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A Study on the Performance Characteristic of Common Rail High Pressure Pump

커먼레일 시스템용 고압펌프의 성능 특성에 관한 연구

  • Lee, Choon-Tae (Department of Automotive & Mechanical Engineering, Silla University)
  • 이춘태 (신라대학교 자동차기계공학과)
  • Received : 2013.05.01
  • Accepted : 2013.07.30
  • Published : 2013.12.31

Abstract

Diesel engines have the advantages of good fuel efficiency and low emissions. Therefore, car makers have been developed various kinds of diesel engine management system to clean up emissions while improving fuel efficiency. One of them is the common rail system. In the common rail system, diesel fuel is injected into the combustion chamber at ultra high pressures up to 1,800 bar to ensure more complete combustion for cleaner exhaust gas, and highly precise multiple injection reduces NOx emission, combustion noise and vibration. Generally speaking, common rail system consists of booster pump, high pressure pump, common rail, injectors, control valves, and sensors. The high pressure pump receives low pressure fuel from the booster pump and supply high pressure fuel to injectors through the high pressure common injection rail. Therefore, high pressure pump has an important role in common rail system. In this paper, we have investigated the performance of high pressure pump of common rail system.

Keywords

References

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