YC3108柴油机方案设计书必威体育精装版.docVIP

YC3108柴油机总体方案及配气凸轮设计 单号 摘要： 随着我国经济的不断发展，对基础设施建设不断加强投入，对国民经济的拉动成效日益显见，尤其是“汽车下乡政策”扶持力度的加大，对汽车行业的影响是巨大的。目前，农用型汽车作为农民兄弟的致富帮手，已快速进入农村建设的各个领域，进入了普及阶段。同时，随着科技不断进步，柴油机的制造技术的不断成熟，柴油机以它的良好动力性、经济性、以及不断提高的排放，成为配套农用车的首选动力。 2009年，受惠于国家为拉动内需而出台的“汽车下乡政策”，年农用车市场持续火爆，但是，我们也看到，市场基本被4108、4100等4缸机占有，对于农民兄弟提出的动力下移的市场需求，我们的产品链是空白的，我们应该做出适应市场的产品。针对这一块巨大的市场，玉柴机器股份有限公司设计出YC3108系列柴油机，YC3108柴油机总体布置是根据已选定的性能参数、结构参数、主要部件及系统的结构型式、所需配套生产厂的要求，形成对产品的总体概念或构思，经过粗略、模糊到逐渐具体、逐渐明确的设计方案。本文详细介绍了YC3108柴油机的主要技术参数以及总体布置、总体结构、特点；其中凸轮轴设计方面做了重点介绍，包括选材、基本尺寸的计算等。 关键词 ：柴油机，热力学计算，动力学计算，凸轮轴设计 外文翻译 Abstract：With the development of economic.greater efforts devoted to the continued strengthening of infrastructure and inputs, agricultural-type vehicle has gradually stepped into the rural areas in various regions, has entered a rapid development stage. As China enters the 21st century, the accelerated pace of economic development, economic globalization, technological advancements, the diesel engine manufacturing technology improvements, diesel engines to its good power, economy, and rising emissions, becoming an important supporting car Select power. As Chinas Auto countryside policy in 2009.Agricultural diesel engine for the Chinese market, the status quo, in 2009 agricultural vehicle market remained hot, but the market is basically 4105/4102/4100 possession, but the downward momentum of the market demand, agricultural demand for diesel power made new demands, YC3108 it in this When bred for us. YC3108 diesel engine has been selected general layout is based on performance parameters, structural parameters, the major components and system architecture type, the required supporting production plant requirements, and established the overall product concept or ideas, through the rough, fuzzy to become more concrete, and gradually clear-cut design. This paper describes the main technical parameters YC3108 diesel engine and overall layout, the overall structure and characteristics; of these camshafts made to highlight