• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>EAEC European automotive congress >DUAL PLENUM CHAMBER VARIABLE INTAKE SYSTEM TO IMPROVE A FOUR CYLINDER SI AUTOMOTIVE ENGINE TORQUE
【24h】

DUAL PLENUM CHAMBER VARIABLE INTAKE SYSTEM TO IMPROVE A FOUR CYLINDER SI AUTOMOTIVE ENGINE TORQUE

机译：双压力腔室可变进气系统改进四缸Si汽车发动机扭矩

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An independent study of a new design of the air intake system for a four-cylinder automobile engine is described. In multi-cylinder engines that share the same intake plenum chamber, interference between cylinders have a relevant influence in engine performance. One cylinder can be affected in a positive or negative way by the intake pressure wave originated in other cylinders. This paper investigates a 4L SI engine intake system that joints or separates the cylinders intake primary pipes to improve engine performance. The prototype intake system developed for this study has two plenum chambers, each connecting two cylinders. The two plenum chambers are kept separated in the engine speed ranges where cylinders interference hinders performance, and are interconnected when that interference is advantageous. Simulation and experimental results will be presented, compared and discussed, leading to a better understanding of the interference processes and torque improvement. The active control of interferences between cylinders has not been much explored in intake air processes studies in four cylinders layout (1-3). This work is a contribution to the knowledge on that area. The result of this study is a low cost intake system to improve engine performance in low/medium engine speeds, which can be associated with other geometry variation systems to improve overall engine performance. A 6.3% (experimental) and 6.7% (simulation) of torque improvement @ 3000 rpm have been reached in first stage of development. Further optimization using simulation tools have led to torque improvements of more than 10% in medium and high engine speeds.
机译：描述了对四缸汽车发动机的进气系统的新设计的独立研究。在共享相同进气池室的多缸发动机中，汽缸之间的干扰在发动机性能方面具有相关影响。通过在其他汽缸中起始的进气波可能受到正面或负面的影响。本文调查了一个4L SI发动机进气系统，可接头或分离气缸进气机，提高发动机性能。为本研究开发的原型进气系统具有两个通风腔室，每个空间腔室连接两个气缸。两个增压室在发动机速度范围内保持分离，其中汽缸干扰阻碍性能，并且在干扰是有利的时互连。仿真和实验结果将展示，比较和讨论，从而更好地了解干扰过程和扭矩改善。在四个气缸布局（1-3）中的进气过程中的进气过程中，气缸之间的干扰的主动控制并未探索。这项工作是对该地区知识的贡献。该研究的结果是一种低成本的进气系统，可以提高低/中式发动机速度的发动机性能，这可以与其他几何变异系统相关联，以提高整体发动机性能。在第一阶段，已经达到了6.3％（实验）和6.7％（模拟）扭矩改善@ 3000rpm。使用仿真工具的进一步优化导致中等和高发动机速度超过10％的扭矩提高。

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