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    • 2. 发明授权
    • Anti-lock hydraulic brake system
    • 防液压制动系统
    • US5195810A
    • 1993-03-23
    • US832517
    • 1992-02-07
    • Norbert OcvirkLutz WeiseJames Remfrey
    • Norbert OcvirkLutz WeiseJames Remfrey
    • B60T8/42B60T8/48
    • B60T8/4872B60T8/4291Y10S303/11Y10S303/90
    • An anti-lock hydraulic brake system is described having a bypass line to a pump used to evacuate and pressurize the wheel brakes during antilock control. A pressure control valve in the bypass line regulates the pressure in the pressure line to the master cylinder pressure level. A low pressure accumulator absorbs recirculated fluid flow from the bypass line. A pressure operated valve opens only when a difference in pressure between the master cylinder pressure and the pump outlet pressure line pressure develops. The consequence is that a non-return valve a and pressure operated valve in combination bring about isolation of the master cylinder during antilock control to prevent brake pedal reaction to pump pressure developed during a braking pressure control operation. When the accumulator is fully charged, the bypass line is closed by means of a shut-off valve operated by an accumulator piston so that the pump delivers fluid via the pressure valve (18) back into the master cylinder (1).
    • 描述了一种防抱死液压制动系统,其具有到防抱死控制期间用于抽空和加压车轮制动器的泵的旁路管线。 旁路管路中的压力控制阀将压力管线中的压力调节到主缸压力水平。 低压蓄能器从旁路管道吸收再循环流体。 只有当主缸压力和泵出口压力管路压力之间的压力差产生时,压力操作阀才打开。 结果是,止回阀a和压力操作阀组合在防抱死控制期间实现主缸的隔离,以防止制动踏板反作用于在制动压力控制操作期间产生的压力。 当蓄能器完全充电时,旁路管线通过由蓄能器活塞操作的截止阀关闭,使得泵将流体经由压力阀(18)输送回主缸(1)。