To prevent refrigeration capacity from lowering by eliminating valves disposed between the casing of an adsorber, the casing of an evaporator and the casing of a condenser.
A heat exchanger 230 serving as an evaporator and a condenser is provided with fins 232. Since the surface area can be prevented from decreasing at a part function as an evaporator or a condenser, heat exchanging capacity as an evaporator or a condenser can be prevented from lowering. Since liquid phase refrigerant evaporating (boiling) and scattering to the upper side touch a part of the heat exchanger 230 located above the liquid level at high probability, the scattering liquid phase refrigerant can also be evaporated. Since a small heat exchanger 230 can serve as an evaporator and a condenser, no valve is required in the vacuum system.
NAGASHIMA HISAO
SATO HIDEAKI
TANAKA YOSHIAKI
HONDA SHIN
ISHII KATSUYA
YANO KAZUHISA
TOYOTA CENTRAL RES & DEV
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