刘欣,熊淦,胡春明,董亮亮,张巍,乔治彬.四冲程汽油机缸内斜轴涡流研究[J].农业机械学报,2013,44(5):19-24.
Liu Xin,Xiong Gan,Hu Chunming,Dong Liangliang,Zhang Wei,Qiao Zhibin.In-cylinder Inclined Swirl of Four Stroke Gasoline Engine[J].Transactions of the Chinese Society for Agricultural Machinery,2013,44(5):19-24.
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四冲程汽油机缸内斜轴涡流研究   [下载全文]
In-cylinder Inclined Swirl of Four Stroke Gasoline Engine   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2013.05.004
中文关键词:  四冲程汽油机  进气道  斜轴涡流  双特征角  线性回归分析
基金项目:国家高技术研究发展计划(863计划)资助项目(2008AA11A114);天津大学内燃机燃烧学国家重点实验室开放基金资助项目
作者单位
刘欣 天津大学 
熊淦 天津大学 
胡春明 天津大学 
董亮亮 天津大学 
张巍 天津大学 
乔治彬 天津大学 
中文摘要:利用双特征角气道稳流试验台,对一款二气门四冲程单缸试验机的3种不同进气道方案进行了不同测试平面的气流运动试验和分析。结果表明,提高原气道涡流强度来改善燃烧的同时会降低气道的流通能力,但适度提高滚流强度的同时还可以提高流通能力。利用测得的无因次涡流比和滚流比,提出了一个简便的斜轴涡流特征参数计算公式,并通过试验数据给予了有效性证明。另外对特征角α=60°时的无因次涡流比和利用涡流与滚流合成的无因次斜轴涡流比进行了线性回归分析,3种方案数据的相关系数分别是0.96、0.97、0.97,因此,通过稳流气道试验台测取某一特征角度下的无因次涡流比可以评价进气道斜轴涡流的性能。
Liu Xin  Xiong Gan  Hu Chunming  Dong Liangliang  Zhang Wei  Qiao Zhibin
Tianjin University;Tianjin University;Tianjin University;Tianjin University;Tianjin University;Tianjin University
Key Words:Four stroke gasoline engine  Intake port  Inclined swirl  Double eigen angle  Linear regression analysis
Abstract:A double eigen angle steady-state flow rig was used to measure three modified options of intake port on a single cylinder four stroke gasoline engine. The results showed that improving combustion by enhancing swirl might reduce the flow capacity while improving tumble ratio appropriately could also increase the intake flow coefficient. Based on the dimensionless swirl ratio and tumble ratio, a group of simple formulas which were used to calculate the inclined swirl characteristic parameters were proposed, and related experiments were accomplished to prove their effectiveness. Additionally, linear regression analysis was conducted between the dimensionless swirl ratio at the condition characteristic angle α of 60° and the dimensionless inclined swirl ratio synthesized by swirl ratio and tumble ratio, and the correlation coefficient of three options were 0.96, 0.97 and 0.97 respectively. It was concluded that the performance of intake port could be evaluated by the dimensionless swirl ratio at a certain angle α instead of swirl ratio and tumble ratio.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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