TREA

Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids

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Industry

  • CPC
  • F04C28/00
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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

Current Industry

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

Sub Industries

F04C28/02specially adapted for several pumps connected in series or in parallel F04C28/04specially adapted for reversible pumps F04C28/06specially adapted for stopping, starting, idling or no-load operation F04C28/065Capacity control using a multiplicity of units or pumping capacities F04C28/08characterised by varying the rotational speed F04C28/10characterised by changing the positions of the inlet or outlet openings with respect to the working chamber F04C28/12using sliding valves F04C28/125with sliding valves controlled by the use of fluid other than the working fluid F04C28/14using rotating valves F04C28/16using lift valves F04C28/18characterised by varying the volume of the working chamber F04C28/185by varying the useful pumping length of the cooperating members in the axial direction F04C28/20by changing the form of the inner or outer contour of the working chamber F04C28/22by changing the eccentricity between cooperating members F04C28/24characterised by using valves regulating pressure or flow rate F04C28/26using bypass channels F04C28/265being obtained by displacing a lateral sealing face F04C28/28Safety arrangements Monitoring
Industries

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    CO-ROTATING SCROLL COMPRESSOR
    • Publication number 20250215876
    • Publication date Jul 3, 2025
    • KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    • Akito SUGAHARA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR APPARATUS AND METHOD OF OPERATING THE SAME
    • Publication number 20250207592
    • Publication date Jun 26, 2025
    • KAESER KOMPRESSOREN SE
    • Michael GUTSCHE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPACT PORTABLE OXYGEN CONCENTRATOR
    • Publication number 20250207705
    • Publication date Jun 26, 2025
    • Inogen, Inc.
    • Brenton Alan Taylor
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    PUMP START UP CONTROL
    • Publication number 20250198406
    • Publication date Jun 19, 2025
    • LEYBOLD FRANCE S.A.S.
    • Benoit Reynaud
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Compressor device with cooling, and method for operating a compress...
    • Publication number 20250198409
    • Publication date Jun 19, 2025
    • KAESER KOMPRESSOREN SE
    • Dirk SIMROSS
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    AIREND HAVING A LUBRICANT FLOW VALVE AND CONTROLLER
    • Publication number 20250198407
    • Publication date Jun 19, 2025
    • Ingersoll-Rand Industrial U.S., Inc.
    • Michael Borkowski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW COMPRESSOR
    • Publication number 20250188930
    • Publication date Jun 12, 2025
    • JOHNSON CONTROLS AIR CONDITIONING AND REFRIGERATION (WUXI) CO., LTD.
    • Haixian Zhang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DEVICE FOR CONTROLLING A FLUID MASS FLOW FOR A DEVICE FOR COMPRESSI...
    • Publication number 20250188932
    • Publication date Jun 12, 2025
    • HANON SYSTEMS
    • Ayhan Ayar
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Heat Pump Systems With Capacity Modulation
    • Publication number 20250188927
    • Publication date Jun 12, 2025
    • Copeland LP
    • Brian R. BUTLER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL COMPRESSOR
    • Publication number 20250180017
    • Publication date Jun 5, 2025
    • LG ELECTRONICS INC.
    • Sangbaek PARK
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR UNIT AND METHOD FOR OPERATING A COMPRESSOR UNIT
    • Publication number 20250172144
    • Publication date May 29, 2025
    • Bitzer Kuehlmaschinenbau GmbH
    • Tihomir Mikulic
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SYSTEM AND METHOD FOR CLEANING A LIQUID RING PUMP SYSTEM
    • Publication number 20250163915
    • Publication date May 22, 2025
    • 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

    SCROLL COMPRESSOR
    • Publication number 20250146488
    • Publication date May 8, 2025
    • LG ELECTRONICS INC.
    • Changeol JO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    A VARIABLE-SPEED REFRIGERATING SCROLL COMPRESSOR WITH AN OIL FLOW R...
    • Publication number 20250129781
    • Publication date Apr 24, 2025
    • Danfoss Commercial Compressors
    • Remi Bou DARGHAM
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR
    • Publication number 20250129785
    • Publication date Apr 24, 2025
    • Hitachi-Johnson Controls Air Conditioning, Inc.
    • Allen FENG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY POSITIVE DISPLACEMENT DEVICE
    • Publication number 20250129778
    • Publication date Apr 24, 2025
    • Spherical Rotors Inc.
    • Michael Justin Sereda-Mohr
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE CAPACITY BYPASS VALVE FOR SCREW COMPRESSOR
    • Publication number 20250084845
    • Publication date Mar 13, 2025
    • Hitachi Global Air Power US, LLC
    • Jonathan D. BATDORFF
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    BACK PRESSURE REGULATING VALVE AND AN ELECTRIC TYPE OF A SCROLL COM...
    • Publication number 20250075701
    • Publication date Mar 6, 2025
    • ATECHELTHERMO Co., Ltd.
    • Sung-Hyun JEUN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL COMPRESSOR AND METHOD FOR CONTROLLING SCROLL COMPRESSOR
    • Publication number 20250052240
    • Publication date Feb 13, 2025
    • Danfoss Commercial Compressors
    • Patrice BONNEFOI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • 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

    RESIDUAL VOLTAGE CONTROLLER AND ELECTRIC COMPRESSOR INCLUDING THE SAME
    • Publication number 20250003409
    • Publication date Jan 2, 2025
    • HANON SYSTEMS
    • Ho Jin Lee
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • 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

    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

    COMPRESSOR AND REFRIGERATION CYCLE DEVICE HAVING THE SAME
    • Publication number 20240410629
    • Publication date Dec 12, 2024
    • Samsung Electronics Co., Ltd.
    • Soodol PARK
    • 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

    DEVICE FOR COMPRESSING A GASEOUS FLUID AND METHOD FOR OPERATING THE...
    • Publication number 20240369062
    • Publication date Nov 7, 2024
    • HANON SYSTEMS
    • Ayhan Ayar
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPACT VARIABLE VOLUME INDEX VALVE FOR SCREW COMPRESSOR BACKGROUND
    • Publication number 20240352935
    • 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

    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...