| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cooling water circuit for an engine, capable of preventing staying of water vapor generated in a turbo-supercharger, simplifying a structure and making cooling of the engine and warming sufficient. <P>SOLUTION: The cooling water circuit 10 for the engine 1 comprises: a main circuit 11 for circulating cooling water pressure-fed from a water pump 6 to the inside of the engine 1, a thermostat valve 9 and a radiator 30 in the order; and a branch circuit 12 for cooling the turbo-supercharger 3 branched from a position between the water pump 6 in the main circuit 11 and the thermostat valve 9. The branch circuit 12 comprises: a turbo-flowing-in flow passage 22 for communicating the main circuit 11 with the turbo-supercharger 3; and an upper tank returning flow passage 23 for communicating the turbo-supercharger 3 with the upper tank 31 of the radiator 30. A throttle 230 is provided on the turbo-flowing-in flow passage 22. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
