ClassID:

159577

F25B2700/197 - CPC Classification

Classification description:

Sensing or detecting of parameters; Sensors therefor; Pressures of the evaporator

Recent Application in this class:
#1
20260139885
2026-05-21

COMPRESSOR CONTROL IN A VAPOR COMPRESSION COOLING CYCLE

#2
20250362070
2025-11-27

SYSTEMS AND METHODS FOR PUMPED REFRIGERANT ECONOMIZATION SUPERHEAT CONTROL

#3
20250271187
2025-08-28

HOT GAS DEFROST USING MEDIUM TEMPERATURE DISCHARGE GAS

#4
20250264255
2025-08-21

HOT GAS DEFROST USING MEDIUM TEMPERATURE DISCHARGE GAS

#5
20250216132
2025-07-03

UNIT COOLER WITH STAGGERED DEFROST ON A PLURALITY OF EVAPORATOR COILS

#6
20250207836
2025-06-26

COMPRESSOR CONTROL IN A VAPOR COMPRESSION COOLING CYCLE

#7
20250198677
2025-06-19

A METHOD FOR CONTROLLING A VAPOUR COMPRESSION SYSTEM AT LOW SUPERHEAT

#8
20250198676
2025-06-19

SYSTEM AND METHOD FOR IDENTIFYING A REFRIGERANT LEAK IN MULTIPLE REFRIGERATION CIRCUITS WITH ONE OR MORE COMPRESSORS

#9
20250093084
2025-03-20

SYSTEMS AND METHODS FOR DETERMINING STARTUP PRESSURE RATIO FOR DYNAMIC COMPRESSORS

#10
20250067487
2025-02-27

System and method for identifying a refrigerant leak in multiple refrigeration circuits with one or more compressors

#11
20250003658
2025-01-02

Methods for Defrosting a Heat Pump and Heat Pumps Comprising a Defrost System

#12
20240426532
2024-12-26

REFRIGERANT SYSTEM AND CONTROLLING METHOD THEREOF

#13
20240365513
2024-10-31

OPTIMIZED AND AUTOMATED DYNAMIC THERMAL REGULATION METHOD AND APPARATUS WITH SELF-TUNING TWO-PHASE COOLING SYSTEM

#14
20240295353
2024-09-05

REFRIGERATION CYCLE APPARATUS, REFIGERANT LEAK DETECTION SYSTEM, AND INFORMATION PROCESSING APPARATUS

#15
20240288212
2024-08-29

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

#16
20240247818
2024-07-25

SYSTEM AND METHODS UTILIZING FLUID COOLERS AND CHILLERS TO PERFORM IN-SERIES HEAT REJECTION AND TRIM COOLING

#17
20240125528
2024-04-18

Unit cooler with staggered defrost on a plurality of evaporator coils

#18
20240102709
2024-03-28

Adjustable cooling system

#19
20230408159
2023-12-21

HOT GAS DEFROST USING MEDIUM TEMPERATURE DISCHARGE GAS

#20
20230384012
2023-11-30

Systems and methods for determining startup pressure ratio for dynamic compressors

#21
20230324093
2023-10-12

EXPANSION VALVE CONTROL SYSTEM

#22
20230314049
2023-10-05

HEAT PUMP CAPABLE OF OPERATING AT SUBZERO AMBIENT TEMPERATURES

#23
20230288108
2023-09-14

Electronic expansion valve and superheat control in an HVAC system

#24
20230204257
2023-06-29

DUAL MASS COOLING PRECISION SYSTEM

#25
20230184474
2023-06-15

METHOD OF VARYING DEFROST TRIGGER FOR HEAT PUMP

#26
20230144991
2023-05-11

Chiller suction flow limiting with input power or motor current control

#27
20230112125
2023-04-13

Pressure regulated semiconductor wafer cooling apparatus and method and a pressure regulating apparatus

#28
20230108538
2023-04-06

System and methods utilizing fluid coolers and chillers to perform in-series heat rejection and trim cooling

