TREA

characterised by using valves regulating pressure or flow rate

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  • CPC
  • F04C28/24
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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 F04C28/00Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids

Current Industry

F04C28/24characterised by using valves regulating pressure or flow rate
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Compressor and method of controlling the compressor
    • Patent number 12,173,713
    • Issue date Dec 24, 2024
    • Danfoss (Tianjin) Ltd.
    • Lin Ma
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Heat pump systems with capacity modulation
    • Patent number 12,173,708
    • Issue date Dec 24, 2024
    • Copeland LP
    • Brian R. Butler
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor and valve assembly
    • Patent number 12,163,523
    • Issue date Dec 10, 2024
    • Copeland LP
    • Srinivasan Ramalingam
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor and air conditioning system
    • Patent number 12,152,589
    • Issue date Nov 26, 2024
    • GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    • Mingsheng Zhuo
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Control of operating liquid flow into a liquid ring pump
    • Patent number 12,123,412
    • Issue date Oct 22, 2024
    • Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
    • Andries Daniel Jozef De Bock
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method for controlling a rotary screw compressor
    • Patent number 12,092,110
    • Issue date Sep 17, 2024
    • Gardner Denver Deutschland GmbH
    • Ulrich Thomes
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor with a pressure relief low-speed rotation structure
    • Patent number 12,085,077
    • Issue date Sep 10, 2024
    • GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGIES CORPORATION
    • Baiying Huang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Liquid ring pump control
    • Patent number 12,038,007
    • Issue date Jul 16, 2024
    • Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
    • Andries Daniel Jozef De Bock
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Injection valve assembly for a compressor
    • Patent number 12,006,938
    • Issue date Jun 11, 2024
    • HANON SYSTEMS
    • Bradley Vernon Crenshaw
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gas compressor with a plurality of air realease systems each having...
    • Patent number 11,994,138
    • Issue date May 28, 2024
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kenji Morita
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electro-magnetic throttle valve with integrated blowdown conduit
    • Patent number 11,994,232
    • Issue date May 28, 2024
    • Ingersoll-Rand Industrial U.S., Inc.
    • Vineeth Poulose
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Scroll compressor with grooves and auxiliary discharge ports
    • Patent number 11,988,206
    • Issue date May 21, 2024
    • Kabushiki Kaisha Toyota Jidoshokki
    • Ken Namiki
    • 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

    Variable-frequency compressor with adaptive heating power control a...
    • Patent number 11,955,915
    • Issue date Apr 9, 2024
    • Danfoss (Tianjin) Ltd.
    • Shizhong Ji
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor stop valve and associated system
    • Patent number 11,920,593
    • Issue date Mar 5, 2024
    • Ingersoll-Rand Industrial U.S., Inc.
    • Michael Borkowski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electric pump
    • Patent number 11,905,954
    • Issue date Feb 20, 2024
    • Kabushiki Kaisha Toyota Jidoshokki
    • Tatsushi Mori
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    ETXV direct discharge injection compressor
    • Patent number 11,885,535
    • Issue date Jan 30, 2024
    • HANON SYSTEMS
    • Steven Koester
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Minimum pressure valve and method for servicing such a valve
    • Patent number 11,859,616
    • Issue date Jan 2, 2024
    • Atlas Copco Airpower, naamloze vennootschap
    • Kristof Adrien Martens
    • 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

    Rotary compressors with variable speed and volume control
    • Patent number 11,852,145
    • Issue date Dec 26, 2023
    • TRANE INTERNATIONAL, INC.
    • Jay H. Johnson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor including silencer device containing silencing holes
    • Patent number 11,846,288
    • Issue date Dec 19, 2023
    • Copeland Climate Technologies (Suzhou) Co. Ltd.
    • Yuanyuan Wei
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor with center hub
    • Patent number 11,846,287
    • Issue date Dec 19, 2023
    • Copeland LP
    • Natalie M. Gehret
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Liquid ring pump control
    • Patent number 11,828,285
    • Issue date Nov 28, 2023
    • Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
    • Andries Daniel Jozef De Bock
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Power saving vacuuming pump system based on complete-bearing-sealin...
    • Patent number 11,815,095
    • Issue date Nov 14, 2023
    • ELIVAL CO., LTD
    • Raymond Zhou Shaw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor
    • Patent number 11,802,563
    • Issue date Oct 31, 2023
    • Mitsubishi Electric Corporation
    • Masahiro Kanda
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gas compressor
    • Patent number 11,773,855
    • Issue date Oct 3, 2023
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Toshiaki Yabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor having capacity modulation assembly
    • Patent number 11,754,072
    • Issue date Sep 12, 2023
    • Copeland LP
    • Roy J. Doepker
    • 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

