Patents for F25B 49 - Arrangement or mounting of control or safety devices (13,159) |
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10/26/1993 | US5255977 Method and device for monitoring the efficiency of a condenser |
10/26/1993 | US5255530 System of two zone refrigerator temperature control |
10/26/1993 | US5255529 Environmental control system |
10/26/1993 | US5255523 Method and apparatus for determining the solid fraction of a stored cryogenic refrigeration system |
10/19/1993 | US5253483 Environmental control system |
10/19/1993 | US5253481 Control unit for activating compressor |
10/14/1993 | WO1993020393A1 Refrigerant shortage detecting method and apparatus for air-conditioners |
10/13/1993 | EP0565312A2 Integral motor and control |
10/12/1993 | US5251453 Low refrigerant charge detection especially for automotive air conditioning systems |
10/12/1993 | CA1322858C Cooling apparatus and control method therefor |
10/06/1993 | EP0564123A1 Refrigeration system |
10/06/1993 | EP0564095A2 Method of detecting load current and load current detector |
10/06/1993 | EP0563570A1 Air-conditioning apparatus |
10/05/1993 | US5249431 Residual coolant sensor for air conditioning system |
10/05/1993 | US5249429 Methods of operating a refrigeration system |
10/04/1993 | CA2084466A1 Method of detecting load current |
09/30/1993 | WO1993019333A1 Method and apparatus for efficiently controlling refrigeration and air conditioning systems |
09/28/1993 | US5247989 Modulated temperature control for environmental chamber |
09/28/1993 | US5247806 Multi-system air conditioner |
09/28/1993 | US5247805 Fan cycling means of head pressure control |
09/22/1993 | EP0427836B1 Process and device for monitoring the efficiency of a condenser |
09/21/1993 | US5245837 Air-conditioning apparatus wherein a plurality of indoor units are connected to outdoor unit |
09/16/1993 | WO1993018356A1 Control system for an air conditioning/refrigeration system |
09/16/1993 | DE4306560A1 Part load regulation for evaporation cooling towers in refrigeration plants - using new development of progressive removal of cooling limit range to give output physical characteristic with decreasing water temp. in flow regulation |
09/16/1993 | DE4207859A1 Refrigerant circuit for car air conditioning system - has tank evacuated by compressor to suck in refrigerant from cooling circuit if crash sensor triggers valve |
09/16/1993 | CA2131453A1 Control system for an air conditioning/refrigeration system |
09/14/1993 | US5243829 Low refrigerant charge detection using thermal expansion valve stroke measurement |
09/07/1993 | US5241833 Air conditioning apparatus |
09/07/1993 | US5241832 Automobile air conditioning system |
09/07/1993 | CA2039337C Thermostat interface for a refrigeration system controller |
09/01/1993 | EP0557747A2 Measuring evaporator load in an automotive air conditioning system for compressor clutch control |
09/01/1993 | EP0557543A1 Variable speed motor control |
08/31/1993 | US5240651 Adiabatic modulator proportioning refrigeration controller desuperheater |
08/31/1993 | US5239865 Process for monitoring the coolant level in a cooling system |
08/18/1993 | CN2140503Y Explosion-proof control console of refrigerating compressor |
08/10/1993 | US5235505 Overcurrent detector |
08/04/1993 | EP0424474B1 Method of operating a vapour compression cycle under trans- or supercritical conditions |
08/04/1993 | EP0397818B1 A process and device for changing the actual rotation speed of a multi-phase non-synchronous motor and a suitable motor system for applying the process |
08/03/1993 | US5231846 Method of compressor staging for multi-compressor multi-circuited refrigeration systems |
07/28/1993 | CN1074747A Automatic chiller stopping squence |
07/27/1993 | US5230223 Method and apparatus for efficiently controlling refrigeration and air conditioning systems |
07/27/1993 | US5230222 Compressor crankcase heater control |
07/21/1993 | EP0552127A1 Automatic chiller stopping sequence |
07/20/1993 | US5228304 Refrigerant loss detector and alarm |
07/14/1993 | EP0551008A1 Control apparatus for use in automotive air conditioning system |
07/13/1993 | US5227704 Motor controls, refrigeration systems and methods of motor operation and control |
07/13/1993 | US5226472 Modulated temperature control for environmental chamber |
07/06/1993 | US5224355 Plural temperature adjustment apparatus for refrigerator |
07/06/1993 | US5224352 Control device for an absorption refrigeration machine |