#29
20230107572
2023-04-06

Method and device for providing sub-cooling of refrigerants

#30
20230106363
2023-04-06

Systems and methods for implementing ejector refrigeration cycles with cascaded evaporation stages

#31
20230088707
2023-03-23

Regulation method and refrigeration plant and respective refrigeration plant including such apparatus

#32
20220412625
2022-12-29

Refrigerant leak detection system and method

#33
20220357078
2022-11-10

Systems and methods for implementing ejector refrigeration cycles with cascaded evaporation stages

#34
20220235979
2022-07-28

REFRIGERATION SYSTEM WITH SEPARATE FEEDSTREAMS TO MULTIPLE EVAPORATOR ZONES

#35
20220221207
2022-07-14

Method for controlling suction pressure of a vapour compression system

#36
20220136749
2022-05-05

Unit cooler with staggered defrost on a plurality of evaporator coils

#37
20220099362
2022-03-31

Apparatus for calculating temperature setting, system for low temperature treatment, method of calculating temperature setting, and program for calculating temperature setting

#38
20210372678
2021-12-02

COOLING SYSTEM

#39
20210325103
2021-10-21

REFRIGERATOR

#40
20210310707
2021-10-07

Expansion valve with selectable operation modes

#41
20210285708
2021-09-16

Climate control unit for controlling air temperature and humidity and system comprising the same

#42
20210283976
2021-09-16

Accumulator pressure drop regulation system for a heat pump

#43
20210268868
2021-09-02

Method for operating a vehicular refrigeration system having a refrigeration circuit with a heat pump function

#44
20210207861
2021-07-08

Chiller suction flow limiting with input power or motor current control

#45
20210199362
2021-07-01

Precooler-based transcritical COheat pump system and control method of waterway two-way valve thereof

#46
20210199359
2021-07-01

Refrigerant leak detection system and method

#47
20210172664
2021-06-10

Adjustable cooling system

#48
20210148615
2021-05-20

MULTI-SPLIT AIR CONDITIONING SYSTEM AND METHOD AND DEVICE FOR CONTROLLING OIL RETURN OF THE MULTI-SPLIT AIR CONDITIONING SYSTEM

#49
20210033320
2021-02-04

Heat exchanger and method for controlling or regulating the heat exchanger

#50
20200408449
2020-12-31

Air conditioner control method including determination of a chiller target load

#51
20200309434
2020-10-01

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

#52
20200248939
2020-08-06

Low charge packaged refrigeration systems

#53
20200236821
2020-07-23

Dual mass cooling precision system

#54
20200236820
2020-07-23

Dual mass cooling precision system

#55
20200232693
2020-07-23

Air-conditioning apparatus having heating-defrosting operation mode

#56
20200200409
2020-06-25

System and methods utilizing fluid coolers and chillers to perform in-sertes heat rejection and trim cooling

#57
20200158391
2020-05-21

Expansion valve with selectable operation modes

#58
20200110000
2020-04-09

Leak detection in a fluid compression system

#59
20200041172
2020-02-06

APPARATUS FOR AIR-CONDITIONING OF ENVIRONMENTS IN THE MARINE FIELD

#60
20200041171
2020-02-06

Method for air-conditioning of environments in the marine field

#61
20190383536
2019-12-19

Adjustable duct for HVAC system

#62
20190226705
2019-07-25

Refrigeration system with utilization unit leak detection

#63
20190219316
2019-07-18

Scroll unloading detection system

#64
20190212041
2019-07-11

System design for noise reduction of solenoid valve

#65
20190212038
2019-07-11

Method of managing compressor start for transport refrigeration system

#66
20190186800
2019-06-20

Heating, ventilating, air conditioning, and refrigeration system with simultaneous sub-cooling and superheat control

#67
20190178932
2019-06-13

Refrigeration system, failure diagnostic system thereof, failure diagnostic method, controller and storage medium

#68
20190170415
2019-06-06

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

#69
20190154308
2019-05-23

Evaporator liquid preheater for reducing refrigerant charge

#70
20190128590
2019-05-02

Cooling device

#71
20190101313
2019-04-04

VEHICULAR AIR CONDITIONING SYSTEMS

#72
20190072310
2019-03-07

Refrigerator

#73
20190041110
2019-02-07

Purging device, chiller equipped with same, and method for controlling purging device

