发明名称 |
VEHICLE PROPELLING APPARATUS |
摘要 |
A propelling apparatus for a vehicle switchable between a four wheel drive mode and a two wheel drive mode. The apparatus comprises a hydraulic pump for driving hydraulic motors associated with front wheels and rear wheels, respectively. A shutoff valve is provided on oil lines extending between the hydraulic pump and one of the hydraulic motors, e.g. the motor associated with the front wheels. The shutoff valve is operable to establish the two wheel drive mode for driving only the rear wheels. A pumping preventive device prevents the hydraulic motor associated with the front wheels from effecting pumping action due to power transmitted from the front wheels when the shutoff valve is operated.
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申请公布号 |
US5117936(A) |
申请公布日期 |
1992.06.02 |
申请号 |
US19900577942 |
申请日期 |
1990.09.05 |
申请人 |
KUBOTA CORPORATION |
发明人 |
NAKAMURA, NORIMI;FUKUDA, MINORU;KAWAKITA, HIROAKI |
分类号 |
B60K17/356;F16H61/444;F16H61/452 |
主分类号 |
B60K17/356 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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