Hydrostatic drive system for low floor vehicle

摘要

A hydrostatic drive system for a mass transit vehicle includes an engine that drives a hydraulic pump. The hydraulic pump circulates high-pressure fluid through a circuit to two slave motors disposed at each driven wheel. The slave motors include a shaft rotated in proportion to the flow of fluid to drive a driven gear disposed on an axle supported by the frame of the motor vehicle. The hydrostatic drive transmits power from the engine through fluid pressure circulated by a hydraulic pump to the slave motors through a circuit composed of tubes or hoses. The tubes or hoses require little space compared to an axle assembly of a prior art inverted portal axle system.