本文建立了内燃机换气过程缸内压力模拟计算的数学模型。
The article establishes a math model of cylinder pressure simulation of a diesel engine during gas exchange process.
充量系数是表征换气过程进行完善程度的一个极为重要的参数，是衡量发动机性能的重要指标。
Volumetric efficiency is a very important parameter to test whether the engine has a good process of air exchange, its also an important guide line to scale the engine performance.
配气机构是发动机的换气机构，换气过程：控制气门按时关了，保证气配时充分燃烧混合气和排撂废气。
Valve bodies are engines of ventilators, ventilation process: on time and turn off the control valve to ensure full combustion gas mixed with gas and emissions.
研究试验结果表明，分层扫气可减少换气过程的燃料损失，使燃油消耗率大幅度下降；使混合气空燃比的范围加大。
The result shows that stratified scavenging reduces fuel loss during air exchange greatly lowing the fuel consumption rate and enlarging the air-fuel ratio range.
为研究进气系统结构参数对汽油机换气过程的影响，用有限差分法编制的程序对某3缸汽油机的换气过程进行模拟计算。
In order to find out the effects of inlet system dimensions on the gas exchange quality of gasoline engines, a FDM code was used to simulate the gas exchange process of a 3 - cylinder gasoline engine.
室内喷雾、熏蒸消毒过程，应紧闭门窗，消毒结束后应通风换气。
You should close the door and windows when spaying and fuming and open them to ventilate when finished .
室内喷雾、熏蒸消毒过程，应紧闭门窗，消毒结束后应通风换气。
You should close the door and windows when spaying and fuming and open them to ventilate when finished .
应用推荐