• 제목/요약/키워드: 연료여과기

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차량 연료시스템에서의 정전기 축적특성 연구 (A Study on Electrostatic Charging Characteristics in Vehicle Fuel Systems)

  • 서준호;나병철;김진용
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2004년도 춘계학술대회
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    • pp.2157-2162
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    • 2004
  • As the friction between two mated materials generates electrostatic voltage, vehicles especially in the cold climate has been accumulated an electrostatic voltage by the reason of fuel flow in the fuel line, air flows out side of vehicle, etc. In this study, investigations of electrostatic discharge characteristics has been carried out in the fuel systems of gasoline engines depending on the environment temperature. For the experiment, conventional fuel filters(paint coated steel case) and specially made testing equipment are prepared. The experimental results shows, an accumulation speed of electrostatic voltage depends on the environmental temperature and new methods of testing procedures are required compare to SAE standards.

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튜브형 박용 자동역세 연료유 필터 내부의 유동해석 (Flow Analysis of the Tube Type Marine Auto-Backwashing Fuel Oil Filter)

  • 양장식;김봉환;박영범
    • Journal of Advanced Marine Engineering and Technology
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    • 제33권4호
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    • pp.578-587
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    • 2009
  • In this paper, the characteristics of incompressible flow in a tube type marine fuel oil filter have been investigated. Fluent program has been used to obtain the solutions for the problems of three-dimensional, turbulent fuel oil flow in a filtering system. The inlet flow field is assumed to be uniform. The velocity and pressure distributions were obtained using Darcy's law. The increase of inlet velocity for cleaning fuel oil may cause some problems like vibration of the filter element. It was also required to consider the distribution of cleaning velocity because the worst distribution of cleaning velocity may cause the local insufficient cleaning effect and furthermore the effective filtration area can be reduced. The simulated results show that the computer code can be successfully applied for simulation of the complex base oil flow through the porous media. This paper could be applied to the design of auto-backwashing filtering system as design factor.