汽油机

Hard alkane value is a ruggedized index which shows the petrol at the time of burning in the petrol machine.

辛烷值是表示汽油在汽油机中燃烧时的抗震性指标。

For adjusting and optimizing spark advance angle of SI engine and improving power density and fuel economy and reducing exhaust emission, an electronic control ignition system applied to GDI engine was developed in this paper.

为了对火花点火发动机的点火提前角进行调整优化，本文开发了一种适用于直喷汽油机的电控点火系统。

According to the measured pressure data of the four-stroke small utility gasoline engine, the cyclical variations of the maximum pressure, the crank shaft angle at the maximum pressure, the mean indicated pressure and the largest pressure rise rate were analyzed. Meanwhile, the influences of ignition advance angle, load and rotation speed on cyclical variation were also investigated.

根据实测小型通用四冲程汽油机气缸压力，分析了最大爆发压力、最大爆发压力所对应曲轴转角、平均指示压力以及最大压力升高率等参数的循环波动特性，以及点火提前角、负荷和发动机转速对循环波动的影响。

It is needed to design a digital electronic minitype speed governor for Benzine engine, of low price and good performance to meet the ever-amounting requirement by production of the economy, reliab...

为适应生产对动力装置经济性、可靠性和自动化水平的日益提高的要求，对小型汽油机采用电子数字调速进行了研究。

It is needed to design a digital electronic minitype speed governor for Benzine engine, of low price and good performance to meet the ever-amounting requirement by production of the economy, reliability and automatization of power plant.

为适应生产对动力装置经济性、可靠性和自动化水平的日益提高的要求，对小型汽油机采用电子数字调速进行了研究。

Benzine engine, when applied as the power plant for agricultural machinery, generator and so forth, is equipped with speed governor to insure a steady re~ as there is a change of load.

中文摘要：汽油机作为农业机械、发电机组及其它场合的动力装置都装有调速器，以在负载变化的情况下保持转速基本不变。

This design is the main engine will take the step motor actuators provide an idle by-pass inlet channel.

本设计主要是将汽油机的带步进电机的怠速执行器提供一个旁通的进气通道。

It can switch between operating as a petrol engine, with agility and power, to operating as a diesel, with economy and torque.

它可以在汽油机模式和柴油机模式之间切换，结合了汽油机的灵敏和高性能，以及柴油机的经济和高扭力的双重优点。

Therefore, the need for a gasoline engine when to control the spark plug ignition system. This system requires an accurate control of spark plugs and spark discharge energy of the moment, be able to ensure the normal gasoline engine. gasoline engine fuel supply system and ignition system is a high proportion of the gasoline engine fault location.

因此，汽油发动机需要一套控制何时让火花塞工作的点火系统，此系统必须精确控制火花塞放电的时刻和火花能量的大小，才能保证汽油机的工作正常，汽油机的燃料供给系和点火系是汽油机上发生故障比例较高的部位。

The present thesis construct the boundary model on carburettors which is based on themethod of characteristics. The IEM computer program for computing the wave action and ex-change gas process of the gas oline engine is accomplished by using the method of characteristics.

建立用特征线计算的代油器边界模型，利用非等墒特征线理论编制了可计算汽油机进气管内的压力波动及换气过程的计算机程序IEM，并用该程序对BJ492QA汽油机进行了计算，计算与实测的压力波曲线吻合良好，表明了该化油器边界模型及IEM的合理性。

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。