Impact Test with Hard Ball and Plate in Liquid Fuel (1st Report, Development of Impact Tester and Wear Test in Methanol and Gasoline)

Masao Kinoshita, Kuniaki Dohda, Tetsuhiro Hayakawa, Akinori Saito

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Alcohol is considered one of the effective alternative fuels, with the intention of reducing air pollution and ensuring a stable energy supply. It is known that valve surfaces in fuel injectors are worn for methanol fueled engines. It is important to make the wear mechanism clear in methanol for the practical use of methanol fuel vehicles. In this study, to simulate the wear phenomena on injector valves, a steel bearing ball was collided repeatedly with a flat hard plate in some liquid fuels. Electric resistance between the ball and the plate, which is corresponded to metallic contact rate, and collision load were measured. Undergoing the impact, squeeze film was formed, and whose characteristic was investgated by examining the relation between the collision load and the metallic contact rate. It revealed that the viscocity of methanol is so low under the high pressure that the squeeze film breakes down easily and the wear of materials are remarkable in methanol.

Original languageEnglish (US)
Pages (from-to)669-675
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume64
Issue number618
DOIs
StatePublished - 1998

Keywords

  • Ethanol
  • Gasoline
  • Impact Load
  • Liquid Fuel
  • Lubrication
  • Methanol
  • Squeeze film
  • Tribology
  • Wear

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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