CONTROL DEVICE FOR A HYDROSTATIC REVERSIBLE VEHICLE DRIVE

摘要

A control device for a hydrostatic reversible driving system with a braking device. A main hydraulic circuit includes a hydrostatic pump and a hydraulic motor. The hydraulic control circuit includes a control conduit from which branch conduits arranged in parallel lead into a fluid reservoir and respectively have interposed therein an output control valve operably by the high pressure part of the main circuit. There are also provided a rigid orifice, and an adjustable orifice continuously urged to its closing position and adapted to be opened in conformity with the actuation of the braking device.