ClassID:

159450

F25B2400/0751 - CPC Classification

Classification description:

General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of; Details of compressors or related parts with parallel compressors the compressors having different capacities

Recent Application in this class:
#1
20230194135
2023-06-22

OIL MANAGEMENT FOR DUAL COMPRESSOR MODULATION

#2
20230007826
2023-01-12

REFRIGERANT COMPRESSOR GROUP

#3
20220026122
2022-01-27

System and method for OCR control in paralleled compressors

#4
20200072521
2020-03-05

Method and apparatus for balanced fluid distribution in tandem-compressor systems

#5
20200025409
2020-01-23

Hybrid tandem compressor system and method of use

#6
20190242606
2019-08-08

Air conditioning system and method of operating the same

#7
20190145681
2019-05-16

Compressor unit, refrigeration circuit comprising the same and method of operating a compressor unit

#8
20190101314
2019-04-04

Capacity staging system for multiple compressors

#9
20190063805
2019-02-28

Control system for multiple compressors

#10
20190049130
2019-02-14

Hybrid tandem compressor system and method of use

#11
20190017732
2019-01-17

Mixed model compressor

#12
20180274830
2018-09-27

Method and apparatus for common pressure and oil equalization in multi-compressor systems

#13
20180252442
2018-09-06

Cooling system with parallel compression

#14
20180231284
2018-08-16

Vapour compression system with at least two evaporator groups

#15
20180156513
2018-06-07

Refrigeration system

#16
20180149397
2018-05-31

Method and system for improving refrigeration system efficiency

#17
20180087813
2018-03-29

Transportation refrigeration unit with multiple compressors

#18
20180003423
2018-01-04

Scroll compressors with different volume indexes and systems and methods for same

#19
20170336106
2017-11-23

Turbo economizer used in chiller system

#20
20170284706
2017-10-05

Refrigeration cycle device

#21
20170227266
2017-08-10

Multi-coil microchannel evaporator

#22
20170211855
2017-07-27

Oil distribution in multiple-compressor systems utilizing variable speed

#23
20170191475
2017-07-06

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

#24
20170089637
2017-03-30

Parallel compression in LNG plants using a positive displacement compressor

#25
20170030623
2017-02-02

Multi-stage control for electromechanical heating, ventilation, and air conditioning (HVAC) unit

#26
20170016438
2017-01-19

Compressor system including a plurality of compressors

#27
20160265545
2016-09-15

Expander-integrated compressor, refrigerator and operating method for refrigerator

#28
20160010885
2016-01-14

System for managing lubricant levels in tandem compressor assemblies of an HVAC system

#29
20150230367
2015-08-13

High efficiency cooling system

#30
20150219372
2015-08-06

Heat-pump system

#31
20140345308
2014-11-27

Tandem compressor refrigeration system and a method of using the same

#32
20140303805
2014-10-09

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

#33
20140090413
2014-04-03

Refrigeration cycle device capable of efficiently varying capacity providing a first and a second compressing mechanism disposed in a hermetic container

#34
20130298593
2013-11-14

COrefrigeration system with integrated air conditioning module

#35
20130186111
2013-07-25

Air conditioner and starting control method thereof

#36
20130104580
2013-05-02

Air conditioner and method of controlling the same

#37
20130091877
2013-04-18

Air conditioner and method of operating an air conditioner

#38
20120111050
2012-05-10

AIR CONDITIONER

#39
20120055184
2012-03-08

CENTRIFUGAL-CHILLER AND METHOD FOR CONTROLLING THE SAME

#40
20110214439
2011-09-08

TANDEM COMPRESSOR OF DIFFERENT TYPES

#41
20110174005
2011-07-21

REFRIGERATING APPARATUS

#42
20110132026
2011-06-09

Fluid circuit and refrigeration cycle apparatus using the same

#43
20110094251
2011-04-28

DUAL TURBO CENTRIFUGAL CHILLER

#44
20110008181
2011-01-13

Fixed and variable compressor system capacity control

#45
20100186433
2010-07-29

Scroll Compressors with Different Volume Indexes and Systems and Methods for Same

