ClassID:

159514

F25B2600/0253 - page 2 - CPC Classification

Classification description:

Control issues; Compressor control by controlling speed with variable speed

Recent Application in this class:
#301
20180094840
2018-04-05

Parallel capillary expansion tube systems and methods

#302
20180087816
2018-03-29

High outdoor ambient and high suction pressure oil pump out mitigation for air conditioners

#303
20180058740
2018-03-01

Refrigeration cycle apparatus

#304
20180051923
2018-02-22

Controlling air conditioner modes

#305
20180051921
2018-02-22

ADAPTIVELY CONTROLLED DEFROST CYCLE TIME FOR AN AIRCRAFT VAPOR CYCLE REFRIGERATION SYSTEM

#306
20180045447
2018-02-15

System for calibration of a compressor unit in a heating, ventilation, and air conditioning system

#307
20180038620
2018-02-08

Chiller apparatus for plasma treatment device

#308
20180031291
2018-02-01

VFD CONTROL FOR MULTIPLE CIRCUIT REFRIGERATION SYSTEM

#309
20180023868
2018-01-25

Refrigeration cycle apparatus with oil separator switching valve

#310
20180017060
2018-01-18

Variable volume ratio compressor

#311
20180010835
2018-01-11

Vector drive for vapor compression systems

#312
20180010834
2018-01-11

Control device for refrigeration cycle apparatus, and control method for refrigeration cycle apparatus, and refrigeration cycle apparatus

#313
20170370626
2017-12-28

Air conditioning apparatus

#314
20170363332
2017-12-21

AIR-CONDITIONING APPARATUS

#315
20170356668
2017-12-14

Method and system for optimizing a speed of at least one of a variable speed compressor and a variable speed circulation fan to improve latent capacity

#316
20170343261
2017-11-30

Screw compressor drive control

#317
20170336119
2017-11-23

On board chiller capacity calculation

#318
20170336115
2017-11-23

Air-conditioning apparatus

#319
20170336085
2017-11-23

Regenerative air conditioner

#320
20170328621
2017-11-16

AIR-CONDITIONING SYSTEM

#321
20170328604
2017-11-16

Method for operating a vapour compression system with a receiver

#322
20170321941
2017-11-09

Method for controlling a vapour compression system with an ejector

#323
20170321939
2017-11-09

Air conditioner with defrost control

#324
20170314821
2017-11-02

Refrigeration system having a variable speed compressor

#325
20170314820
2017-11-02

Packaged HVAC unit with secondary system capability

#326
20170299243
2017-10-19

System for calibration of a compressor unit in a heating, ventilation, and air conditioning system

#327
20170284706
2017-10-05

Refrigeration cycle device

#328
20170268812
2017-09-21

System and method of controlling a variable-capacity compressor and a variable speed fan using a two-stage thermostat

#329
20170248352
2017-08-31

Chiller compressor oil conditioning

#330
20170241442
2017-08-24

Compressor having sound control system

#331
20170234564
2017-08-17

Method and apparatus for re-heat dehumidification utilizing a variable speed compressor system

#332
20170227299
2017-08-10

Plural heat pump and thermal storage system for facilitating power shaping services on the electrical power grid at consumer premises

#333
20170227273
2017-08-10

Controls and operation of variable frequency drives

#334
20170227272
2017-08-10

AIR CONDITIONER AND METHOD OF CONTROLLING THE SAME

#335
20170227263
2017-08-10

Systems and methods for controlling a refrigeration system

#336
20170227246
2017-08-10

Method of and system for minimization of condenser-fan cycling for low ambient temperature

#337
20170219255
2017-08-03

Multi-Split HVAC System

#338
20170211855
2017-07-27

Oil distribution in multiple-compressor systems utilizing variable speed

#339
20170211850
2017-07-27

Ejector and ejector refrigeration cycle

#340
20170205128
2017-07-20

Outdoor unit and refrigeration cycle apparatus

#341
20170198965
2017-07-13

On-line energy consumption optimization adaptive to environmental condition

#342
20170197492
2017-07-13

Vehicular air conditioning device

#343
20170194852
2017-07-06

System for harmonic content correction in power electric circuit, system for electric engine control, and cooling compressor

