Patents-Review.com
ClassID:

143458 ⎘

F04C2/3446 - 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 more than one line or surface

Sub-classes:
Recent Application in this class:
#1
20260055763
2026-02-26

ROTARY VANE PUMP VANE WEAR DETECTION

 #2
20240318650
2024-09-26

Electric motor with dual pump for providing scavenge and delivery functions

 #3
20240003346
2024-01-04

Sliding-pocket variable-displacement pump with compensation chambers

 #4
20230407748
2023-12-21

SLIDING VANE PUMP OR TURBINE

 #5
20230287794
2023-09-14

NEW VANE SHAPE

 #6
20230193900
2023-06-22

ROTARY FLUID DEVICE

 #7
20230060242
2023-03-02

Vane pump with a notch provided at a suction port

 #8
20220196014
2022-06-23

Vane pump

 #9
20220186834
2022-06-16

Pump with a multi-layered bead gasket

 #10
20220145884
2022-05-12

Rotary pump with axial compensation, outlet gasket for a pump and pre-fitted pump unit

 #11
20220106958
2022-04-07

VANE PUMP AND METHOD FOR THE OPERATION THEREOF

 #12
20220049674
2022-02-17

High-pressure fuel pump

 #13
20220010795
2022-01-13

Vane pump with tip-end-side guide surfaces provided between inner and outer notches of the discharge port and base-end-side guide surface provided in the back pressure port

 #14
20210348620
2021-11-11

Electric pump

 #15
20210270267
2021-09-02

Pump unit for a drive train of a motor vehicle

 #16
20210108634
2021-04-15

Vane cell pump

 #17
20210095665
2021-04-01

Vane pump including fluid communication passages for routing fluid received from two inflow passages around outer peripheral surface of the entire perimeter of the cam ring

 #18
20210040948
2021-02-11

Rotary fluid device

 #19
20210025387
2021-01-28

Vane pump

 #20
20210003129
2021-01-07

Cartridge vane pump and pump device including same

 #21
20200392847
2020-12-17

VANE PUMP

 #22
20200072215
2020-03-05

ROTARY VANE VACUUM PUMP

 #23
20190301455
2019-10-03

Rotary pump with a lubricant feed connecting a rotor bearing and a radial sealing gap

 #24
20190195223
2019-06-27

Pump apparatus having axially moving shaft bearing disposed adjacent a pressure relief passage to facilitate a pressure relief function of same

 #25
20190128258
2019-05-02

MULTIPLE LOBE VANE FLUID PUMP HAVING ENHANCED UNDER-VANE CAVITY PRESSURIZATION

 #26
20180372097
2018-12-27

Pump comprising a spring

 #27
20180372094
2018-12-27

VARIABLE DISPLACEMENT PUMP WITH AXIAL DISPLACEMENT OF THE VANES

 #28
20180306185
2018-10-25

Transmission with double-flow sliding vane pump

 #29
20180306184
2018-10-25

VANE PUMP

 #30
20180283373
2018-10-04

CARTRIDGE VANE PUMP

 #31
20180252212
2018-09-06

CARTRIDGE VANE PUMP

 #32
20180230803
2018-08-16

Vane pump and determining method for inner profile of cam ring composing thereof

 #33
20180149154
2018-05-31

Vane pump and method for the operation thereof

 #34
20180135626
2018-05-17

POSITIVE DISPLACEMENT PUMP ASSEMBLY FOR POWERTRAIN SYSTEMS AND HYDRAULIC CONTROL SYSTEM INCORPORATING THE SAME

 #35
20180128107
2018-05-10

Vane oil pump with different back pressure supplied to vanes

 #36
20180106152
2018-04-19

Hydraulic machine

 #37
20180003176
2018-01-04

Vane cell pump with a sub-vane region to which pressure can be applied

 #38
20170356444
2017-12-14

Transfer device

 #39
20170184106
2017-06-29

Vane pump device

 #40
20170184105
2017-06-29

Vane pump device for controlling fluid supplied to vane grooves

 #41
20170184104
2017-06-29

Vane pump device for controlling deviation of a force applied to the vanes

 #42
20170184102
2017-06-29

Vane pump device for controlling force applied to vanes

 #43
20170184101
2017-06-29

Vane pump device

 #44
20170184100
2017-06-29

Vane pump device that controls pressure pushing vanes against a cam ring

 #45
20170175739
2017-06-22

Vane pump device having two different discharge amounts

 #46
20170175738
2017-06-22

Vane pump device having multiple discharge pressures

 #47
20170175737
2017-06-22

Supplying pressurized fluid to the vane groove for a vane pump device

 #48
20170122314
2017-05-04

Vane pump device and hydraulic apparatus

 #49
20170122313
2017-05-04

Vane pump device

 #50
20170122312
2017-05-04

Vane pump device

 #51
20170074262
2017-03-16

VEHICLE HYDRAULIC DEVICE

 #52
20170067462
2017-03-09

Vane pump and vane pump manufacturing method

 #53
20170022813
2017-01-26

Vane pump

 #54
20160377078
2016-12-29

PUMP DEVICE

 #55
20160333876
2016-11-17

Vane pump

 #56
20160325623
2016-11-10

Driving force distributing device

 #57
20160305428
2016-10-20

Pump comprising a spring

 #58
20160305427
2016-10-20

Pump including a spring fastened to positioning elements

 #59
20160245286
2016-08-25

Vane pump

 #60
20160138398
2016-05-19

Hydraulic vane-type machine

 #61
20150300174
2015-10-22

Unitary pump and turbine energy exchanger

 #62
20150252802
2015-09-10

VARIABLE DISPLACEMENT VANE PUMP

 #63
20150204326
2015-07-23

Vane pump unit

 #64
20150183459
2015-07-02

Power steering apparatus

 #65
20150167608
2015-06-18

Vane pump

 #66
20150078948
2015-03-19

Oil pump

 #67
20150078944
2015-03-19

Variable displacement vane pump

 #68
20150075152
2015-03-19

Hydraulic pressure supply system of automatic transmission

 #69
20150075151
2015-03-19

Hydraulic pressure supply system of automatic transmission

 #70
20150056090
2015-02-26

Variable capacity type vane pump

 #71
20150050173
2015-02-19

Variable displacement pump with double eccentric ring and displacement regulation method

