Patents
Sitemap › F25 - Refrigeration or cooling; Combined heating and refrigeration systems; Heat pump systems; Manufacture or storage of ice; Liquefaction or solidification of gases › F25B - Refrigeration machines, plants, or systems; Combined heating and refrigeration systems; Heat pump systems › F25B 47 - Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
Patents for F25B 47 - Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass (3,979)
12/1993
12/09/1993WO1993024795A1 System for controlling operation of refrigerating device
12/07/1993US5267450 Air conditioning apparatus
12/07/1993US5267446 Air conditioning and refrigeration systems utilizing a cryogen
12/07/1993US5267443 Air conditioning and refrigeration methods and apparatus utilizing a cryogen
11/1993
11/23/1993US5263892 High efficiency heat exchanger system with glycol and refrigerant loops
11/11/1993WO1993022606A1 Passive defrost system using waste heat
11/09/1993US5259214 Air conditioning system
11/09/1993US5259198 Air conditioning and refrigeration systems utilizing a cryogen
11/02/1993US5257506 Defrost control
10/1993
10/19/1993US5253523 Absorption type chiller
10/12/1993CA1322859C Refrigerator
10/06/1993EP0563474A1 Stack type evaporator
09/1993
09/16/1993WO1993018351A1 Apparatus for the heating or cooling of a gaseous or liquid medium
07/1993
07/27/1993CA1320647C2 Absorption refrigeration and heat pump system
07/20/1993US5228301 Methods and apparatus for operating a refrigeration system
07/13/1993US5226285 Self-cleaning heat exchanger fan assembly and controls
07/06/1993US5224357 Modular tube bundle heat exchanger and geothermal heat pump system
07/01/1993DE4243634A1 Defrosting of inverter-driven air conditioning plant - using outdoor measured temperature to initiate defrost, with compressor frequency controlled to give constant defrost time
06/1993
06/30/1993CN1073760A Control method for removing frost from inverter-type air conditioner
06/24/1993DE4242167A1 System of containers in coolant circuit of refrigerator - allows satd. vapour to be drawn stepwise from one or more vapour spaces into defrosting network
06/23/1993EP0203961B1 Absorption refrigeration and heat pump system
06/15/1993US5218836 Measuring evaporator load in an automotive air conditioning system for compressor clutch control using evaporator inlet temperature
06/01/1993US5214935 Fluid conditioning apparatus and system
05/1993
05/18/1993US5211025 Slug surge suppressor for refrigeration and air conditioning systems
05/05/1993EP0539816A1 Apparatus for defrosting refrigeration driers at temperatures below 0 degrees Celcius
05/04/1993US5207072 Unloading structure for compressor of refrigeration system
05/01/1993CA2081502A1 Apparatus for the defrosting of refrigerating driers below 0° c
04/1993
04/13/1993US5201185 Method of operating a transport refrigeration unit
04/13/1993CA1316000C Low temperature showcase
03/1993
03/30/1993US5197297 Transport refrigeration system having compressor over-temperature protection in all operating modes
03/24/1993CN1070256A Refrigerating system
03/04/1993WO1992022777A3 A full-range, high-efficiency liquid chiller
03/03/1993EP0529882A2 Methods and apparatus for operating a refrigeration system
03/03/1993EP0529293A1 Refrigerating system
02/1993
02/16/1993US5186022 Evaporator structure for refrigerator-freezer
02/16/1993US5186016 Defrosting control method and apparatus for air conditioner
12/1992
12/30/1992EP0520384A2 Process of suppressing corrosion of a heat exchanging apparatus
12/29/1992US5174123 Methods and apparatus for operating a refrigeration system
12/23/1992WO1992022777A2 A full-range, high-efficiency liquid chiller
12/23/1992CN2125795U Stain slag recovery treating device for centrifugal air conditioner group
12/02/1992EP0515575A1 Fluid conditioning apparatus and system
11/1992
11/24/1992US5165250 Air conditioning system with thermal storage cycle control
11/17/1992US5163503 Multi-type air conditioner with dew formation protection function in distribution unit
10/1992
