ClassID:

159516

F25B2600/0261 - CPC Classification

Classification description:

Control issues; Compressor control by controlling unloaders external to the compressor

Recent Application in this class:
#1
20240393025
2024-11-28

REFRIGERATED DRYER POWER SAVING CONTROLS

#2
20230358445
2023-11-09

Cooling system with a distribution system and a cooling unit

#3
20230235934
2023-07-27

Temperature Regulating Refrigeration Systems for Varying Loads

#4
20230118033
2023-04-20

Cooling system with a distribution system and a cooling unit

#5
20220146172
2022-05-12

HEAT SOURCE UNIT AND REFRIGERATION DEVICE

#6
20220113073
2022-04-14

Temperature regulating refrigeration systems for varying loads

#7
20220010796
2022-01-13

Rotary compressor and refrigeration cycle device

#8
20210270504
2021-09-02

Refrigeration device provided with a secondary by-pass branch and method of use thereof

#9
20210262716
2021-08-26

Refrigerated dryer power saving controls

#10
20210123639
2021-04-29

Oil control system and method for HVAC system

#11
20210080162
2021-03-18

Temperature regulating refrigeration systems for varying loads

#12
20210052106
2021-02-25

ENERGY SAVING SYSTEM FOR PRODUCING COOLED AND HEATED LIQUID

#13
20200408218
2020-12-31

Method and apparatus for pressure equalization in rotary compressors

#14
20200264091
2020-08-20

Air conditioning method and device

#15
20200217570
2020-07-09

Cold generator and refrigerating plant having a cold generator

#16
20200166248
2020-05-28

Refrigeration cycle device

#17
20200158393
2020-05-21

Heat pump temperature control

#18
20200064039
2020-02-27

Refrigeration apparatus

#19
20190285318
2019-09-19

Heat pump system with multiple operating modes

#20
20190111760
2019-04-18

Vehicle and vehicle cooling system

#21
20190101314
2019-04-04

Capacity staging system for multiple compressors

#22
20190078813
2019-03-14

Compressor system having a refrigerated dryer

#23
20190024662
2019-01-24

Compressor and refrigeration system having same

#24
20190017949
2019-01-17

Temperature control system, temperature control device and refrigeration device

#25
20180306473
2018-10-25

Heat pump unit control system with enhanced vapor injection capabilities for upstream and downstream liquid extraction

#26
20180306196
2018-10-25

Method and apparatus for pressure equalization in rotary compressors

#27
20180156510
2018-06-07

System for controlling a refrigeration system with a parallel compressor

#28
20180120002
2018-05-03

Heat exchanger

#29
20180119995
2018-05-03

Air compressor system including a refrigerated dryer and a condensate harvester and water supply

#30
20180106520
2018-04-19

Liquid slugging detection and protection

#31
20180073786
2018-03-15

Air-conditioning apparatus

#32
20170248356
2017-08-31

High pressure compressor and refrigerating machine having a high pressure compressor

#33
20170198720
2017-07-13

Centrifugal compressor with liquid injection

#34
20170198707
2017-07-13

Centrifugal compressor with hot gas injection

#35
20170167761
2017-06-15

Heat pump with an auxiliary heat exchanger for compressor discharge temperature control

#36
20170138662
2017-05-18

Refrigeration device

#37
20170065931
2017-03-09

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

#38
20170059240
2017-03-02

Systems and Methods for Operating a Refrigeration System

#39
20170059220
2017-03-02

Refrigerated dryer power saving controls

#40
20170003679
2017-01-05

Chiller control device, chiller, and chiller diagnostic method

#41
20160272047
2016-09-22

CAPACITY MODULATION OF TRANSPORT REFRIGERATION SYSTEM

#42
20160265545
2016-09-15

Expander-integrated compressor, refrigerator and operating method for refrigerator

