ClassID:

159467

F25B2400/19 - 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 Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started

Recent Application in this class:
#1
20260085864
2026-03-26

REFRIGERANT EVACUATION AND CHARGE ADJUSTMENT MECHANISM

#2
20250216110
2025-07-03

AIR CONDITIONING DEVICE

#3
20250035356
2025-01-30

REFRIGERANT LEAK MITIGATION USING ISOLATION VALVES

#4
20240310099
2024-09-19

Refrigeration Systems with a First Compressor System and a Second Compressor System

#5
20240288212
2024-08-29

REFRIGERATION SYSTEM AND METHOD OF DETERMINING A STATE OF CHARGE OF REFRIGERANT THEREIN

#6
20240102711
2024-03-28

Mode-based control of a refrigeration climate control system

#7
20240053075
2024-02-15

Refrigeration cycle system and refrigerant recovery apparatus

#8
20240011674
2024-01-11

Managing charge allocation and optimizing multi-mode performance of air-source integrated heat pumps

#9
20230349609
2023-11-02

Refrigerator with refrigerant recovery control

#10
20230173885
2023-06-08

VEHICULAR THERMAL MANAGEMENT SYSTEM

#11
20230003423
2023-01-05

Thermal management systems for extended operation

#12
20220412624
2022-12-29

Thermal management systems

#13
20220404105
2022-12-22

Thermal management systems for extended operation

#14
20220404081
2022-12-22

THERMAL MANAGEMENT SYSTEMS

#15
20220381495
2022-12-01

Dynamic liquid receiver and control strategy

#16
20220205696
2022-06-30

Refrigeration systems with a first compressor system and a second compressor system

#17
20220186988
2022-06-16

Refrigeration apparatus

#18
20220186987
2022-06-16

Heat source-side unit and refrigeration apparatus

#19
20220147075
2022-05-12

Pressure fluid handling system

#20
20220146168
2022-05-12

Refrigeration systems with a first compressor system and a second compressor system

#21
20220042700
2022-02-10

Determination device for refrigerant quality

#22
20220003470
2022-01-06

Refrigerant charging method

#23
20220003469
2022-01-06

Refrigerant charging method, heat source unit, and renewed refrigeration cycle apparatus

#24
20210364206
2021-11-25

HEAT PUMP SYSTEM AND AIR CONDITIONER

#25
20210348816
2021-11-11

Refrigerant charging method

#26
20210341192
2021-11-04

HEAT PUMP DEVICE

#27
20210310719
2021-10-07

Method for controlling refrigerator

#28
20210302092
2021-09-30

Method for controlling refrigerator to alternately cool two storage compartments

#29
20210231356
2021-07-29

Cooling system

#30
20210063059
2021-03-04

RECEIVER ASSEMBLY AND HEAT PUMP SYSTEM HAVING THE SAME

#31
20210003331
2021-01-07

Cooling system

#32
20200309434
2020-10-01

Diagnostic mode of operation to detect refrigerant leaks in a refrigeration circuit

#33
20200278140
2020-09-03

Method for refrigerant charge determination in a cooling circuit

#34
20200271364
2020-08-27

Pressure spike prevention in heat pump systems

#35
20200271344
2020-08-27

Air-conditioning apparatus with leak detection control

#36
20200247213
2020-08-06

Method for operating a refrigerant circuit of a cooling system of a vehicle

#37
20200240688
2020-07-30

Heat exchanger with refrigerant storage volume

#38
20200191457
2020-06-18

Cooling system

#39
20200116407
2020-04-16

Method of control for economizer of transport refrigeration units

#40
20200088431
2020-03-19

Air conditioner with refrigerant leakage control

#41
20200064037
2020-02-27

Refrigeration systems with a first compressor system and a second compressor system

#42
20190368782
2019-12-05

Refrigeration cycle apparatus

#43
20190264966
2019-08-29

Methods of control for transport refrigeration units

#44
20190212044
2019-07-11

Air-conditioning apparatus

#45
20190212043
2019-07-11

Refrigeration system and method for automated charging and start-up control

#46
20190178546
2019-06-13

Cooling system with direct expansion and pumped refrigerant economization cooling

#47
20190170415
2019-06-06

Diagnostic mode of operation to detect refrigerant leaks in a refrigeration circuit

#48
20190154322
2019-05-23

Refrigeration cycle apparatus capable of performing refrigerant recovery operation and controlling blower

#49
20180372354
2018-12-27

Method for solving charge imbalance in existing split heat pump

#50
20180340714
2018-11-29

Air conditioner

#51
20180252449
2018-09-06

Refrigeration cycle apparatus

#52
20180231267
2018-08-16

Determination device

#53
20180216856
2018-08-02

Rotary compressor and refrigeration cycle device

#54
20180195782
2018-07-12

Heat exchanger with refrigerant storage volume

#55
20170363342
2017-12-21

Evaporators, methods for defrosting an evaporator, and cooling apparatuses using the evaporator

#56
20170336113
2017-11-23

Refrigeration system and method for automated charging and start-up control

#57
20170219263
2017-08-03

Method and system for estimating loss of refrigerant charge in a refrigerant vapor compression system

