柴油机未来发展的两种趋势

中文字数:2315,中文页数:3  英文字数:1614页数:4

One, Li Si especially standpoint in the graduate school(avl) all say
High-speed diesel engine always toward is economize fuel, high credibility and high durable, low production cost and low row to annoy a polluting direction development.These requests are resided to to the company with vehicle and other heavy type vehicle, economy and credibility first, therefore mostly adopt to high-efficiencily keep a spray type diesel engine.Mainly adopt Wo to flow a room type and prepare Ran type etc. to the passenger car and the other light vehicle-use diesel engine not and directly jet type diesel engine.But obtain for the light car better because of the fuel crisis fuel economy, also helped the high speed to keep the development of spray type diesel engine as a result.
The improvement enters a spirit way design, exaltation air current velocity and make use of effective Wo to flow an exaltation capacity efficiency;

一、李斯特研究所(avl)观点概述     高速柴油机一直朝着为节约燃油、高可靠性和高耐久性、低生产成本及低排气污染的方向发展。这些要求对于商用车辆和其它重型车辆，经济性和可靠性居于首位，因此大多采用高效率的直喷式柴油机。对于客车和其它轻型车用的柴油机主要采用涡流室式和预燃式等非直接喷射式柴油机。但由于燃料危机，为轻型车取得更好的燃油经济性，结果也促进了高速直喷式柴油机的发展。改进进气道设计，提高气体流速和利用有效涡流提高容积效率；改善燃油与空气混合的新型燃烧室;改进喷嘴设计，使其更好地与燃烧室匹配；通过涡轮增压，利用排气能量；提高涡轮增压效率，特别是改进后弯曲叶轮压缩机，使柴油机效率和比功率提高

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