ClassID:

143678

F04C28/265 - CPC Classification

Classification description:

Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels being obtained by displacing a lateral sealing face

Recent Application in this class:
#1
20250084845
2025-03-13

VARIABLE CAPACITY BYPASS VALVE FOR SCREW COMPRESSOR

#2
20230193902
2023-06-22

Scroll compressor

#3
20220034317
2022-02-03

Compressor having capacity modulation

#4
20210270269
2021-09-02

Slide valve, slide valve adjustment mechanism and screw compressor

#5
20210164470
2021-06-03

Compressor having capacity modulation assembly

#6
20210010472
2021-01-14

Compressor having capacity modulation

#7
20200217318
2020-07-09

Liquid-ring compressor including bypass pipe

#8
20190376472
2019-12-12

High-pressure pump

#9
20190219055
2019-07-18

Scroll compressor having a capacity variable device

#10
20180363651
2018-12-20

Scroll compressor

#11
20180149155
2018-05-31

Compressor having capacity modulation assembly

#12
20180119601
2018-05-03

Two-stage oil-injected screw air compressor

#13
20180119600
2018-05-03

Oil-injected screw air compressor

#14
20170002817
2017-01-05

Compressor with thermal protection system

#15
20160076543
2016-03-17

Compressor having capacity modulation assembly

#16
20160032924
2016-02-04

Capacity modulated scroll compressor

#17
20150267701
2015-09-24

Motor-pump unit

#18
20140348682
2014-11-27

Scroll-type compressor and CO2 vehicle air conditioning system having a scroll-type compressor

#19
20140199199
2014-07-17

Gas pump with pressure relief for reducing the starting torque

#20
20140072466
2014-03-13

Compressor having capacity modulation assembly

#21
20140064999
2014-03-06

Capacity modulated scroll compressor

#22
20120195781
2012-08-02

Compressor having capacity modulation system

#23
20120148433
2012-06-14

Floating apparatus for scroll compressors

#24
20110268597
2011-11-03

Compressor having capacity modulation assembly

#25
20110256009
2011-10-20

Compressor having capacity modulation system

#26
20110194965
2011-08-11

Lubrication of a scroll compressor

#27
20110033328
2011-02-10

Compressor having capacity modulation system

#28
20100254841
2010-10-07

Compressor having capacity modulation assembly

#29
20090311119
2009-12-17

Screw Compressor Capacity Control

#30
20090297378
2009-12-03

Compressor having capacity modulation system

#31
20090297377
2009-12-03

Compressor having capacity modulation system

#32
20080286118
2008-11-20

Capacity modulated scroll compressor system and method

#33
20080175737
2008-07-24

Scroll machine with seal

#34
20080038134
2008-02-14

Scroll compressor having a position adjustment device urging the stationary scroll towards the movable scroll by moving a seal formed between a support and the stationary scroll

#35
20070269326
2007-11-22

Dual volume-ratio scroll machine

#36
20070110605
2007-05-17

Scroll compressor having a position adjustment device urging the movable scroll towards the stationary scroll by moving a seal formed between a support and the movable scroll

#37
20070104604
2007-05-10

Scroll fluid machine having an adjustment member with a deformable element

#38
20070036661
2007-02-15

Capacity modulated scroll compressor

#39
20070022771
2007-02-01

Cooling system with variable capacity control

#40
20060288715
2006-12-28

Compressor with capacity control

#41
20060280627
2006-12-14

Control and protection system for a variable capacity compressor

#42
20060204380
2006-09-14

Dual volume-ratio scroll machine

#43
20060204379
2006-09-14

Dual volume-ratio scroll machine

#44
20060198748
2006-09-07

Scroll machine with single plate floating seal

#45
20060099097
2006-05-11

Apparatus for varying capacity of scroll compressor

#46
20050265880
2005-12-01

Backpressure mechanism of scroll type compressor

#47
20050147514
2005-07-07

Scroll compressor with enlarged vapor injection port area