    Method for operating a vacuum pump system
    • Patent number 11,719,231
    • Issue date Aug 8, 2023
    • LEYBOLD GMBH
    • Matthias Nahrwold
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Cooled dry vacuum screw pump
    • Patent number 11,708,832
    • Issue date Jul 25, 2023
    • Khurram Akhtar
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    DEVICE FOR CONTROLLING A FLUID MASS FLOW FOR A DEVICE FOR COMPRESSI...
    • Publication number 20240426301
    • Publication date Dec 26, 2024
    • HANON SYSTEMS
    • Ayhan Ayar
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTIPATH PASSIVE DISCHARGE VALVE FOR A COMPRESSOR
    • Publication number 20240418171
    • Publication date Dec 19, 2024
    • HANON SYSTEMS
    • Steven J. Koester
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHOD FOR CONTROLLING A ROTARY SCREW COMPRESSOR
    • Publication number 20240401595
    • Publication date Dec 5, 2024
    • GARDNER DENVER DEUTSCHLAND GmbH
    • Ulrich Thomes
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELEMENT FOR COMPRESSING A GAS AND METHOD FOR CONTROLLING SUCH ELEMENT
    • Publication number 20240376894
    • Publication date Nov 14, 2024
    • ATLAS COPCO AIRPOWER, naamloze vennootschap
    • Wim MATHYS
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SPIRAL VALVE FOR SCREW CAPACITY CONTROL
    • Publication number 20240352936
    • Publication date Oct 24, 2024
    • Hitachi Global Air Power US, LLC
    • Jonathan D. BATDORFF
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELECTRO-MAGNETIC THROTTLE VALVE
    • Publication number 20240328530
    • Publication date Oct 3, 2024
    • Ingersoll-Rand Industrial U.S., Inc.
    • Vineeth Poulose
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    STATOR FOR A VACUUM PUMP
    • Publication number 20240218877
    • Publication date Jul 4, 2024
    • Edwards Limited
    • Michael Henry North
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL COMPRESSOR
    • Publication number 20240151227
    • Publication date May 9, 2024
    • LG ELECTRONICS INC.
    • Jinyong JANG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • 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

    METHODS AND SYSTEMS FOR AIR COMPRESSOR AND ENGINE DRIVEN CONTROL
    • Publication number 20240068473
    • Publication date Feb 29, 2024
    • Illinois Tool Works Inc.
    • Nathan Joe Jochman
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Scroll Compressor With Center Hub
    • Publication number 20240052836
    • Publication date Feb 15, 2024
    • Copeland LP
    • Natalie M. GEHRET
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL PUMP
    • Publication number 20240018960
    • Publication date Jan 18, 2024
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHOD FOR CONTROLLING A ROTARY SCREW COMPRESSOR
    • Publication number 20230279857
    • Publication date Sep 7, 2023
    • GARDNER DENVER DEUTSCHLAND GmbH
    • Ulrich Thomes
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LIQUID RING PUMP CONTROL
    • Publication number 20230243353
    • Publication date Aug 3, 2023
    • Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
    • Andries Daniel Jozef De Bock
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    eTXV DIRECT DISCHARGE INJECTION COMPRESSOR
    • Publication number 20220397316
    • Publication date Dec 15, 2022
    • HANON SYSTEMS
    • Steven Koester
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GAS-LIQUID SEPARATOR AND METHOD AND AIR COMPRESSOR SYSTEM EQUIPPED...
    • Publication number 20220364563
    • Publication date Nov 17, 2022
    • VANAIR MANUFACTURING, INC.
    • Garrett M. Griggs
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW COMPRESSOR
    • Publication number 20220349404
    • Publication date Nov 3, 2022
    • Mitsubishi Electric Corporation
    • Masahiro KANDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COOLED DRY VACUUM SCREW PUMP
    • Publication number 20220268279
    • Publication date Aug 25, 2022
    • FRUVAC LTD.
    • Khurram Akhtar
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR AND METHOD OF CONTROLLING THE COMPRESSOR
    • Publication number 20220205447
    • Publication date Jun 30, 2022
    • DANFOSS (TIANJIN) LTD.
    • Lin Ma
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE-FREQUENCY COMPRESSOR WITH ADAPTIVE HEATING POWER CONTROL...
    • Publication number 20220186730
    • Publication date Jun 16, 2022
    • DANFOSS (TIANJIN) LTD.
    • Shizhong Ji
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20220178372
    • Publication date Jun 9, 2022
    • DAIKIN INDUSTRIES, LTD.
    • Yukihiro INADA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR AND AIR CONDITIONING SYSTEM
    • Publication number 20220136507
    • Publication date May 5, 2022
    • GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    • Mingsheng ZHUO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHOD FOR CONTROLLING A ROTARY SCREW COMPRESSOR
    • Publication number 20220082100
    • Publication date Mar 17, 2022
    • GARDNER DENVER DEUTSCHLAND GmbH
    • Ulrich Thomes
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Method for Controlling a Compressor Installation
    • Publication number 20220049693
    • Publication date Feb 17, 2022
    • KAESER KOMPRESSOREN SE
    • Thomas Oppel
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE CAPACITY COMPRESSOR
    • Publication number 20220025887
    • Publication date Jan 27, 2022
    • SHANGHAI HIGHLY ELECTRICAL APPLIANCES CO., LTD.
    • Yanzhen WANG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHOD FOR OPERATING A VACUUM PUMP SYSTEM
    • Publication number 20210381499
    • Publication date Dec 9, 2021
    • Leybold GmbH
    • Matthias Nahrwold
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    POWER SAVING VACUUMING PUMP SYSTEM BASED ON COMPLETE-BEARING-SEALIN...
    • Publication number 20210372404
    • Publication date Dec 2, 2021
    • Raymond Zhou Shaw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LUBRICATION SYSTEM FOR A COMPRESSOR
    • Publication number 20210324859
    • Publication date Oct 21, 2021
    • Joy Global Surface Mining Inc
    • Michael D. Lanum
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    OIL-INJECTED MULTISTAGE COMPRESSOR DEVICE AND METHOD FOR CONTROLLIN...
    • Publication number 20210324858
    • Publication date Oct 21, 2021
    • ATLAS COPCO AIRPOWER, naamloze vennootschap
    • Stijn BROUCKE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Compressor Having Capacity Modulation Assembly
    • Publication number 20210190070
    • Publication date Jun 24, 2021
    • Emerson Climate Technologies, Inc.
    • Roy J. DOEPKER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...