Patent ID: 7886550
Filing Date: 2011-02-15
Classification: F25B

Abstract:
1. A refrigerating machine comprising: a compressor operable to compress a refrigerant; a radiator operable to radiate heat from the refrigerant discharged from the compressor; a high internal pressure type expander operable to expand the refrigerant discharged from the radiator; an evaporator operable to evaporate the refrigerant discharged from the expander; the compressor, the radiator, the expander, and the evaporator being connected in series; a refrigerant flow regulator operable to regulate an amount of flow of the refrigerant that flows into the expander, the refrigerant flow regulator comprising an on-off valve disposed between an upstream side of the expander and a downstream side of the radiator; and a controller operable to control the compressor and the refrigerant flow regulator, the controller being configured to: close the on-off valve when operation of the compressor has stopped, thereby reducing an amount of refrigerant flowing into the expander.