ClassID:

143675

F04C28/22 - CPC Classification

Classification description:

Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members

Recent Application in this class:
#1
20250264101
2025-08-21

SCROLL COMPRESSOR

#2
20250215876
2025-07-03

CO-ROTATING SCROLL COMPRESSOR

#3
20210123438
2021-04-29

Fluid transfer apparatus with a plurality of rotor housings arranged at different angularity with the neighboring rotor housings

#4
20200340478
2020-10-29

Vane pump with improved seal assembly for control chamber

#5
20200003214
2020-01-02

Active clearance management in screw compressor

#6
20190285066
2019-09-19

Gaseous fluid compression device

#7
20180245591
2018-08-30

Fluid machinery, heat exchange equipment, and operating method for fluid machinery

#8
20180087509
2018-03-29

Active clearance management in screw compressor

#9
20160186751
2016-06-30

Variable displacement pump

#10
20150267703
2015-09-24

Vane-rotary gas compressor

#11
20150071804
2015-03-12

Variable flow hydraulic machine

#12
20140154119
2014-06-05

Internal gear pump

#13
20140134033
2014-05-15

SCROLL COMPRESSOR

#14
20140134032
2014-05-15

Scroll compressor

#15
20120048230
2012-03-01

Rotary vane engines with movable rotors, and engine systems comprising same

#16
20110187118
2011-08-04

Generation and use of high pressure air

#17
20100047101
2010-02-25

Scroll compressor with extended profile

#18
20090246057
2009-10-01

Scroll compressor having a spring member pressing an eccentric shaft onto a slide face of a slide bush

#19
20090155110
2009-06-18

Scroll compressor with device to limit orbit radius

#20
20070022771
2007-02-01

Cooling system with variable capacity control

#21
20060288715
2006-12-28

Compressor with capacity control

#22
20050129551
2005-06-16

Variable capacity rotary compressor

#23
20050069442
2005-03-31

Variable capacity rotary compressor

#24
20050069422
2005-03-31

Variable capacity rotary compressor

#25
20050047936
2005-03-03

Vane pump, method for adjusting pump flow rate of vane pump and fuel vapor leakage check module having vane pump

#26
20050019191
2005-01-27

Variable capacity rotary compressor

#27
20050019190
2005-01-27

Variable capacity rotary compressor

#28
20050019189
2005-01-27

Variable capacity rotary compressor

#29
20050002815
2005-01-06

Variable capacity rotary compressor

#30
20050002814
2005-01-06

Variable capacity rotary compressor

#31
20050002813
2005-01-06

Variable capacity rotary compressor

#32
17739236
2023-08-29

Radial compliance mechanism to urge orbiting member to any desired direction and star scroll compressor