Patent ID: 6305486
Filing Date: 2001-10-23
Classification: B60K,F16H

Abstract:
A hydrostatic drive for a utility vehicle of the type having a prime mover and at least two-wheels, comprising:two fixed displacement hydraulic motors, each motor having an forward port and a reverse port, and an output shaft connected to a different one of the wheels for imparting rotation thereon in response to fluid flow through the motor;a variable displacement pump driven by the prime mover and being adapted to deliver a flow of hydraulic fluid, the variable displacement pump having a forward port interconnected with the forward ports of the motors for permitting fluid flow therebetween and a reverse port interconnected with the reverse ports of the motors for permitting fluid flow therebetween; anda flow control valve interconnected between the pump and the motors and being adapted to bypass fluid flow around the motors until the rate of flow from the pump reaches a predetermined level.