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涡流和流量系数是影响柴油机经济性与排放特性的关键参数,在柴油机设计和改进过程中需要对气道的此两个参数进行测量和评价。本文在原气道试验台基础上,设计了一套自动化程度较高的气道稳态试验台,可以对气门升程和试验压力进行自动调节,适用于生产线上使用。
Eddy current and flow coefficient are the key parameters that affect the economy and emission characteristics of diesel engine. These two parameters of the airway need to be measured and evaluated during the design and improvement of diesel engine. Based on the original airway test bench, this paper designs a set of highly automated airway steady test bench, which can automatically adjust the valve lift and test pressure and is suitable for the production line.