LOOP TYPE THERMO SYPHONE, HEAT RADIATION SYSTEM, HEAT EXCHANGE SYSTEM, AND STIRLING COOLING CHAMBER

摘要

A natural circulation type circuit, comprising an evaporator (3) installed around the heat radiating part of a Stirling refrigerating machine to absorb heat from the heat radiating part by the vaporization of refrigerant, a condenser disposed at a higher position than the evaporator (3) to condense the refrigerant in a gas phase state, a conduit (8) leading the refrigerant from the evaporator (3) to the condenser, and a return pipe (9) returning the liquid refrigerant from the condenser to the evaporator (3). In the evaporator (3), a distance between the opening part (9A) of the return pipe (9) and the inner peripheral surface (11A) of the evaporator (3) is made smaller than a distance between the opening part (8A) of the conduit (8) and the inner peripheral surface (11A).