#344
20170191714
2017-07-06

Vapor compression system

#345
20170191713
2017-07-06

Vapor compression system

#346
20170191678
2017-07-06

Environment control system and devices

#347
20170191475
2017-07-06

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

#348
20170184332
2017-06-29

System for calibration of a compressor unit in a heating, ventilation, and air conditioning system

#349
20170176076
2017-06-22

System and method for dynamically determining refrigerant film thickness and dynamically controlling refrigerant film thickness at rolling-element bearing of an oil free chiller

#350
20170167768
2017-06-15

System for cooling and methods for cooling and for controlling a cooling system

#351
20170159666
2017-06-08

Method for pressure and temperature control of a fluid in a series of cryogenic compressors

#352
20170152855
2017-06-01

Method for controlling the speed of cryogenic compressors arranged in series for cooling cryogenic helium

#353
20170152850
2017-06-01

Compressor and method for controlling the same

#354
20170151859
2017-06-01

Device and method for controlling operation of transport refrigeration unit

#355
20170150695
2017-06-01

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

#356
20170131006
2017-05-11

Refrigerant cooling for variable speed drive

#357
20170115037
2017-04-27

Apparatus for air-conditioning of environments in the marine field

#358
20170102160
2017-04-13

System and method of operating a variable speed HVAC system

#359
20170097183
2017-04-06

System and method of operating a variable speed compressor with a two-stage controller

#360
20170051959
2017-02-23

Air-conditioning apparatus and air-conditioning system that selects control based on sensible or latent heat cooling capability

#361
20170045279
2017-02-16

Air conditioning system with indoor and ventilation circuits

#362
20170038110
2017-02-09

Method for operating a chiller

#363
20170016661
2017-01-19

System and method for controlling vapor compression systems

#364
20170010029
2017-01-12

Multi Purpose Multistage Evaporative Cold Water and Cold Air Generating and Supply System

#365
20170009775
2017-01-12

Capacity control system and method for multi-stage centrifugal compressor

#366
20170003060
2017-01-05

Air-conditioning apparatus

#367
20160380575
2016-12-29

Motor drive control device, compressor, air-sending device, and air-conditioning apparatus

#368
20160363361
2016-12-15

Simple inverter-control-type refrigerator, inverter control unit for refrigerator, and inverter compressor using same

#369
20160334152
2016-11-17

Refrigerator and control method thereof

#370
20160326942
2016-11-10

Systems and methods for controlling a variable speed water pump

#371
20160299029
2016-10-13

System for calibration of a compressor unit in a heating, ventilation, and air conditioning system

#372
20160298627
2016-10-13

Compressor temperature control systems and methods

#373
20160282032
2016-09-29

Multiple evaporator control using PWM valve/compressor

#374
20160282026
2016-09-29

AIR CONDITIONER AMD METHOD OF CONTROLLING AN AIR CONDITIONER

#375
20160273822
2016-09-22

SINGLE CIRCUIT REFRIGERATION APPLIANCE

#376
20160273817
2016-09-22

Air conditioning apparatus

#377
20160258661
2016-09-08

Air conditioner having defrosting operation

#378
20160236538
2016-08-18

Vehicular air conditioner

#379
20160216011
2016-07-28

Heat pump hot-water supply device and method for controlling a heat pump hot-water supply device

#380
20160209097
2016-07-21

Refrigeration system with brushless DC motor compressor drive

#381
20160209087
2016-07-21

Multi Purpose Multistage Evaporative Cold Water and Cold Air Generating and Supply System

#382
20160201960
2016-07-14

VEHICLE AIR CONDITIONER

#383
20160201959
2016-07-14

Vehicle air conditioner

#384
20160178261
2016-06-23

Air conditioner

#385
20160161165
2016-06-09

Air-conditioning system using control of number of compressors based on predetermined frequency ranges

