The effect of stabilizing pressure of a stable pressure box with damping line of the air flow is studied in order to measure the pulsate flow ability of air at the intake and exhaust pipes of engine.
为了测量发动机进、排气管内气流的脉动流动特性，对自行设计的对气流起稳压作用的阻尼稳压箱进行了研究。
2
The maximum resistance allowances of the intake system and air filter are gained for the D9-220 engine. This provides a basis for the intakeline design and the air filter selection of the engine.