Patents-Review.com
ClassID:

144030 ⎘

F04D15/0022 - CPC Classification

Classification description:

Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening

Recent Application in this class:
#1
20250290518
2025-09-18

VARIABLE ORIFICE FLOW DEVICES FOR CONSTANT FLOW FLOWLINES

 #2
20250283470
2025-09-11

Valve Pump Unit

 #3
20250059984
2025-02-20

CONFIGURABLE BI-DIRECTIONAL AIRFLOW FAN

 #4
20240209860
2024-06-27

HYDRAULIC SYSTEM FOR A HOUSEHOLD APPLIANCE

 #5
20240102491
2024-03-28

Configurable bi-directional airflow fan

 #6
20240084818
2024-03-14

Variable pipe diffuser

 #7
20230358239
2023-11-09

Variable mechanical automotive coolant pump

 #8
20230120401
2023-04-20

MODULAR

 #9
20230049932
2023-02-16

Centrifugal pump

 #10
20220403848
2022-12-22

SAFEGUARD FOR FUEL PUMP

 #11
20220390139
2022-12-08

Blower with adjustable cutoff plate

 #12
20220356884
2022-11-10

PISTON ROD SEAL

 #13
20220042513
2022-02-10

Multistage pump with axial thrust optimization

 #14
20210324862
2021-10-21

CENTRIFUGAL PUMP FOR CONVEYING A FLUID

 #15
20210301813
2021-09-30

Gas lock removal method for electrical submersible pumps

 #16
20210239128
2021-08-05

Single suction centrifugal blower

 #17
20210239123
2021-08-05

Energy-saving optimization for a pumping plant

 #18
20210140672
2021-05-13

Blower with adjustable cutoff plate

 #19
20210095675
2021-04-01

ELECTRONIC CONTROLLED SPIRAL VALVE CAPACITY MODULATION FOR A PORTABLE SCREW COMPRESSOR

 #20
20210025400
2021-01-28

Device for protecting an electric pump against overpressures

 #21
20210010477
2021-01-14

Centrifugal pump unit and method for moving a valve element in a pump unit

 #22
20200340684
2020-10-29

Circulation pump assembly

 #23
20200340482
2020-10-29

Controllable coolant pump for a main delivery circuit and a secondary delivery circuit

 #24
20200309135
2020-10-01

High Flow and Low NPSHr Horizontal Pump with Priming Module

 #25
20200300179
2020-09-24

Rotodynamic pump having a body defining a body cavity with a first and second housing portion defining a portion of an impeller cavity and disposed within the body cavity wherein the body cavity extends at least in part around the second housing portion and the housing portions defining an impeller clearance

 #26
20200263599
2020-08-20

Valve assembly for a dual volute turbocharger and dual volute turbocharger including the same

 #27
20200263597
2020-08-20

Temperature responsive variable water pump and engine cooling system

 #28
20200116161
2020-04-16

Centrifugal pump assembly

 #29
20200109792
2020-04-09

Non-return valve

 #30
20200102970
2020-04-02

WATER PUMP

 #31
20200072238
2020-03-05

Pump assembly

 #32
20200072223
2020-03-05

Centrifugal pump assembly

 #33
20200040799
2020-02-06

WATER PUMP

 #34
20200030809
2020-01-30

PUMPING AND COMMINUTION DEVICE, METHOD OF COMMINUTING AND HEATING AN INFLOW MATERIAL, AND USE OF SAME

 #35
20200024793
2020-01-23

Washing machine

 #36
20190345867
2019-11-14

Motor vehicle

 #37
20190331131
2019-10-31

Pump with variable flow diverter that forms volute

 #38
20190277183
2019-09-12

Electric coolant pump

 #39
20190264710
2019-08-29

Turbocharger compressor having adjustable trim mechanism including vortex reducers

 #40
20190249881
2019-08-15

Circulation pump assembly for a heating and/or cooling system

 #41
20190186339
2019-06-20

WATER PUMP FOR VEHICLE

 #42
20190134548
2019-05-09

BLOWING UNIT FOR AIR CLEANER AND AIR CLEANER INCLUDING THE SAME

 #43
20190107110
2019-04-11

Gas estimation device and vacuum pumping device

 #44
20180306192
2018-10-25

DELIVERY DEVICE FOR A VACUUM DISTILLATION PLANT

 #45
20180238130
2018-08-23

Proportional control of rig drilling mud flow

 #46
20180172009
2018-06-21

Valve assembly integrated into a coolant pump and method for controlling the same

 #47
20180149171
2018-05-31

Pump having a plurality of adjustable outlet openings

 #48
20180104864
2018-04-19

Method for finding a target conveying capacity of a pumping system

 #49
20180023575
2018-01-25

Methods, devices, and systems for controlling a valve

 #50
20170356449
2017-12-14

Hydraulic system

 #51
20170336081
2017-11-23

Hydraulic system

 #52
20170335851
2017-11-23

Solar powered pumping system

 #53
20170204866
2017-07-20

Variable speed pumping system with pressure independent control valves

 #54
20170120202
2017-05-04

BATHWATER CIRCULATING SYSTEM AND METHOD OF OPERATING SAME

 #55
20170108135
2017-04-20

Non-return valve for a water supply system having a sealing body movably connected to a holder's receiver opening by one or more limbs and lugs

 #56
20170045897
2017-02-16

Performance monitoring of pump-valve system

 #57
20160319819
2016-11-03

Pump

 #58
20160273542
2016-09-22

Rotary pump with axially displaceable, closeable rotor

 #59
20160215679
2016-07-28

ADJUSTABLE COOLANT PUMP

 #60
20160186670
2016-06-30

Fuel System

 #61
20160177958
2016-06-23

Operating method for a pump, in particular for a multiphase pump, and pump

 #62
20160123351
2016-05-05

Boosting system, and boosting method of gas

 #63
20160123347
2016-05-05

Linkage to actuate inlet guide vanes

 #64
20150337715
2015-11-26

Mechanical coolant pump

 #65
20150247504
2015-09-03

Bilge pump arrangement having back flow preventer

 #66
20150125313
2015-05-07

Pressure compensation control of a fixed displacement pump in a pumping and metering system and associated method

 #67
20150122345
2015-05-07

Circulation pump assembly for a heating and/or cooling system

 #68
20150093240
2015-04-02

Mechanical coolant pump

 #69
20150016967
2015-01-15

Mechanical coolant pump

 #70
20150016966
2015-01-15

Mechanical coolant pump

 #71
20140212267
2014-07-31

Controllable coolant pump

 #72
20140199159
2014-07-17

Well pump system

 #73
20140037426
2014-02-06

Method for controlling a regulated-rotation-speed low-pressure centrifugal fan

 #74
20130129480
2013-05-23

Compression apparatus

 #75
20130037121
2013-02-14

Decoupling of controlled variables in a fluid conveying system with dead time

 #76
20130037119
2013-02-14

Valve control of pump inlet pressure with bootstrap reservoir

 #77
20130011250
2013-01-10

MECHANICAL COOLANT PUMP

 #78
20120192816
2012-08-02

Mechanical coolant pump

 #79
20120076637
2012-03-29

Variable flow rate pump

 #80
20120055652
2012-03-08

Rotary slide valve with a thermostatic bypass

 #81
20120018006
2012-01-26

MACHINE FOR FLUID TRANSPORTATION

 #82
20110303297
2011-12-15

Flow-ducting unit with pump and fitting

 #83
20110146799
2011-06-23

Method and system for controlling a process fluid stream and positioner

 #84
20110088638
2011-04-21

Pump apparatus

 #85
20110085918
2011-04-14

Water-lifting pump apparatus and method of controlling operation thereof

 #86
20100260622
2010-10-14

Energy conversion hydraulic plant and method for controlling such plant

 #87
20100019485
2010-01-28

Fluid coupler including valve arrangement for connecting intake conduit of sprayer to transfer conduit of nurse tank during refill operation

 #88
20090318748
2009-12-24

Pump for Blood Perfusion

 #89
20090047157
2009-02-19

Dual zone flow choke for downhole motors

 #90
20070292278
2007-12-20

Axial Flow Pump and Marine Propulsion Device

 #91
20070212230
2007-09-13

Method for optimizing valve position and pump speed in a PID control valve system without the use of external signals

 #92
20070122290
2007-05-31

Water-lifting pump apparatus and method for controlling operation thereof

 #93
20070071617
2007-03-29

Drain pump for home appliances

 #94
20070017559
2007-01-25

Washer fluid spraying apparatus

 #95
20060133941
2006-06-22

Pressure regulated method for preventing cavitations in a technical system

 #96
20050142001
2005-06-30

Axial flow pump or marine propulsion device

 #97
20050061268
2005-03-24

Pump/valve assembly and a cooling circuit containing such an assembly

 #98
18982333
2026-02-03

Dual pump system and method to control wavesolder contact length

 #99
17401528
2023-01-17

Compressor including inlet guide vanes