 #72
20150017050
2015-01-15

Rotary vane motor with split vane

 #73
20140377116
2014-12-25

Variable vane pump with communication groove in the cam ring

 #74
20140328709
2014-11-06

Hydraulic machine with vane retaining mechanism

 #75
20140301877
2014-10-09

Pump device for delivering a medium

 #76
20140286801
2014-09-25

Pumping device for pumping oil from a storage container to a transmission system of a motor vehicle

 #77
20140255237
2014-09-11

Vane pump

 #78
20140241927
2014-08-28

Vane-type hydraulic device having vane formed with engaging groove

 #79
20140234150
2014-08-21

Vane pump with a vane ring, a vane ring housing chamber and vane ring opposite pressure chambers

 #80
20140219853
2014-08-07

Vane with offset walls and fluid passages used in a vane cell device

 #81
20140202144
2014-07-24

Combined pump and energy recovery turbine

 #82
20140163748
2014-06-12

Control system for variable displacement pump

 #83
20140069734
2014-03-13

Power steering apparatus

 #84
20130280118
2013-10-24

Vane pump

 #85
20130183171
2013-07-18

Rotary cam ring fluid machine

 #86
20130156564
2013-06-20

MULTI-DISCHARGE HYDRAULIC VANE PUMP

 #87
20130089456
2013-04-11

Cartridge Style Binary Vane Pump

 #88
20130052073
2013-02-28

Vane pump including outer side plate defining high and low pressure notch grooves of differing lengths adjacent the high and low discharge ports for improved noise performance

 #89
20130052071
2013-02-28

Vane pump

 #90
20130052057
2013-02-28

Vane pump apparatus and method

 #91
20130045126
2013-02-21

Tapered sound outlet vane pump

 #92
20120328463
2012-12-27

Split discharge vane pump and fluid metering system therefor

 #93
20120087820
2012-04-12

ROTARY DEVICE

 #94
20110223050
2011-09-15

VANE PUMP APPARATUS

 #95
20110189043
2011-08-04

VANE PUMP

 #96
20110171054
2011-07-14

Rotary device

 #97
20110088796
2011-04-21

Control valve body with integrated pump for automatic transmissions

 #98
20110038745
2011-02-17

Balanced pressure, variable displacement, dual lobe, single ring, vane pump

 #99
20100329917
2010-12-30

Vane pump containing a back pressure introduction passage

 #100
20100316507
2010-12-16

Split discharge vane pump and fluid metering system therefor

 #101
20100154402
2010-06-24

Flow rate control device of hydraulic pump in power steering system

 #102
20100040464
2010-02-18

Vane pump with vane biasing means

 #103
20100028181
2010-02-04

Vane pump for pumping hydraulic fluid

 #104
20090280021
2009-11-12

Hydraulic machine with vane retaining mechanism

 #105
20090180913
2009-07-16

Sliding vane pump with internal cam ring

 #106
20090162230
2009-06-25

Vane pump with improved internal port placement

 #107
20090114046
2009-05-07

Iron-base sintered part, manufacturing method of iron-base sintered part and actuator

 #108
20090068049
2009-03-12

Rotary device and oil pump having α-alumina and zirconia coating

 #109
20090041606
2009-02-12

VANE COMPRESSOR

 #110
20080310988
2008-12-18

Vane pump

 #111
20080286123
2008-11-20

Oil pump system for vehicle

 #112
20080245127
2008-10-09

Method of forming a rotary device

 #113
20080240935
2008-10-02

Balanced variable displacement vane pump with floating face seals and biased vane seals

 #114
20080202842
2008-08-28

Hydraulic traction system for vehicles

 #115
20080159898
2008-07-03

Vane Pump

 #116
20080124237
2008-05-29

Bi-Directional Pump Mechanism for Balanced Flow Fluid Exchanger

 #117
20080075615
2008-03-27

Power steering pump

 #118
20070148011
2007-06-28

Vane-cell pump provided with a deep-drawn metal-sheet pot

 #119
20070134120
2007-06-14

VANE PUMP

 #120
20070128065
2007-06-07

Pump

 #121
20060073027
2006-04-06

Vane pump

 #122
20060059904
2006-03-23

Hydraulic traction system for vehicles

 #123
20060039816
2006-02-23

Variable displacement vane pump with pressure balanced vane

 #124
20050281690
2005-12-22

Vane pump

 #125
20050207916
2005-09-22

Sliding vane pump

 #126
20050204738
2005-09-22

Oil pump

 #127
20050092525
2005-05-05

Down-hole vane motor

 #128
20050042126
2005-02-24

Vane type rotary machine

 #129
20050013720
2005-01-20

Rotary pump

 #130
20050008508
2005-01-13

Vane pump having a pressure compensating valve