Patents-Review.com
ClassID:

143514 ⎘

F04C14/226 - CPC Classification

Classification description:

Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis

Recent Application in this class:
#1
20240369060
2024-11-07

Variable Displacement Oil Pump

 #2
20240352932
2024-10-24

Variable-capacity oil pump

 #3
20240344515
2024-10-17

Oil pump

 #4
20230358228
2023-11-09

Rotary vane pump

 #5
20230136689
2023-05-04

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

 #6
20230105862
2023-04-06

Rotary pump comprising an adjusting device

 #7
20230096852
2023-03-30

Fuel pump with determinant translating cam arrangement

 #8
20230032977
2023-02-02

Rotary pump comprising a setting structure spring having an offset line of action

 #9
20220381240
2022-12-01

Oil pump with straightening member branching the suction passage

 #10
20220316473
2022-10-06

VARIABLE DISPLACEMENT PUMP

 #11
20220316472
2022-10-06

Variable oil pump

 #12
20220307497
2022-09-29

Variable displacement lubricant pump having a radial inlet or outlet opening axially between at least two bushing rings

 #13
20220235766
2022-07-28

VARIABLE DISPLACEMENT LUBRICANT PUMP

 #14
20220235764
2022-07-28

Variable displacement vane pump with improved pressure control and range

 #15
20220128051
2022-04-28

Dual vane pump with pre-pressurization passages

 #16
20220065248
2022-03-03

Helical spring for a pump having an adjustable delivery volume

 #17
20210355941
2021-11-18

Dual drive vane pump

 #18
20210324854
2021-10-21

PUMP APPARATUS

 #19
20210293238
2021-09-23

Reduced-noise rotary pump

 #20
20210048025
2021-02-18

Vaned pump device having fluid pressure chambers located outside the cam ring to control cam ring eccentricity

 #21
20200400142
2020-12-24

Automotive variable mechanical lubricant pump

 #22
20200378382
2020-12-03

Variable displacement rotary vane pump

 #23
20200370551
2020-11-26

Spool valve used in a variable vane pump

 #24
20200340478
2020-10-29

Vane pump with improved seal assembly for control chamber

 #25
20200325895
2020-10-15

Variable volume chamber device

 #26
20200309120
2020-10-01

Variable displacement oil pump slide with bow spring

 #27
20200291938
2020-09-17

Variable displacement vane pump

 #28
20200284254
2020-09-10

Pulsation phenomenon suppression mechanism of pump device

 #29
20200256335
2020-08-13

Variable displacement lubricant vane pump

 #30
20200248686
2020-08-06

Pressure relief valve integrated in pivot pin of pump

 #31
20200208630
2020-07-02

VANE PUMP HAVING HOLLOW PIVOT PIN WITH FASTENER

 #32
20200141403
2020-05-07

Variable displacement pump and control method therefor

 #33
20200072216
2020-03-05

ADAPTIVE PIVOT FOR VARIABLE DISPLACEMENT VANE PUMP

 #34
20200032793
2020-01-30

Variable displacement pump

 #35
20200011326
2020-01-09

VANE PUMP

 #36
20190376509
2019-12-12

Variable displacement pump

 #37
20190277280
2019-09-12

PUMP DEVICE

 #38
20190226479
2019-07-25

Variable capacity pump and working oil supply system for internal combustion engine

 #39
20190154036
2019-05-23

Pump unit with integrated piston pump and electric motor

 #40
20190120227
2019-04-25

Two-stage variable-displacement oil pump

 #41
20190017596
2019-01-17

Hydraulic control apparatus and hydraulic control method

 #42
20180372095
2018-12-27

WATER PUMP

 #43
20180291894
2018-10-11

ENGINE OIL PUMP

 #44
20180258930
2018-09-13

Variable displacement-type oil pump

 #45
20180245589
2018-08-30

Variable oil pump

 #46
20180245588
2018-08-30

Variable oil pump

 #47
20180245587
2018-08-30

Variable oil pump having adjustment ring containing guide portion with flat surface

 #48
20180230803
2018-08-16

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

 #49
20180223840
2018-08-09

Variable capacity oil pump

 #50
20180187676
2018-07-05

Variable displacement oil pump including swing member

 #51
20180135625
2018-05-17

VARIABLE CAPACITY OIL PUMP

 #52
20180106252
2018-04-19

Vane spacing for a variable displacement oil pump

 #53
20180023564
2018-01-25

Variable displacement pump

 #54
20180010605
2018-01-11

Variable displacement vane pump with thermo-compensation

 #55
20170350527
2017-12-07

Solenoid valve and oil pump

 #56
20170328365
2017-11-16

Variable displacement oil pump

 #57
20170328363
2017-11-16

Pump with control system including a control system for directing delivery of pressurized lubricant

