TREA

the surfaces of the inner and outer member, forming the working space, being surfaces of revolution

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  • F04C2/3442
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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 F04C2/00Rotary-piston machines or pumps

Current Industry

F04C2/3442the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Variable displacement lubricant pump having a radial inlet or outle...
    • Patent number 11,982,272
    • Issue date May 14, 2024
    • Pierburg Pump Technology GmbH
    • Massimiliano Lazzerini
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Bidirectional rotary hydraulic motor and pump
    • Patent number 11,952,899
    • Issue date Apr 9, 2024
    • Herbert Dym
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Automotive variable mechanical lubricant pump
    • Patent number 11,852,137
    • Issue date Dec 26, 2023
    • Pierburg Pump Technology GmbH
    • Carmine Cuneo
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vane pump
    • Patent number 11,802,559
    • Issue date Oct 31, 2023
    • ZF Friedrichshafen AG
    • Florian Pöhnlein
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Reduced-noise rotary pump
    • Patent number 11,719,240
    • Issue date Aug 8, 2023
    • Schwabische Huttenwerke Automotive GmbH
    • Fabian Eisele
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vaned pump device having fluid pressure chambers located outside th...
    • Patent number 11,713,758
    • Issue date Aug 1, 2023
    • Hitachi Astemo, Ltd.
    • Tetsuya Ishii
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement lubricant pump
    • Patent number 11,698,071
    • Issue date Jul 11, 2023
    • Pierburg Pump Technology GmbH
    • Massimiliano Lazzerini
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pulsation phenomenon suppression mechanism of pump device
    • Patent number 11,578,719
    • Issue date Feb 14, 2023
    • Hitachi Astemo, Ltd.
    • Yukichi Sunaga
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Flow-optimised vane pump
    • Patent number 11,549,508
    • Issue date Jan 10, 2023
    • NIDEC GPM GmbH
    • Sebastian Sieder
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary pump having an adjustable specific delivery volume and a pre...
    • Patent number 11,542,940
    • Issue date Jan 3, 2023
    • Schwabische Huttenwerke Automotive GmbH
    • Sven Peters
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pressure relief valve integrated in pivot pin of pump
    • Patent number 11,480,173
    • Issue date Oct 25, 2022
    • STACKPOLE INTERNATIONAL ENGINEERED PRODUCTS, LTD.
    • Abdalhameed Zubeidat
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Dual drive vane pump
    • Patent number 11,473,575
    • Issue date Oct 18, 2022
    • Hanon Systems EFP Canada Ltd.
    • Matthew Williamson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane cell pump comprising a pressure equalization connection
    • Patent number 11,434,906
    • Issue date Sep 6, 2022
    • Schwabische Huttenwerke Automotive GmbH
    • Tobias Iser
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane pump with improved seal assembly for control chamber
    • Patent number 11,421,685
    • Issue date Aug 23, 2022
    • STACKPOLE INTERNATIONAL ENGINEERED PRODUCTS, LTD.
    • Tuncay Bayo
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable lubricant vane pump
    • Patent number 11,396,811
    • Issue date Jul 26, 2022
    • Pierburg Pump Technology GmbH
    • Massimiliano Lazzerini
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Hydraulic automatic transmission bicycle
    • Patent number 11,345,439
    • Issue date May 31, 2022
    • Dong Won Lee
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Variable displacement lubricant vane pump
    • Patent number 11,268,509
    • Issue date Mar 8, 2022