#386
20160161163
2016-06-09

Variable refrigerant flow system operation in low ambient conditions

#387
20160146522
2016-05-26

Methods and systems for operating HVAC systems in low load conditions

#388
20160131405
2016-05-12

Head pressure control

#389
20160123635
2016-05-05

Oil return method for multi-split air conditioning in heating

#390
20160091236
2016-03-31

Air conditioning system with vapor injection compressor

#391
20160061504
2016-03-03

Variable speed compressor control with sound-controlled defrost mode

#392
20160018147
2016-01-21

System and method for controlling a variable-capacity compressor

#393
20160010885
2016-01-14

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

#394
20160003518
2016-01-07

Cooling system with increased efficiency

#395
20150377536
2015-12-31

Controls and operation of variable frequency drives

#396
20150362200
2015-12-17

Air-conditioning system

#397
20150354589
2015-12-10

Centrifugal compressor with extended operating range

#398
20150338134
2015-11-26

Heat pump device for vehicle

#399
20150330659
2015-11-19

HVAC electrical system power supply packaging system

#400
20150321298
2015-11-12

Heat pumps with unequal cooling and heating capacities for climates where demand for cooling and heating are unequal, and method of adapting and distributing such heat pumps

#401
20150316297
2015-11-05

Method for matching refrigeration load to compressor capacity

#402
20150316075
2015-11-05

Ejector

#403
20150300723
2015-10-22

Air-conditioning apparatus

#404
20150300684
2015-10-22

Sound level control in an HVAC system

#405
20150298525
2015-10-22

Vehicle air conditioner

#406
20150292777
2015-10-15

Air conditioning unit having dynamic target condensing and evaporating values based on load requirements

#407
20150276290
2015-10-01

Air-conditioning apparatus and operation control method therefor

#408
20150267954
2015-09-24

Air conditioner and method for controlling an air conditioner

#409
20150241100
2015-08-27

Heat source system and control method thereof

#410
20150219379
2015-08-06

Transcritical refrigerant vapor compression system high side pressure control

#411
20150219378
2015-08-06

Variable speed drive control for chiller coast-through

#412
20150211775
2015-07-30

On-line energy consumption optimization adaptive to environmental condition

#413
20150204594
2015-07-23

Air conditioning system, method for controlling air conditioning system, and outdoor apparatus of air conditioning system

#414
20150204593
2015-07-23

System and method for controlling an air conditioning system and an outdoor apparatus of the system

#415
20150204592
2015-07-23

Air-conditioning apparatus

#416
20150204567
2015-07-23

HVAC controller and method for operating an HVAC system based on a difference in temperature between return air and supply air and an HVAC system employing the controller or method

#417
20150198361
2015-07-16

Method for controlling a compressor of a refrigeration system, and refrigeration system

#418
20150192343
2015-07-09

Refrigeration device for container

#419
20150192338
2015-07-09

Variable-operating point components for cube ice machines

#420
20150191305
2015-07-09

Refrigeration device for container

#421
20150184885
2015-07-02

Method for controlling a chiller system

#422
20150168038
2015-06-18

Cooling circuit, cold drying installation and method for controlling a cooling circuit

#423
20150159929
2015-06-11

Micro-combined heat and power heat pump defrost procedure

#424
20150159656
2015-06-11

Pump, method for manufacturing pump, and refrigeration cycle device

#425
20150153428
2015-06-04

Cooling device and method for magnetic resonance imaging system

#426
20150135751
2015-05-21

Refrigeration cycle apparatus

#427
20150075766
2015-03-19

Environment control system and devices

#428
20150052925
2015-02-26

Refrigeration apparatus and refrigeration cycle apparatus

#429
20150052921
2015-02-26

Screw compressor drive control

#430
20150047381
2015-02-19

Container refrigeration device

#431
20150040608
2015-02-12

Compressor and air conditioner including the same

#432
20150040307
2015-02-12

System and method for controlling a heat pump for a swimming pool

#433
20150013361
2015-01-15

Closed loop capacity and power management scheme for multi stage transport refrigeration system

