| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent an oil temperature from being raised by stirring oil in a differential ring gear in the case where an oil temperature is equal to or higher than a suitable temperature by assisting oil temperature rising by stirring the oil in the differential ring gear in the case where the oil temperature is lower than the suitable temperature.SOLUTION: An oil temperature raising device comprises: a communication path 72 which is provided by communicating a differential ring gear chamber 7 and an oil storage chamber 9 in order to return oil exceeding a predetermined oil level within the differential ring gear chamber 7 to the oil storage chamber 9 and in which a communication end closer to the differential ring gear chamber 7 is formed at a position higher than a maximum oil level in the oil storage chamber 9; and oil level adjustment means 72a-72d for adjusting the quantity of oil to be passed through the communication path 72, so as to keep the oil level in the differential ring gear chamber 7 high when an oil temperature is low, and to keep the oil level in the differential ring gear chamber 7 low when the oil temperature is high.</p> |
