| 发明名称 |
HYDRAULIC TRANSMISSION DEVICE |
| 摘要 |
Hydraulic transmission apparatus (20) including a pump (24) having a variable cylinder capacity and feeding one or more hydraulic motors (26A, 26B), and a control unit (50). In the apparatus, the feed and discharge orifices of the motors are arranged in such a manner that, when the pressures at said orifices are equal, the outlet torque from the motors is zero. To make the apparatus inactive, without physically bypassing the motors, the control unit is suitable for operating the apparatus in a “torque-free” mode by regulating the cylinder capacity of the pump in such a manner that the pressures at said feed and discharge orifices remain substantially equal. |
| 申请公布号 |
US2016046269(A1) |
申请公布日期 |
2016.02.18 |
| 申请号 |
US201414782062 |
申请日期 |
2014.04.03 |
| 申请人 |
POCLAIN HYDRAULICS INDUSTRIE |
发明人 |
PRIGENT André;HOUILLON Pierre-Louis;LAMBEY Julien |
| 分类号 |
B60T11/10;F16H61/472;F16H39/42;F16H61/431 |
主分类号 |
B60T11/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Hydraulic transmission apparatus comprising:
a pump having a variable cylinder capacity; at least one hydraulic motor, fed by the pump; and a control unit; wherein: said at least one motor is arranged in such a manner that when the pressures in the feed and discharge orifices of said at least one motor are equal, the outlet torque from said at least one motor is zero; and in an operating mode of the apparatus, the control unit is suitable for operating the apparatus in a “torque-free” mode by regulating the cylinder capacity of the pump in such a manner that the pressures at said feed and discharge orifices remain substantially equal. |
| 地址 |
Verberie FR |