#43
20160262419
2016-09-15

Temperature control system and method TDSF plus

#44
20160216024
2016-07-28

Heat source machine and control method therefor

#45
20160123640
2016-05-05

Air conditioner

#46
20150285539
2015-10-08

Heat pump system with multiple operating modes

#47
20150219379
2015-08-06

Transcritical refrigerant vapor compression system high side pressure control

#48
20150159929
2015-06-11

Micro-combined heat and power heat pump defrost procedure

#49
20150159928
2015-06-11

Heat pump with exhaust heat reclaim

#50
20150159927
2015-06-11

Reduced power heat pump starting procedure

#51
20150135751
2015-05-21

Refrigeration cycle apparatus

#52
20150107290
2015-04-23

Air-conditioning apparatus with low outside air temperature mode

#53
20150056059
2015-02-26

Control system

#54
20150052925
2015-02-26

Refrigeration apparatus and refrigeration cycle apparatus

#55
20150033780
2015-02-05

Air-conditioning apparatus with low outside air temperature mode

#56
20150020535
2015-01-22

Air-conditioning apparatus with low outside air temperature mode

#57
20150007604
2015-01-08

Heat exchanger

#58
20140345310
2014-11-27

Refrigeration cycle apparatus

#59
20140150489
2014-06-05

Startup logic for refrigeration system

#60
20140137580
2014-05-22

Method and system for transport container refrigeration control

#61
20130291572
2013-11-07

Device and method for cool drying a gas

#62
20130269380
2013-10-17

Refrigeration cycle device

#63
20130186111
2013-07-25

Air conditioner and starting control method thereof

#64
20130104594
2013-05-02

AIR CONDITIONER

#65
20130104580
2013-05-02

Air conditioner and method of controlling the same

#66
20130036753
2013-02-14

Thermal control system and method

#67
20120318014
2012-12-20

Capacity and pressure control in a transport refrigeration system

#68
20120318008
2012-12-20

Refrigerant distribution apparatus and methods for transport refrigeration system

#69
20120318001
2012-12-20

Refrigeration cycle apparatus and operating method of same

#70
20120227427
2012-09-13

PARAMETER CONTROL IN TRANSPORT REFRIGERATION SYSTEM AND METHODS FOR SAME

#71
20120198868
2012-08-09

Low suction pressure protection for refrigerant vapor compression system

#72
20120192579
2012-08-02

Refrigerant vapor compression system operation

#73
20120014812
2012-01-19

Compressor surge control system and method

#74
20110277498
2011-11-17

METHOD AND APPARATUS FOR CONTROLLING A REGRIGERANT COMPRESSOR, AND USE THEREOF IN A METHOD OF COOLING A HYDROCARBON STREAM

#75
20110197616
2011-08-18

HEAT PUMP APPARATUS

#76
20110174014
2011-07-21

LIQUID VAPOR SEPARATION IN TRANSCRITICAL REFRIGERANT CYCLE

#77
20110138825
2011-06-16

Carbon dioxide refrigerant vapor compression system

#78
20110132026
2011-06-09

Fluid circuit and refrigeration cycle apparatus using the same

#79
20110132006
2011-06-09

Method of controlling inlet pressure of a refrigerant compressor

#80
20110094248
2011-04-28

Refrigerant System and Method of Operating the Same

#81
20110072849
2011-03-31

Combined refrigerant compressor and secondary liquid coolant pump

#82
20110048046
2011-03-03

Compressor control system using a variable geometry diffuser

#83
20110048041
2011-03-03

Pressure relief in high pressure refrigeration system

#84
20110005251
2011-01-13

Compressor discharge valve providing freeze and charge migration protection

#85
20100319372
2010-12-23

Pulse width modulation with reduced suction pressure to improve efficiency

#86
20100282435
2010-11-11

Air-conditioning hot-water supply complex system

#87
20100281894
2010-11-11

CAPACITY MODULATION OF REFRIGERANT VAPOR COMPRESSION SYSTEM

#88
20100154451
2010-06-24

Refrigerating apparatus having an intermediate-pressure refrigerant gas-liquid separator for performing refrigeration cycle

#89
20100101248
2010-04-29

Refrigerant system and control method

#90
20100083678
2010-04-08

Refrigerant system with expander speed control

#91
20100064703
2010-03-18

STANDBY VARIABLE FREQUENCY COMPRESSOR DRIVE

#92
20100043468
2010-02-25

Pulse width modulation with discharge to suction bypass

#93
20100037642
2010-02-18

COMPRESSOR CAPACITY CONTROL OPERATION MECHANISM AND AIR CONDITIONER PROVIDED WITH SAME

#94
20100005820
2010-01-14

Cooling Device for Printing Machines

#95
20100003151
2010-01-07

Refrigerant system with multi-speed scroll compressor and economizer circuit

#96
20090308086
2009-12-17

REFRIGERANT SYSTEM WITH MULTI-SPEED PULSE WIDTH MODULATED COMPRESSOR

#97
20090301113
2009-12-10

Heat Source Apparatus , Heat Source System, And Method Of Controlling Heat Source Apparatus

#98
20090301106
2009-12-10

Beverage dispensing apparatus and method for beverage dispensing

#99
20090293515
2009-12-03

Economized refrigerant vapor compression system for water heating

#100
20090248212
2009-10-01

Thermal control system and method

#101
20090120112
2009-05-14

Air conditioner

#102
20090113900
2009-05-07

METHODS AND APPARATUS FOR OPERATING AIR CONDITIONING SYSTEMS WITH AN ECONOMIZER CYCLE

#103
20090105889
2009-04-23

Thermal control system and method

#104
20090013701
2009-01-15

Refrigerant system with control to address flooded compressor operation

#105
20080319587
2008-12-25

Thermal control system and method

#106
20080314057
2008-12-25

Refrigerant System With Variable Speed Scroll Compressor and Economizer Circuit

#107
20080314055
2008-12-25

Refrigerant system unloading by-pass into evaporator inlet

#108
20080307813
2008-12-18

Variable Capacity Multiple Circuit Air Conditioning System

#109
20080289349
2008-11-27

Refrigeration system and method using multiple variable capacity devices

#110
20080256961
2008-10-23

Economized Refrigerant System with Vapor Injection at Low Pressure

#111
20080253877
2008-10-16

Control system

#112
20080223057
2008-09-18

Refrigerant System with Pulse Width Modulated Components and Variable Speed Compressor

