The fracture surface of a failed injection valve nut of diesel engine high pressure oilpump was investigated by visual and SEM.
对断裂的汽车柴油机高压出油阀紧座的宏观、微观断口及显微组织进行了研究。
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The noise of 4110Q diesel engine and its oil pan, flywheel cover, oil pump, valve chamber has been studied by the analysis system of B&K3560 in the normal Semi-anechoic chamber.
Long service life of diesel engines in pump station determines the availability and maintainability of the engine, the pipeline safe operation as well as the realization of oil transport targets.