本文介绍了自行研发的四冲程摩托车汽油机用MCEFI电喷系统在发动机怠速工况的匹配研究。
This paper introduces the idling matching test about MCEFI motorcycle electronic fuel injection system for four-stroke engines.
实验表明：通过加装这种切换凸轮型线vvt系统能够有效提高JL 156fmi型摩托车发动机的动力性和燃油经济性。
It has been proved that the JL156FMI motorcycle engine performance could be effectively improved by loading the new type VVT system.
目前，大多数摩托车发动机均采用传统的自然风冷却系统。
At present, most of the motorcycle engines use the traditional natural air cooling systems which have simple structures but unideal cooling effect.
摩托车发动机电感放电点火系统的储能原件是点火线圈。
The energy reserving element of the inductance discharging ignition system of motorcycle engine is the ignition coil.
混合动力摩托车系统动力由使用LPG燃料的发动机和轮毂式直流无刷电动机提供，本文主要论述摩托车的电驱动设计部分。
The drive power of the hybrid motorcycle consist of engine using LPG fuel and wheel-style brushless DC motor, however here only the electric drive system is introduced in detail.
介绍了为降低排气噪声而改善发动机排气系统设计的方法和摩托车使用过程中应采取的措施。
The paper also describes the improved design method of motorcycle engine exhaust system which reduces the exhaust noise and the measures the motorcycle should take during its operation.
但是摩托车造成的环境污染也不容忽视。为了满足越来越严格的排放法规要求，发动机管理系统(ems)将更多的取代化油器系统应用于摩托车中。
In order to pass more and more stringent emission regulation, Engine Management system (EMS) will more and more replace carburetor system to be used in motorcycles.
应用虚拟样机技术，首先建立摩托车虚拟样机设计系统的结构，对摩托车车架的动态特性、发动机的惯性激振力进行了分析。
Using the technique of virtual prototype, it sets up the model of motorcycle dynamic design, establishes the system framework of motorcycle virtual prototype.
强制风冷系统是坐式摩托车的重要组成部分，它起着散热冷却、保证发动机温度正常的作用。
The forced air cooling is an important component of motorcycle, playing a key role in radiating heat, cooling and as well as keeping the normal temperature of engine.
本文采用加装排气调谐腔的方法，拓宽了摩托车用二冲程汽油机排气系统的调谐转速范围，有效地改善了发动机在中低速区的性能。
By means of the tuning chamber, the tuning speed range of exhaust system is widened. Thus, the two-stroke petrol engine performance at the middle-low speed range can be improved.
本文采用加装排气调谐腔的方法，拓宽了摩托车用二冲程汽油机排气系统的调谐转速范围，有效地改善了发动机在中低速区的性能。
By means of the tuning chamber, the tuning speed range of exhaust system is widened. Thus, the two-stroke petrol engine performance at the middle-low speed range can be improved.
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