| 摘要 |
PURPOSE: A hydraulic unit circuit is provided to drive an alternate solenoid valve when a specific solenoid valve malfunctions. CONSTITUTION: A hydraulic unit circuit(100) comprises a header tank(1) and a first and a second pump(2-1,2-2). The unit circuit comprises a first and a second motor(3-1,3-2) and a main solenoid valve(8). The unit circuit comprises a shuttle valve(10) and a first and a second subsidiary solenoid valve. The unit circuit comprises a first and a second regulator(7-1,7-2). The header tank is a fluid source. The header tank keeps the gasoline. The pump is connected to the header tank. The pump is composed of the first pump and the second pump. The first secondary solenoid valve operates in the first pump operation. The second subsidiary solenoid valve operates in the second pump operation. |
