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    • 8. 发明申请
    • PNEUMATIC SYSTEM
    • 气动系统
    • WO1989004790A1
    • 1989-06-01
    • PCT/GB1988001010
    • 1988-11-17
    • MARSHALL, Howard, Robert, Philip
    • B62L03/02
    • B62L1/16B60T13/38B62L3/023
    • A pneumatic braking system for a cycle or a wheelchair wherein the braking system is adapted to receive a bottle (12) pre-charged with compressed gas. The system comprises a gas pressure operated cylinder (2, 7) for connection to a brake of a wheel of the cycle or wheelchair and a control means (21, 33) to apply gas pressure to the cylinder or vent gas from the cylinder to apply the brakes. The system also has a pressure regulator (26) to regulate the pressure of gas emerging from the outlet. The source of compressed gas is a pre-charged bottle similar to those used to pressurise a domestic or industrial beer barrel. It can be charged to around 6900 kNm and has been found to give a long-lasting supply of air. The gas pressure acts to release the brakes, and the cylinders have a spring (35, 36) to oppose this action and apply the brake. Thus a ''fail-safe'' mechanism is provided as the brakes are gradually applied when the gas pressure falls.
    • 一种用于循环或轮椅的气动制动系统,其中所述制动系统适于接收预先充满压缩气体的瓶子(12)。 该系统包括用于连接到循环轮椅的轮子的制动器的气体压力操作缸(2,7)和用于将气体压力从气缸施加气体压力或从气缸排出气体的控制装置(21,33) 制动器。 该系统还具有压力调节器(26),以调节从出口排出的气体的压力。 压缩气体的来源是与用于对家用或工业啤酒桶加压的那些类似的预充电瓶。 它可以充电到6900 kNm左右,已经被发现能长时间供应空气。 气体压力用于释放制动器,并且气缸具有与该动作相反的弹簧(35,36)并施加制动器。 因此,当气体压力下降时,制动器逐渐被应用,因此提供了“故障安全”机构。