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    • 4. 发明授权
    • Method of sensing air leaks in tires and tire testing machines
    • 检测轮胎和轮胎试验机中的漏气的方法
    • US06718818B2
    • 2004-04-13
    • US10199547
    • 2002-07-19
    • William Randall DuttJohn Edward FahringerJohn Michael Maloney
    • William Randall DuttJohn Edward FahringerJohn Michael Maloney
    • G01M326
    • G01M17/024G01M3/3218
    • The present invention relates to a method and system for detecting air leaks in tires and in a tire testing machine. Each of the tires is mounted on the tire testing machine; inflated with an air flow from an inflation system to a first pressure; and maintained at the first pressure by continued supply of air from the inflation system into the tire. The flow of the continued supply of air is measured with a calorimetric flow sensor calibrated to output a sensor signal having a full scale value corresponding to an identical model tire mounted on the tire testing machine with no air leaks in the model tire or the testing machine. The flow of the continued supply of air is compared with an averaged flow for previously measured tires mounted on the tire testing machine with no air leaks in the tires or the testing machine. A control signal indicating an air leak is outputted if the sensor signal is 20% to 80% of the full scale value.
    • 本发明涉及一种用于检测轮胎和轮胎试验机中的漏气的方法和系统。 每个轮胎安装在轮胎测试机上; 用从充气系统到第一压力的气流充气; 并通过从充气系统继续供应空气进入轮胎而保持在第一压力。 通过校准的量热流量传感器测量持续供气的流量,以输出具有对应于安装在轮胎测试机上的相同模型轮胎的满量程值的传感器信号,而在模型轮胎或测试机器中没有空气泄漏 。 将持续供气的流量与安装在轮胎试验机上的先前测量的轮胎的平均流量进行比较,轮胎或试验机中没有空气泄漏。 如果传感器信号为满刻度值的20%至80%,则输出指示空气泄漏的控制信号。