10/27/1992US5157933 Transport refrigeration system having means for achieving and maintaining increased heating capacity
10/20/1992US5156014 Air conditioning apparatus
10/20/1992US5156010 Defrost control method for a heat pump
09/1992
09/29/1992US5150582 Multiple air conditioning apparatus
09/23/1992EP0505315A1 Defrost control
09/23/1992EP0504455A1 Electrical heat pump and condensing module therefor
08/1992
08/18/1992US5138843 Method for operating an open show-case
08/11/1992CA1306111C Heating apparatus for low power vehicles
07/1992
07/01/1992EP0492168A2 Air-conditioning apparatus
05/1992
05/19/1992CA1300900C Hot gas defrost system for refrigeration systems and apparatus therefor
05/13/1992EP0485203A1 Air conditioning system
05/12/1992CA1300387C Refrigeration apparatus
04/1992
04/21/1992US5105632 Refrigeration system having liquefied refrigerant control
04/21/1992US5105629 Heat pump system
04/14/1992US5105096 Transport refrigeration system with stand-by compressor drive motor also operable as a generator
04/01/1992EP0477475A2 An improved refrigeration circuit and method of de-frosting it
03/1992
03/31/1992US5099655 Refrigeration system for flooded shell evaporator
03/31/1992CA1298383C Adaptive defrost system with ambient condition change detector
03/17/1992US5095711 Method and apparatus for enhancement of heat pump defrost
03/04/1992EP0473218A2 Evaporator core having biocidal fixture
02/1992
02/28/1992CA2038655A1 Evaporator core having biocidal fixture
02/26/1992CN1015657B Operation control method for air conditioner of heat pump type
02/12/1992EP0470241A1 Hot gas defrost refrigeration system
02/12/1992EP0470238A1 Hot gas defrost refrigeration system
02/11/1992CA1295545C Method and device for compression of gases
01/1992
01/29/1992EP0468038A1 Absorption refrigeration and heat pump system with defrost
12/1991
12/31/1991US5076068 Cooling device for a plurality of coolant circuits
12/27/1991EP0462524A2 Defrost control method for a heat pump
12/25/1991CN1015193B Compressor for heat pump and method of operating said compressor
12/24/1991US5074120 Multi-type air-conditioning system with fast hot starting for heating operation
12/24/1991CA1293493C Closing and injection valve
12/17/1991US5072595 Apparatus for detecting small bubbles in a pressurized fluid stream
12/10/1991US5070707 Shockless system and hot gas valve for refrigeration and air conditioning
11/1991
11/19/1991US5065584 Hot gas bypass defrosting system
11/13/1991EP0316391B1 Process for producing cold by solid-gas reaction
11/05/1991US5062571 Temperature sensing control for refrigeration system
10/1991
10/23/1991EP0453271A2 Air conditioning apparatus
10/22/1991US5058395 Slug surge suppressor for refrigeration and air conditioning systems
10/15/1991US5056327 Hot gas defrost refrigeration system
10/02/1991EP0449641A2 Air conditioning system
10/01/1991US5052191 Method and apparatus for heat pump defrost
09/1991
09/25/1991EP0448203A1 Heat machines
09/24/1991US5050400 Simplified hot gas defrost refrigeration system
09/17/1991US5049044 Compressor for heat pump and method of operating said compressor
09/17/1991CA1288961C Integrated heat pump system
09/10/1991US5046325 Refrigerating circuit apparatus with two stage compressor and heat storage tank
09/10/1991US5046323 Multi-system air conditioner
09/10/1991CA1288606C Heat pump system with hot water device
09/05/1991WO1991013299A1 Hot gas defrost refrigeration system
09/05/1991WO1991013298A1 Hot gas defrost refrigeration system
09/05/1991WO1991012990A1 Fluid conditioning apparatus and system
09/05/1991CA2053296A1 Hot gas defrost refrigeration system
08/1991
08/29/1991DE4005728A1 Vehicle refrigeration circuit - has electrically-controlled thermostatic expansion valve controlled by line temp. between compressor and condenser
08/28/1991EP0443099A2 Refrigeration system
08/27/1991US5042575 Evaporator core having biocidal fixture
08/27/1991US5042268 Refrigeration
08/22/1991WO1991012470A1 Absorption refrigeration and heat pump system with defrost
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