| 摘要 |
<P>PROBLEM TO BE SOLVED: To optimize an open-and-close condition of a thermostat. <P>SOLUTION: An internal combustion engine cooling system 1 circulates a coolant to a coolant passage 12 of which the specific heat is increased higher at a plurality of predetermined temperatures than at other than the predetermined temperature. The system includes: a radiator 13; a bypass passage 14 for bypassing the radiator 13; the thermostat 15; and a control device 30 which opens the thermostat 15 at any of the plurality of predetermined temperatures and changes a temperature of opening the thermostat 15 according to an operation condition of the internal combustion engine 1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
