELECTRONICS INC.
    • Ki Sun KIM
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    MULTI-STAGE COMPRESSOR AND AIR CONDITIONER HAVING THE SAME
    • Publication number 20200277957
    • Publication date Sep 3, 2020
    • GREEN REFRIGERATION EQUIPMENT ENGINEERING RESEARCH CENTER OF ZHUHAI GREE CO.,...
    • Dahao WANG
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20200208634
    • Publication date Jul 2, 2020
    • FUJITSU GENERAL LIMITED
    • Kenshi UEDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20200173439
    • Publication date Jun 4, 2020
    • FUJITSU GENERAL LIMITED
    • Kenshi UEDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR WITH GROOVE FOR SUPPLYING OIL
    • Publication number 20190234407
    • Publication date Aug 1, 2019
    • LG ELECTRONICS INC.
    • Joonhong PARK
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR HAVING TWO CYLINDERS
    • Publication number 20180291899
    • Publication date Oct 11, 2018
    • Panasonic Intellectual Property Management Co., Ltd.
    • HIROAKI NAKAI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR AND REFRIGERATING CYCLE DEVICE
    • Publication number 20180238596
    • Publication date Aug 23, 2018
    • Toshiba Carrier Corporation
    • Shinya Gotou
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Rotary Compressor With Vapor Injection System
    • Publication number 20180209423
    • Publication date Jul 26, 2018
    • Emerson Climate Technologies, Inc.
    • Kirill M. IGNATIEV
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20180135630
    • Publication date May 17, 2018
    • FUJITSU GENERAL LIMITED
    • Shingo YAHABA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR WITH LIQUID INJECTION COOLING
    • Publication number 20180106255
    • Publication date Apr 19, 2018
    • HICOR TECHNOLOGIES, INC.
    • Pedro SANTOS
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CYLINDER ROTARY COMPRESSOR
    • Publication number 20170350393
    • Publication date Dec 7, 2017
    • Denso Corporation
    • Hiroshi OGAWA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20170298936
    • Publication date Oct 19, 2017
    • FUJITSU GENERAL LIMITED
    • Akira INOUE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR
    • Publication number 20170218954
    • Publication date Aug 3, 2017
    • DAIKIN INDUSTRIES, LTD.
    • Kousuke NISHIMURA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20170218955
    • Publication date Aug 3, 2017
    • DAIKIN INDUSTRIES, LTD.
    • Kousuke NISHIMURA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20170175742
    • Publication date Jun 22, 2017
    • FUJITSU GENERAL LIMITED
    • Taku MORISHITA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR HAVING TWO CYLINDERS
    • Publication number 20170167487
    • Publication date Jun 15, 2017
    • Panasonic Intellectual Property Management Co., Ltd.
    • HIROAKI NAKAI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
    • Publication number 20170097176
    • Publication date Apr 6, 2017
    • Mitsubishi Electric Corporation
    • Koji YAMASHITA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR AND COMPRESSION UNIT THEREOF, AND AIR CONDITIONER
    • Publication number 20160305429
    • Publication date Oct 20, 2016
    • GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    • XINGBIAO ZHOU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR AND METHOD FOR PRODUCING COMPRESSOR
    • Publication number 20160273537
    • Publication date Sep 22, 2016
    • DAIKIN INDUSTRIES, LTD.
    • Takeo HAYASHI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20160138593
    • Publication date May 19, 2016
    • FUJITSU GENERAL LIMITED
    • Junya TANAKA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20160131137
    • Publication date May 12, 2016
    • FUJITSU GENERAL LIMITED
    • Yuji KOMAI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20160131135
    • Publication date May 12, 2016
    • FUJITSU GENERAL LIMITED
    • Junya TANAKA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ABUTMENT ROTARY PUMP WITH REPELLING MAGNETS
    • Publication number 20150275896
    • Publication date Oct 1, 2015
    • John McIntyre
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...