TREA

characterised by varying the rotational speed

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  • CPC
  • F04C28/08
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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

F04C28/08characterised by varying the rotational speed
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for operating a compressor
    • Patent number 12,203,472
    • Issue date Jan 21, 2025
    • Haier US Appliance Solutions, Inc.
    • Joseph Wilson Latham
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Lubricant-sealed vacuum pump, lubricant filter and method
    • Patent number 12,196,207
    • Issue date Jan 14, 2025
    • LEYBOLD FRANCE S.A.S.
    • Christophe Despesse
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    EGR pump system and control method of EGR pump
    • Patent number 12,188,437
    • Issue date Jan 7, 2025
    • EATON INTELLIGENT POWER LIMITED
    • Douglas Anthony Hughes
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compact portable oxygen concentrator
    • Patent number 12,173,827
    • Issue date Dec 24, 2024
    • Inogen, Inc.
    • Brenton Alan Taylor
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Gas compressor
    • Patent number 12,146,481
    • Issue date Nov 19, 2024
    • Hitachi, Ltd.
    • Ryota Iijima
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump system and method for operating a vacuum pump system
    • Patent number 12,140,146
    • Issue date Nov 12, 2024
    • LEYBOLD GMBH
    • Max Pelikan
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pumping
    • Patent number 12,129,841
    • Issue date Oct 29, 2024
    • Edwards Limited
    • Gerald Robin Shelley
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method for determining a discharge pressure of a rolling piston com...
    • Patent number 12,098,722
    • Issue date Sep 24, 2024
    • Haier US Appliance Solutions, Inc.
    • Joseph Wilson Latham
    • 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

    Method for controlling the rotational speed of an electric motor dr...
    • Patent number 12,066,024
    • Issue date Aug 20, 2024
    • Volvo Truck Corporation
    • Hugo Bebon
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method for actuating a compressor system and a compressor system
    • Patent number 12,025,119
    • Issue date Jul 2, 2024
    • Atlas Copco Airpower, naamloze vennootschap
    • Guy L. A. Snels
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    EGR pump system and control method of EGR pump
    • Patent number 12,006,896
    • Issue date Jun 11, 2024
    • Eaton Intelligent Power Limited
    • Douglas Anthony Hughes
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Pump speed controlling method and apparatus, a computer program and...
    • Patent number 12,006,935
    • Issue date Jun 11, 2024
    • Atlas Copco Airpower N.V.
    • Simon Candries
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Vacuum pump
    • Patent number 11,988,211
    • Issue date May 21, 2024
    • LEYBOLD GMBH
    • Joeri Coeckelbergs
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable compressor housing
    • Patent number 11,971,035
    • Issue date Apr 30, 2024
    • Tyco Fire & Security GmbH
    • Franklin Aaron Montejo
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor and control method therefor
    • Patent number 11,953,006
    • Issue date Apr 9, 2024
    • Tyco Fire & Security GMBH
    • Yu Zhu
    • 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

    Variable capacity screw compressor and method
    • Patent number 11,933,301
    • Issue date Mar 19, 2024
    • TRANE INTERNATIONAL INC.
    • Dennis R. Dorman
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Screw compressor
    • Patent number 11,913,452
    • Issue date Feb 27, 2024
    • Daikin Industries, Ltd.
    • Takashi Inoue
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Active hydraulic ripple cancellation methods and systems
    • Patent number 11,879,451
    • Issue date Jan 23, 2024
    • ClearMotion, Inc.
    • Colin Patrick O'Shea
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Linear actuator assembly and system
    • Patent number 11,867,203
    • Issue date Jan 9, 2024
    • Project Phoenix, LLC
    • Thomas Afshari
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Compressor cylinder switching control method and device, unit and a...
    • Patent number 11,852,132
    • Issue date Dec 26, 2023
    • Gree Electric Appliances, Inc. of Zhuhai
    • Hua Liu
    • 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

    Compact portable oxygen concentrator
    • Patent number 11,821,559
    • Issue date Nov 21, 2023
    • Inogen, Inc.
    • Brenton Alan Taylor
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • 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

    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

    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 and monitoring system
    • Patent number 11,761,443
    • Issue date Sep 19, 2023
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yuya Ota
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Noise and vibration management for smoke evacuation system
    • Patent number 11,725,664
    • Issue date Aug 15, 2023
    • MegaDyne Medical Products, Inc.
    • Chad S. Frampton
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • 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...

