TREA

Means for improving or restricting lubricant flow

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  • F04C29/028
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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 F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00

Current Industry

F04C29/028Means for improving or restricting lubricant flow
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary compressor
    • Patent number 12,305,642
    • Issue date May 20, 2025
    • LG Electronics Inc.
    • Minho Lee
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor
    • Patent number 12,286,971
    • Issue date Apr 29, 2025
    • LG Electronics Inc.
    • Minho Lee
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor having bulged bushings
    • Patent number 12,258,965
    • Issue date Mar 25, 2025
    • Taiho Kogyo Co., Ltd.
    • Ukyo Ishiguro
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor with direct return of oil from an oil separator i...
    • Patent number 12,247,567
    • Issue date Mar 11, 2025
    • Sanden International (Europe) GmbH
    • Manuel Wagner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll electric compressor
    • Patent number 12,241,468
    • Issue date Mar 4, 2025
    • Kabushiki Kaisha Toyota Jidoshokki
    • Yuya Hattori
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Scavenge loss limiter for a rotary compressor
    • Patent number 12,215,692
    • Issue date Feb 4, 2025
    • Ingersoll-Rand Industrial U.S., Inc.
    • Taylor Stratman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor and refrigeration device
    • Patent number 12,196,203
    • Issue date Jan 14, 2025
    • Daikin Industries, Ltd.
    • Katsumi Katou
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor
    • Patent number 12,173,709
    • Issue date Dec 24, 2024
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Kazuya Sato
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pumping system having a plurality of positive displacement v...
    • Patent number 12,173,712
    • Issue date Dec 24, 2024
    • Agilent Technologies, Inc.
    • Christian Spada
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump body assembly and fluid machine
    • Patent number 12,158,139
    • Issue date Dec 3, 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 with selective oil communication
    • Patent number 12,146,493
    • Issue date Nov 19, 2024
    • LG Electronics Inc.
    • Sungwon Jung
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Sliding component
    • Patent number 12,135,030
    • Issue date Nov 5, 2024
    • Eagle Industry Co., Ltd.
    • Hiroshi Suzuki
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor with oil supply groove
    • Patent number 12,135,031
    • Issue date Nov 5, 2024
    • Samsung Electronics Co., Ltd.
    • Sunghea Cho
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor having a plurality of branch paths with intersects...
    • Patent number 12,123,413
    • Issue date Oct 22, 2024
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kotaro Chiba
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Rotary compressor
    • Patent number 12,123,414
    • Issue date Oct 22, 2024
    • LG Electronics Inc.
    • Joonhong Park
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Liquid-cooled rotary compressor and coolant supply method therefor
    • Patent number 12,123,411
    • Issue date Oct 22, 2024
    • Hitachi, Ltd.
    • Nae Hisano
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 12,110,894
    • Issue date Oct 8, 2024
    • LG Electronics Inc.
    • Jinung Shin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotor assembly, compressor and air conditioner
    • Patent number 12,092,105
    • Issue date Sep 17, 2024
    • Gree Electric Appliances, Inc. of Zhuhai
    • Zhongkeng Long
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor having lubrication system
    • Patent number 12,078,173
    • Issue date Sep 3, 2024
    • Copeland LP
    • Stephen M. Seibel
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll-compressor, refrigeration device, and vehicle with oil separ...
    • Patent number 12,071,952
    • Issue date Aug 27, 2024
    • ANHUI WELLING AUTO PARTS CO., LTD.
    • Guobiao Jiang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Aerostatic thrust bearing and method of aerostatically supporting a...
    • Patent number 12,065,934
    • Issue date Aug 20, 2024
    • TRANE INTERNATIONAL INC.
    • Jay H. Johnson
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Baffle plate for compressor, compressor, and refrigeration apparatus
    • Patent number 12,049,897
    • Issue date Jul 30, 2024
    • GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    • Yang Li
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor
    • Patent number 12,025,127
    • Issue date Jul 2, 2024
    • LG Electronics Inc.
    • Jungsun Choi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor and air-conditioner
    • Patent number 12,025,133
    • Issue date Jul 2, 2024
    • HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
    • Tsutomu Nozaki
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Damping system for compressor
    • Patent number 12,018,689
    • Issue date Jun 25, 2024
    • Tyco Fire & Security GmbH
    • Joseph Woodrow Pillis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electric compressor bearing oil communication aperture
    • Patent number 11,994,130
    • Issue date May 28, 2024
    • Mahle International GmbH
    • Jonathan Hammond
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor including grooved discharge and bypass valve arra...
    • Patent number 11,982,275
    • Issue date May 14, 2024
    • LG Electronics Inc.
    • Suchul Kim
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor and refrigeration device with an oil return channel havi...
    • Patent number 11,971,036
    • Issue date Apr 30, 2024
    • GUANGDONG MEIZHI PRECISION-MANUFACTURING CO., LTD.
    • Yang Li
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Drive shaft of compressor having oil groove portion and oil sump
    • Patent number 11,971,037
    • Issue date Apr 30, 2024
    • Daikin Industries, Ltd.
    • Eiji Kumakura
    • 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...

