Refractory element
Refractory element
Refrigerant directly cooled capacitors
Refrigerated air conditioning system using diaphragm pump
Refrigeration evaporative booster combination
Refrigeration system with evaporative subcooling
Refrigeration system with evaporative subcooling
Refrigeration unit using ammonia
Refrigeration/evaporative cooler unit
Refrigerator air filter
Regenerative evaporative cooler
Reticulated foam sleeve for evaporative cooling unit spray condu
Retrofit louver system for evaporative air coolers
Ripening controlling chamber apparatus
Room ejection unit of central air-conditioning
Rotary mixing damper method and means
Rotating disk evaporative cooler
Rupture-preventing air-releasing water-freezing reservoir