#74
20180372379
2018-12-27

Air conditioner

#75
20180283754
2018-10-04

Method for controlling a vapour compression system in ejector mode for a prolonged time

#76
20180259233
2018-09-13

System design for noise reduction of solenoid valve

#77
20180245822
2018-08-30

Multi-zone transport refrigeration system with an ejector system

#78
20180238598
2018-08-23

Reverse defrost system and methods

#79
20180195781
2018-07-12

Oil management for micro booster supermarket refrigeration system

#80
20180195773
2018-07-12

Micro booster supermarket refrigeration architecture

#81
20180180339
2018-06-28

Scroll unloading detection system

#82
20180142927
2018-05-24

Ejector refrigeration circuit

#83
20180139870
2018-05-17

Dual mass cooling precision system

#84
20180128529
2018-05-10

System and method for charging a refrigeration system

#85
20180128528
2018-05-10

System and method for charging a refrigeration system

#86
20180120194
2018-05-03

Leak detection in a fluid compression system

#87
20180094841
2018-04-05

Parallel capillary expansion tube systems and methods

#88
20180094840
2018-04-05

Parallel capillary expansion tube systems and methods

#89
20180080695
2018-03-22

Optimizing energy efficiency ratio feedback control for direct expansion air-conditioners and heat pumps

#90
20180066872
2018-03-08

Ejector refrigeration circuit

#91
20180045444
2018-02-15

Low charge packaged refrigeration systems

#92
20180045441
2018-02-15

LNG gasification systems and methods

#93
20180031288
2018-02-01

Electronic expansion valve (EEV) control system and method

#94
20180010830
2018-01-11

Refrigeration system with separate feedstreams to multiple evaporator zones

#95
20170356684
2017-12-14

Methods and systems for controlling a chiller system having a centrifugal compressor with a variable speed drive

#96
20170321941
2017-11-09

Method for controlling a vapour compression system with an ejector

#97
20170282689
2017-10-05

Air-conditioning apparatus for vehicle

#98
20170276417
2017-09-28

System and method to maintain evaporator superheat during pumped refrigerant economizer operation

#99
20170268792
2017-09-21

System and methods utilizing fluid coolers and chillers to perform in-series heat rejection and trim cooling

#100
20170241442
2017-08-24

Compressor having sound control system

#101
20170211850
2017-07-27

Ejector and ejector refrigeration cycle

#102
20170176053
2017-06-22

Hot gas bypass for two-stage compressor

#103
20170159984
2017-06-08

Method for operating a refrigeration unit

#104
20170159982
2017-06-08

Optimizing energy efficiency ratio feedback control for direct expansion air-conditioners and heat pumps

#105
20170150695
2017-06-01

System for storing and cooling milk, milking system, and method for cooling milk

#106
20170131005
2017-05-11

Heat pump heating-cooling system using hybrid heat source and control method thereof

#107
20170115037
2017-04-27

Apparatus for air-conditioning of environments in the marine field

#108
20170102169
2017-04-13

Air conditioning and refrigeration system

#109
20170097178
2017-04-06

LNG GASIFICATION SYSTEMS AND METHODS

#110
20170080777
2017-03-23

Vehicle air conditioning apparatus

#111
20170065931
2017-03-09

Method and device for cool-drying a gas with circulating cooling liquid with bypass line

