| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hydraulic circuit for vehicle capable of operating the actuators of both circuit systems even if drive source is stopped. SOLUTION: A hydraulic circuit for vehicle is provided with a circuit system A connected to a pump 2 operated by a drive source 1, a circuit system B connected to a pump 3, and an emergency pump 12 connected to the upstream of the circuit system A and operated by another drive source 11. Also it is provided with an interconnecting selector valve 18 in the downstream of the circuit system A or in the upstream of the circuit system B. When the drive source 1 is operated, the circuit system A and circuit system B are interconnected to a tank T, respectively, and, when the drive source 1 is stopped, the emergency pump 12 is operated and interconnecting selector valve 18 is changed over so as to interconnect the circuit system A and circuit system B and shut off the circuit system B from the pump 2.</p> |
