초록 ▼

A first wheel positioned on a first side of a vehicle is driven by a first reversible hydraulic motor. A second wheel positioned on a second side of the vehicle is driven by a second reversible hydraulic motor. A first valve controls the drive direction and speed of operation of the first hydraulic

A first wheel positioned on a first side of a vehicle is driven by a first reversible hydraulic motor. A second wheel positioned on a second side of the vehicle is driven by a second reversible hydraulic motor. A first valve controls the drive direction and speed of operation of the first hydraulic motor. A second valve controls the drive direction and speed of operation of the second hydraulic motor. An actuator shaft is connected with the first and second valves. Linear movement of the actuator shaft along its axis actuates both of the valves in either a forward or a reverse direction. The actuator shaft is also rotatable about its axis. Rotation of the actuator shaft about its axis actuates one of the valves in the forward direction and the other of the valves in the reverse direction.

대표청구항 ▼

A steering and driving system for a vehicle having a first wheel on a first side of the vehicle and a second wheel on a second side of the vehicle, said system comprising: a first reversible hydraulic motor means for driving the first wheel of the vehicle; a second reversible hydraulic motor means f

A steering and driving system for a vehicle having a first wheel on a first side of the vehicle and a second wheel on a second side of the vehicle, said system comprising: a first reversible hydraulic motor means for driving the first wheel of the vehicle; a second reversible hydraulic motor means for driving the second wheel of the vehicle; first valve means for controlling the direction and speed of operation of said first reversible hydraulic motor means; second valve means for controlling the direction and speed of operation of said second reversible hydraulic motor means; an actuator shaft; force transmitting means for moving said actuator shaft along its axis and for rotating said actuator shaft about its axis; and connector means for connecting said actuator shaft with said first and second valve means; said connector means being operable by said actuator shaft to actuate said first and second valve means to vary the operating speed of said first and second reversible hydraulic motor means upon movement of said actuator shaft along its axis during operation of said first and second reversible hydraulic motor means in forward and reverse directions; said connector means being operable by said actuator shaft to actuate said first and second valve means to increase the operating speed of said first reversible hydraulic motor means and decrease the operating speed of said second reversible hydraulic motor means upon rotation of said actuator shaft in a first direction about its axis and to actuate said first and second valve means to decrease the operating speed of said first reversible hydraulic motor means and to increase the operating speed of said second reversible hydraulic motor means upon rotation of said actuator shaft in a second direction about its axis.