公开(公告)号：US3616869A

公开(公告)日：1971-11-02

申请号：US3616869D

申请日：1969-10-13

Applicant: EXCEL IND

Inventor： RILLING RAYMOND J

IPC: B60K17/10 ,  B62D11/18 ,  B62D11/04

CPC classification number: B60K17/10 ,  B62D11/18 ,  Y10T74/20213

Abstract: A propulsion, steering, and braking system for a vehicle having a pair of axially aligned ground-engaging wheels, said system including a prime mover, a pair of hydraulic pumps driven by said prime mover and each operable to drive a hydraulic motor to turn one of said wheels, each hydraulic pump having a control lever having a neutral position in which its delivery rate is zero and being movable selectively in opposite directions from said neutral position to cause operation of the associated motor in relatively opposite directions, manual means for moving said control levers, manually operable brake means for both of said wheels, and means operable by application of said brake means to return both of said control levers to their neutral positions.