有台柴油机水泵机组,工作时出水反复无常。油门大时出水反而少,且时有时无,忽大忽小,几乎断流;油门小时出水反而比油门大时多一些,从几乎断流渐浙多起来。真是有点奇怪。于是,我们拆检了底阀、进水胶管和水泵,都没有发现问题,但装机试车抽水时又重复出现上述故障。几经折腾,终于发现进水胶管内壁有块胶片破了,但没完全掉下来,只有当 A diesel engine pump unit, the work of erratic water. Large throttle when the water is less, and sometimes no, suddenly big suddenly small, almost cut off; throttle hours of water but more than the throttle when the more cut off almost from Zhejiang. Really a bit strange. As a result, we demolished the end of the valve, water hose and water pump, did not find the problem, but when the test machine installed pumping repeated the above failure. After several tossing, and finally found a piece of water inside the hose wall film broke, but did not completely fall, only when