#434
20150007604
2015-01-08

Heat exchanger

#435
20150007599
2015-01-08

Constant-temperature liquid circulation apparatus and operation method thereof

#436
20140377102
2014-12-25

Compressor assembly having electronics cooling system and method

#437
20140356138
2014-12-04

Variable-speed multi-stage refrigerant centrifugal compressor with diffusers

#438
20140338380
2014-11-20

Heat pump device, air conditioner, and freezer

#439
20140303805
2014-10-09

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

#440
20140290282
2014-10-02

Refrigerator and cold trap

#441
20140271232
2014-09-18

System and method for controlling compressor motor voltage

#442
20140260404
2014-09-18

High efficiency refrigeration system

#443
20140260388
2014-09-18

Refrigerating apparatus and control device for refrigerating machine

#444
20140260387
2014-09-18

Air-conditioning apparatus

#445
20140260385
2014-09-18

Refrigerating apparatus and corresponding control device

#446
20140250928
2014-09-11

Variable PID enable for compressor control algorithm

#447
20140245764
2014-09-04

Refrigerant cycle system

#448
20140245762
2014-09-04

Heating, ventilation, and air conditioning system

#449
20140230467
2014-08-21

Scroll compressor differential pressure control during compressor shutdown transitions

#450
20140230466
2014-08-21

Scroll compressor differential pressure control during compressor startup transitions

#451
20140230464
2014-08-21

Enthalpy based control for a refrigeration appliance

#452
20140208788
2014-07-31

Centrifugal compressor with extended operating range

#453
20140180483
2014-06-26

Intelligent thermostatic control method and device for an air conditioner blowing cold and hot air

#454
20140174114
2014-06-26

Refrigerant charge assisting device, air-conditioning apparatus, and refrigerant charge assisting program

#455
20140165632
2014-06-19

Refrigerator control system and method

#456
20140165612
2014-06-19

Controlling air conditioner modes

#457
20140150489
2014-06-05

Startup logic for refrigeration system

#458
20140116074
2014-05-01

Heat pump and method of controlling heat based on operating frequency of heating load of heating space thereof

#459
20140083124
2014-03-27

Refrigeration apparatus

#460
20140083123
2014-03-27

Air-conditioning apparatus

#461
20140075982
2014-03-20

Medium voltage power controller

#462
20140023519
2014-01-23

Efficient control algorithm for start-stop operation of a refrigeration unit powered by engine

#463
20130340450
2013-12-26

On-line energy consumption optimization adaptive to environmental condition

#464
20130305756
2013-11-21

Synchronous temperature rate control and apparatus for refrigeration with reduced energy consumption

#465
20130303074
2013-11-14

Ventilation system

#466
20130255293
2013-10-03

Battery system having an evaporative cooling member with a plate portion and a method for cooling the battery system

#467
20130213072
2013-08-22

Combined air-conditioning and hot-water supply system

#468
20130213065
2013-08-22

Dual capillary tube / heat exchanger in combination with cycle priming for reducing charge migration

#469
20130213064
2013-08-22

Refrigerator with variable capacity compressor and cycle priming action through capacity control and associated methods

#470
20130186111
2013-07-25

Air conditioner and starting control method thereof

#471
20130145787
2013-06-13

Screw compressor drive control

#472
20130142669
2013-06-06

Systems and methods for controlling a variable speed water pump

#473
20130136622
2013-05-30

Compression device and a thermodynamic system comprising such a compression device

#474
20130091892
2013-04-18

Manual Vi adjustment mechanism for screw compressors

#475
20130060311
2013-03-07

Heating/ cooling system for indwelling heat exchange catheter

#476
20130047648
2013-02-28

Vehicle air conditioning and heating system providing engine on and engine off operation

#477
20130046365
2013-02-21

Heating/ cooling system for indwelling heat exchange catheter

#478
20130000339
2013-01-03

Air-conditioning apparatus with oil return in a transcritical cycle

#479
20120325426
2012-12-27

Tubing set to interconnect heating/cooling system and indwelling heat exchange catheter

#480
20120318006
2012-12-20

Defrost operations and apparatus for a transport refrigeration system

#481
20120303165
2012-11-29

CONTROL SYSTEM AND METHOD FOR BOTH ENERGY SAVING AND COMFORT CONTROL IN AN AIR CONDITIONING SYSTEM

#482
20120272673
2012-11-01

Container refrigeration apparatus

#483
20120266615
2012-10-25

Adaptable evaporator defrost logic for an aircraft

#484
20120253543
2012-10-04

Controlling operations of vapor compression system

#485
20120240614
2012-09-27

Medium voltage power controller

#486
20120204587
2012-08-16

Temperature control system

#487
20120201698
2012-08-09

Variable speed compressor

#488
20120167602
2012-07-05

Pressure spike reduction for refrigerant systems incorporating a microchannel heat exchanger