07/01/1993 | DE4243634A1 Defrosting of inverter-driven air conditioning plant - using outdoor measured temperature to initiate defrost, with compressor frequency controlled to give constant defrost time |
06/30/1993 | CN1073760A Control method for removing frost from inverter-type air conditioner |
06/29/1993 | US5222371 Air conditioner of multichamber type |
06/29/1993 | US5222370 Automatic chiller stopping sequence |
06/29/1993 | US5222368 Method of operating a transport refigeration unit |
06/16/1993 | EP0546982A1 Compressor crankcase heater control |
06/15/1993 | US5218837 Control system for controlling the operation of an air conditioning compressor and method of making the same |
06/09/1993 | EP0544784A1 A differential float means and sensor means incorporating same. |
06/08/1993 | US5216897 Preventing simultaneous start of air conditioners during recovery from a power failure |
06/08/1993 | US5216896 Temperature control system for absorption refrigerating apparatus |
06/08/1993 | US5216894 Control switch |
06/08/1993 | US5216893 Device for controlling the operation of a refrigeration appliance, such as a domestic refrigerator, a freezer or the like |
06/01/1993 | US5214930 Method for regulating the temperature of a medium by means of a temperature control loop, and a temperature-regulating device for implementing the method |
06/01/1993 | US5214918 Refrigerator and method for indicating refrigerant amount |
05/26/1993 | EP0543622A2 Air conditioner and control apparatus therefor |
05/26/1993 | CN1072492A Controlling apparatus for air conditioner |
05/19/1993 | EP0542665A1 Automatic chiller plant balancing |
05/18/1993 | US5211026 Combination lift piston/axial port unloader arrangement for a screw compresser |
05/12/1993 | EP0541157A1 Refrigerating device |
05/11/1993 | US5210684 Apparatus and method for controlling the operating frequency of compressor in air conditioning apparatus |
05/11/1993 | US5209076 Control system for preventing compressor damage in a refrigeration system |
05/11/1993 | US5209075 Current controlling apparatus and method for air conditioning apparatus |
05/11/1993 | CA1317655C Temperature sensing circuit |
05/05/1993 | EP0539944A2 Expansion valve and temperature sensing assembly therefor |
05/04/1993 | US5207072 Unloading structure for compressor of refrigeration system |
04/27/1993 | US5205131 Refrigerator system with subcooling flow control |
04/21/1993 | EP0538179A1 High to low side bypass to prevent reverse rotation |
04/21/1993 | EP0537673A2 Method for controlling the rotational speed of a motor-compressor used in an air conditioner |
04/20/1993 | US5203179 Control system for an air conditioning/refrigeration system |
04/13/1993 | US5201862 Low refrigerant charge protection method |
04/13/1993 | US5201190 Refrigerator with subcooling flow control valve |
04/13/1993 | US5201187 System for controlling cooling equipment |
04/13/1993 | US5201186 Method of operating a transport refrigeration unit |
04/13/1993 | CA1315998C Refrigeration system |
04/07/1993 | CN2129396Y Pressure-differential controller for refrigerating compressor |
04/06/1993 | US5200644 Air conditioning system having battery for increasing efficiency |
04/01/1993 | WO1993006423A1 Method of high-side pressure regulation in transcritical vapor compression cycle device |
03/30/1993 | US5197298 Sensor and control system for an automotive air conditioning system |
03/23/1993 | US5195329 Automatic chiller plant balancing |
03/23/1993 | US5195327 Compressor drive control method for cooling and heating dual-purpose air conditioner |
03/09/1993 | US5191768 Automobile air conditioner compressor discharge capacity controller |
03/04/1993 | WO1993004286A1 Capacity control for screw compressors |
03/02/1993 | US5191643 Method and apparatus for refrigeration control and display |
03/02/1993 | US5189886 Refrigerating system having a compressor with an internally and externally controlled variable displacement mechanism |
02/24/1993 | EP0528102A2 Protection circuit in inverter for refrigerators |
02/23/1993 | US5187942 Refrigerant overcharge prevention system |
02/18/1993 | WO1993003311A1 Temperature control apparatus and a central unit for temperature control apparatus |
02/18/1993 | CA2114938A1 Temperature control apparatus and a central unit for temperature control apparatus |
02/17/1993 | EP0527561A1 Apparatus and method for infusing a mixture into a closed loop system |
02/16/1993 | US5186016 Defrosting control method and apparatus for air conditioner |
02/16/1993 | US5186014 Low refrigerant charge detection system for a heat pump |