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    • 2. 发明授权
    • Hydraulic brake system with a priming pump for motor vehicles
    • 液压制动系统,用于机动车辆的起动泵
    • US6149250A
    • 2000-11-21
    • US29382
    • 1998-05-19
    • Helmut SteffesGottfried DehioPeter Volz
    • Helmut SteffesGottfried DehioPeter Volz
    • B60T8/24B60T8/48B60W30/00B60T8/40B60T8/42
    • B60T8/4881Y10S303/90
    • To prevent difficulties in a brake system which is appropriate for automatic braking operations when the viscosity of the pressure fluid is high at low temperatures, a precharging pump for the pressure fluid supply during automatic braking is located so that it aspirates pressure fluid from the supply reservoir and delivers it into the brake line at a junction point as far from the master cylinder as possible. This junction point should be as close as possible to the suction side of the return pump. The large distance between the master cylinder and the point where the pressure line opens into the brake line makes it unnecessary to provide additional throttle elements in the brake line in order to reliably prevent pressure fluid from discharging into the supply reservoir. Only when the change-over valve on the suction side of the return pump is closed after an automatic braking operation has ended will it be necessary to reduce the residual pressure because the precharging pump continues running. This reduction in residual pressure takes place automatically in the brake system of the present invention because the pressure fluid connection to the master cylinder and, thus, to the supply reservoir is open.
    • PCT No.PCT / EP96 / 03571 Sec。 371日期1998年5月19日 102(e)日期1998年5月19日PCT提交1996年8月13日PCT公布。 公开号WO97 / 09213 日期1997年3月13日为了防止在低温时压力流体的粘度高的情况下适用于自动制动操作的制动系统的困难,在自动制动期间用于压力流体供给的预充水泵定位成使其吸入压力 来自供应储存器的流体并且在尽可能远离主缸的连接点处将其输送到制动管线中。 该连接点应尽可能靠近回流泵的吸入侧。 主缸与压力线通向制动管路的距离之间的距离很大,不需要在制动管路中提供额外的节流元件,以便可靠地防止压力流体进入供水容器。 只有在自动制动操作结束后,在回流泵的吸入侧的换向阀关闭的情况下,由于预充电泵继续运转,所以必须减少剩余压力。 在本发明的制动系统中,残余压力的这种降低是自动发生的,这是由于压力流体连接到主缸,因此连接到供给储存器是打开的。