#489
20120111032
2012-05-10

Heat pump supply apparatus having a combined use with an air conditioner

#490
20120090337
2012-04-19

Heat pumps with unequal cooling and heating capacities for climates where demand for cooling and heating are unequal, and method of adapting and distributing such heat pumps

#491
20120067065
2012-03-22

Cryopump system and method for controlling the cryopump system

#492
20120060530
2012-03-15

AIR CONDITIONER

#493
20120060526
2012-03-15

Refrigerator energy and temperature control

#494
20120060525
2012-03-15

APPARATUS AND METHOD FOR MONITORING SUPER-HEATING OF REFRIGERANT TO IMPROVE COMPRESSOR EFFICIENCY AND LOWER ENERGY USAGE

#495
20120038120
2012-02-16

System and method for cryogenic cooling

#496
20120036876
2012-02-16

Heat pump system

#497
20120035773
2012-02-09

Efficient computer cooling methods and apparatus

#498
20110314854
2011-12-29

REFRIGERATOR

#499
20110302939
2011-12-15

Cooling system with increased efficiency

#500
20110302936
2011-12-15

Refrigeration system having a variable speed compressor

#501
20110283723
2011-11-24

REFRIGERATION CYCLE APPARATUS

#502
20110283721
2011-11-24

Direct drive system with booster compressor

#503
20110219787
2011-09-15

VARIABLE PID ENABLE FOR COMPRESSOR CONTROL ALGORITHM

#504
20110209490
2011-09-01

Control of multiple zone refrigerant vapor compression systems

#505
20110208325
2011-08-25

Optimizer for two staged refrigeration systems

#506
20110203298
2011-08-25

Heat pump system and control method thereof

#507
20110197605
2011-08-18

Heat exchanger and refrigerant cycle device using the same

#508
20110147198
2011-06-23

VACUUM PUMPING SYSTEM, OPERATING METHOD OF VACUUM PUMPING SYSTEM, REFRIGERATOR, VACUUM PUMP, OPERATING METHOD OF REFRIGERATOR, OPERATION CONTROL METHOD OF TWO-STAGE TYPE REFRIGERATOR, OPERATION CONTROL METHOD OF CRYOPUMP, TWO-STAGE TYPE REFRIGERATOR, CRYOPUMP, SUBSTRATE PROCESSING APPARATUS, AND MANUFACTURING METHOD OF ELECTRONIC DEVICE

#509
20110144811
2011-06-16

Optimizer for single staged refrigeration systems

#510
20110138831
2011-06-16

REFRIGERATION CYCLE APPARATUS

#511
20110138826
2011-06-16

Discrete frequency operation for unit capacity control

#512
20110138825
2011-06-16

Carbon dioxide refrigerant vapor compression system

#513
20110120156
2011-05-26

Refrigeration system with parallel evaporators and variable speed compressor

#514
20110107781
2011-05-12

Startup control apparatus of air conditioner

#515
20110083454
2011-04-14

Control system for operating condenser fans

#516
20110072840
2011-03-31

Heat pump apparatus using supercooling degree to control expansion valve

#517
20110072836
2011-03-31

Refrigeration system having a variable speed compressor

#518
20110048046
2011-03-03

Compressor control system using a variable geometry diffuser

#519
20110041533
2011-02-24

Screw compressor drive control

#520
20110023512
2011-02-03

AIR CONDITIONER

#521
20110008181
2011-01-13

Fixed and variable compressor system capacity control

#522
20100326111
2010-12-30

PLANT FOR PRODUCING SANITARY HOT WATER

#523
20100326109
2010-12-30

Refrigerating apparatus

#524
20100319375
2010-12-23

Air conditioning apparatus with temperature responsive correction of upper limit rotational speed for a compressor

