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Effects of fuel rail design and fuel injector durability on the starting performance of a liquid LPG fuelled PFI engine.

机译:燃料导轨设计和喷油器耐用性对液化石油气为燃料的PFI发动机的启动性能的影响。

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摘要

Two important issues for liquid LPG or propane PFI engines were shed unacceptable HC emissions during cold starts and long hot start times. The poor cold start performance was linked to deposits forming within the fuel injectors and the long hot start times were due to the vapourization of the fuel within the fuel rail during hot soak and hot start. Solutions for both of these problems were developed.; To determine the effects of fuel composition on the formation of deposits, 5 sets of fuel injectors were mileage-accumulated on road for 6400 km with 40 hot soaks using identical vehicles operating with fuels of different compositions or different injector designs.; Each set of mileage-accumulated injectors was installed in a test vehicle and standard FTP emission tests were performed on a vehicle chassis dynamometer using a standard fuel. (Abstract shortened by UMI.)
机译:液态LPG或丙烷PFI发动机的两个重要问题是在冷启动和长的热启动时间期间散发了不可接受的HC排放。冷启动性能差与喷油嘴内形成的沉积物有关,并且热启动时间长是由于在热浸和热启动过程中燃料导轨内的燃料汽化。开发了针对这两个问题的解决方案。为了确定燃料成分对沉积物形成的影响,使用相同的车辆使用不同成分或不同喷油嘴设计的相同车辆,在40个热浸的情况下,在5400公里的道路上累积了6400 km的行驶里程。将每组里程累积的喷油器安装在测试车辆上,并使用标准燃料在车辆底盘测功机上执行标准FTP排放测试。 (摘要由UMI缩短。)

著录项

  • 作者

    Hoag, Matthew Warner.;

  • 作者单位

    University of Windsor (Canada).;

  • 授予单位 University of Windsor (Canada).;
  • 学科 Engineering Mechanical.; Energy.
  • 学位 M.A.Sc.
  • 年度 2001
  • 页码 288 p.
  • 总页数 288
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;能源与动力工程;
  • 关键词

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