| 摘要 |
PURPOSE:To prevent clogging of an intake path due to adhesion of ice or snow by providing means for heating the working liquid in the working liquid evapo rating section of a heat pipe in the air intake port thereby melting ice and snow. CONSTITUTION:High temperature heat medium 14 heat-exchanged with engine exhaust heat in an exhaust duct 6 is circulated through heat medium circulation line 13 to a heat-exchange pipe 8c in heat pipe 8 to evaporate the working liquid 15 in the header pipe 8a of heat pipe 8 thus to diffuse the vapor in the heat pipe then radiate heat through condensation pipe 8b to the radiation fins 9 to be condensed. Condensed working liquid 15 will flow down in the heat pipe and circulate to the evaporating section or a liquid sump header pipe 8a thus to form the evaporation/condensation circulating cycle. Ice and snow adhered to the air intake port 4 are removed by the heat radiated from the condensation pipe 8b to the radiation fins 9.
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