Research of Rail Pressure Characteristics of Common Rail Fuel System

Tao Qiu; Jing Peng; Cong Wei Yu; Yan Lei; Xu Chu Li

doi:10.4028/www.scientific.net/AMR.588-589.117

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 588-589Research of Rail Pressure Characteristics of...

Research of Rail Pressure Characteristics of Common Rail Fuel System

Abstract:

The control of the rail pressure is quite important for a common rail (CR) fuel system since the precise rail pressure control is the basis of optimization for many controlling parameters for CR fuel system, and has a great impact on engine power and emissions. This paper presents the experimental investigation of rail pressure characteristics of a CR fuel system. The rail pressure was tested in varied operation conditions with different boundaries and control parameters. The transient rail pressure characteristics were acquired. Furthermore, the pressure fluctuation was analyzed by means of frequency-domain method. This research shows that the pressure fluctuation in the fuel rail is induced by fuel pump and injectors but not the flow measurement unit.

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Periodical:

Advanced Materials Research (Volumes 588-589)

Pages:

117-120

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.588-589.117

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Online since:

November 2012

Authors:

Tao Qiu, Jing Peng, Cong Wei Yu, Yan Lei, Xu Chu Li

Keywords:

Common Rail Fuel System, Diesel Engine, Frequency, Pressure Fluctuation

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