    • Pierburg Pump Technology GmbH
    • Carmine Cuneo
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement oil pump slide with bow spring
    • Patent number 11,242,852
    • Issue date Feb 8, 2022
    • GM Global Technology Operations LLC
    • Andy Bennett
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement pump
    • Patent number 11,168,684
    • Issue date Nov 9, 2021
    • Hitachi Astemo, Ltd.
    • Koji Saga
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pump sleeve for integrated drive generator
    • Patent number 10,962,005
    • Issue date Mar 30, 2021
    • Hamilton Sundstrand Corporation
    • Derek R. Hochstetler
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable capacity oil pump
    • Patent number 10,947,973
    • Issue date Mar 16, 2021
    • Hitachi Automotive Systems, Ltd.
    • Atsushi Naganuma
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Cam liner for integrated drive generator
    • Patent number 10,907,718
    • Issue date Feb 2, 2021
    • Hamilton Sundstrand Corporation
    • Derek R. Hochstetler
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary device having a circular guide ring
    • Patent number 10,851,777
    • Issue date Dec 1, 2020
    • WindTrans Systems Ltd
    • Dan Patterson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hydraulic control apparatus and hydraulic control method
    • Patent number 10,801,494
    • Issue date Oct 13, 2020
    • Yamada Manufacturing Co., Ltd.
    • Yuji Senbongi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vane having surfaces with different material properties in a rotary...
    • Patent number 10,655,469
    • Issue date May 19, 2020
    • Schwabische Huttenwerke Automotive GmbH
    • Klaus Merk
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hydraulic automatic transmission bicycle
    • Patent number 10,611,432
    • Issue date Apr 7, 2020
    • Dong Won Lee
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydraulic apparatus
    • Patent number 10,519,990
    • Issue date Dec 31, 2019
    • YANMAR CO., LTD.
    • Kazuhiro Owada
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Pump exhibiting an adjustable delivery volume
    • Patent number 10,473,100
    • Issue date Nov 12, 2019
    • Schwabische Huttenwerke Automotive GmbH
    • Sven Peters
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane cell machine with centric bore in ring insert in side wall
    • Patent number 10,352,322
    • Issue date Jul 16, 2019
    • Danfoss A/S
    • Stig Kildegaard Andersen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane pump and determining method for inner profile of cam ring comp...
    • Patent number 10,344,595
    • Issue date Jul 9, 2019
    • Myunghwa Ind. Co., Ltd.
    • Sang-woo Kim
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    VALVELESS DEVICES FOR PULSATILE FLUID FLOW
    • Publication number 20240011485
    • Publication date Jan 11, 2024
    • Arizona Board of Regents on behalf of The University of Arizona
    • Marvin J. Slepian
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    ROTARY VANE PUMP
    • Publication number 20230358228
    • Publication date Nov 9, 2023
    • FTE automotive GmbH
    • Roland STOESSEL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY PUMP COMPRISING A SETTING STRUCTURE SPRING HAVING AN OFFSET...
    • Publication number 20230032977
    • Publication date Feb 2, 2023
    • Schwäbische Hüttenwerke Automotive GmbH
    • Sven Peters
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT LUBRICANT PUMP
    • Publication number 20220307497
    • Publication date Sep 29, 2022
    • PIERBURG PUMP TECHNOLOGY GMBH
    • MASSIMILIANO LAZZERINI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HYDRAULIC AUTOMATIC TRANSMISSION BICYCLE
    • Publication number 20220266948
    • Publication date Aug 25, 2022
    • Dong Won LEE
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Application