#113
20080209930
2008-09-04

Heat Pump with Pulse Width Modulation Control

#114
20080209922
2008-09-04

Restriction in vapor injection line

#115
20080196445
2008-08-21

Variable speed compressor motor control for low speed operation

#116
20080196432
2008-08-21

Air conditioning apparatus

#117
20080184723
2008-08-07

Multistage compressor

#118
20080120985
2008-05-29

ROTARY COMPRESSOR, CONTROL METHOD THEREOF, AND AIR CONDITIONER USING THE SAME

#119
20080092586
2008-04-24

REFRIGERATING CYCLE DEVICE AND SEALED-TYPE ROTARY COMPRESSOR

#120
20080034772
2008-02-14

METHOD AND SYSTEM FOR AUTOMATIC CAPACITY SELF-MODULATION IN A COMRPESSOR

#121
20080006038
2008-01-10

Beverage dispensing apparatus and method for beverage dispensing

#122
20070271938
2007-11-29

AUTOMATED INLET STEAM SUPPLY VALVE CONTROLS FOR A STEAM TURBINE POWERED CHILLER UNIT

#123
20070240436
2007-10-18

Refrigeration system controller and method

#124
20070169491
2007-07-26

Thermal control system and method

#125
20070130973
2007-06-14

Refrigerant system with multi-speed scroll compressor and economizer circuit

#126
20070089443
2007-04-26

Compressor capacity modulation system and method

#127
20070056310
2007-03-15

Heating and cooling system

#128
20070022771
2007-02-01

Cooling system with variable capacity control

#129
20070022765
2007-02-01

Controlling a voltage-to-frequency ratio for a variable speed drive in refrigerant systems

#130
20070017237
2007-01-25

Air conditioner compressor bypass

#131
20070000264
2007-01-04

Variable evaporator control for a gas dryer

#132
20060288715
2006-12-28

Compressor with capacity control

#133
20060280627
2006-12-14

Control and protection system for a variable capacity compressor

#134
20060254294
2006-11-16

Air conditioner

#135
20060225445
2006-10-12

Refrigerant system with variable speed compressor in tandem compressor application

#136
20060201171
2006-09-14

Dual mode compressor with automatic compression ratio adjustment for adapting to multiple operating conditions

#137
20060201167
2006-09-14

Control system for refrigeration-based compressed-gas dryers

#138
20060147301
2006-07-06

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

#139
20060123840
2006-06-15

Refrigerant system with common economizer and liquid-suction heat exchanger

#140
20060123839
2006-06-15

Air conditioner and method for controlling the same

#141
20060123817
2006-06-15

Air conditioner

#142
20060075767
2006-04-13

Utilization of bypass refrigerant to provide reheat and dehumidification function in refrigerant system

#143
20060065003
2006-03-30

Refrigeration system of air conditioning apparatuses with bypass line between inlet and outlet of compressor

#144
20060059924
2006-03-23

Process for refrigerant charge level detection using a neural net having one output neuron

#145
20060053811
2006-03-16

Multi-temperature cooling system with unloading

#146
20060037336
2006-02-23

Compressor loading control

#147
20060037335
2006-02-23

Method for controlling solenoid valve of air-conditioner

#148
20050252223
2005-11-17

Compressor controlling apparatus and method

#149
20050235689
2005-10-27

Control scheme for multiple operating parameters in economized refrigerant system

#150
20050235688
2005-10-27

Apparatus for converting refrigerant pipe of air conditioner

#151
20050235685
2005-10-27

Pressure equalizer of compressor of air conditioner

#152
20050235684
2005-10-27

Apparatus for converting refrigerant pipe of air conditioner

#153
20050235675
2005-10-27

Heat pump and compressor discharge pressure controlling apparatus for the same

#154
20050229622
2005-10-20

Refrigeration system and method for beverage dispenser

#155
20050183432
2005-08-25

Thermal control system and method

#156
20050166617
2005-08-04

Refrigerant cycle with tandem economized and conventional compressors

#157
20050160761
2005-07-28

Tandem compressors with economized operation

#158
20050126193
2005-06-16

Oil return control in refrigerant system

#159
20050097908
2005-05-12

Compressor with unloader valve between economizer line and evaporator inlet

#160
20050086957
2005-04-28

Refrigerant cycle with operating range extension

#161
20050076656
2005-04-14

System and method for stability control in a centrifugal compressor

#162
20050072173
2005-04-07

Refrigerant cycle apparatus

#163
20050066673
2005-03-31

Pressure equalization system

#164
16423271
2021-10-26

Temperature control system and method TDSF plus

#165
13181753
2016-06-07

Temperature control system and method TDSF plus