저온 유동성 향상을 위한 히터타입 C/R 연료필터 성능평가 기술개발 = Development of Evaluation Technology for Fluidity Improvement of Cold Fuel in Common Rail Fuel Filter

다국어 초록 (Multilingual Abstract)

Diesel fuel contains several types of wax and paraffin components to improve combustio capability in pressured combustion chambers. These kind of components are easily solidifies at low fuel temperature and blocking fuel supply to the high pressure fuel pump according to the filter element filling up. In case of high-pressure direct injected engines (i.e., HSDI (Hig Speed Direct-Injection)), fuel blocking may cause serious damage of high pressure pump because of the fuel pump is lubricated by fuel itself. The clearance between plunger and barrel is very small and dry contact of this clements occur fuel pump failure. This study focuses o evaluation technologies for heating element type diesel fuel filters that can improves fuel flow at low temperature. Flow capability, power consumptions and pressure drop has been estimated in a specially made fuel delivery testing system.

목차 (Table of Contents)

• ABSTRACT
  
• 1.서론
  
• 2.HEATING ELEMENT TYPE FUEL FILTER 개요
  
• 3.시작품 제작
  
• 4.저온유동 실험 장치 및 실험 방법
  
• 5.저온유동 실험결과
  
• 6.FIELD상 중고품 분석
  
• 7.결론