| 摘要 |
A vehicle hydraulic system having a power steering gear and a control valve for the steering gear connected in series flow relationship between a pump discharge port and a fluid reservoir. A brake system having first valve means interconnected in the hydraulic return line downstream of the control valve between the control valve outlet and the reservoir for controlling communication to a brake actuating device which includes a piston slidably received in a bore so as to have a brake release position and a brake applied position in the bore and being urged to its brake release position by a predetermined back pressure supply and to its brake applied position by spring means which may be augmented by the predetermined pressure. A second valve means is located in the return line downstream of the control valve outlet port for establishing the predetermined back pressure supply.
|
