TREA

of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth equivalents than the outer member

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Industry

  • CPC
  • F04C18/22
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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 F04C18/00Rotary-piston pumps specially adapted for elastic fluids

Current Industry

F04C18/22of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth equivalents than the outer member
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary heat pump
    • Patent number 11,988,166
    • Issue date May 21, 2024
    • MARUKO KEIHOKI CO., LTD.
    • Fumio Yuzawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Sealing system for a rotary-piston compressor
    • Patent number 11,988,207
    • Issue date May 21, 2024
    • RPC ENGINEERING LIMITED LIABILITY COMPANY
    • Maksym Victorovich Olenych
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pump body assembly, heat exchange apparatus, fluid machine and oper...
    • Patent number 11,971,031
    • Issue date Apr 30, 2024
    • Gree Electric Appliances, Inc. of Zhuhai
    • Mingzhu Dong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid transfer apparatus with a plurality of rotor housings arrange...
    • Patent number 11,867,179
    • Issue date Jan 9, 2024
    • Korea Atomic Energy Research Institute
    • Yongkwon Koh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid transfer device
    • Patent number 11,629,712
    • Issue date Apr 18, 2023
    • Korea Atomic Energy Research Institute
    • Yongkwon Koh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electric compressor system for vehicle
    • Patent number 11,346,345
    • Issue date May 31, 2022
    • Hyundai Motor Company
    • Jong Wan Han
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Tire pressure control system and components
    • Patent number 11,225,111
    • Issue date Jan 18, 2022
    • Illinois Tool Works Inc.
    • Martin P. Spindler
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Method and apparatus for orientation independent compression
    • Patent number 11,047,381
    • Issue date Jun 29, 2021
    • Rini Technologies, Inc.
    • Daniel P. Rini
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pressure changing device
    • Patent number 11,035,364
    • Issue date Jun 15, 2021
    • Sten Kreuger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor for discharging a medium
    • Patent number 10,968,906
    • Issue date Apr 6, 2021
    • Illinois Tool Works Inc.
    • Martin Patrick Spindler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Epitrochoidal vacuum pump
    • Patent number 10,871,161
    • Issue date Dec 22, 2020
    • STACKPOLE INTERNATIONAL ENGINEERED PRODUCTS, LTD.
    • Ralph Valkenberg
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Epitrochoidal type compressor
    • Patent number 10,550,842
    • Issue date Feb 4, 2020
    • Epitrochoidal Compressors Ltd
    • David Walker Garside
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid pressure changing device
    • Patent number 10,408,214
    • Issue date Sep 10, 2019
    • Sten Kreuger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid pressure changing device
    • Patent number 10,001,123
    • Issue date Jun 19, 2018
    • Sten Kreuger
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Medical injection systems and pumps
    • Patent number 9,713,672
    • Issue date Jul 25, 2017
    • ACIST Medical Systems, Inc.
    • Sidney Donald Nystrom
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medical injection systems and pumps
    • Patent number 9,511,186
    • Issue date Dec 6, 2016
    • ACIST Medical Systems, Inc.
    • Sidney Donald Nystrom
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Compressor with pressure reduction groove formed in eccentric part
    • Patent number 9,115,715
    • Issue date Aug 25, 2015
    • Daikin Industries, Ltd.
    • Naoto Tomioka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor having discharge groove to communicate compressio...
    • Patent number 9,004,888
    • Issue date Apr 14, 2015
    • Fujitsu General Limited
    • Taku Morishita
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method and apparatus for highly efficient compact vapor compression...
    • Patent number 8,371,134
    • Issue date Feb 12, 2013
    • Rini Technologies, Inc.
    • Daniel P. Rini
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Method and apparatus for highly efficient compact vapor compression...
    • Patent number 8,024,942
    • Issue date Sep 27, 2011
    • Rini Technologies, Inc.
    • Daniel P. Rini
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Method and apparatus for highly efficient compact vapor compression...
    • Patent number 7,942,642
    • Issue date May 17, 2011
    • Rini Technologies, Inc.
    • Daniel P. Rini
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Cooling systems
    • Patent number 7,621,143
    • Issue date Nov 24, 2009
    • Lenovo (Singapore) Pte. Ltd.
    • Timothy Samuel Farrow
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method and apparatus for highly efficient compact vapor compression...
    • Patent number 7,318,325
    • Issue date Jan 15, 2008
    • Rini Technologies, Inc.
    • Daniel P. Rini
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method and apparatus for highly efficient compact vapor compression...
    • Patent number 7,010,936
    • Issue date Mar 14, 2006
    • Rini Technologies, Inc.
    • Daniel P. Rini
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor assembly
    • Patent number 7,001,162
    • Issue date Feb 21, 2006
    • Ewan Choroszylow
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor and dehydrator system
    • Patent number 6,688,857
    • Issue date Feb 10, 2004
    • Ewan Choroszylow
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor assembly
    • Patent number 6,676,385
    • Issue date Jan 13, 2004
    • Ewan Choroszylow
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multiple stage compressor with rotors using rollers
    • Patent number 6,672,065
    • Issue date Jan 6, 2004
    • Ewan Choroszylow
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Power generation system
    • Patent number 6,571,561
    • Issue date Jun 3, 2003
    • Giovanni Aquino
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor unit for refrigeration
