| 摘要 |
PURPOSE:To reduce consumption horse power and noise by providing in a driven rotation part a subordinate disc having a temperature sensitive body and a cooling fan so that they are located in a sealed box and the sealed box is rotated and driven in order to make the subordinate side lightweight and to make a bearing small-sized. CONSTITUTION:A sealed box made of aluminum alloy material is rotated and driven, a temperature sensitive body 13 made of a bimetal and a cooling fan are provided at a rotary body 5 and a subordinate disc 8 is installed at the position located in the sealed box 2. Also, an oil reserving chamber 11 and a torque transmission chamber 7 are provided by dividing a circular recession groove part 9 by a partition 10, and a flow out control hole 12 is opened and closed by driving a valve member 14 by the temperature sensitive body 13 through a connecting rod 17. Accordingly, the subordinate side is made lightweight and the use of a bearing 4 with lower thermal conductivity and the rotary member 5 is enabled. And the bearing 4 can be made small-sized, consumption horsepower can be cut down and noise can be reduced. |
