HYDRAULIC DRIVE APPARATUS

原文（中国語）

This hydraulic drive apparatus supplies a working fluid to each of a travel motor and a loading actuator and includes: a hydraulic pump that discharges the working fluid; a travel system hydraulic circuit that is connected to a first passage branching from a pump passage connected to the hydraulic pump and controls a flow of the working fluid to the travel motor; a loading system hydraulic circuit that is connected to a second passage branching from the pump passage connected to the hydraulic pump and controls a flow of the working fluid to the loading actuator; and a flow rate control valve that is interposed in the second passage and controls an opening degree of the second passage according to a travel-end supply pressure that is a pressure being supplied to the travel motor and a loading-end supply pressure that is a pressure being supplied to the loading actuator.