汽油机

The mixture formation process of the direct injection engine is numerically analyzed. The model is then validated by comparing the simulation results with the results obtained by schlieren experiment.

首先利用数值解析了缸内电控直喷汽油机的混合气形成过程，并且与光学纹影实验结果比较，验证了解析方法的可行性。

The experimental results showed that the method is an effective way to improving the performance of stoichiometric engines.

试验结果表明，采用该方法来改善化学计量比汽油机的性能是行之有效的。

The results show that the engine has a weak swirl, and its tumble is stronger.

试验结果表明，465汽油机的涡流较弱，滚流较强。

The values of stiffness and damping of hydraulic tappet are used in the two masses dynamic model.The results of calculation and measurement are identical fundamentally.

将测得的刚度值与阻尼系数值带入作者所建立的BN489Q汽油机液压挺柱配气机构二质量动力学模型中，计算结果与实测结果基本一致。

For the hydraulic tappet valve train of BN489Q petrol engine, according to the need of analyzing and researching, dynamic analysis model is established by means of two mass method in this paper.

针对BN4 89Q汽油机的液压挺柱配气机构，根据分析研究需要，经假设建立了二质量动力学分析计算模型。

It can used to do emission and performance test of two-stroke engines.

主要用来做两冲程通用汽油机的排放及性能实验。

Firstly, simulation models for small two-stroke Sl engines are developed and discussed.

本文进行了二冲程汽油机的工作过程模拟及其在K100摩托车发动机上的应用研究，主要包括： 1。

The research device of electronic injection system for two-stroke engine was designed.

研制了一套可以适用于二冲程汽油机的电控燃油喷射系统的开发装置。

The research dev ice of electronic injection system for two-stroke engine was designed.

研制了一套可以适用于二冲程汽油机的电控燃油喷射系统的开发装置。

The results show that the gasoline /CNG Bi-fuel vehicle based on a carburetor vehicle must adjust the combustion system, otherwise the advantages of CNG vehicle can't be reached completely, and when it bums gasoline again, maybe cause knocking and more unburnt gas.

在化油器汽油机基础上改造的EQ1092F汽车，发动机的基本参数没有改变，改燃天然气的优越性不能充分的体现出来。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。