    • Patent number 6,520,754
    • Issue date Feb 18, 2003
    • Randell Technologies Inc.
    • Peter P. M. Randolphi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    PUMP BODY ASSEMBLY, HEAT EXCHANGE APPARATUS, FLUID MACHINE AND OPER...
    • Publication number 20220290669
    • Publication date Sep 15, 2022
    • GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    • Mingzhu DONG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SEALING SYSTEM FOR A ROTARY-PISTON COMPRESSOR
    • Publication number 20220136505
    • Publication date May 5, 2022
    • RPC ENGINEERING LIMITED LIABILITY COMPANY
    • Maksym Victorovich OLENYCH
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLUID TRANSFER APPARATUS
    • Publication number 20220127997
    • Publication date Apr 28, 2022
    • Korea Atomic Energy Research Institute
    • Yongkwon KOH
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLUID TRANSFER DEVICE
    • Publication number 20210372403
    • Publication date Dec 2, 2021
    • Korea Atomic Energy Research Institute
    • Yongkwon Koh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP BODY ASSEMBLY, FLUID MACHINERY, AND HEAT EXCHANGE DEVICE
    • Publication number 20210372408
    • Publication date Dec 2, 2021
    • Gree Electric Appliances, Inc. of Zhuhai
    • Mingzhu DONG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLUID TRANSFER APPARATUS
    • Publication number 20210123438
    • Publication date Apr 29, 2021
    • Korea Atomic Energy Research Institute
    • Yongkwon KOH
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ZORO COMPRESSOR
    • Publication number 20200173442
    • Publication date Jun 4, 2020
    • Enver ORAL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CIRCULATORY ASSISTANCE SYSTEM
    • Publication number 20190358377
    • Publication date Nov 28, 2019
    • Association Marie Lannelongue
    • Marc-Antoine Isorni
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Pressure Changing Device
    • Publication number 20190154038
    • Publication date May 23, 2019
    • Sten KREUGER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    TIRE PRESSURE CONTROL SYSTEM AND COMPONENTS
    • Publication number 20190023091
    • Publication date Jan 24, 2019
    • Illinois Tool Works Inc.
    • Martin P. SPINDLER
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    ROTOR ASSEMBLY FOR ROTARY COMPRESSOR
    • Publication number 20180291898
    • Publication date Oct 11, 2018
    • Randell Technologies, Inc.
    • Darryl Fleger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    EPITROCHOIDAL VACUUM PUMP
    • Publication number 20180291900
    • Publication date Oct 11, 2018
    • Stackpole International Engineered Products, Ltd.
    • Ralph VALKENBERG
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    COMPRESSOR FOR DISCHARGING A MEDIUM
    • Publication number 20180023554
    • Publication date Jan 25, 2018
    • Illinois Tool Works Inc.
    • Martin Patrick SPINDLER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Pressure Changing Device
    • Publication number 20170356446
    • Publication date Dec 14, 2017
    • Sten KREUGER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    EPITROCHOIDAL TYPE COMPRESSOR
    • Publication number 20170204857
    • Publication date Jul 20, 2017
    • Epitrochoidal Compressors Ltd.
    • David Walker Garside
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP AND METHOD OF MANUFACTURING VACUUM PUMP
    • Publication number 20150345494
    • Publication date Dec 3, 2015
    • Shimadzu Corporation
    • Tetsuya TSUBOKAWA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20150176583
    • Publication date Jun 25, 2015
    • Denso Corporation
    • Yoshinori Murase
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Rotor Assembly for Rotary Compressor
    • Publication number 20150152867
    • Publication date Jun 4, 2015
    • Randell Technologies Inc.
    • Darryl Fleger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR
    • Publication number 20140234147
    • Publication date Aug 21, 2014
    • DAIKIN INDUSTRIES, LTD.
    • Naoto Tomioka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20140119968
    • Publication date May 1, 2014
    • FUJITSU GENERAL LIMITED
    • Taku MORISHITA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Rotor Assembly for Rotary Compressor
    • Publication number 20110262291
    • Publication date Oct 27, 2011
    • Randell Technologies Inc.
    • Darryl Fleger
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Method and Apparatus for Highly Efficient Compact Vapor Compression...
    • Publication number 20100293993
    • Publication date Nov 25, 2010
    • Daniel P. Rini
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    METHOD AND APPARATUS FOR ORIENTATION INDEPENDENT COMPRESSION
    • Publication number 20100132382
    • Publication date Jun 3, 2010
    • Rini Technologies, Inc.
    • Daniel P. Rini
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    METHOD AND APPARATUS FOR HIGHLY EFFICIENT COMPACT VAPOR COMPRESSION...
    • Publication number 20100071389
    • Publication date Mar 25, 2010
    • Rini Technologies, Inc.
    • Daniel P. Rini
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    METHOD AND APPARATUS FOR HIGHLY EFFICIENT COMPACT VAPOR COMPRESSION...
    • Publication number 20100071390
    • Publication date Mar 25, 2010
    • Rini Technologies, Inc.
    • Daniel P. Rini
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Cooling Systems
    • Publication number 20080295534
    • Publication date Dec 4, 2008
    • Timothy Samuel Farrow
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Multi-Stage Trochoidal Vacuum Pump
    • Publication number 20080226480
    • Publication date Sep 18, 2008
    • ION METRICS, INC.
    • Robert J. Ferran
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Method and apparatus for highly efficient compact vapor compression...
    • Publication number 20060150666
    • Publication date Jul 13, 2006
    • Daniel P. Rini
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Multi-vane device
    • Publication number 20060127264
    • Publication date Jun 15, 2006
    • Giovanni Aquino
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Novel gas booster system
    • Publication number 20040179957
    • Publication date Sep 16, 2004
    • Ewan Choroszylow
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES