F04D15/0027 - CPC Classification Index

ClassID:

144031 ⎘

F04D15/0027 - CPC Classification

Classification description:

Control, e.g. regulation, of pumps, pumping installations or systems Varying behaviour or the very pump

Sub-classes:

F04D15/0033 » {By-passing by increasing clearance between impeller and its casing} 19
F04D15/0038 » {by varying the effective cross-sectional area of flow through the rotor} 56
F04D15/0044 » {by introducing a gas} 4
F04D15/005 » {the pumps being of the circumferential flow type} 5

Recent Application in this class:

20260110304

2026-04-23

COOLING DISTRIBUTION UNIT PUMP EFFICIENCY OPTIMIZATION

20260002374

2026-01-01

HAND-HELD SWIMMING POOL CLEANING APPARATUS AND CONTROL METHOD THEREOF

20250067267

2025-02-27

FLUID PRESSURE COMPENSATION APPARATUS

20240228258

2024-07-11

SYSTEM AND METHOD FOR GENERATING A DRIVE SIGNAL

20240110567

2024-04-04

MEASUREMENT ASSEMBLIES AND METHODS FOR MEASURING NOSE GAP IN PUMPS

20230303381

2023-09-28

System and method for generating a drive signal

20230087279

2023-03-23

Method of Filling A Medical Washer/Disinfector

20230003222

2023-01-05

Variable geometry turbocharger

20220356888

2022-11-10

Pump front chamber automatic compensation device for improving closed impeller backflow

#10

20220154732

2022-05-19

Centrifugal pump operation

#11

20220127129

2022-04-28

System and method for generating a drive signal

#12

20220090592

2022-03-24

Vacuum pumping

#13

20220043467

2022-02-10

Bypass mechanism for automatic pool cleaners

#14

20210270288

2021-09-02

Conveying device

#15

20210268263

2021-09-02

Pumping device for pumping liquids, comprising a centrifugal pump with a radially pumping pump wheel with a hollow center

#16

20210148367

2021-05-20

Variable-delivery pump device and circuit including such a pump

#17

20210079928

2021-03-18

Adaptive volutes for centrifugal pumps

#18

20200346916

2020-11-05

System and method for generating a drive signal

#19

20200248697

2020-08-06

COMBINED-PURPOSE PRESSURE BOOSTER PUMP

#20

20200182309

2020-06-11

Viscous coupling for a coolant pump

#21

20200049152

2020-02-13

Variable speed pumping control system with active temperature and vibration monitoring and control means

#22

20190169015

2019-06-06

System and method for generating a drive signal

#23

20190162190

2019-05-30

Spring regulated variable flow electric water pump

#24

20190120241

2019-04-25

Assembly blower and associated method

#25

20190120234

2019-04-25

Water pumping control device and system

#26

20190075976

2019-03-14

Rotary unit for selectively adding additives to water in a conventional bathtub automatically

#27

20190072116

2019-03-07

Hydraulically powered rotary actuator

#28

20190048945

2019-02-14

Viscous coupling for a coolant pump

#29

20180313365

2018-11-01

FLUID CIRCULATOR WITH DISPLAY

#30

20180231004

2018-08-16

Reducing centrifugal pump bearing wear through dynamic magnetic coupling

#31

20180120884

2018-05-03

Variable ratio charge pump with peak current and average current limiting circuitry

#32

20180003182

2018-01-04

Multi-stage impeller assembly for pump

#33

20170299123

2017-10-19

PUMP STATION AND PIPELINE OPTIMIZATION

#34

20170284387

2017-10-05

Hydraulic pump malfunction diagnosing device

#35

20170276138

2017-09-28

Multi-outlet fluid flow system for an appliance incorporating a bi-directional motor

#36

20170217750

2017-08-03

System and method for generating a drive signal

#37

20170045054

2017-02-16

Reducing centrifugal pump bearing wear through dynamic magnetic coupling

#38

20170037853

2017-02-09

Pump assembly for recirculating a cooling fluid of a heat engine

#39

20160341203

2016-11-24

Control of clutched device using magnetic force from motor

#40

20160290340

2016-10-06

SPRING REGULATED VARIABLE FLOW ELECTRIC WATER PUMP

#41

20160265538

2016-09-15

Electric pump having circuit board

#42

20160195092

2016-07-07

Performance map control of centrifugal pumps

#43

20160084254

2016-03-24

Gas lock resolution during operation of an electric submersible pump

#44

20150301534

2015-10-22

Pipeline system for fluids

#45

20140322042

2014-10-30

Switchable automotive coolant pump

#46

20140010672

2014-01-09

Reducing centrifugal pump bearing wear through dynamic magnetic coupling

#47

20130294931

2013-11-07

Pump control unit located in the power cord and compatible with multiple pump units

#48

20130243566

2013-09-19

Pump, pump system, method of controlling pump, and cooling system

#49

20130034427

2013-02-07

Adjustable mechanical coolant pump

#50

20130011237

2013-01-10

Energy saving pump with multiple impellers

#51

20120204818

2012-08-16

Coolant pump which exhibits an adjustable delivery volume

#52

20120109370

2012-05-03

System and method for generating a drive signal

#53

20110232593

2011-09-29

Pump

#54

20110182757

2011-07-28

APPARATUS FOR A PUMP, AND A WATER PUMP

#55

20110163125

2011-07-07

System and method for generating a drive signal

#56

20100189572

2010-07-29

Pump assembly having an integrated user interface

#57

20090155042

2009-06-18

Multi functional pump for pumping molten metal

#58

20090107562

2009-04-30

Pre-pressurized self-balanced negative-pressure-free water-supply apparatus

#59

20080236517

2008-10-02

Water pump and control method for same

#60

20080054837

2008-03-06

System and method for generating a drive signal

#61

20060198725

2006-09-07

Multi functional pump for pumping molten metal

#62

20060104841

2006-05-18

Pump stabilizer and method

#63

20050110655

2005-05-26

RF communication with downhole equipment

#64

20050106040

2005-05-19

Thermal control of flowrate in engine coolant system