To prevent a heated part from being overheated, without decreasing structure strength of a heat pipe.
An exhaust passage 3 of an internal combustion engine is connected to the heated part 5 of an air duct or the like, a heat pipe hydraulic fluid (water) evaporated with exhaust heat by a heat receiving part 1c of the heat pipe 1 is condensed by a heat radiation part 1d of the heat pipe 1, and the heated part is heated by the exhaust heat. An outer cylinder 10 is provided to cover the periphery of a heat pipe 1 casing, the exhaust passage 3 is connected to the heated part 5 via insulating materials 13, 15, and a heat pipe main body is supported via an insulating material 11. The structural strength is thereby maintained by the outer cylinder, no load is thereby applied onto the heat pipe itself, and a wall thickness of the casing is reduced in this manner. The heated part is also restrained from being overheated because heat is restrained from being conducted from a heating part passing through the outer cylinder to the heated part, by the insulating materials.
GUPTA RAMESH
EXXONMOBIL RES & ENG CO (US)
| JPH06112001A | 1994-04-22 | |||
| JPH0814779A | 1996-01-19 |
Jun Tsuruta
Tetsuro Shimada
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