ClassID:

159069

F25B1/047 - CPC Classification

Classification description:

Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type

Recent Application in this class:
#1
20250341213
2025-11-06

DIRECT DRIVE REFRIGERANT SCREW COMPRESSOR WITH REFRIGERANT LUBRICATED ROTORS

#2
20250129784
2025-04-24

MULTI-STAGE COMPRESSOR HAVING INTERSTAGE LUBRICANT INJECTION VIA AN INJECTION ROD

#3
20250020367
2025-01-16

ROTARY HEAT EXCHANGER

#4
20240191714
2024-06-13

Element, device and method for compressing gas to be compressed having a low temperature

#5
20240141896
2024-05-02

Multi-stage screw compressor

#6
20240110565
2024-04-04

Rotor assembly, compressor and air conditioner

#7
20240102472
2024-03-28

DIRECT DRIVE REFRIGERANT SCREW COMPRESSOR WITH REFRIGERANT LUBRICATED ROTORS

#8
20240068475
2024-02-29

Screw compressor having working chamber closing member to regulate suction working medium flow to a working chamber

#9
20240018961
2024-01-18

Compressor containing oil separator with multiple internal muffler spaces

#10
20240003347
2024-01-04

Multi-stage compressor having interstage lubricant injection via an injection rod

#11
20230228269
2023-07-20

Variable capacity screw compressor and method

#12
20230184466
2023-06-15

Rotary heat exchanger

#13
20230138965
2023-05-04

Screw compressor, refrigeration system, and method for controlling refrigeration system

#14
20220275974
2022-09-01

ZERO-LOAD OUTPUT NON-STOP CONTROL METHOD AND APPARATUS, AND UNIT

#15
20220235987
2022-07-28

Freezing device

#16
20220120278
2022-04-21

Multi-stage compressor having interstage lubricant injection via an injection rod

#17
20220090829
2022-03-24

High performance compressors and vapor compression systems

#18
20220065252
2022-03-03

Direct drive refrigerant screw compressor with refrigerant lubricated rotors

#19
20210396436
2021-12-23

LUBRICANT MANAGEMENT FOR AN HVACR SYSTEM

#20
20210285693
2021-09-16

Lubricant management for an HVACR system

#21
20210285447
2021-09-16

Variable capacity screw compressor and method

#22
20210222928
2021-07-22

Chiller system and a method for generating coordination maps for energy efficient chilled water and condenser water temperature resets in chiller plant system

#23
20210222916
2021-07-22

REFRIGERATION CYCLE APPARATUS

#24
20210190071
2021-06-24

Compressor stop valve and associated system

#25
20210122961
2021-04-29

Composition containing refrigerant and application thereof

#26
20210079915
2021-03-18

ELECTRONIC CAPACITY CONTROL VALVE FOR PORTABLE SCREW COMPRESSOR

#27
20210071668
2021-03-11

Variable economizer injection position

#28
20210018235
2021-01-21

System and method for lubricant separation and return control

#29
20210017994
2021-01-21

Scroll compressor with a lubrication arrangement

#30
20200378668
2020-12-03

Lubricant quality management for a compressor

#31
20200378664
2020-12-03

LUBRICANT MANAGEMENT IN AN HVACR SYSTEM

#32
20200378659
2020-12-03

LUBRICANT MANAGEMENT IN AN HVACR SYSTEM

#33
20200370798
2020-11-26

Refrigeration apparatus

#34
20200300244
2020-09-24

Seal assembly for high pressure single screw compressor

#35
20200132074
2020-04-30

Rotary compressors with variable speed and volume control

#36
20200124346
2020-04-23

Method of cooling boil-off gas and apparatus therefor

#37
20200116407
2020-04-16

Method of control for economizer of transport refrigeration units

#38
20200096235
2020-03-26

Screw compressor for HVAC

#39
20200041170
2020-02-06

Two-stage compressor

#40
20200018311
2020-01-16

Scroll compressor and refrigeration cycle apparatus including fixed scroll baseplate injection port

#41
20200003214
2020-01-02

Active clearance management in screw compressor

#42
20190383539
2019-12-19

Lubricant quality management for a compressor

#43
20190271316
2019-09-05

Multi-stage compressor having interstage lubricant injection via an injection rod

