Patents-Review.com
ClassID:

143512 ⎘

F04C14/22 - 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

Sub-classes:
Recent Application in this class:
#1
20260083958
2026-03-26

FLUID PUMP CHANGEABLE IN DIAMETER, IN PARTICULAR FOR MEDICAL APPLICATION

 #2
20240369060
2024-11-07

Variable Displacement Oil Pump

 #3
20240352932
2024-10-24

Variable-capacity oil pump

 #4
20240149048
2024-05-09

FLUID PUMP CHANGEABLE IN DIAMETER, IN PARTICULAR FOR MEDICAL APPLICATION

 #5
20240093685
2024-03-21

Progressive cavity pump

 #6
20230241372
2023-08-03

Fluid pump changeable in diameter, in particular for medical application

 #7
20220307497
2022-09-29

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

 #8
20220233839
2022-07-28

Fluid pump changeable in diameter, in particular for medical application

 #9
20220228588
2022-07-21

Variable displacement lubricant pump

 #10
20220145883
2022-05-12

Vane pump

 #11
20210380270
2021-12-09

Power generation controller of aircraft

 #12
20210162198
2021-06-03

Fluid pump changeable in diameter, in particular for medical application

 #13
20210123438
2021-04-29

Fluid transfer apparatus with a plurality of rotor housings arranged at different angularity with the neighboring rotor housings

