压缩比和提前角对柴油机低温启动性影响的试验研究

来源 :中国内燃机学会2012年学术年会暨测试技术分会、油品与清洁燃料分会和吉林省内燃机学会联合学术年会 | 被引量 : 0次 | 上传用户:visualstudio2003
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
经过理论分析在相同柴油机的结构参数下柴油机的起动可靠性随压缩比的增大而可靠性提高,通过试验证在相同柴油机的结构参数和合理的压缩比范围内柴油机的起动可靠性随压缩比的增大而可靠性提高;拖动转速随压缩比的升高而降低;低温启动需要合理的供油提前角,不可过大也不可过小.从以往的理论和经验可知柴油机的起动可靠性会随拖动转速的升高而升高,所以压缩比的增大在合理范围内才会提高启动可靠性,否者会造成降低转速而降低启动可靠性.
其他文献
A 3-tier manufacturing execution system based on the B/S architecture is proposed, which can be applied to the manufacturing management of glass industry.The requirement analysis and modeling design f
County economy is not only the basic layer and unit of our national economy but also the "connection" of rural and urban economy.Postal Savings Bank of China boasts 36,000 branches of which two thirds
本文以深圳市为例,在流程管理理论框架中,从制度供给角度,分析社区社会组织的登记注册入口管理制度、日常监督管理制度和扶持培育管理制度各自面临的深层次难题、解决的途径.认为,不论是降低条件还是登记备案双轨制,都不足以解决社区社会组织发展受阻的问题,需要更为彻底的分类管理;监管制度过场化执行,导致日常监督虚化,原因在于管理机构编制受限与工作复杂的矛盾,解决方式在于社会化监督制度的供给;政府扶持培育制度存
The development level of tertiary sector of industry serves as a hallmark of a country or an areas level of socialization of production and the level of the whole market economic development.The terti
Since 2010 there has emerged a shortage of migrant workers in Yangtze River delta, Pearl River delta and other interior areas in China.Meanwhile, strong labor demands and high job vacancies did not re
Minerals management involves many problems.The aim of this article is to introduce the differetiation of resources, assets, capitals in the minerals management, and to study the key issues of a manage
The performance appraisal of science and technology achievements transformation and knowledge management, is important link to imply knowledge management of science and technology achievements transfo
This paper expounds the practical significance and importance of personal information protection.Information security is challenged by prosperous science and technology, and human dignity needs to be
本文在已有研究基础上,结合专家咨询和顾客访谈,建立了顾客满意度评价指标体系,通过对北京卜蜂莲花超市顾客满意度测评分析发现,顾客对该超市整体表示满意,但在商品价格、生鲜产品质量、知名品牌种类等几方面还有待进一步加强.文中对超市总体满意度测评采用了直接调查和指标综合评价两种方式,测评结果一致.说明本文满意度测评指标体系选取以及指标权重的确定科学合理,测评结果真实可靠.
本文根据企业集团的关联交易特征,在建立企业集团信用风险的突变评价指标体系的基础上,采用改进的突变评价法,基于关联交易在企业集团信用风险突变效应中的作用进行分析.实证结果表明,关联交易对企业集团信用风险的突变效应有显著的影响.