#44
20190249666
2019-08-15

Capacity control for chillers having screw compressors

#45
20190203716
2019-07-04

Compressor stop valve and associated system

#46
20190153283
2019-05-23

Heat transfer compositions, methods and systems

#47
20190048873
2019-02-14

Single-stage compressor and energy system using the same

#48
20180356128
2018-12-13

Converting compressor to variable VI compressor

#49
20180320945
2018-11-08

Dual-compressor refrigeration unit

#50
20180274820
2018-09-27

Refrigeration cycle apparatus

#51
20180142689
2018-05-24

Oil separation barrel, screw compressor and air conditioning unit

#52
20180128521
2018-05-10

Cooling system

#53
20180087509
2018-03-29

Active clearance management in screw compressor

#54
20180017059
2018-01-18

Variable economizer injection position

#55
20170356678
2017-12-14

Miniature low-vibration active cooling system with conical rotary compressor

#56
20170356448
2017-12-14

Screw compressor with oil shutoff and method

#57
20170355921
2017-12-14

Compressor for refrigeration and air conditioning, and refrigeration and air conditioning device

#58
20170350398
2017-12-07

Intermediate discharge port for a compressor

#59
20170343261
2017-11-30

Screw compressor drive control

#60
20170284706
2017-10-05

Refrigeration cycle device

#61
20170248347
2017-08-31

Rotary heat exchanger

#62
20170234586
2017-08-17

Oil return management in a HVAC system

#63
20170122318
2017-05-04

Screw rotor with high lobe count

#64
20170059211
2017-03-02

Miniature low-vibration active cooling system with conical rotary compressor

#65
20170045053
2017-02-16

Screw compressor having oil separator and water chilling unit

#66
20170016651
2017-01-19

Energy system

#67
20160305708
2016-10-20

Device and method for cooling and/or low-temperature liquefaction

#68
20160305697
2016-10-20

Refrigerant control system for a flash tank

#69
20160276883
2016-09-22

Permanent magnet motor with axial ventilation holes, refrigeration compressor and air conditioning unit

#70
20160161153
2016-06-09

SCREW COMPRESSOR WITH ECONOMIZER PORT

#71
20160153688
2016-06-02

Oil recovery for refrigeration system

#72
20160069598
2016-03-10

Oil return management in a HVAC system

#73
20150052921
2015-02-26

Screw compressor drive control

#74
20150030489
2015-01-29

Variable capacity screw compressor and method

#75
20140260414
2014-09-18

Variable volume screw compressors using proportional valve control

#76
20130255308
2013-10-03

CHILLER OR HEAT PUMP WITH A FALLING FILM EVAPORATOR AND HORIZONTAL OIL SEPARATOR

#77
20130247603
2013-09-26

Refrigeration system

#78
20130247599
2013-09-26

Electronics cooling using lubricant return for a shell-and-tube evaporator

#79
20130145787
2013-06-13

Screw compressor drive control

#80
20130091892
2013-04-18

Manual Vi adjustment mechanism for screw compressors

#81
20130008194
2013-01-10

HEAT PUMP APPARATUS AND OPERATION METHOD FOR HEAT PUMP APPARATUS

#82
20120247139
2012-10-04

Piston operated bypass valve for a screw compressor

#83
20120103005
2012-05-03

SCREW CHILLER ECONOMIZER SYSTEM

#84
20120090349
2012-04-19

Refrigerator

#85
20120017634
2012-01-26

Variable capacity screw compressor and method

#86
20110174009
2011-07-21

Compressor and refrigerating machine

#87
20110041533
2011-02-24

Screw compressor drive control

#88
20110023515
2011-02-03

Refrigerant control system for a flash tank

#89
20110005251
2011-01-13

Compressor discharge valve providing freeze and charge migration protection

#90
20100218536
2010-09-02

Apparatus and method for pulsation and sound reduction in an economized refrigeration system

#91
20100031695
2010-02-11

Refrigerating device

#92
20090277215
2009-11-12

Two-stage screw compressor and refrigerating device

#93
20080271477
2008-11-06

Compressor System with Controlled Lubricant Reclaim

#94
20070017249
2007-01-25

Refrigeration apparatus

#95
20060285966
2006-12-21

Screw compressor and freezer

#96
20060277941
2006-12-14

Refrigerant system with vapor injection and liquid injection through separate passages

#97
20060218947
2006-10-05

Prevention of compressor unpowered reverse rotation in heat pump units

#98
20050257542
2005-11-24

Compressor lubrication

#99
20050188708
2005-09-01

System and method for variable speed operation of a screw compressor

#100
20050126198
2005-06-16

Refrigeration system with reverse flow defrost