    VARIABLE DISPLACEMENT LUBRICANT PUMP
    • Publication number 20220235766
    • Publication date Jul 28, 2022
    • PIERBURG PUMP TECHNOLOGY GMBH
    • MASSIMILIANO LAZZERINI
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Dual Drive Vane Pump
    • Publication number 20210355941
    • Publication date Nov 18, 2021
    • Hanon Systems EFP Canada Ltd.
    • Matthew WILLIAMSON
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP APPARATUS
    • Publication number 20210324854
    • Publication date Oct 21, 2021
    • Hitachi Astemo, Ltd.
    • Jun SOEDA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    FLOW-OPTIMISED VANE PUMP
    • Publication number 20210115920
    • Publication date Apr 22, 2021
    • NIDEC GPM GmbH
    • Sebastian Sieder
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    AUTOMOTIVE VARIABLE MECHANICAL LUBRICANT PUMP
    • Publication number 20200400142
    • Publication date Dec 24, 2020
    • PIERBURG PUMP TECHNOLOGY GMBH
    • CARMINE CUNEO
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Vane Pump
    • Publication number 20200340473
    • Publication date Oct 29, 2020
    • ZF Friedrichshafen AG
    • Florian Pöhnlein
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    VANE CELL PUMP COMPRISING A PRESSURE EQUALIZATION CONNECTION
    • Publication number 20200340474
    • Publication date Oct 29, 2020
    • Tobias Iser
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE LUBRICANT VANE PUMP
    • Publication number 20200300092
    • Publication date Sep 24, 2020
    • PIERBURG PUMP TECHNOLOGY GMBH
    • MASSIMILIANO LAZZERINI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT LUBRICANT VANE PUMP
    • Publication number 20200256335
    • Publication date Aug 13, 2020
    • PIERBURG PUMP TECHNOLOGY GMBH
    • Carmine Cuneo
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HYDRAULIC AUTOMATIC TRANSMISSION BICYCLE
    • Publication number 20200172199
    • Publication date Jun 4, 2020
    • Dong Won LEE
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Variable Displacement Pump
    • Publication number 20200080555
    • Publication date Mar 12, 2020
    • GM GLOBAL TECHNOLOGY OPERATIONS LLC
    • Andy Bennett
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    ADAPTIVE PIVOT FOR VARIABLE DISPLACEMENT VANE PUMP
    • Publication number 20200072216
    • Publication date Mar 5, 2020
    • GM GLOBAL TECHNOLOGY OPERATIONS LLC
    • Varoon Shankar
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SPRING STRUCTURE WITH SLIDING ELEMENT
    • Publication number 20200032791
    • Publication date Jan 30, 2020
    • GM GLOBAL TECHNOLOGY OPERATIONS LLC
    • Andy Bennett
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20190338771
    • Publication date Nov 7, 2019
    • GM GLOBAL TECHNOLOGY OPERATIONS LLC
    • Andy Bennett
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP DEVICE
    • Publication number 20190277280
    • Publication date Sep 12, 2019
    • AISIN SEIKI KABUSHIKI KAISHA
    • Kazuyoshi SHIMATANI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP UNIT WITH INTEGRATED PISTON PUMP AND ELECTRIC MOTOR
    • Publication number 20190154036
    • Publication date May 23, 2019
    • ACTUANT CORPORATION
    • Marcel Gerardus Maria Nieuwenhuis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HYDRAULIC CONTROL APPARATUS AND HYDRAULIC CONTROL METHOD
    • Publication number 20190017596
    • Publication date Jan 17, 2019
    • Yamada Manufacturing Co., Ltd.
    • Yuji Senbongi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    WATER PUMP
    • Publication number 20180372093
    • Publication date Dec 27, 2018
    • O.M.P. OFFICINE MAZZOCCO PAGNONI S.R.L.
    • Giuseppe LO BIUNDO
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VANE PUMP AND DETERMINING METHOD FOR INNER PROFILE OF CAM RING COMP...
    • Publication number 20180230803
    • Publication date Aug 16, 2018
    • MYUNGHWA IND. CO., LTD.
    • Sang-woo KIM
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VANE PUMP WITH ONE OR MORE LESS RESTRICTED VANES
    • Publication number 20180163543
    • Publication date Jun 14, 2018
    • Stackpole International Engineered Products, Ltd.
    • Paul Morton
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VANE SPACING FOR A VARIABLE DISPLACEMENT OIL PUMP
    • Publication number 20180106252
    • Publication date Apr 19, 2018
    • FORD GLOBAL TECHNOLOGIES, L.L.C.
    • Abdelkrim ZOUANI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT VANE PUMP WITH THERMO-COMPENSATION
    • Publication number 20180010605
    • Publication date Jan 11, 2018
    • Stackpole International Engineered Products, Ltd.
    • Manfred ARNOLD
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Multiple Pressure Variable Displacement Pump with Mechanical Control
    • Publication number 20170306948
    • Publication date Oct 26, 2017
    • Melling Tool Company
    • Ayres Pinto De Andrade Filho
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20170234311
    • Publication date Aug 17, 2017
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE LUBRICANT VANE PUMP
    • Publication number 20160138592
    • Publication date May 19, 2016
    • PIERBURG PUMP TECHNOLOGY GMBH
    • MAURIZIO MORIGLIA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...