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    • 3. 发明授权
    • Inline proportioning valve for brake systems
    • 用于制动系统的直列比例阀
    • US4893878A
    • 1990-01-16
    • US249682
    • 1988-09-27
    • Joe S. ColeJack D. Hutcheson
    • Joe S. ColeJack D. Hutcheson
    • B60T8/26B60T11/34
    • B60T11/34B60T8/265
    • A valve for use in the brake system of an automobile vehicle and more specifically to a proportioning valve located between the master cylinder and the wheel cylinders in a hydraulic braking system. The valve is constructed with a one-piece housing screw threaded directly into a port on the master cylinder and provided with an outlet port at the opposite end of the housing. The exterior of the housing includes a groove receiving an O-ring which overlies a radially extending vent passageway communicating with the interior chamber within the housing. A spring biased piston is positioned in the chamber together with a removable insert and poppet associated with a passage through the piston with these components retained in place by retaining ring structures, springs and the like and sealed by O-ring seals. The construction of the housing and piston enables increased expansion volume which provides for an increased pressure drop downstream of the valve when the pressure is released upstream of the valve. The one-piece housing and insert enables the housing to be machined from the poppet end thereby providing ease of manufacture, greater accuracy, ease of assembly and reduction in costs of machining time and materials.
    • 一种用于汽车车辆的制动系统的阀,更具体地涉及一种位于主缸和轮缸之间的比例阀,其在液压制动系统中。 该阀由一体式的螺钉构成,直接螺纹连接在主缸上的一个端口上,并在外壳的另一端设有一个出口。 壳体的外部包括容纳O形环的凹槽,该凹槽覆盖与壳体内的内部腔室连通的径向延伸的通气通道。 弹簧偏置的活塞与可移除的插入件和提升阀一起定位在腔室中,该可移除的插入件和提升阀与通过活塞的通道相关联,这些部件通过保持环形结构,弹簧等保持在适当位置并且被O形环密封件密封。 壳体和活塞的结构使得能够增加膨胀体积,当压力释放到阀的上游时,其提供了阀门下游压力的增加。 一体式外壳和插入件使得壳体能够从提升端进行加工,从而提供易于制造,更高的精度,易于组装和降低加工时间和材料的成本。
    • 6. 发明授权
    • Load sensing proportioning valve for brake system
    • 用于制动系统的负载感应比例阀
    • US4986609A
    • 1991-01-22
    • US776447
    • 1985-09-16
    • Joe S. ColeNeil B. Christopher
    • Joe S. ColeNeil B. Christopher
    • B60T8/18B60T8/30
    • B60T8/306B60T8/1862B60G2400/51
    • A load sensing proportioning valve system for the hydraulic brake system of passenger cars and the like for varying the amount of brake fluid pressure and thus the braking torque at the rear brakes of a passenger car. The system includes a load sensor oriented between a suspension component, such as a supporting spring, and the vehicle frame or body and includes a cavity for incompressible fluid in which variation in load will vary the volume of the cavity for providing increased pressure and volumeric flow of an incompressible fluid from the cavity to a proportioning valve incorporated into the hydraulic brake lines extending from the master cylinder to the rear brakes of a passenger car for regulating the proprotioning valve to vary the braking pressure and thus braking torque to the rear wheels to reduce or eliminate premature rear wheel locking when applying brakes of a lightly loaded vehicle and to maintain adequate braking force for the same vehicle when heavily loaded. A flexible line interconnects the load sensor and the proportioning valve to compensate for relative movement between the vehicle frame and suspension system and the proportioning valve includes an actuator in the form of a actuating piston engageable with the proportioning piston in the proportioning valve to regulate the movement of the proportioning piston and thus regulate the proportioning valve in response to variations in load applied to the rear suspension components of the vehicle.
    • 一种用于乘用车等的液压制动系统的负载感测比例阀系统,用于改变制动液压力的量,从而改变乘用车的后制动器的制动力矩。 该系统包括定向在悬架部件(例如支撑弹簧)和车辆框架或主体之间的负载传感器,并且包括用于不可压缩流体的空腔,其中负载变化将改变空腔的体积以提供增加的压力和计数流量 一个不可压缩的流体从空腔到一个比例阀结合到液压制动管路中,该液压制动管线从主缸延伸到乘用车的后制动器,用于调节推进阀以改变制动压力,从而制动转向后轮的转矩,以减少 或者在施加轻载车辆的制动器时消除过早的后轮锁定,并在重载时为同一车辆保持足够的制动力。 柔性线将负载传感器和比例阀互连,以补偿车架和悬架系统之间的相对运动,并且配比阀包括致动活塞形式的致动器,该致动器可与比例阀中的配比活塞接合,以调节运动 并因此响应于施加到车辆的后悬架部件的负载变化而调节配比阀。