ClassID:

144151

F04D27/0269 - CPC Classification

Classification description:

Control, e.g. regulation, of pumps, pumping installations or systems; Surge control by changing flow path between different stages or between a plurality of compressors; load distribution between compressors

Recent Application in this class:
#1
20230061958
2023-03-02

Apparatus for optimal loadsharing between parallel gas compressors

#2
20220397118
2022-12-15

PROCESS AND APPARATUS FOR COMPRESSING HYDROGEN GAS IN A HYBRID COMPRESSION SYSTEM

#3
20220397117
2022-12-15

Process and apparatus for operating a compression system

#4
20220307511
2022-09-29

METHOD FOR CONTROLLING AT LEAST ONE RADIAL BLOWER IN A COOLING SYSTEM, AND RADIAL BLOWER

#5
20220260084
2022-08-18

Artificial Intelligent Variable Speed Valves with Sensors and a Network controller

#6
20220220978
2022-07-14

Compressor system

#7
20220186985
2022-06-16

Surge protection for a multistage compressor

#8
20200240405
2020-07-30

System and method for evacuating a process space

#9
20200141418
2020-05-07

Fan flow directing features, systems and methods

#10
20200003220
2020-01-02

Unloading system for variable speed compressor

#11
20190234415
2019-08-01

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#12
20190234414
2019-08-01

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#13
20190234413
2019-08-01

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#14
20190211742
2019-07-11

Internal combustion engine

#15
20180283736
2018-10-04

Low back pressure flow limiter

#16
20180180053
2018-06-28

Method for handling the shutdown of a turbomachine string in a liquefaction plant of a gaseous product

#17
20180179861
2018-06-28

Integrated control of downhole and surface blower systems

#18
20180106260
2018-04-19

Method and apparatus for compressor system pressurization

#19
20170298755
2017-10-19

COMPRESSOR SYSTEM

#20
20170248068
2017-08-31

BYPASS VALVE FOR COMPRESSOR

#21
20170191475
2017-07-06

System and method for controlling a system that includes fixed speed and variable speed compressors

#22
20170152856
2017-06-01

Load sharing control for compressors in series

#23
20170074274
2017-03-16

Method and system for operating a back-to-back compressor with a side stream

#24
20170051661
2017-02-23

Turbocharger with compressor operable in either single-stage mode or two-stage serial mode

#25
20170016385
2017-01-19

Turbocharger arrangement having compressor wheels arranged in parallel and a method for operating a turbocharger arrangement

#26
20160053764
2016-02-25

METHOD FOR CONTROLLING THE COMPRESSION OF AN INCOMING FEED AIR STREAM TO A CRYOGENIC AIR SEPARATION PLANT

#27
20160033197
2016-02-04

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#28
20160033196
2016-02-04

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#29
20150211518
2015-07-30

Compressor system and method of controlling the same

#30
20150147193
2015-05-28

Load sharing control for compressors in series

#31
20150139776
2015-05-21

Compressor control device, compressor system and compressor control method

#32
20140363269
2014-12-11

Compressor control device and control method therefor, and compressor system

#33
20140303805
2014-10-09

System and method for controlling a system that includes fixed speed and variable speed compressors

#34
20140093396
2014-04-03

Gas compressor control system preventing vibration damage

#35
20130195678
2013-08-01

Apparatus and method for controlling compressor, and refrigerator having the same

#36
20130186183
2013-07-25

Leak detection appliance

#37
20130045079
2013-02-21

GAS COMPRESSION

#38
20120260693
2012-10-18

COMPRESSION METHOD AND AIR SEPARATION

#39
20120230840
2012-09-13

Gas compression

#40
20120087810
2012-04-12

Multi-stage centrifugal compressors

#41
20120055184
2012-03-08

CENTRIFUGAL-CHILLER AND METHOD FOR CONTROLLING THE SAME

#42
20120006411
2012-01-12

Fluid compression system

#43
20110314847
2011-12-29

DUAL DUTY COMPRESSION MACHINE

#44
20110228471
2011-09-22

Fan control system and method

#45
20110130883
2011-06-02

Method and apparatus for controlling a compressor and method of cooling a hydrocarbon stream

#46
20110126584
2011-06-02

METHOD AND APPARATUS FOR TREATING A HYDROCARBON STREAM AND METHOD OF COOLING A HYDROCARBON STREAM

#47
20110056210
2011-03-10

Surge margin regulation

#48
20110038737
2011-02-17

MULTI-STAGE COMPRESSOR

#49
20100260616
2010-10-14

Method of controlling counter-rotating axial-flow fan

#50
20100198409
2010-08-05

Sequencing of variable speed compressors in a chilled liquid cooling system for improved energy efficiency

#51
20100178154
2010-07-15

Method and system for controlling a turbocompressor group

#52
20100024456
2010-02-04

Turbo chiller and control method therefor

#53
20090120114
2009-05-14

Compressor with flow control sensor

#54
20090025364
2009-01-29

Multi-Stage Compressor, Air-Separating Apparatus Comprising Such a Compressor, and Installation

#55
20080170948
2008-07-17

Multi-stage compressor/driver system and method of operation

#56
20080131258
2008-06-05

Method for optimizing the functioning of a plurality of compressor units and corresponding device

#57
20080053105
2008-03-06

Bleed valve outlet flow deflector

#58
20080019842
2008-01-24

System and method for controlling compressor flow

#59
20070144172
2007-06-28

Compressor in an exhaust gas turbocharger of an internal combustion engine and method for operating the compressor

#60
20070125082
2007-06-07

Turbocharger compressor with an auxiliary rotor wheel and magnetic clutch

#61
20070065300
2007-03-22

MULTI-STAGE COMPRESSION SYSTEM INCLUDING VARIABLE SPEED MOTORS

#62
20060034715
2006-02-16

Integrated high vacuum pumping system