发明名称 |
Propelling drive control apparatus for working vehicle |
摘要 |
A propelling drive control apparatus for a working vehicle comprising hydraulically operable friction clutches, a first clutch control valve for selecting between the friction clutches, and a second clutch control valve connected in series to the first clutch control valve. The second clutch control valve is manually switchable to a declutching position for disengaging the friction clutches, a first clutch engaging position for engaging one of the friction clutches, and a second clutch engaging position intermediate between the declutching position the first clutch engaging position. In this second clutch engaging position one of the friction clutches is operable under a lower hydraulic pressure than in the first clutch engaging position.
|
申请公布号 |
US5024306(A) |
申请公布日期 |
1991.06.18 |
申请号 |
US19880272037 |
申请日期 |
1988.11.16 |
申请人 |
KUBOTA, LTD. |
发明人 |
FUKUI, TETSU;YOSHII, TAKASHI;TAKEMURA, TOSHIHIKO;HATTORI, AKIO |
分类号 |
F16D25/12;F16D48/02;F16H59/08;F16H61/02;F16H61/68;F16H61/70 |
主分类号 |
F16D25/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|