Patents Applicationslast 30 patents

  • Information Patent Application

    DRIVE MEMBER FOR SCROLL COMPRESSOR, AND SCROLL COMPRESSOR
    • Publication number 20250084844
    • Publication date Mar 13, 2025
    • DANFOSS (TIANJIN) LTD.
    • Yusong SUN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL COMPRESSOR
    • Publication number 20250067265
    • Publication date Feb 27, 2025
    • DANFOSS (TIANJIN) LTD.
    • Yusong SUN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    A COMPRESSOR SCROLL PROVIDED WITH AN OIL SUMP FAIRING
    • Publication number 20250052242
    • Publication date Feb 13, 2025
    • Danfoss Commercial Compressors
    • Patrice BONNEFOI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL COMPRESSOR WITH DIRECT RETURN OF OIL FROM AN OIL SEPARATOR I...
    • Publication number 20250035114
    • Publication date Jan 30, 2025
    • SANDEN INTERNATIONAL (EUROPE) GMBH
    • Manuel WAGNER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20250035113
    • Publication date Jan 30, 2025
    • LG ELECTRONICS INC.
    • Minho LEE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR AND REFRIGERATION APPARATUS
    • Publication number 20240271623
    • Publication date Aug 15, 2024
    • DAIKIN INDUSTRIES, LTD.
    • Shinichi KAWABATA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSION MECHANISM
    • Publication number 20240254989
    • Publication date Aug 1, 2024
    • TAIHO KOGYO CO., LTD.
    • Ukyo ISHIGURO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL COMPRESSOR AND REFRIGERATION DEVICE
    • Publication number 20240191712
    • Publication date Jun 13, 2024
    • DAIKIN INDUSTRIES, LTD.
    • Katsumi KATOU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20240167476
    • Publication date May 23, 2024
    • LG ELECTRONICS INC.
    • Joonhong Park
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20240151231
    • Publication date May 9, 2024
    • LG ELECTRONICS INC.
    • Jinung SHIN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DIRECT DRIVE REFRIGERANT SCREW COMPRESSOR WITH REFRIGERANT LUBRICAT...
    • Publication number 20240102472
    • Publication date Mar 28, 2024
    • Carrier Corporation
    • Yifan QIU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELECTRIC COMPRESSOR BEARING OIL COMMUNICATION APERTURE
    • Publication number 20240084803
    • Publication date Mar 14, 2024
    • MAHLE International GmbH
    • Jonathan Hammond
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Scroll machine and refrigeration system
    • Publication number 20240060492
    • Publication date Feb 22, 2024
    • Bitzer Kuehlmaschinenbau GmbH
    • Christian SCHARER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Rotor Assembly, Compressor and Air Conditioner
    • Publication number 20240044333
    • Publication date Feb 8, 2024
    • Gree Electric Appliances, Inc, of Zhuhai
    • Zhongkeng Long
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ECCENTRIC SLIDER FOR CRANKSHAFT, SCROLL COMPRESSOR, AND TEMPERATURE...
    • Publication number 20230417272
    • Publication date Dec 28, 2023
    • GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGIES CO., LTD.
    • Yingchao MA
    • 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

    HORIZONTAL ROTARY COMPRESSOR WITH ENHANCED TILTABILITY DURING OPERA...
    • Publication number 20230313797
    • Publication date Oct 5, 2023
    • ASPEN COMPRESSOR, LLC
    • Kang P. Lee
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL COMPRESSOR
    • Publication number 20230272798
    • Publication date Aug 31, 2023
    • SANDEN CORPORATION
    • Tetsuya IMAI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL COMPRESSION MECHANISM AND SCROLL COMPRESSOR
    • Publication number 20230258186
    • Publication date Aug 17, 2023
    • EMERSON CLIMATE TECHNOLOGIES (SUZHOU) CO., LTD.
    • Liwei GENG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SUPERCHARGER
    • Publication number 20230212976
    • Publication date Jul 6, 2023
    • Eaton Intelligent Power Limited
    • Daniel R. Ouwenga
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    DAMPING SYSTEM FOR COMPRESSOR
    • Publication number 20230175511
    • Publication date Jun 8, 2023
    • Johnson Controls Tyco IP Holdings LLP
    • Joseph Woodrow Pillis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Compressor Having Lubrication System
    • Publication number 20230114913
    • Publication date Apr 13, 2023
    • Emerson Climate Technologies, Inc.
    • Stephen M. SEIBEL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL COMPRESSOR
    • Publication number 20230107145
    • Publication date Apr 6, 2023
    • LG ELECTRONICS INC.
    • Changeol Jo
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SCROLL COMPRESSOR
    • Publication number 20230103461
    • Publication date Apr 6, 2023
    • DANFOSS (TIANJIN) LTD.
    • Qian HU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTOR ASSEMBLY AND COMPRESSOR
    • Publication number 20230076531
    • Publication date Mar 9, 2023
    • GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGY CO., LTD.
    • Yang LI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VIRTUAL SENSOR FOR WATER CONTENT IN OIL CIRCUIT
    • Publication number 20230040776
    • Publication date Feb 9, 2023
    • Wolfgang FEILER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    AEROSTATIC THRUST BEARING AND METHOD OF AEROSTATICALLY SUPPORTING A...
    • Publication number 20230037942
    • Publication date Feb 9, 2023
    • TRANE INTERNATIONAL INC.
    • Jay H. JOHNSON
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SCROLL COMPRESSOR, REFRIGERATION DEVICE, AND VEHICLE
    • Publication number 20220412360
    • Publication date Dec 29, 2022
    • ANHUI WELLING AUTO PARTS CO., LTD.
    • Guobiao JIANG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR WITH SELECTIVE OIL COMMUNICATION
    • Publication number 20220349405
    • Publication date Nov 3, 2022
    • LG ELECTRONICS INC.
    • Sungwon JUNG
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    COMPRESSOR
    • Publication number 20220307505
    • Publication date Sep 29, 2022
    • Daikin Industries, Ltd.
    • Masanori MASUDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...