| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve further energy saving by accelerating the temperature rise of oil to be fed to a power device during the cold starting of the power device thereby shortening the warming time, and to prolong the life of the oil by suppressing the excessive temperature rise of the oil. <P>SOLUTION: An oil pan 1 includes an oil pan body 10, and an oil filtering device 20 constituted to demarcate a return oil flow-in passage T. The downstream side of the return oil flow-in passage T is connected to an oil suction part of the power device. The oil filtering device 20 has a flow tube communication port 41 to be communicated with the upstream side of the return oil flow-in passage T, and an upper-and-lower space communication port 40. When the temperature of oil is equal to or lower than the predetermined value, the flow tube communication port 41 is opened, and the upper-and-lower space communication port 40 is closed. When the temperature of oil is higher than the predetermined value, the flow tube communication port 41 is closed, and the upper-and-lower space communication port 40 is opened. <P>COPYRIGHT: (C)2012,JPO&INPIT |
