| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an engine cooling device capable of simplifying a switching-on/off of a bypass path. <P>SOLUTION: The engine cooling device include an engine E, a radiator, a cooling liquid circulation path, and a circulation pump 4. The cooling liquid circulation path includes: a first circulation path 7 circulating a cooling liquid passing through the radiator into the circulation pump; a second circulation path 8 circulating the cooling liquid by bypassing the radiator; an intake path 9 connecting the first circulation path and the second circulation path to an inlet port 4b of the circulation pump; a discharge path 10 making the cooling liquid discharged from the circulation pump flow into a jacket 1; a bypass path 11 making the discharge path communicate with the intake path; a first valve body 12 switching on/off the first circulation path; a second valve body 13 switching on/off the bypass path; and a temperature sensing operation part 16 where a temperature sensing member 15 is cooled by the cooling liquid in the intake path so that the first valve body is switched off and the second valve body is switched on, and where the temperature sensing member is heated by the cooling liquid in the intake path so that the first valve body is switched on and the second valve body is switched off. <P>COPYRIGHT: (C)2013,JPO&INPIT |
