| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pressurizing type reservoir connected to a hydraulic circuit having a normal operated circuit and an emergency circuit, capable of being miniaturized and reduced in weight and improving maintainability. SOLUTION: In a casing 2 of the pressurizing type reservoir 1, a tank chamber 10 confined by a movable separator 7 and an end face plate 8 is provided. The tank chamber 10 is pressurized in accordance with the oil pressure introduced from an oil pressure introducing hole 14 through the separator 7. The tank chamber 10 is communicated with the emergency hydraulic circuit through a normally opened port 15, and is communicated with the normally operated circuit through a valve 20. Furthermore, when a failure such as hydraulic oil leak occurs in the normally operated hydraulic circuit, and the hydraulic oil is leaking from the tank chamber 10, a sub-piston 11 extended from the movable separator 7 moved a distance equivalent to the oil leak, abuts on a plate 22B of the valve 20 to close the valve 20, and thus to interrupt the connection between the tank chamber 10 and the normally operated hydraulic circuit.</p> |
