This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Filtration Requirements and Evaluation Procedure for a Rotary Injection Fuel Pump
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 01, 1997 by SAE International in United States
Annotation ability available
A cooperative research and development program was organized to determine the critical particle size of abrasive debris that will cause significant wear in rotary injection fuel pumps. Various double-cut test dusts ranging from 0-5 to 10-20 μm were evaluated to determine which caused the pumps to fail. With the exception of the 0-5-μm test dust, all other test dust ranges evaluated caused failure in the rotary injection pumps. After preliminary testing, it was agreed that the 4-8-μm test dust would be used for further testing. Analysis revealed that the critical particle size causing significant wear is 6-7 μm. This is a smaller abrasive particle size than reported in previously published literature.
A rotary injection pump evaluation methodology was developed. During actual operation, the fuel injection process creates a shock wave that propagates back up the fuel line to the fuel filter. Using the injection pump as part of the fuel filter evaluation incorporates the vibration and shock wave seen in the field. Limited test data indicate the ability to repeat this methodology. A comparison between a current SAE procedure and the developed procedure reveals drastic differences in the fuel filter efficiency.
CitationBessee, G., Yost, D., Lacey, P., Lilly, K. et al., "Filtration Requirements and Evaluation Procedure for a Rotary Injection Fuel Pump," SAE Technical Paper 972872, 1997, https://doi.org/10.4271/972872.
- Onion, G. “Diesel Fuel Contamination and the Design and Application of Filters and Water Separators,” Filtration and Separation November December 1965
- Bessee, G.B. Kohl, K.B. “Comparison Between Real-Life Dust Samples and Standardized Test Dusts,” SAE Paper No. 940322 , Society of Automotive Engineers (SAE) International Congress and Exposition March 1994
- Onion G. Rothwell, A.J. “Laboratory Assessment of Diesel Fuel Filters,” The Institution of Mechanical Engineers, Lubrication Group January 1962
- Kaldonski, T. “Precision Elements Wear in Diesel Engine Injection Apparatus,” 3rd International Tribology Congress Warsaw, Poland 1981
- Barlett, P.J. “Diesel Fuel Filter Testing,” SAE Paper No. 710814 October 1971
- Roth, G. Correlation of Fuel Filtration Levels to Fuel Injector Wear and Performance Shifts,” SAE Paper No. 930021 March 1993
- Burman, P.G. DeLuca, F. “Fuel Injection and Controls for Internal Combustion Engines,” 1962
- Society of Automotive Engineers SAE J1985 “Fuel Filters-Initial Single Pass Efficiency Test Method.”