 #58
20170234311
2017-08-17

Variable displacement pump

 #59
20170198692
2017-07-13

Variable displacement vane pump

 #60
20170184096
2017-06-29

Variable pressure pump with hydraulic passage

 #61
20170167484
2017-06-15

Pump exhibiting an adjustable delivery volume

 #62
20170058893
2017-03-02

Variable displacement pump

 #63
20170045047
2017-02-16

Vane pump with adjustable delivery volume

 #64
20170030351
2017-02-02

Variable vane displacement pump utilizing a control valve and a switching valve

 #65
20160348673
2016-12-01

Oil pump device

 #66
20160186752
2016-06-30

Variable displacement vane pump with integrated fail safe function

 #67
20160186751
2016-06-30

Variable displacement pump

 #68
20160186623
2016-06-30

Variable displacement vane pump with integrated fail safe function

 #69
20160177950
2016-06-23

Variable displacement oil pump

 #70
20160177948
2016-06-23

Rotary pump with a compact setting structure for adjusting the delivery volume

 #71
20160153325
2016-06-02

Variable displacement oil pump

 #72
20160090983
2016-03-31

Oil pump structure

 #73
20160084249
2016-03-24

Variable displacement vane pump

 #74
20160069346
2016-03-10

Variable displacement vane pump with thermo-compensation

 #75
20160040665
2016-02-11

Hydraulic conveying device and hydraulic system

 #76
20160017884
2016-01-21

Variable displacement vane pump having connection groove communicating with suction-side back pressure port thereof

 #77
20160010642
2016-01-14

Variable displacement vane pump

 #78
20150377098
2015-12-31

Control device for oil pump

 #79
20150369240
2015-12-24

Vane pump with multiple control chambers

 #80
20150322943
2015-11-12

Method for producing a pendulum of a pendulum slide cell pump

 #81
20150285250
2015-10-08

Noise-reduction mechanism for oil pump

 #82
20150285246
2015-10-08

Variable displacement oil pump

 #83
20150267700
2015-09-24

Variable displacement vane pump

 #84
20150260186
2015-09-17

Variable displacement vane pump

 #85
20150252803
2015-09-10

Variable displacement pump

 #86
20150240809
2015-08-27

Variable displacement pump

 #87
20150240808
2015-08-27

Variable displacement vane pump

 #88
20150240806
2015-08-27

Rotary pump with a plastic composite structure

 #89
20150226215
2015-08-13

Variable displacement vane pump and power steering system

 #90
20150218983
2015-08-06

Variable-capacity oil pump and oil supply system using same

 #91
20150204326
2015-07-23

Vane pump unit

 #92
20150167666
2015-06-18

Pendulum slide pump with at least one communication channel

 #93
20150147192
2015-05-28

Vehicle and a method of reducing sound produced by a liquid fluid pump

 #94
20150139841
2015-05-21

Oil Pump

 #95
20150129363
2015-05-14

PUMP AND HYDRODYNAMIC RETARDER EQUIPPED WITH SAID PUMP AND GEAR UNIT EQUIPPED WITH SUCH A PUMP

 #96
20150110659
2015-04-23

Vane pump

 #97
20150078946
2015-03-19

Vane pump

 #98
20150078944
2015-03-19

Variable displacement vane pump

 #99
20150056090
2015-02-26

Variable capacity type vane pump

 #100
20150050173
2015-02-19

Variable displacement pump with double eccentric ring and displacement regulation method

 #101
20150044083
2015-02-12

Variable capacity type vane pump

 #102
20150030486
2015-01-29

Variable capacity vane pump with a rotor and a cam ring rotatable eccentrically relative to a center of the rotor

 #103
20150020759
2015-01-22

Variable displacement pump

 #104
20140294647
2014-10-02

Pre-compression dual spring pump control

 #105
20140248171
2014-09-04

Variable displacement pump having rotating cam ring

 #106
20140219847
2014-08-07

Variable displacement oil pump

 #107
20140199197
2014-07-17

Variable displacement pump with multiple pressure chambers where a circumferential extent of a first portion of a first chamber is greater than a second portion

