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引言所有机车车辆空气制动系统都有一定程度的漏泄,主要发生在管路接头、阀座、风表和密封处,以及软管连接器等部位。过量的漏泄可对列车的可控性和制动性能产生有害的影响。按美国铁路协会的规定,制动管漏泄最大允许为5磅/英寸~2/分(0.35千克力/厘米~2)。美国铁路协会还规定了正确确定制动管漏泄量的规则。最近则正在对按5磅/英寸~2/分(0.35千克力/厘米~2)的限度进行列车漏泄试验的合理性重新进行审查。背景在漏泄试验中有许多变化的因素。同一
Introduction All locomotive air braking systems have a certain degree of leakage, mainly in the pipeline joints, seat, wind and seal, and hose connectors and other parts. Excessive leakage can have a detrimental effect on train control and braking performance. According to the American Railroad Association, the maximum allowable brake pipe leakage is 5 lb / in ~ 2 / min (0.35 kgf / cm ~ 2). The American Railroad Association also provides for the correct determination of brake pipe leakage rules. Recently, a review of the rationality of train leakage tests at a rate of 5 pounds per square inch to 2 points per minute (0.35 kgf / cm 2) was under review. Background There are many variables in the leak test. same