| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power transmission device capable of effectively cooling the interior of a coupling device, and effectively raising temperature of an oil lubricating a differential gear. <P>SOLUTION: The power transmission device 100 includes an electronic control coupling 30 and a rear differential 80, wherein the electronic control coupling 30 includes a pilot clutch 61 engaged/released by an electromagnetic force of an electromagnet 51, and a main clutch 71 which is interlocked with an engagement/release operation of the pilot clutch 61 to be engaged/released. The power transmission device is, further, provided with a supply path which supplies a differential oil lubricating the rear differential 80 into the electronic control coupling 30, and a return path which returns the differential oil supplied in the electronic control coupling 30 into the rear differential 80. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
