Patent ID: 6397613
Filing Date: 2002-06-04
Classification: B60H,F25B

Abstract:
A refrigerating cycle apparatus having a compressor, a condenser, a first pressure-reducing device and an evaporator, said refrigerating cycle apparatus comprising:a hot gas bypass conduit directly connecting the discharge side of the compressor to the inlet side of the evaporator; a second pressure-reducing device provided in the hot gas bypass conduit for reducing in pressure gas refrigerant delivered by the compressor, wherein said evaporator is heated and acts as a radiator when in a hot gas bypass heating mode, said radiator being heated by gas refrigerant from a discharge side of said compressor directly through said hot gas bypass conduit; stop control means stopping the compressor when a physical quantity representing a high-side pressure at the compressor discharge side rises above a set value during said hot gas bypass heating mode; and operation restart control means for restarting the compressor while the compressor is stopped, said operation restart control means restarting said compressor when a physical quantity representing a heating capacity of the evaporator falls below a set value which indicates that there is no heating capacity.