ClassID:

143670

F04C28/14 - CPC Classification

Classification description:

Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using rotating valves

Recent Application in this class:
#1
20220243730
2022-08-04

Scroll compressor

#2
20210372406
2021-12-02

Variable compressor housing

#3
20210164471
2021-06-03

COMPRESSOR

#4
20210079915
2021-03-18

ELECTRONIC CAPACITY CONTROL VALVE FOR PORTABLE SCREW COMPRESSOR

#5
20200132074
2020-04-30

Rotary compressors with variable speed and volume control

#6
20190338773
2019-11-07

Rotary displacement compressor having a check valve and a backflow control valve arranged in series through a discharge pipe

#7
20180017060
2018-01-18

Variable volume ratio compressor

#8
20160265533
2016-09-15

SPIRAL VALVE ACTUATOR FOR AIR COMPRESSOR

#9
20160258435
2016-09-08

Claw pump

#10
20140377113
2014-12-25

Pump and/or compressor arrangement including mating, oscillatable vane members for the simultaneous admission and discharge of fluid

#11
20140093396
2014-04-03

Gas compressor control system preventing vibration damage

#12
20130156624
2013-06-20

Slide valve for screw compressor

#13
20110236232
2011-09-29

Air compression device

#14
20100183453
2010-07-22

Scroll compressor with three-step capacity control

#15
20090071183
2009-03-19

CAPACITY MODULATED COMPRESSOR

#16
20080107556
2008-05-08

Rotary compressor for changing compression capacity

#17
20070280843
2007-12-06

Rotary compressor for changing compression capacity

#18
20070180841
2007-08-09

System for controlling compressor of cooling system and method for controlling the same

#19
20070160486
2007-07-12

Variable capacity rotary compressor

#20
20070154328
2007-07-05

Rotary compressor

#21
20070122284
2007-05-31

Rotary compressor having two compression capacities

#22
20060210418
2006-09-21

Variable capacity rotary compressor

#23
20060198749
2006-09-07

Capacity-changing unit of orbiting vane compressor

#24
20050019179
2005-01-27

Variable capacity scroll compressor