초록 ▼

A drive system for a hydraulically driven vehicle which includes bidirectional hydraulic motors. Two front hydraulic motors are in parallel as are two rear hydraulic motors. One of the front hydraulic motors is in series with the rear hydraulic motor on the same side of the vehicle. The other front

A drive system for a hydraulically driven vehicle which includes bidirectional hydraulic motors. Two front hydraulic motors are in parallel as are two rear hydraulic motors. One of the front hydraulic motors is in series with the rear hydraulic motor on the same side of the vehicle. The other front hydraulic motors is in series with the rear hydraulic motor in the other side of the vehicle. The rear hydraulic motors include mechanical brakes in combination. The front hydraulic motors are mounted as part of the spindles which pivot about king pins.

대표청구항 ▼

[ What is claimed is:] [1.] A drive system for a utility vehicle comprising a first hydraulic motor, a second hydraulic motor, a third hydraulic motor and a fourth hydraulic motor; a hydraulic pump; control means for directing pressurized hydraulic fluid to said first and second hydraulic motors or

[ What is claimed is:] [1.] A drive system for a utility vehicle comprising a first hydraulic motor, a second hydraulic motor, a third hydraulic motor and a fourth hydraulic motor; a hydraulic pump; control means for directing pressurized hydraulic fluid to said first and second hydraulic motors or to said third an fourth hydraulic motors; said first and second hydraulic motors being in parallel or said third and fourth hydraulic motors being in parallel; and, said first and third hydraulic motors being in series and said second and fourth hydraulic motors being in series.