| 摘要 |
A transmission system including a housing (12) having a sump (14), the housing containing a crown wheel (16) and pinion (28), the transmission system further including an oil reservoir (18) and a pump (20) selectively operable to pump fluid from the oil reservoir (18) to the sump (14) for lubricating the crown wheel (16), the pump (20) also being selectively operable to pump fluid from the sump (14) to the reservoir (18). |
