F04C2270/07 - CPC Classification Index

ClassID:

143873 ⎘

F04C2270/07 - CPC Classification

Classification description:

Control; Monitoring or safety arrangements Electric current

Sub-classes:

F04C2270/075 » Controlled or regulated 14

Recent Application in this class:

20250327448

2025-10-23

Screw Compressor

20230349378

2023-11-02

Fault rectification method for a progressive cavity pump of a conveyor device for conveying viscous building materials

20230040215

2023-02-09

Electric oil pump and control system thereof

20210381505

2021-12-09

Method of monitoring a volume index valve of a compressor and diagnostic system

20210215157

2021-07-15

Device for pumping fluid

20210140317

2021-05-13

Rotating heating chamber apparatus and method of use thereof

20200408218

2020-12-31

Method and apparatus for pressure equalization in rotary compressors

20190271315

2019-09-05

Method for operating a rolling piston compressor

20180347879

2018-12-06

Air conditioner provided with means for predicting and detecting failure in compressor and method for predicting and detecting the failure

#10

20180320690

2018-11-08

Diagnostic system

#11

20180306196

2018-10-25

Method and apparatus for pressure equalization in rotary compressors

#12

20160226416

2016-08-04

Compressor having a control and diagnostic module

#13

20150155701

2015-06-04

System and method for compressor motor protection

#14

20140229014

2014-08-14

Compressor data module

#15

20130129527

2013-05-23

Robust electric screw compressor blocked air line detection via motor current monitoring

#16

20130064684

2013-03-14

CONTROLLER OF COMPRESSOR

#17

20120316713

2012-12-13

State of charge adjusted compressor control

#18

20120315151

2012-12-13

Current control via speed control for driving screw compressor under cold conditions

#19

20120211093

2012-08-23

PUMP ASSEMBLIES WITH FREEZE-PREVENTIVE HEATING

#20

20120209569

2012-08-16

Method for predicting a rotation fault in the rotor of a vacuum pump, and associated pumping device

#21

20120177514

2012-07-12

DISCHARGE PRESSURE ESTIMATION FOR COMPRESSOR

#22

20120047999

2012-03-01

Vane pump apparatus and leak check system having the same

#23

20110211981

2011-09-01

Inverter-Integrated Electric Compressor

#24

20110211980

2011-09-01

Inverter Integrated Electric Compressor

#25

20110206544

2011-08-25

Inverter-integrated electric compressor

#26

20100293397

2010-11-18

Diagnostic system

#27

20100205952

2010-08-19

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

#28

20100101250

2010-04-29

Compressor diagnostic system

#29

20090317261

2009-12-24

Pumping system and method of operation

#30

20080216494

2008-09-11

COMPRESSOR DATA MODULE

#31

20080145240

2008-06-19

Control system and method for protection against breakage of lubricanting-oil film in compressor bearings

#32

20080063534

2008-03-13

OPERATION CONTROL DEVICE AND METHOD OF VACUUM PUMPS

#33

20060222506

2006-10-05

Rapidly pumping out an enclosure while limiting energy consumption

#34

20060080978

2006-04-20

Compressor diagnostic system

#35

20060016200

2006-01-26

Compressor diagnostic method

#36

20050265860

2005-12-01

Motor-mounted internal gear pump and electronic device

#37

20050253474

2005-11-17

Synchronous induction motor and manufacturing method and drive unit for the same, and hermetic electric compressor

#38

20050163623

2005-07-28

Air supply apparatus for stable air supply

#39

20050107984

2005-05-19

Manufacturing apparatus and method for predicting life of rotary machine used in the same