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1. 发明授权

US4986609A Load sensing proportioning valve for brake system 失效
标题翻译：用于制动系统的负载感应比例阀
公开(公告)号：US4986609A
公开(公告)日：1991-01-22
申请号：US776447
申请日：1985-09-16
申请人： Joe S. Cole , Neil B. Christopher
发明人： Joe S. Cole , Neil B. Christopher
IPC分类号： B60T8/18 , B60T8/30
CPC分类号： B60T8/306 , B60T8/1862 , B60G2400/51
摘要： 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.
摘要翻译：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。

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