| 摘要 |
PROBLEM TO BE SOLVED: To provide a hose as a heater hose to lead the engine cooling water to the heater core of an air-conditioner device for a vehicle, by overcoming such a problem that the thermal load conditions become severer than conventional ones, which may result in a drop of the durability due to the thermal load. SOLUTION: Radiating fins 4 are formed on the peripheral surface of a cylindrical rubber layer 2 in which the engine cooling water flows so that the heat radiation performance is enhanced, and a drop of the durability of the hose due to the thermal load is precluded. The fins 4 are arranged radially around the rubber layer 2, and the rubber layer 2 and fins 4 are formed in a single piece molding by means of extruding process. COPYRIGHT: (C)2003,JPO
|
