| 摘要 |
PROBLEM TO BE SOLVED: To provide a control valve of a cooling system capable of preventing the occurrence of cavitation, and capable of improving reliability of the temperature adjusting function of a refrigerant, by effectively using the refrigerant, or adjusting the temperature of the refrigerant. SOLUTION: This cooling system mounted on a vehicle, is composed of a cooling circuit provided with an engine and circulating a coolant, an exhaust heat system flow passage connected to the cooling circuit and provided with a radiator, a thermostat arranged in a confluent position between the exhaust heat system flow passage and the cooling circuit and controlling a flow rate of the coolant to the radiator, a water pump arranged downstream of the thermostat and forcibly feeding the coolant to the cooling circuit, and a control valve 10 for controlling the coolant flowing in the cooling circuit. The control valve 10 has a valve element 15 rotatably journaled in a first cover 11. The valve element 15 has first and second valve plates 17 and 18 formed around a rotary shaft 16. The first and second valve plates 17 and 18 are formed so as to become mutually different in the pressure receiving area for receiving pressure from the coolant. COPYRIGHT: (C)2006,JPO&NCIPI
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