#46
20100180614
2010-07-22

Cold Plate Refrigeration System Optimized For Energy Efficiency

#47
20100147018
2010-06-17

Refrigeration apparatus

#48
20100071391
2010-03-25

CO2 REFRIGERANT SYSTEM WITH TANDEM COMPRESSORS, EXPANDER AND ECONOMIZER

#49
20100051126
2010-03-04

Tandem compressors with common intermediate port

#50
20100017037
2010-01-21

Capacity modulation compressor and air conditioning system having the same

#51
20090282848
2009-11-19

REFRIGERATION SYSTEM

#52
20090218077
2009-09-03

Air-conditioner with multi-stage compressor and phase separator

#53
20090216377
2009-08-27

Air conditioner and method of controlling the same

#54
20090126399
2009-05-21

Refigeration system

#55
20090077985
2009-03-26

Refrigerating Apparatus

#56
20090019868
2009-01-22

AIR CONDITIONER

#57
20080289349
2008-11-27

Refrigeration system and method using multiple variable capacity devices

#58
20080245097
2008-10-09

Two stage reciprocating compressor and refrigerator having the same

#59
20080229782
2008-09-25

Refrigerating Apparatus

#60
20080223058
2008-09-18

Air Conditioner

#61
20080223053
2008-09-18

Air conditioner

#62
20080168784
2008-07-17

Air conditioning system and method of controlling the same

#63
20080163642
2008-07-10

Refrigeration apparatus

#64
20080098754
2008-05-01

Economized refrigeration system

#65
20080087030
2008-04-17

Water-cooled air conditioner

#66
20080087028
2008-04-17

Air conditioner

#67
20080087027
2008-04-17

Water-cooled air conditioner

#68
20080034765
2008-02-14

Refrigeration system

#69
20080022710
2008-01-31

Simultaneous heating/cooling multi air conditioner

#70
20080011007
2008-01-17

COLD PLATE REFRIGERATION SYSTEM OPTIMIZED FOR ENERGY EFFICIENCY

#71
20070295025
2007-12-27

Engine Heat Pump

#72
20070245768
2007-10-25

Refrigeration System

#73
20070245753
2007-10-25

Refrigeration system capacity controller and method

#74
20070240440
2007-10-18

Methods and apparatus for linearized temperature control of commercial refrigeration systems

#75
20070240436
2007-10-18

Refrigeration system controller and method

#76
20070227167
2007-10-04

Control method for variable capacity compressors

#77
20070193301
2007-08-23

Expendable turbine driven compression cycle cooling system

#78
20070137232
2007-06-21

Air conditioner

#79
20070130975
2007-06-14

Air conditioning system for vehicles

#80
20070113568
2007-05-24

APPARATUS AND METHOD FOR CONTROLLING REFRIGERANT DISTRIBUTION IN MULTI-TYPE AIR CONDITIONER

#81
20070095084
2007-05-03

APPARATUS AND METHOD FOR CONTROLLING MULTI-TYPE AIR CONDITIONER

#82
20070095083
2007-05-03

METHOD AND APPARATUS FOR REMOVING PARTIAL OVERLOAD IN AN AIR CONDITIONER

#83
20070044490
2007-03-01

Method for selectively operating compressors of dual type unitary air conditioner

#84
20070044489
2007-03-01

Method for controlling amount of refrigerant of dual type unitary air conditioner

#85
20070033958
2007-02-15

DRIVING CONTROLLING APPARATUS FOR AIR CONDITIONER HAVING PLURAL COMPRESSORS AND METHOD THEREOF

#86
20070033954
2007-02-15

DRIVING CONTROLLING APPARATUS FOR AIR CONDITIONER HAVING PLURAL COMPRESSORS AND METHOD THEREOF

#87
20060207273
2006-09-21

Method of controlling over-load cooling operation of air conditioner

#88
20060123835
2006-06-15

Refrigeration apparatus

#89
20060117770
2006-06-08

Multi-air condition system and method for controlling the same

#90
20060112705
2006-06-01

Apparatus for controlling the capacity of an air conditioner and control method using the same

#91
20060059931
2006-03-23

Binary control compressor system

#92
20060037333
2006-02-23

Air-conditioner and operation control method thereof

#93
20060037332
2006-02-23

Air-conditioner and method for controlling driving thereof

#94
20060032253
2006-02-16

Driving control method for central air conditioner

#95
20060032252
2006-02-16

Operation control method for unitary air conditioner

#96
20050257560
2005-11-24

Multi-stage operation type air conditioner

#97
20050257538
2005-11-24

Apparatus and method for controlling air-conditioner

#98
20050252223
2005-11-17

Compressor controlling apparatus and method

#99
20050244277
2005-11-03

Fixed and variable compressor system capacity control

#100
20050235680
2005-10-27

Unitary air conditioning system

#101
20050150246
2005-07-14

Refrigerating equipment

#102
20050115271
2005-06-02

Refrigerating apparatus

#103
20050092004
2005-05-05

Method for controlling operation of air conditioner

#104
20050092003
2005-05-05

Method for controlling air conditioner having multi-compressor

#105
20050091998
2005-05-05

Method for controlling operation of air-conditioner

#106
20050091997
2005-05-05

Method for controlling air conditioner having multi-compressor

#107
20050086960
2005-04-28

Refrigerating machine