| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve operation efficiency more than a conventional electric equipment cooling system. <P>SOLUTION: A circulating passage 16 is connected to an inverter 12 and first and second motor generators MG1 and MG2. A plurality of branch passages 18 and 20 are formed in the circulating passage 16, and control valves 28 and 30 are also arranged for controlling a flow rate of a coolant flowing in the respective branch passages 18 and 20. The circulating passage can be switched to various cooling passages by the control valves 18 and 20, and the coolant can be sent only to the equipment of requiring cooling. As a result of this, a liquid sending quantity of the coolant is reduced, and electric power consumption of a cooling fan 38 arranged in a water pump 36 and a radiator 14 for sending the coolant, can be reduced, and an efficient cooling system can be provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
