| 摘要 |
PROBLEM TO BE SOLVED: To circulate condensed liquid refrigerant quickly through an evaporation chamber while preventing the liquid refrigerant from being shifted when a vehicle is climbing a slope, accelerating or decelerating or turning. SOLUTION: A duct 11 coupling an evaporation chamber 7 and a condensation chamber 9 is fitted with a filter 21 comprising a first filter on the outer layer having high capillarity and a second filter on the inner layer having low capillarity. Since abrupt shift of liquid refrigerant 5 is prevented by the filter 21, the heat transfer surface of the evaporation chamber 7 can be utilized effectively without causing run out of liquid (dry out) when the liquid refrigerant 5 moves through the filter 21 to the condensation chamber 9 side. Since first filter on the outer layer is made of a material having high capillarity, condensed liquid refrigerant 5 can be circulated quickly through the evaporation chamber 7. |