#58
20170067676
2017-03-09

Refrigerant charge management in an integrated heat pump

#59
20170010030
2017-01-12

AIR-CONDITIONING APPARATUS

#60
20170003064
2017-01-05

Refrigerator and method for controlling the same

#61
20170003060
2017-01-05

Air-conditioning apparatus

#62
20160363359
2016-12-15

Cooling system with direct expansion and pumped refrigerant economization cooling

#63
20160223234
2016-08-04

Charge control system for trans-critical vapor cycle systems

#64
20150267949
2015-09-24

Combined accumulator and receiver tank

#65
20150266358
2015-09-24

Vehicle air conditioner with a refrigerant circuit

#66
20150059377
2015-03-05

Air conditioning apparatus

#67
20140318165
2014-10-30

Refrigeration apparatus for executing a pump down

#68
20140311172
2014-10-23

Outdoor unit and air-conditioning apparatus

#69
20140157821
2014-06-12

Receiver tank purge in vapor compression cooling system with pumped refrigerant economization

#70
20130205812
2013-08-15

Method of part replacement for refrigeration cycle apparatus and refrigeration cycle apparatus

#71
20130160985
2013-06-27

Refrigerant charge management in a heat pump water heater

#72
20120272674
2012-11-01

Refrigerator and method for controlling the same

#73
20120272673
2012-11-01

Container refrigeration apparatus

#74
20120023975
2012-02-02

REFRIGERATOR AND CONTROL METHOD THEREOF

#75
20110302938
2011-12-15

Control method for refrigerator

#76
20110203299
2011-08-25

HEAT PUMP SYSTEM AND METHOD OF OPERATING

#77
20110146303
2011-06-23

Refrigerator and method of controlling operation thereof

#78
20110056221
2011-03-10

Active stress control during rapid shut down

#79
20110030934
2011-02-10

Integrated Flow Separator and Pump-Down Volume Device for Use in a Heat Exchanger

#80
20110005243
2011-01-13

METHODS AND SYSTEMS FOR UTILIZING A MICRO-CHANNEL HEAT-EXCHANGER DEVICE IN A REFRIGERATION CIRCUIT

#81
20100206002
2010-08-19

Refrigeration circuit

#82
20100152902
2010-06-17

Method for controlling of refrigerator

#83
20100146998
2010-06-17

Refrigeration apparatus

#84
20100131107
2010-05-27

Controlling process for refrigerator

#85
20100107665
2010-05-06

Refrigeration apparatus with a refrigerant collection operation between a plurality of outdoor units

#86
20100094465
2010-04-15

Methods and systems for controlling air conditioning systems having a cooling mode and a free-cooling mode

#87
20100089085
2010-04-15

Heat source unit and refrigeration system

#88
20100064723
2010-03-18

Refrigeration system

#89
20100051229
2010-03-04

Air conditioning system including a bypass pipe

#90
20100005815
2010-01-14

Liquid discharge method and liquid discharger in temperature controller

#91
20100000244
2010-01-07

REFRIGERATION APPARATUS

#92
20090282848
2009-11-19

REFRIGERATION SYSTEM

#93
20090260379
2009-10-22

Refrigerator with reservoir

#94
20090211283
2009-08-27

Heat storage air conditioner

#95
20090173086
2009-07-09

Method for operating a refrigerating device comprising evaporators which are connected in parallel and refrigerating device therefor

#96
20090120110
2009-05-14

Refrigeration System and Method with Controllable Heat Recovery

#97
20090064711
2009-03-12

System and method for using hot gas reheat for humidity control

#98
20090056358
2009-03-05

Air conditioner and heat source unit with other unit start up control

#99
20080302112
2008-12-11

Refrigerant reheat circuit and charge control with target subcooling

#100
20080289349
2008-11-27

Refrigeration system and method using multiple variable capacity devices

#101
20080141688
2008-06-19

Vehicle HVAC system

#102
20080134700
2008-06-12

Refrigeration device and method for detecting refrigerant amount of refrigeration device

#103
20080053120
2008-03-06

Air Conditioner

#104
20070033958
2007-02-15

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

#105
20060288724
2006-12-28

Hybrid heating and cooling system

#106
20060218952
2006-10-05

Refrigerating device and refrigerator

#107
20060179856
2006-08-17

Multi type air-conditioner and control method thereof

#108
20060162353
2006-07-27

Multi-type air conditioner for simultaneous heating and cooling use and method for withdrawing refrigerant therefrom

#109
20060090486
2006-05-04

Multi-type air conditioner

#110
20060064995
2006-03-30

Charge management for 100% heat recovery units

#111
20050252221
2005-11-17

Refrigeration device and method for detecting refrigerant amount of refrigeration device

#112
20050193749
2005-09-08

Control method for multiple heat pump

#113
20050115254
2005-06-02

System and method for using hot gas reheat for humidity control

#114
20050103045
2005-05-19

Air conditioner

#115
20050086954
2005-04-28

Air conditioner having multiple outdoor units, and control method thereof

#116
20050081537
2005-04-21

Apparatus for preventing liquid refrigerant accumulation of air conditioner and method thereof

#117
20050066671
2005-03-31

Temperature control apparatus and method of operating the same

#118
20050061011
2005-03-24

Refrigerating cycle device