Patents-Review.com
ClassID:

143454 ⎘

F04C2/3441 - CPC Classification

Classification description:

Rotary-piston machines or pumps having the characteristics covered by two or more groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation

Sub-classes:
Recent Application in this class:
#1
20260043403
2026-02-12

ROTARY VANE PUMP WITH ANGULAR POSITION SENSING CAPABILITY

 #2
20260043402
2026-02-12

VANE PUMP WITH HYDROSTATIC PRESSURE PLATES

 #3
20250369371
2025-12-04

PUMP ASSEMBLY FOR GAS TURBINE ENGINES

 #4
20250198405
2025-06-19

Rotary Pump

 #5
20240401591
2024-12-05

VANE PUMP ROTORS

 #6
20240344515
2024-10-17

Oil pump

 #7
20240191711
2024-06-13

Constant-flow pulseless rotary-vane-type displacement machine

 #8
20230371377
2023-11-16

DEVICES AND METHODS FOR HANDLING A FLUID WORKING MEDIUM

 #9
20230332600
2023-10-19

Flange and pump body assembly with same

 #10
20230136689
2023-05-04

PUMP WITH VARIABLE SUCTION/DISCHARGE AMOUNT AND DRIVE DEVICE COMPOSED OF THE PUMP AND DRIVING METHOD THEREOF

 #11
20230105862
2023-04-06

Rotary pump comprising an adjusting device

 #12
20220403841
2022-12-22

ROTARY PUMP

 #13
20220316472
2022-10-06

Variable oil pump

 #14
20220106957
2022-04-07

VANE PUMP DEVICE

 #15
20210108634
2021-04-15

Vane cell pump

 #16
20210095664
2021-04-01

Cartridge vane pump and pump device

 #17
20210062810
2021-03-04

Vane pump

 #18
20200056612
2020-02-20

Rotary compressor having a rolling piston with coupling groove

 #19
20200018308
2020-01-16

Vane pump driven by an engine of an automobile

 #20
20190154036
2019-05-23

Pump unit with integrated piston pump and electric motor

 #21
20190120227
2019-04-25

Two-stage variable-displacement oil pump

 #22
20180371913
2018-12-27

Rotor and vane with insert

 #23
20180291894
2018-10-11

ENGINE OIL PUMP

 #24
20180258930
2018-09-13

Variable displacement-type oil pump

 #25
20180213806
2018-08-02

Mass supply system

 #26
20180213805
2018-08-02

MASS SUPPLY SYSTEM

 #27
20180187676
2018-07-05

Variable displacement oil pump including swing member

 #28
20180180045
2018-06-28

Pump and system for supplying a consumer

 #29
20180087506
2018-03-29

Rotary vane device having magnet arranged in rotor and stator

 #30
20170370360
2017-12-28

Scalable hydraulic motor with drive input shaft and driven output shaft

 #31
20170268682
2017-09-21

Pump device

 #32
20170101988
2017-04-13

Integrated pressure plate and port plate for pump

 #33
20160230758
2016-08-11

Vane pump

 #34
20160230756
2016-08-11

Vehicle hydraulic supply apparatus

 #35
20160222963
2016-08-04

VARIABLE DISPLACEMENT PUMP WITH ELECTRIC CONTROL OF DISPLACEMENT REGULATION AND METHOD OF REGULATING PUMP DISPLACEMENT

 #36
20160208799
2016-07-21

Low-pulse vane pumps

 #37
20160186752
2016-06-30

Variable displacement vane pump with integrated fail safe function

 #38
20150330389
2015-11-19

Vane pump including shaft fitting concave not to be penetrated

 #39
20150285250
2015-10-08

Noise-reduction mechanism for oil pump

 #40
20150204326
2015-07-23

Vane pump unit

 #41
20150110659
2015-04-23

Vane pump

 #42
20150050173
2015-02-19

Variable displacement pump with double eccentric ring and displacement regulation method

 #43
20150030485
2015-01-29

Variable displacement rotary pump and displacement regulation method

 #44
20150017045
2015-01-15

Vacuum pump of vehicle preventing lubricant from reintroducing for reducing operation noise

 #45
20140342072
2014-11-20

Mass supply system

 #46
20130202472
2013-08-08

Oval chamber vane pump

 #47
20130121863
2013-05-16

Adjustable vane pump for reducing pressure pulsations during discharge

 #48
20130071275
2013-03-21

Variable displacement lubricant pump

 #49
20120213654
2012-08-23

Adjustable vane cell pump with a slide comprising recesses

 #50
20120164018
2012-06-28

Metering pump with special-shaped cavity

 #51
20120076683
2012-03-29

Structure of Variable Oil Pump

 #52
20120070327
2012-03-22

Pre-pressurization pump liner for vane pump

 #53
20120045355
2012-02-23

Variable displacement oil pump

 #54
20120034123
2012-02-09

High efficiency fixed displacement vane pump

 #55
20110311387
2011-12-22

High efficiency fixed displacement vane pump including a compression spring

 #56
20110300015
2011-12-08

Vane pump

 #57
20110293458
2011-12-01

Sliding vane pump with improved rotor profile

 #58
20110286862
2011-11-24

PUMP FOR A LUBRICATING SYSTEM OF A COMBUSTION ENGINE

 #59
20110211985
2011-09-01

Pump having a flow guide device between at least one pressure plate and a housing

 #60
20110194967
2011-08-11

VARIABLE DISPLACEMENT PUMP, OIL JET AND LUBLICATING SYSTEM USING VARIABLE DISPLACEMENT PUMP

 #61
20110165010
2011-07-07

VANE PUMP

 #62
20110150684
2011-06-23

Variable displacement vane pump

 #63
20110150682
2011-06-23

Cam bearing flow control for rotating cam ring vane pump

 #64
20110129376
2011-06-02

PULSE PRESSURE DECREASING TYPE VARIABLE OIL PUMP

 #65
20100034681
2010-02-11

Variable capacity vane pump

 #66
20090301887
2009-12-10

Metal part and method of manufacturing metal part

 #67
20090148324
2009-06-11

Variable displacement vane pump

 #68
20070261237
2007-11-15

Methods for hardening pump casings

 #69
20070059195
2007-03-15

Rotary piston pump end pressure regulation system

 #70
20060165545
2006-07-27

Sintered metal rotor of a rotary piston pump

 #71
20060137536
2006-06-29

Dividing device

 #72
20050232801
2005-10-20

Hyrdraulic motor

 #73
20050214153
2005-09-29

Rotary vane pump

 #74
20050214152
2005-09-29

Rotary vane pump

 #75
20050214150
2005-09-29

Pump and ink jet printer mounting the pump

 #76
20050047930
2005-03-03

System for controlling a hydraulic variable-displacement pump

 #77
20050019175
2005-01-27

Variable displacement pump

 #78
20050019174
2005-01-27

Variable displacement pump with communication passage

 #79
18987978
2025-12-23

Single sliding vane rotary displacement pump

 #80
14962965
2018-11-06

Reverse vane engine extracting work from hot gas entering an engine at an ambient pressure