A hydraulic pump (7) driven by the main diesel motor (1) provides the hydraulic power to operate the brakes (11). The diesel motor also drives a variable displacement pump (3) which supplies a hydraulic motor (5). When braking this motor is controlled acco...

The device has a diesel engine central drive source, a displacement pump and a hydraulic motor(s). The pump delivery volume and hence the driving speed for road travel is dependent on the current gas pedal setting. The engine revolution rate can be control...