 #108
20140178231
2014-06-26

First and second pumps in a common housing with parallel flow

 #109
20140178230
2014-06-26

Fixed and variable pumps with parallel flow

 #110
20140170008
2014-06-19

Variable displacement pump

 #111
20140154120
2014-06-05

Internal gear pump including an outer ring having cam protruded parts

 #112
20140154119
2014-06-05

Internal gear pump

 #113
20140147323
2014-05-29

Variable displacement pump

 #114
20140147322
2014-05-29

Variable vane displacement pump utilizing a control valve and a switching valve

 #115
20140119969
2014-05-01

Vane pump

 #116
20140072458
2014-03-13

Variable displacement oil pump

 #117
20140072456
2014-03-13

Variable displacement pump

 #118
20140010697
2014-01-09

Polyetherimide pump

 #119
20130343940
2013-12-26

Hydraulic feed device and hydraulic system

 #120
20130309113
2013-11-21

Multiple stage passive variable displacement vane pump

 #121
20130251584
2013-09-26

Variable displacement pump

 #122
20130251571
2013-09-26

Vane pump

 #123
20130209302
2013-08-15

Oil pump

 #124
20130195705
2013-08-01

Vane pump with multiple control chambers

 #125
20130164163
2013-06-27

Variable displacement pump

 #126
20130164162
2013-06-27

Variable displacement oil pump

 #127
20130149174
2013-06-13

CONTROL CIRCUIT FOR A VARIABLE VANE OIL PUMP

 #128
20130136644
2013-05-30

Oil pump for vehicle

 #129
20130136641
2013-05-30

Variable-displacement lubricant vane pump

 #130
20130121867
2013-05-16

Rotary pump with improved seal

 #131
20130121863
2013-05-16

Adjustable vane pump for reducing pressure pulsations during discharge

 #132
20130078127
2013-03-28

Vane cell pump with vane plate guide crosspieces and synchronization cylinder

 #133
20130071275
2013-03-21

Variable displacement lubricant pump

 #134
20130034460
2013-02-07

Variable Displacement Vane Pump

 #135
20130028770
2013-01-31

Variable displacement pump

 #136
20130022485
2013-01-24

Unified variable displacement oil pump and vacuum pump

 #137
20130017112
2013-01-17

Control circuit for transmission variable displacement pump with improved efficiency

 #138
20130014498
2013-01-17

Variable displacement hydraulic pump control

 #139
20120301342
2012-11-29

Variable displacement vane pump having multiple dampening springs

 #140
20120257962
2012-10-11

POSITIVE DISPLACEMENT PUMP

 #141
20120251342
2012-10-04

Control system and method for pump output pressure control

 #142
20120224956
2012-09-06

PUMP APPARATUS

 #143
20120213655
2012-08-23

Oil Pump

 #144
20120213654
2012-08-23

Adjustable vane cell pump with a slide comprising recesses

 #145
20120199411
2012-08-09

VARIABLE DISPLACEMENT PUMP

 #146
20120148423
2012-06-14

Lubricant pump system

 #147
20120138011
2012-06-07

Lubrication circuit layout

 #148
20120076683
2012-03-29

Structure of Variable Oil Pump

 #149
20120045355
2012-02-23

Variable displacement oil pump

 #150
20110300015
2011-12-08

Vane pump

 #151
20110268595
2011-11-03

Variable capacity vane pump

 #152
20110194967
2011-08-11

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

 #153
20110150672
2011-06-23

Pump apparatus and control method for controlling the pump apparatus

 #154
20110142703
2011-06-16

Variable displacement vane pump

 #155
20110123379
2011-05-26

Variable displacement pump

 #156
20110014078
2011-01-20

Oil pump including rotors that change eccentric positional relationship one-to another to adjust a discharge amount

 #157
20100329912
2010-12-30

Variable capacity vane pump with dual control chambers

 #158
20100322542
2010-12-23

Self-aligning journal bearing

 #159
20100303660
2010-12-02

Variable capacity vane pump

 #160
20100282204
2010-11-11

Variable displacement vane pump

 #161
20100266434
2010-10-21

Flow-controllable cell pump with pivotable control slide valve

 #162
20100232989
2010-09-16

Variable displacement oil pump

 #163
20100226799
2010-09-09

Variable displacement pump

 #164
20100221126
2010-09-02

Variable displacement variable pressure vane pump system

 #165
20100205952
2010-08-19

Variable displacement pump and power steering apparatus using the variable displacement pump

