F04C2270/701 - CPC Classification Index

#1

20220136753

2022-05-05

HEAT PUMP DEVICE, HEAT PUMP SYSTEM, AIR CONDITIONER, AND REFRIGERATION MACHINE

#2

20220106958

2022-04-07

VANE PUMP AND METHOD FOR THE OPERATION THEREOF

#3

20200340473

2020-10-29

Vane pump

#4

20200049145

2020-02-13

Scroll compressor

#5

20190170141

2019-06-06

Vacuum pump with separate oil outlet with relief valve

#6

20190128258

2019-05-02

MULTIPLE LOBE VANE FLUID PUMP HAVING ENHANCED UNDER-VANE CAVITY PRESSURIZATION

#7

20190017507

2019-01-17

Twin vane rotary vacuum pump

#8

20180180045

2018-06-28

Pump and system for supplying a consumer

#9

20180149154

2018-05-31

Vane pump and method for the operation thereof

#10

20180112902

2018-04-26

Compressor crankcase heating control systems and methods

#11

20170328364

2017-11-16

Adjustable vane pump

#12

20170298780

2017-10-19

Thermal energy recovery device and operating method of the same

#13

20160069347

2016-03-10

Method for soft expulsion of a fluid from a compressor at start-up

#14

20160061505

2016-03-03

Compressor crankcase heating control systems and methods

#15

20150184659

2015-07-02

Drive unit for a submersible oil pump, with a fluid passage allowing the fluid in the motor housing to be discharged to the ambient enviroment

#16

20150010419

2015-01-08

Pump having a cold starting device

#17

20140356190

2014-12-04

Method for the start-up control of an electric vacuum pump

#18

20140338380

2014-11-20

Heat pump device, air conditioner, and freezer

#19

20140255209

2014-09-11

Crankcase heater systems and methods for variable speed compressors

#20

20140230467

2014-08-21

Scroll compressor differential pressure control during compressor shutdown transitions

#21

20140174118

2014-06-26

Heat pump device, air conditioner, and refrigerating machine

#22

20130294932

2013-11-07

Oil-flooded screw compressor, motor drive system, and motor control

#23

20130136641

2013-05-30

Variable-displacement lubricant vane pump

#24

20130071266

2013-03-21

Motor-driven compressor

#25

20130068322

2013-03-21

Control valve for an oil-injected screw-type compressor

#26

20120317965

2012-12-20

AUTOMATED HYDRAULIC POWER SYSTEM AND A METHOD OF OPERATING AN AUTOMATED HYDRAULIC POWER SYSTEM

#27

20120316713

2012-12-13

State of charge adjusted compressor control

#28

20120315151

2012-12-13

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

#29

20120224986

2012-09-06

Rotary vane compressor

#30

20120128518

2012-05-24

Scroll compressor having out-of-phase back pressure chamber and compression chamber oil-feeding paths

#31

20120111043

2012-05-10

Air-conditioning apparatus

#32

20120107141

2012-05-03

Motor-driven compressor and controller therefor

#33

20120034121

2012-02-09

Balance plate assembly for a fluid device

#34

20110311384

2011-12-22

TEMPORARY SELF-LUBRICATING COATING FOR SCROLL COMPRESSOR

#35

20110070100

2011-03-24

Crankcase heater systems and methods for variable speed compressors

#36

20100028165

2010-02-04

Oil-flooded screw compressor, motor drive system, and motor control device

#37

20090291010

2009-11-26

Vane pump with housing end wall having an annular groove and a pressure groove that communicate via a curved connecting groove

#38

20090238707

2009-09-24

VANE PUMP

#39

20090214368

2009-08-27

Vacuum Pump

#40

20090191079

2009-07-30

Temporary self-lubricating coating for scroll compressor

#41

20090180913

2009-07-16

Sliding vane pump with internal cam ring

#42

20090082153

2009-03-26

Driving device

#43

20080232981

2008-09-25

Check Valve for a Vacuum Pump

#44

20080066478

2008-03-20

Compressor and air conditioner

#45

20080044275

2008-02-21

PUMP

#46

20070177999

2007-08-02

Electric pump for hydrogen circulation

#47

20060222519

2006-10-05

Pump device

#48

20060198735

2006-09-07

Vacuum pump and method of starting the same

#49

20050260082

2005-11-24

Oil-sealed vane rotary vacuum pump

#50

20050196308

2005-09-08

Hydraulic power steering system for motor vehicles

#51

20050110446

2005-05-26

System and method for starting pump

#52

20050008508

2005-01-13

Vane pump having a pressure compensating valve