#112
20170059240
2017-03-02

Systems and Methods for Operating a Refrigeration System

#113
20170030594
2017-02-02

Fluid heating and/or cooling system and related methods

#114
20170028817
2017-02-02

Vehicle air conditioning apparatus

#115
20170028816
2017-02-02

Vehicle air conditioning apparatus

#116
20170028815
2017-02-02

Vehicle air conditioning apparatus

#117
20170003679
2017-01-05

Chiller control device, chiller, and chiller diagnostic method

#118
20160375743
2016-12-29

Vehicle air conditioning apparatus

#119
20160313037
2016-10-27

Motor operated valve apparatus and motor operated valve controller

#120
20160282020
2016-09-29

Portable self-refrigerating autonomous system

#121
20160265820
2016-09-15

Compressor having lubricant management system for bearing life

#122
20160216024
2016-07-28

Heat source machine and control method therefor

#123
20160187036
2016-06-30

Heat recovery apparatus

#124
20160178257
2016-06-23

Low charge packaged refrigeration system

#125
20160178243
2016-06-23

Evaporator liquid preheater for reducing refrigerant charge

#126
20160146520
2016-05-26

HVAC systems, devices, and methods with improved regulation of refrigerant flow

#127
20160131405
2016-05-12

Head pressure control

#128
20160082810
2016-03-24

Vehicle air conditioner

#129
20150362240
2015-12-17

Methods and systems for controlling a chiller system having a centrifugal compressor with a variable speed drive

#130
20150362237
2015-12-17

Methods and systems for detecting and recovering from control instability caused by impeller stall

#131
20150323234
2015-11-12

Control arrangement for controlling superheat

#132
20150316302
2015-11-05

Refrigeration apparatus and method

#133
20150275908
2015-10-01

Centrifugal compressor inlet guide vane control

#134
20150267954
2015-09-24

Air conditioner and method for controlling an air conditioner

#135
20150260441
2015-09-17

Chiller capacity control apparatuses, methods, and systems

#136
20150224849
2015-08-13

Refrigeration cycle device

#137
20150204595
2015-07-23

Secondary fluid valve and system

#138
20150183294
2015-07-02

Air conditioning device for vehicle

#139
20150135747
2015-05-21

System and method for dynamic control of an evaporator

#140
20150056059
2015-02-26

Control system

#141
20150039134
2015-02-05

Heat source system and method for controlling number of machines to be started at time of power recovery in heat source system

#142
20140373562
2014-12-25

Vehicle air conditioning apparatus

#143
20140358253
2014-12-04

Number-of-machines control device for heat source system, method therefor, and heat source system

#144
20140260388
2014-09-18

Refrigerating apparatus and control device for refrigerating machine

#145
20140260385
2014-09-18

Refrigerating apparatus and corresponding control device

#146
20130247603
2013-09-26

Refrigeration system

#147
20130213067
2013-08-22

Heat source device

#148
20130166079
2013-06-27

MOBILE, PERSONAL, OPEN-LOOP COOLING SYSTEMS AND METHODS

#149
20130111930
2013-05-09

Refrigeration ejector cycle having control for supercritical to subcritical transition prior to the ejector

#150
20130031920
2013-02-07

Apparatus and method for evaluating performance of centrifugal chiller

#151
20120318014
2012-12-20

Capacity and pressure control in a transport refrigeration system

#152
20120318006
2012-12-20

Defrost operations and apparatus for a transport refrigeration system

#153
20120279244
2012-11-08

TABLE TOP REFRIGERATED BEVERAGE DISPENSER

#154
20120266623
2012-10-25

Control algorithm for electronic expansion valve modulation

#155
20120266615
2012-10-25

Adaptable evaporator defrost logic for an aircraft

#156
20120198868
2012-08-09

Low suction pressure protection for refrigerant vapor compression system

#157
20120073316
2012-03-29

CONTROL OF A TRANSCRITICAL VAPOR COMPRESSION SYSTEM

#158
20120067077
2012-03-22

Torque estimating device for compressor

#159
20120050050
2012-03-01

ALARM SYSTEM FOR AN AIR CONDITIONER ASSEMBLY

#160
20110271690
2011-11-10

Machine for producing and dispensing liquid or semiliquid foodstuffs

#161
20110239668
2011-10-06

High-side pressure control for transcritical refrigeration system

#162
20110167846
2011-07-14

METHOD AND SYSTEM FOR DEHUMIDIFICATION AND REFRIGERANT PRESSURE CONTROL

#163
20110120162
2011-05-26

Performance evaluation device for variable-speed centrifugal chiller

#164
20110035062
2011-02-10

Refrigeration apparatus and method for controlling the same

#165
20100191381
2010-07-29

Air-Conditioning System, In Particular For A Motor Vehicle

#166
20100131115
2010-05-27

CONTROLLING METHOD OF AIR CONDITIONER

#167
20100095693
2010-04-22

Suction modulation valve for refrigerant system with adjustable opening for pulse width modulation control