Patents Applicationslast 30 patents

  • Information Patent Application

    Compressor/Expander Machine
    • Publication number 20250044007
    • Publication date Feb 6, 2025
    • Bitzer Kuehlmaschinenbau GmbH
    • Marcus Blumhardt
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    TWO-STAGE REFRIGERANT COMPRESSOR AND OPERATION METHOD THEREOF
    • Publication number 20240418169
    • Publication date Dec 19, 2024
    • FU SHENG INDUSTRIAL CO., LTD.
    • Wei-Hsu LIN
    • 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

    CONTROL METHOD FOR COMPRESSOR AND COMPRESSOR SYSTEM
    • Publication number 20240218878
    • Publication date Jul 4, 2024
    • DANFOSS (TIANJIN) LTD.
    • Yingke SUN
    • G01 - MEASURING TESTING
  • 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

    Electrical Sprayer
    • Publication number 20230400025
    • Publication date Dec 14, 2023
    • MMLJ, Inc.
    • Benjamin LeCompte
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    EGR PUMP SYSTEM AND CONTROL METHOD OF EGR PUMP
    • Publication number 20230374958
    • Publication date Nov 23, 2023
    • Eaton Intelligent Power Limited
    • Douglas Anthony Hughes
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    GAS COMPRESSOR
    • Publication number 20230366391
    • Publication date Nov 16, 2023
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Shigeyuki YORIKANE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GAS COMPRESSOR
    • Publication number 20230366400
    • Publication date Nov 16, 2023
    • Hitachi, Ltd
    • Ryota IIJIMA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP CONTROL SYSTEM FOR A REFUSE VEHICLE
    • Publication number 20230356937
    • Publication date Nov 9, 2023
    • Oshkosh Corporation
    • Derek Wente
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    NOISE AND VIBRATION MANAGEMENT FOR SMOKE EVACUATION SYSTEM
    • Publication number 20230340958
    • Publication date Oct 26, 2023
    • MEGADYNE MEDICAL PRODUCTS, INC.
    • Chad S. Frampton
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LUBRICANT-SEALED VACUUM PUMP, LUBRICANT FILTER AND METHOD
    • Publication number 20230296096
    • Publication date Sep 21, 2023
    • LEYBOLD FRANCE S.A.S.
    • Christophe Despesse
    • 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

    VARIABLE CAPACITY SCREW COMPRESSOR AND METHOD
    • Publication number 20230228269
    • Publication date Jul 20, 2023
    • TRANE INTERNATIONAL INC.
    • Dennis R. Dorman
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    PUMP SPEED CONTROLLING METHOD AND APPARATUS, A COMPUTER PROGRAM AND...
    • Publication number 20230167824
    • Publication date Jun 1, 2023
    • Atlas Copco Airpower N.V.
    • Simon Candries
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPACT PORTABLE OXYGEN CONCENTRATOR
    • Publication number 20230160513
    • Publication date May 25, 2023
    • Inogen, Inc.
    • Brenton Alan Taylor
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    METHOD TO OPERATE A VACUUM SYSTEM
    • Publication number 20230107879
    • Publication date Apr 6, 2023
    • Atlas Copco Airpower N.V.
    • Simon Candries
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM SYSTEM HAVING CONDENSER AND ROOT VACUUM PUMP SET
    • Publication number 20230096279
    • Publication date Mar 30, 2023
    • Raymond Zhou Shaw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP SYSTEM AND METHOD FOR OPERATING A VACUUM PUMP SYSTEM
    • Publication number 20230033429
    • Publication date Feb 2, 2023
    • Leybold GmbH
    • Max Pelikan
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHOD FOR CONTROLLING THE ROTATIONAL SPEED OF AN ELECTRIC MOTOR DR...
    • Publication number 20220325714
    • Publication date Oct 13, 2022
    • VOLVO TRUCK CORPORATION
    • Hugo BEBON
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Dual-Stage Compressor, Control Method Thereof and Air Conditioning...
    • Publication number 20220268280
    • Publication date Aug 25, 2022
    • GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    • Hua Liu
    • 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

    LINEAR ACTUATOR ASSEMBLY AND SYSTEM
    • Publication number 20220163054
    • Publication date May 26, 2022
    • Project Phoenix, LLC
    • Thomas AFSHARI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMPING
    • Publication number 20220090592
    • Publication date Mar 24, 2022
    • Edwards Limited
    • Gerald Robin Shelley
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW COMPRESSOR AND CONTROL METHOD THEREFOR
    • Publication number 20220090601
    • Publication date Mar 24, 2022
    • YORK (WUXI) AIR CONDITIONING AND REFRIGERATION CO. , LTD.
    • Yu Zhu
    • 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

    SCREW COMPRESSOR
    • Publication number 20220034319
    • Publication date Feb 3, 2022
    • DAIKIN INDUSTRIES, LTD.
    • Takashi INOUE
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • 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

    METHOD FOR CONTROLLING A SCROLL COMPRESSOR, AND CONTROLLER FOR A SC...
    • Publication number 20210381512
    • Publication date Dec 9, 2021
    • OET GmbH
    • Frank Obrist
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE COMPRESSOR HOUSING
    • Publication number 20210372406
    • Publication date Dec 2, 2021
    • Johnson Controls Technology Company
    • Franklin Aaron Montejo
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...