1) charge efficiency /cylinder passage cross section
充气效率/入缸截面
2) cylinder efficiency
气缸效率
3) volumetric efficiency
充气效率
1.
Effects of inlet manifold dimensions on volumetric efficiency of engines;
进气管结构参数对柴油机充气效率的影响
2.
Because the intake pipe effect of gas fluctuation can improve volumetric efficiency and the performances of en- gine,the paper employs the AVL BOOST software,based on the original TJ376QE gasoline engine,to optimize the design of the variable intake manifold length.
根据进气管中的脉动效应可提高发动机的充气效率,从而改善发动机的动力性和经济性这一原理,应用AVL BOOST软件,在原TJ376QE汽油机的基础上,对发动机进气歧管长度进行了分两段可调的优化设计,并通过试验验证计算结果,从而确定了可变进气歧管的长度和两个歧管的切换转速。
3.
A new method for determination of the charging and the volumetric efficiency of the individual cylinder in a multi-cylinder internal combustion engine was proposed.
论述了一种基于稳定紊流运动沿通过截面径向的速度分布规律,对多缸内燃机各缸进气歧管内进气充量和充气效率的计算方法。
4) charge efficiency
充气效率
1.
But charge efficiency decreases when back pressure of exhaust increases because of the pressure loss in three-way catalytic converter (TWC).
发动机的动力性和经济性要求有较高的充气效率,而加装三催化转化器后,排气流过其内时所产生的压力损失使发动机的排气背压升高,从而导致充气效率下降。
5) charging efficiency
充气效率
1.
This paper presents the simulation calculation and experimental results of charging efficiency of vehicle rotary engine with compound intake ports,and analyzes the characteristics of the charging efficiency varying with loads and speeds of the engine as well as distribution relationship of mass flow rate between the peripheral and side ports varying with engine speeds.
提出了车用转子发动机复合进气充气效率模拟计算和试验结果,并分析了充气效率随负荷和转速变化的特性,以及周边气口与端面气口进气气流随转速变化的分配关系,为进一步研究这种进气形式的转子发动机的换气过程、气口与进排气管设计提供了有益的结果。
2.
This paper states the gas exchange process of four-stroke gasoline engines, and analyzes a variety of elements that affect the charging efficiency.
本文围绕提高汽油机的进气充量,论述了四冲程汽油机的换气过程,分析了影响充气效率的各种因素,总结提出了改善换气质量、提高充气效率的一系列措施。
6) coefficient for shear lag net section fracture calculation
净截面效率
补充资料:配置效率和生产效率
在经济学上,经济发展的动力,或者说效率的来源,分为两类:一类是配置效率,二是生产效率。所谓配置效率,是指给定资源和技术的条件下,怎么样使资源从边际生产率低的地方流向边际生产率高的地方,从而使得资源和利用更合理、社会总价值达到最大;而生产效率是指如何通过技术进步提高每一种资源的生产率,也就是把社会的生产可行性边界向外移。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条