| 摘要 |
PROBLEM TO BE SOLVED: To improve heating performance by a heater core 18 in a cylinder head of a liquid-cooled internal combustion engine comprising on one side face 4c a cooling-liquid outlet port 11 to a radiator 10, a return port 12 of the cooling liquid from the radiator, and a cooling-liquid supply port 19 to the heater core 18 for a car heater. SOLUTION: The cooling-liquid supply port 19 to the heater core 8 is positioned lower than the cooling-liquid outlet port 11 to the radiator 10. COPYRIGHT: (C)2007,JPO&INPIT
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