#168
20100089083
2010-04-15

Refrigerated transport system

#169
20100058799
2010-03-11

Suction valve pulse width modulation control based on evaporator or condenser pressure

#170
20100031681
2010-02-11

Electronic block valve

#171
20100017038
2010-01-21

Device for controlling a fixed-capacity compressor

#172
20100011787
2010-01-21

PREVENTION OF REFRIGERANT SOLIDIFICATION

#173
20100010681
2010-01-14

Method and apparatus for optimizing refrigeration systems

#174
20090260375
2009-10-22

Refrigeration cycle apparatus

#175
20090241566
2009-10-01

System and method for controlled expansion valve adjustment

#176
20090094998
2009-04-16

System and method for evaluating parameters for a refrigeration system with a variable speed compressor

#177
20090084119
2009-04-02

Sytem and method for detecting transducer failure in refrigerant systems

#178
20090007575
2009-01-08

Cooling apparatus having a variable speed compressor with speed limited on the basis of a sensed performance parameter

#179
20080314998
2008-12-25

Temperature control in variable-capacity HVAC system

#180
20080307810
2008-12-18

Operational limit to avoid liquid refrigerant carryover

#181
20080223056
2008-09-18

Control of a refrigeration circuit with an internal heat exchanger

#182
20080168781
2008-07-17

Refrigerating machine

#183
20070277543
2007-12-06

Control device for refrigeration or air conditioning systems

#184
20070256432
2007-11-08

Method and apparatus for optimizing refrigeration systems

#185
20070084237
2007-04-19

A heat exchanger device

#186
20070017240
2007-01-25

Refrigeration system with mechanical subcooling

#187
20060288713
2006-12-28

Method and system for dehumidification and refrigerant pressure control

#188
20060266072
2006-11-30

Ejector and ejector cycle device

#189
20060242982
2006-11-02

Defrost system for a refrigeration device

#190
20060242974
2006-11-02

Evaporation process control used in refrigeration

#191
20060236708
2006-10-26

Refrigeration cycle device for vehicle

#192
20060201167
2006-09-14

Control system for refrigeration-based compressed-gas dryers

#193
20060174639
2006-08-10

Flash tank of two-stage compression heat pump system for heating and cooling

#194
20060162355
2006-07-27

Refrigeration apparatus and method for controlling the same

#195
20060147301
2006-07-06

Centrifugal compressor for turbo chiller, turbo chiller, and control method therefor

#196
20060124065
2006-06-15

Cooling milk in an automatic milking system

#197
20060096308
2006-05-11

Vapor compression system with defrost system

#198
20050172647
2005-08-11

Method for detecting changes in a first media flow of a heat or cooling medium in a refrigeration system

#199
20050166608
2005-08-04

Method for evaluating a non-measured operating variable in a refrigeration plant

#200
20050160750
2005-07-28

Automatic start/stop sequencing controls for a steam turbine powered chiller unit

#201
20050160749
2005-07-28

Enhanced manual start/stop sequencing controls for a stream turbine powered chiller unit

#202
20050160748
2005-07-28

Integrated adaptive capacity control for a steam turbine powered chiller unit

#203
20050150240
2005-07-14

Supercritical refrigerant cycle system

#204
20050144965
2005-07-07

Turbo chiller, compressor therefor, and control method therefor

#205
20050126190
2005-06-16

Loss of refrigerant charge and expansion valve malfunction detection

#206
20050097909
2005-05-12

Table top refrigerated beverage dispenser

#207
20050097907
2005-05-12

Table top refrigerated beverage dispenser

#208
17021804
2023-07-04

Electronic expansion valve and superheat control in an HVAC system

#209
16448271
2023-12-05

Thermal management systems