Refrigerating cycle apparatus e.g. air conditioner for vehicle has evaporator which evaporates low voltage pressure refrigerant pressure-reduced by expansion valve

摘要

A heat radiator cools the discharged refrigerant from compressor. An expansion valve performs pressure-reduction of heat-radiator exit-side refrigerant. An evaporator evaporates low voltage pressure refrigerant pressure-reduced by expansion valve. The total refrigerant filling amount is set to predetermined relationship on a high-load driving condition when the degree of superheat of evaporator exit side refrigerant is set to refrigerant filling amount used as 0 to 100 degree Celsius. An independent claim is included for a manufacturing method of refrigerating-cycle apparatus.