• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.1: Advanced Energy Systems; Advanced Heat Transfer in Engineering Systems; ... >Bore Polishing Wear in Diesel Engine Cylinders
【24h】

Bore Polishing Wear in Diesel Engine Cylinders

机译：柴油机气缸套的孔抛光磨损

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The rate of wear of the cylinder liner is mainly a function of peak cylinder pressure, the depth of penetration of hard carbon particles ingress during abusive running conditions. The problem of wear becomes severe as the blowby past the rings and the oil consumption of an engine increases in diesel engines. In this paper, a methodology is developed to estimate the wear of liner due to bore polishing action. The wear rate is correlated with the product of gaseous load, contact stress, and sliding action of the piston surfaces. Under abnormal conditions, the shear strain due to friction exceeds the plasticity limit of the material, superficial delamination occurs at the liner surfaces. The wear model was validated on large engines running on heavy fuel at 22-bar bmep. The case study results showed that by modifying the piston profile and liner geometry, and bore polishing of the liner surfaces is reduced and the engine oil consumption rate is improved substantially.
机译：气缸套的磨损率主要取决于气缸峰值压力，在恶劣的行驶条件下硬碳颗粒进入的渗透深度。随着漏气通过环，并且柴油机中发动机的油耗增加，磨损问题变得严重。在本文中，开发了一种方法来估计由于孔抛光作用而引起的衬套磨损。磨损率与气体负载，接触应力和活塞表面的滑动作用的乘积相关。在异常情况下，由于摩擦而产生的剪切应变超过了材料的可塑性极限，在内衬表面发生了表面分层。磨损模型在以22 bar bmep的重油运行的大型发动机上得到了验证。案例研究结果表明，通过修改活塞轮廓和衬套几何形状，减少了衬套表面的打孔抛光，并显着提高了发动机机油消耗率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号