Tire pressure signalling device
    71.
    发明授权
    Tire pressure signalling device 失效
    轮胎压力信号装置

    公开(公告)号:US4421052A

    公开(公告)日:1983-12-20

    申请号:US157897

    申请日:1980-06-09

    Applicant: Edward J. Cook

    Inventor: Edward J. Cook

    CPC classification number: B60C23/0403

    Abstract: Devices are disclosed for use in generating an acoustical warning signal in the event of an abnormal pressure in a pneumatic tire. A spring-loaded piston is mounted for reciprocation in a cylindrical chamber along an axis perpendicular to the radius of the tire for substantially eliminating the effects of centrifugal force on the operation of the device. The piston maintains the device closed until such time as the tire pressure drops below a predetermined limit at which point a small sampling of air is released into a whistle which produces a coded acoustical signal detected by an acoustical transducer mounted on the vehicle. The transducer converts the acoustical signal into an electrical signal which is processed and used to actuate an alarm for warning the driver. Cap seals are disclosed which protect the whistle from water dirt, etc.

    Abstract translation: 公开了用于在充气轮胎中发生异常压力的情况下产生声学警告信号的装置。 弹簧加载的活塞被安装用于沿着垂直于轮胎半径的轴线在圆柱形腔室中往复运动,以基本上消除离心力对装置的操作的影响。 活塞保持装置关闭,直到轮胎压力下降到预定极限以下时,空气的小取样被释放到产生由安装在车辆上的声学换能器检测到的编码声信号的口哨。 换能器将声信号转换成电信号,该信号被处理并用于致动用于警告驾驶员的警报。 公开盖帽密封,保护口哨免受水污染等。

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