 #14
20210115919
2021-04-22

Automotive liquid pendulum vane pump

 #15
20210010471
2021-01-14

Apparatus for a counterbalance for an eccentric motor

 #16
20200340474
2020-10-29

Vane cell pump comprising a pressure equalization connection

 #17
20200332657
2020-10-22

Liquid pump capable of achieving pressure equilibrium

 #18
20200080555
2020-03-12

Variable Displacement Pump

 #19
20200032791
2020-01-30

SPRING STRUCTURE WITH SLIDING ELEMENT

 #20
20190390670
2019-12-26

VARIABLE DISPLACEMENT VANE PUMP

 #21
20190338771
2019-11-07

VARIABLE DISPLACEMENT PUMP

 #22
20190336664
2019-11-07

Fluid pump changeable in diameter, in particular for medical application

 #23
20190293069
2019-09-26

Automotive variable mechanical lubricant pump

 #24
20190226479
2019-07-25

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

 #25
20190224391
2019-07-25

Fluid pump changeable in diameter, in particular for medical application

 #26
20190219053
2019-07-18

VARIABLE CAPACITY PUMP AND WORKING OIL SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINE

 #27
20190017596
2019-01-17

Hydraulic control apparatus and hydraulic control method

 #28
20180258930
2018-09-13

Variable displacement-type oil pump

 #29
20180230870
2018-08-16

Engine oil pump with electronic oil pressure control

 #30
20180223840
2018-08-09

Variable capacity oil pump

 #31
20180066747
2018-03-08

Hydraulic controller for an actuator in a vehicle gearbox

 #32
20180010605
2018-01-11

Variable displacement vane pump with thermo-compensation

 #33
20170328365
2017-11-16

Variable displacement oil pump

 #34
20170306948
2017-10-26

Multiple Pressure Variable Displacement Pump with Mechanical Control

 #35
20170159657
2017-06-08

Variable displacement vane pump

 #36
20170014562
2017-01-19

Fluid pump changeable in diameter, in particular for medical application

 #37
20160290335
2016-10-06

VARIABLE DISPLACEMENT LUBRICANT PUMP

 #38
20160265527
2016-09-15

OIL PUMP

 #39
20160252090
2016-09-01

VARIABLE DISPLACEMENT LUBRICANT PUMP

 #40
20160230620
2016-08-11

Method for operating a gear pump, and gear pump

 #41
20160194958
2016-07-07

Rotary expansible chamber devices and systems incorporating the same

 #42
20160186751
2016-06-30

Variable displacement pump

 #43
20160186623
2016-06-30

Variable displacement vane pump with integrated fail safe function

 #44
20160153449
2016-06-02

Vehicular hydraulics supply device

 #45
20160138591
2016-05-19

Variable flow engine oil pump

 #46
20160116059
2016-04-28

Variable displacement pump and gearbox control system

 #47
20160115832
2016-04-28

Variable displacement lubricant pump

 #48
20160069346
2016-03-10

Variable displacement vane pump with thermo-compensation

 #49
20160047280
2016-02-18

Lubricant vane pump

 #50
20160040665
2016-02-11

Hydraulic conveying device and hydraulic system

 #51
20160032923
2016-02-04

OIL PUMP

 #52
20150322943
2015-11-12

Method for producing a pendulum of a pendulum slide cell pump

 #53
20150285246
2015-10-08

Variable displacement oil pump

 #54
20150247405
2015-09-03

Refrigeration system including a rotary expansible chamber device having adjustable working-fluid ports

 #55
20150226234
2015-08-13

Hydraulic actuator system

 #56
20150176582
2015-06-25

Fluid pump changeable in diameter, in particular for medical application

 #57
20150167666
2015-06-18

Pendulum slide pump with at least one communication channel

 #58
20150098851
2015-04-09

Rotary expansible chamber devices having adjustable arcs of rotation, and systems incorporating the same

 #59
20150071804
2015-03-12

Variable flow hydraulic machine

 #60
20140377116
2014-12-25

Variable vane pump with communication groove in the cam ring

 #61
20140341768
2014-11-20

Sealing device for a cam ring of a variable displacement pump

 #62
20140261716
2014-09-18

Systems and methods for fluid pump outlet pressure regulation

 #63
20140241927
2014-08-28

Vane-type hydraulic device having vane formed with engaging groove

 #64
20140023539
2014-01-23

Variable oil pump with improved partitioning section

 #65
20130343940
2013-12-26

Hydraulic feed device and hydraulic system

 #66
20130251580
2013-09-26

Pendulum-slide pump having variable groove radii greater in transition than therebetween

 #67
20130112174
2013-05-09

Fuel delivery device

 #68
20130039790
2013-02-14

Variable displacement lubricant pump

 #69
20120093628
2012-04-19

Fluid pump changeable in diameter, in particular for medical application

 #70
20120051955
2012-03-01

Integrated electric vane oil pump

 #71
20110286862
2011-11-24

PUMP FOR A LUBRICATING SYSTEM OF A COMBUSTION ENGINE

 #72
20110189043
2011-08-04

VANE PUMP

 #73
20110165010
2011-07-07

VANE PUMP

 #74
20110150684
2011-06-23

Variable displacement vane pump

 #75
20110150682
2011-06-23

Cam bearing flow control for rotating cam ring vane pump

 #76
20110085921
2011-04-14

Apparatus having control valve and variable capacitance pump and hydraulic pressure circuit of internal combustion engine in which the same apparatus is used

 #77
20100310403
2010-12-09

Oscillating variable displacement ring pump

 #78
20100054977
2010-03-04

Variable displacement pump

 #79
20100037602
2010-02-18

Variable displacement pump

 #80
20090324438
2009-12-31

Variable flow pumping system

 #81
20090175750
2009-07-09

VARIABLE DELIVERY VANE OIL PUMP, IN PARTICULAR FOR OIL

 #82
20090155113
2009-06-18

VARIABLE DELIVERY VANE OIL PUMP

 #83
20090110577
2009-04-30

Variable delivery vane oil pump, in particular for oil

 #84
20080240960
2008-10-02

Pump

 #85
20070297919
2007-12-27

Oscillating variable displacement ring pump

 #86
20070231161
2007-10-04

Pump with Selectable Outlet Pressure

 #87
20060127229
2006-06-15

Variable displacement pump and control therefor

 #88
20060104823
2006-05-18

Hydraulic pump with variable flow and variable pressure and electric control

 #89
20050249624
2005-11-10

Piston rotary pump of variable flow