| 摘要 |
A hydraulically actuated modulating valve actuable to modulate the fluid pressure in a brake system in response to a skid control signal and operable from a source of hydraulic pressure as provided by a power steering pump or the like. A spring holds the modulating valve and a plunger of an expansion chamber in a normal braking position and the hydraulic pressure of the power steering pump is employed to permit movement to a skid control position. The actuator is in a series circuit with the power steering pump and the control valve generates back pressure to move the actuator to its skid control position. A valve carried by the actuator is opened to provide a bypass circuit when the actuator moves to a predetermined position. |
