The mechanism of fuel saving and emission reduction were discussed in this paper . based on surface chemistry , proper emulsifiers were selected to produce stable emulsified diesel oil , which contains different amount of water . the characters of emulsified fuel such as viscosity , heat value and factors in connect with stability were analyzed 本文以利用乳化油减少柴油机燃油耗和降低排气污染为主要目标，先从理论上分析了乳化油节能和降低排放的机理，然后利用表面化学的知识筛选出适当的表面活性剂，复配出高效的复合型乳化剂并用其配制出不同掺水率的稳定的乳化柴油，对乳化油的物性(粘度、热值等)及影响乳化油稳定性的因素进行了分析。
This noncontact distributor assembly , which deletes mechanical breaker contact , utilizes ic ignition module assembly free of burn out of contact . therefore it has a higher ignition voltage , higher ignition volume , as well as functions of overvoltage protection , low speed & low voltage protection and power cut upon shut down . these functions are of benefit to improvement to the motive performance , economical efficiency and start up ability of engine while reduce waste exhaust 该无触点分电器总成取消了机械断电器触点，采用了集成电路组成的点火模块总成，不存在触点的烧蚀，因此点火电压高，点火能量大，并具有过压保护、低速低压启动、停车断电等多项功能，有利于改善发动机的动力性，经济性和起动性能，减少了排气污染。
Burning dme in the diesel engine can solve the problem that petroleum resources is reducing based on the long - term viewpoint , meanwhile , it can meliorate the emission pollution based on the short - term viewpoint , which develop a realistically feasible approach to solve tow big difficult problems , namely crisis of energy and environmental pollution 在柴油机上燃用二甲醚，从长远来看，可以解决石油资源减少的问题，从近期考虑，则能够改善排气污染，它为解决能源危机和环境污染两大难题开辟了一条现实可行的道路。