#525
20100313586
2010-12-16

REFRIGERATION CYCLE APPARATUS

#526
20100300125
2010-12-02

Automotive climate system and method of controlling same

#527
20100293976
2010-11-25

Indoor unit and air-conditioning apparatus provided with the same

#528
20100275624
2010-11-04

Air-Conditioning System And Controlling Method For The Same

#529
20100269524
2010-10-28

Vapor compression system

#530
20100263393
2010-10-21

Transport refrigeration system and method of operation

#531
20100247331
2010-09-30

Set of piston compressors and methods for oil compensation

#532
20100246083
2010-09-30

METHOD FOR CONTROLLING ELECTRIC COMPRESSOR

#533
20100236265
2010-09-23

AIR CONDITIONER FOR VEHICLE

#534
20100236264
2010-09-23

COMPRESSOR MOTOR CONTROL

#535
20100218528
2010-09-02

Refrigeration cycle apparatus

#536
20100204838
2010-08-12

ENERGY EFFICIENT AIR CONDITIONING SYSTEM AND METHOD UTILIZING VARIABLE CAPACITY COMPRESSOR AND SENSIBLE HEAT RATIO LOAD MATCHING

#537
20100198409
2010-08-05

Sequencing of variable speed compressors in a chilled liquid cooling system for improved energy efficiency

#538
20100175402
2010-07-15

Electronic refrigeration control system including a variable speed compressor

#539
20100174414
2010-07-08

Power saving air-conditioning system

#540
20100152903
2010-06-17

Refrigerating cycle apparatus and operation control method therefor

#541
20100123016
2010-05-20

System and method for oil return in an HVAC system

#542
20100085000
2010-04-08

Variable speed drive for permanent magnet motor

#543
20100084935
2010-04-08

Permanent magnet synchronous motor and drive system

#544
20100083693
2010-04-08

Variable speed drive with pulse-width modulated speed control

#545
20100083692
2010-04-08

Variable speed drive for permanent magnet motor

#546
20100083680
2010-04-08

System for compressor capacity modulation

#547
20100045105
2010-02-25

INTEGRATED MULTIPLE POWER CONVERSION SYSTEM FOR TRANSPORT REFRIGERATION UNITS

#548
20100003151
2010-01-07

Refrigerant system with multi-speed scroll compressor and economizer circuit

#549
20100000248
2010-01-07

Refrigeration system

#550
20090301702
2009-12-10

Vehicle air conditioning and heating system providing engine on and engine off operation

#551
20090301109
2009-12-10

METHOD AND APPARATUS FOR CONTROL OF CARBON DIOXIDE GAS COOLER PRESSURE BY USE OF A TWO-STAGE COMPRESSOR

#552
20090301106
2009-12-10

Beverage dispensing apparatus and method for beverage dispensing

#553
20090288428
2009-11-26

Icemaker system for a refrigerator

#554
20090230202
2009-09-17

Air conditioning system

#555
20090228150
2009-09-10

HVAC system

#556
20090228149
2009-09-10

Environmental control and power system

#557
20090218077
2009-09-03

Air-conditioner with multi-stage compressor and phase separator

#558
20090165484
2009-07-02

Humidity controller utilizing the pressure differential sensors for varying the compressor capacity

#559
20090120112
2009-05-14

Air conditioner

#560
20090100848
2009-04-23

Electronic device cooling system and electronic device cooling apparatus

#561
20090096452
2009-04-16

HELIUM COMPRESSOR WITH CONTROL FOR REDUCED POWER CONSUMPTION

#562
20090095000
2009-04-16

AIR CONDITIONER

#563
20090090113
2009-04-09

Compressor assembly having electronics cooling system and method

#564
20090024257
2009-01-22

System and method for lowering a temperature of liquid exiting a heat exchanger in a vapor compression system

#565
20090007577
2009-01-08

Rotation speed control device, air conditioner, and rotation speed control method

#566
20080314998
2008-12-25

Temperature control in variable-capacity HVAC system

#567
20080314057
2008-12-25

Refrigerant System With Variable Speed Scroll Compressor and Economizer Circuit

#568
20080307813
2008-12-18

Variable Capacity Multiple Circuit Air Conditioning System

#569
20080302118
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