 #166
20100166588
2010-07-01

Vane pump with rotating cam ring and increased under vane pressure

 #167
20100119396
2010-05-13

VARIABLE DISPLACEMENT DUAL VANE PUMP

 #168
20100086424
2010-04-08

Direct control variable displacement vane pump

 #169
20100037602
2010-02-18

Variable displacement pump

 #170
20100034681
2010-02-11

Variable capacity vane pump

 #171
20100028171
2010-02-04

Control system and method for pump output pressure control

 #172
20100008806
2010-01-14

Regulatable vane-cell pump with a sealing web curving in an arc

 #173
20090301887
2009-12-10

Metal part and method of manufacturing metal part

 #174
20090291000
2009-11-26

Variable displacement vane pump

 #175
20090285707
2009-11-19

Variable capacity pump with dual springs

 #176
20090269234
2009-10-29

Vane cell pump and impeller having a chamber wall with a projecting web

 #177
20090269233
2009-10-29

Variable displacement vane pump

 #178
20090269232
2009-10-29

Variable displacement vane pump with enhanced discharge port

 #179
20090257899
2009-10-15

Variable displacement vane pump

 #180
20090208352
2009-08-20

Dual rotor oil pump of an engine with balance weight arrangement

 #181
20090180904
2009-07-16

Pump apparatus

 #182
20090175750
2009-07-09

VARIABLE DELIVERY VANE OIL PUMP, IN PARTICULAR FOR OIL

 #183
20090169409
2009-07-02

Vane machine, in particular vane pump

 #184
20090155113
2009-06-18

VARIABLE DELIVERY VANE OIL PUMP

 #185
20090148309
2009-06-11

Variable displacement pump having a rotating cam ring

 #186
20090142215
2009-06-04

Vane pump with tilting pad radial bearings

 #187
20090110577
2009-04-30

Variable delivery vane oil pump, in particular for oil

 #188
20090101092
2009-04-23

Variable displacement pump, valve timing control device using the variable displacement pump, and valve timing control system using the variable displacement pump, for use in internal combustion engines

 #189
20090081052
2009-03-26

Variable displacement pump

 #190
20090074598
2009-03-19

Variable capacity vane pump with force reducing chamber on displacement ring

 #191
20090053088
2009-02-26

Reduced rotor assembly diameter vane pump

 #192
20090047141
2009-02-19

Variable displacement vane pump

 #193
20090022612
2009-01-22

Variable capacity vane pump with dual control chambers

 #194
20080308062
2008-12-18

Variable displacement pump

 #195
20080304961
2008-12-11

Noise Reduced Variable Displacement Vane Pump

 #196
20080279699
2008-11-13

Controller for a variable displacement feed pump

 #197
20080247894
2008-10-09

Vane pump using line pressure to directly regulate displacement

 #198
20080247882
2008-10-09

Split-pressure dual pump hydraulic fluid supply system for a multi-speed transmission and method

 #199
20080232978
2008-09-25

VARIABLE DISPLACEMENT VANE PUMP

 #200
20080187446
2008-08-07

Pressure regulating variable displacement vane pump

 #201
20080175724
2008-07-24

Vane pump with substantially constant regulated output

 #202
20080118381
2008-05-22

Variable displacement vane pump and method of manufacturing the same

 #203
20080118372
2008-05-22

Variable displacement vane pump

 #204
20080107554
2008-05-08

Pump control using overpressure source

 #205
20080099271
2008-05-01

Variable displacement pump

 #206
20080099270
2008-05-01

Variable displacement pump

 #207
20080014108
2008-01-17

Vane cell pump having pistons guided in cylinder for adjustment of the stator

 #208
20070292291
2007-12-20

Vane cell pump with adjustable output

 #209
20070280842
2007-12-06

Variable displacement pump

 #210
20070224067
2007-09-27

Variable displacement sliding vane pump

 #211
20070224066
2007-09-27

Variable displacement vane pump

 #212
20070212243
2007-09-13

Variable displacement vane pump and method of controlling the same

 #213
20070148029
2007-06-28

Variable displacement vane pump

 #214
20060269423
2006-11-30

Variable displacement pump having a rotating cam ring

 #215
20060099100
2006-05-11

Cam ring bearing for fuel delivery system

 #216
20060034721
2006-02-16

Variable displacement pump

 #217
20050232785
2005-10-20

Device for adjusting the pumping capacity of a lubricant pump for an internal combustion engine

 #218
20050129528
2005-06-16

Variable displacement vane pump with variable target regulator

 #219
20050100447
2005-05-12

Flow control system for a gas turbine engine

 #220
20050063851
2005-03-24

Gerotor pumps and methods of manufacture therefor

 #221
20050047938
2005-03-03

Variable displacement pump with a suction area groove for pushing out rotor vanes

 #222
20050019175
2005-01-27

Variable displacement pump

 #223
20050019174
2005-01-27

Variable displacement pump with communication passage