F04C 2/10

Sub-Class

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Description

Class  F04C : ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS


Subclass 2/10: Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C 3/00; with the working-chamber walls at least partly resiliently deformable F04C 5/00; with fluid ring or the like F04C 7/00; rotary-piston pumps specially adapted for elastic fluids F04C 18/00, F04C 19/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B) of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12264672 Motor vehicle oil pumpDec 27, 21Apr 01, 25O.M.P. OFFICINE MAZZOCCO PAGNONI S.R.L.
12258967 Energy transfer machine for corrosive fluidsApr 22, 24Mar 25, 25Genesis Advanced Technology Inc.
12247565 Rotor shaft hub and bearing for a high pressure fluid pump assemblyMay 26, 23Mar 11, 25M&M Technologies, Inc.
12234820 Electronic oil pumpMar 18, 22Feb 25, 25Zhejiang Sanhua Automotive Components Co., Ltd.
12234823 Internal gear pump and internal gear motorMar 09, 22Feb 25, 25Shimadzu Corporation
12228131 Integrated electric oil pumpApr 18, 24Feb 18, 25HANGZHOU QUADRANT TECHNOLOGY CO., LTD.
12228132 Variable displacement gerotor pumpApr 18, 23Feb 18, 25Not available
12215688 Electronic positive displacement fluid pump and method of encapsulating the sameMar 30, 23Feb 04, 25PHINIA JERSEY HOLDINGS LLC
12214640 Pneumatic adjustment apparatus and method for vehicleMar 20, 23Feb 04, 25Hyundai Mobis Co., Ltd.
12196202 Oil pump deviceJun 03, 22Jan 14, 25Mikuni Corporation
12180961 Assemblies for a hydraulic gear pump with force balance and internal cooling featuresJan 14, 22Dec 31, 24Parker-Hannifin Corporation
12173706 Hydraulic machineJun 06, 23Dec 24, 24White Drive Motors and Steering SP. Z.O.O.
12168979 Pump configured to reduce number of parts and lower manufacturing costOct 07, 20Dec 17, 24LG INNOTEK CO., LTD.
12168980 Hypotrochoid positive-displacement machineApr 20, 23Dec 17, 24Genesis Advanced Technology Inc.
12163516 Pump assembly fixtureJun 06, 23Dec 10, 24Rivian IP Holdings, LLC
12163519 Internal gear fluid machine with connection channel in each of two housing wallsJul 19, 21Dec 10, 24Eckerle Technologies GmbH
12163578 Vehicle driving apparatusMar 31, 23Dec 10, 24Honda Motor Co. Ltd.
12152586 Hydraulic machine with lubricated rotating spoolJun 06, 23Nov 26, 24White Drive Motors and Steering SP. Z.O.O.
12146491 Thermistor flow pathSep 01, 23Nov 19, 24GHSP, Inc.
12140141 Electric oil pump including pump housing and eccentric assembly non-concentrically arranged with pump housingApr 30, 24Nov 12, 24HANGZHOU QUADRANT TECHNOLOGY CO., LTD.

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0116,223 ROTARY PISTON MACHINEOct 04, 24Apr 10, 25Not available
2025/0101,978 TANDEM PUMP COMPRISING A MAIN FLOW AND A DRY SUMP FLOWDec 06, 22Mar 27, 25Not available
2025/0092,872 OIL PUMP FOR A MOTOR VEHICLEMar 13, 23Mar 20, 25Not available
2025/0096,629 PERMANENT MAGNET EMBEDDED MOTOR AND PUMP DEVICEJun 20, 24Mar 20, 25Mikuni Corporation
2025/0059,969 INTEGRATED ELECTRIC OIL PUMPApr 18, 24Feb 20, 25Not available
2025/0059,970 AUTOMOTIVE ELECTRIC LIQUID PUMPDec 23, 21Feb 20, 25PIERBURG PUMP TECHNOLOGY GMBH
2025/0059,971 GEROTOR PUMPApr 17, 23Feb 20, 25Not available
2025/0059,972 ELECTRIC OIL PUMPAug 13, 24Feb 20, 25Not available
2025/0059,973 Gerotor Pump And Motor/Pump UnitAug 15, 24Feb 20, 25Not available
2025/0043,781 THERMISTOR FLOW PATHOct 18, 24Feb 06, 25GHSP, Inc.
2025/0035,112 Grease pump unit comprising two serially connected pumpsSep 21, 24Jan 30, 25Not available
2025/0012,275 Gerotor Pump And Motor/Pump UnitJul 03, 24Jan 09, 25Not available
2024/0418,166 3-DIMENSIONAL PUMP ROTOR PROFILEAug 27, 24Dec 19, 24Not available
2024/0410,366 PUMP ASSEMBLY FIXTUREJun 06, 23Dec 12, 24Not available
2024/0392,778 ELECTRIC DEVICEMar 04, 24Nov 28, 24Mikuni Corporation
2024/0392,782 LIQUID PUMP DEVICEAug 04, 24Nov 28, 24Mikuni Corporation
2024/0352,933 OIL PUMP NOT REQUIRING CHANGING POSITIONS OF SUCTION PORT AND DISCHARGE PORT ACCORDING TO FORWARD ROTATION AND REVERSE ROTATIONAug 05, 22Oct 24, 24YOUNGSHIN PRECISION CO., LTD
2024/0328,414 ELECTRONIC OIL PUMPMar 14, 24Oct 03, 24Not available
2024/0328,416 ELECTRONIC POSITIVE DISPLACEMENT FLUID PUMP WITH PUMPING RING ALIGNMENTMar 30, 23Oct 03, 24Not available
2024/0318,648 FLUID DRIVE DEVICEJul 19, 22Sep 26, 24HANGZHOU AO KE MEI RUI TECHNOLOGY CO., LTD.

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