TRACTOR PRO-SHAFT CLOSED-LOOP DRIVE Russian patent published in 2014 - IPC B60K17/28 

FIELD: transport.

SUBSTANCE: invention relates to engine power takeoff devices. Drive is composed of separate-module unit with differential planetary train is integrated with matching reduction gearing and tractor gearbox to make a single module arranged in common crankcase. Fluid power drive is composed of two separate modules, i.e. module with controlled fluid machine and that with uncontrolled fluid machine, both being arranged at planetary epicyclic unit housing Both fluid power drives represents a reversing design. Note here that module with controlled said drive is articulated by appropriate matching reduction gear with pto-shaft IN/OUT clutch or directly with said pto-shaft. Said module with controlled said drive is articulated by appropriate matching reduction gear with control link of planetary gearing. To disconnect idle pro-shaft the brake is used integrated with pro-shaft clutch.

EFFECT: higher efficiency of the drive.

2 cl, 2 dwg