分析了配气正时对可变进气系统充气效率的影响。
Influence of valve timing on air intake efficiency of the variable air intake system is analyzed.
压力损失使发动机的排气背压升高，引起充气效率下降；
The pressure loss caused the increase in exhaust back pressure, leading to the decrease in charge efficiency.
压力损失使发动机的排气背压升高 ，引起充气效率下降 ；
The pressure loss caused the increase in exhaust back pressure, leading tot…
介绍了可变进气道长度、可变气门升程及可变气门定时等提高充气效率的先进技术。
It introduces some advanced technologies which increase the charging efficiency, such as the variable length of the intake duct, the variable valve stroke, the variable valve timing and so on.
云南地处高原，发动机充气效率下降，而且液化石油气装置与发动机不匹配，缺乏必要的高原调整技术方案。
Yunnan locate in plateau, engine inflate efficiency drop, liquefied petroleum gas device and engine mismatch, lack the essential plateau and adjust the technological scheme.
本文论述的是根据台架试验及模拟计算结果得出的多缸发动机进气系统内压力波动与充气效率-转速特性的关系。
Presented in this paper is the relationship between intake pressure wave actions and the general volumetric efficiency speed characteristics of multi cylinder engines.
在大气状态是否发生变化两种状态下，对内燃机的进气量与充气效率间的关系进行了分析，并对所得出的结论进行了合理的解释。
The relationship of air input and Charging Efficiency is analyzed whether air condition is changed or not, and reasonable account of the result is given.
合理的利用进、排气管中的压力波，不仅能使更多的废气排出缸外，而且还可以提高发动机的充气效率，使尽可能多的新鲜工质充入。
The utilization of the pressure wave in the intake pipe and exhaust pipe which not only make more exhaust gas out of the cylinder but also improve the charge efficiency and make more fresh gas.
由于较低的充气效率，发动机使用LPG燃料成功起动时的初始节气门开度及能够稳定在怠速转速下的节气门开度比使用汽油燃料的大。
Because of the lower volumetric efficiency, the initial throttle openings for the start and idling of the LPG engine are larger than those of the gasoline engine.
顶替效率高。介绍了国外常见的几种深水固井水泥浆技术，包括快凝石膏水泥浆体系、PSD水泥浆技术、高铝水泥、充气水泥浆技术和其他水泥浆技术。
The several conventional cementing technologies for deep sea abroad were reviewed which included rapid setting gypsum slurry, PSD slurry, high alumina slurry, aerated slurry and so on.
本实用新型涉及一种空气压缩机，使之提高充气或抽气效率。
The utility model relates to an air compressor, which is used for improving air aerating efficiency or air pumping efficiency.
该方法的原理是利用充气过程中的准平衡过程来分析减压阀的静态特性，它的主要优点是测量效率高、耗气量少、精度较高。
The principle of the measurement method is to make use of the quasi-equilibrium section during one charge to analyze its static characteristics of the regulator.
该方法的原理是利用充气过程中的准平衡过程来分析减压阀的静态特性，它的主要优点是测量效率高、耗气量少、精度较高。
The principle of the measurement method is to make use of the quasi-equilibrium section during one charge to analyze its static characteristics of the regulator.
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