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    • 65. 发明授权
    • Brake fluid pressure control apparatus
    • 制动液压力控制装置
    • US5335982A
    • 1994-08-09
    • US40491
    • 1993-03-31
    • Hiromi AndoKunihiro MatsunagaKenji SanoSatoru Suga
    • Hiromi AndoKunihiro MatsunagaKenji SanoSatoru Suga
    • B60T8/34B60T8/40B60T8/42B60T8/50B60T13/18
    • B60T8/4054B60T8/341B60T8/4291B60T8/5037Y10S303/90
    • The present invention relates to a brake fluid pressure control apparatus in which a casing contains a pump communication port separately from a master cylinder communication port. A spool is also provided which limits the communication between the pump communication port and the master cylinder communication port in a manner such that the discharge pressure from the pump is not added directly to the master cylinder. Additionally, in the intake and discharge sides of the pump, a bypass channel is provided. In this bypass channel, a relief valve is provided which allows the escape of pressure force to the intake side of the pump in the case when the pressure force between the discharge side of the pump and the flow control valve increases to a high pressure. Furthermore, because the brake fluid is normally designed to be discharged from the pump to the flow control valve at approximately a fixed flow rate by means of the relief valve, there is no return of brake fluid to the master cylinder via the flow control valve, and stroke fluctuations of the master cylinder can be eliminated. Additionally, the necessity for providing an orifice between a pump communication port and the master cylinder communication port disappears.
    • 制动液压控制装置技术领域本发明涉及一种制动液压控制装置,其中壳体包含与主缸连通口分开的泵连通口。 还提供了一种阀芯,其以使得来自泵的排出压力不直接添加到主缸的方式限制泵通信端口和主缸连通端口之间的连通。 此外,在泵的吸入侧和排出侧设置有旁通通道。 在该旁路通道中,设置有安全阀,当在泵的排出侧和流量控制阀之间的压力增加到高压的情况下,能够将压力释放到泵的吸入侧。 此外,由于制动液通常被设计为通过安全阀以大致固定的流量从泵排出到流量控制阀,所以不会通过流量控制阀将制动流体返回到主缸, 可以消除主缸的冲程波动。 此外,在泵通信端口和主缸通信端口之间提供孔口的必要性消失。