To provide a wheeled construction machine with a plurality of travel hydraulic motors, using a relatively simple hydraulic circuit for preventing the degradation of working performance and fuel economy by independently supplying pressure oil from the same hydraulic pressure source to the plurality of travel hydraulic motors.
The wheeled construction machine comprises at least one right side driven wheel and at least one left side driven wheel, at least two travel hydraulic motors for driving the driven wheels, respectively, and at least two travel flow control valves for controlling the flow amount of pressure oil to the travel hydraulic motors, respectively. The travel flow control valves have pressure compensation functions for independently supplying the pressure oil to at least two travel hydraulic motors.
Ichiro Suzuki
Hirohiro Ichimura
Kazunori Satake