Analysis and Improvement of Cracks in the Pump Body of a Certain Type of Combined Pump
This article aims to address the issue of pump body cracks that occurred during the testing process of a certain type of com-bined fuel injection pump.By establishing a fault tree,the causes were investigated from the design process,raw material composition,casting,machining and assembly,and other aspects.It was ultimately determined that the main causes of the pump body cracks were casting defects in the pump body and machining defects in the screw holes of the pump body.By developing corresponding improvement measures and conducting experimental verification,the occurrence of similar problems was avoided,and it also provided a reference for the analysis and handling of similar problems.
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