Patents-Review.com
ClassID:

143510 ⎘

F04C14/185 - 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 varying the useful pumping length of the cooperating members in the axial direction

Recent Application in this class:
#1
20260078755
2026-03-19

ADJUSTABLE PUMP FOR PUMPING A LIQUID FOOD PRODUCT

 #2
20230136689
2023-05-04

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

 #3
20200248685
2020-08-06

Vacuum pressure proportional control valve

 #4
20200141406
2020-05-07

VARIABLE DISPLACEMENT GEAR PUMP

 #5
20200141405
2020-05-07

Variable displacement gear pump

 #6
20200049250
2020-02-13

Continuously variable transmission and transmission system

 #7
20190195220
2019-06-27

Progressing cavity pump and methods of operation

 #8
20180372094
2018-12-27

VARIABLE DISPLACEMENT PUMP WITH AXIAL DISPLACEMENT OF THE VANES

 #9
20180363648
2018-12-20

Rotary Fluid Transfer Apparatus and Associated Methods

 #10
20180223839
2018-08-09

VARIABLE DISPLACEMENT GEAR PUMP

 #11
20180058449
2018-03-01

VARIABLE DISPLACEMENT HYDRAULIC PUMP WITH ELECTROMECHANICAL ACTUATOR AND METHOD THEREOF

 #12
20160363120
2016-12-15

Pump comprising an adjusting device and a control valve for adjusting the delivery volume of the pump

 #13
20160298623
2016-10-13

Internal gear pump with improved communication between inlet and idler and between inlet and rotor

 #14
20160252080
2016-09-01

VARIABLE DISPLACEMENT PUMP

 #15
20150233374
2015-08-20

Rotary Fluid Transfer Apparatus and Associated Methods

 #16
20130129554
2013-05-23

Lubricant pump and control piston

 #17
20130039794
2013-02-14

Gear pump with continuous variable output flow rate

 #18
20120244027
2012-09-27

Pump device

 #19
20120219448
2012-08-30

Adjustable rotary pump with reduced wear

 #20
20120121450
2012-05-17

SCREW SPINDLE PUMP ARRANGEMENT

 #21
20120107162
2012-05-03

Variable capacity fluidic machine

 #22
20120020825
2012-01-26

Displacement pump with suction groove

 #23
20120003107
2012-01-05

Pumps and pump heads comprising volume-compensation feature

 #24
20110182760
2011-07-28

Adjustable rotary pump with reduced wear

 #25
20110038746
2011-02-17

VARIABLE-VOLUME INTERNAL GEAR PUMP

 #26
20100086422
2010-04-08

Gear pump enabling efficient pump capacity change

 #27
20090123314
2009-05-14

Oil pump for an internal combustion engine

 #28
20090110584
2009-04-30

High pressure telescoping gear pumps and motors

 #29
20090041605
2009-02-12

Adjusting valve for adjusting the delivery volume of a displacement pump

 #30
20080166251
2008-07-10

Variable capacity gerotor pump

 #31
20080044308
2008-02-21

Gear pump

 #32
20080038136
2008-02-14

Long life telescoping gear pumps and motors

 #33
20080031763
2008-02-07

Variable capacity pump/motor

 #34
20080025862
2008-01-31

External toothed wheel pump comprising a relieving pocket

 #35
20070248481
2007-10-25

ADJUSTABLE ROTARY PUMP WITH REDUCED WEAR

 #36
20070111855
2007-05-17

Engine speed-dependent pressure regulation of oil pumps

 #37
20070009372
2007-01-11

Oil pump for an internal combustion engine

 #38
20060185356
2006-08-24

Hydraulic hybrid powertrain system

 #39
20050226757
2005-10-13

Variable capacity pump/motor

 #40
20050142006
2005-06-30

Device for pressure regulation of hydraulic pumps