High-Pressure Injection Fuel System Wear Study

Paper #:
  • 980869

Published:
  • 1998-02-23
Citation:
Bessee, G., Yost, D., Jones, G., Becktel, D. et al., "High-Pressure Injection Fuel System Wear Study," SAE Technical Paper 980869, 1998, https://doi.org/10.4271/980869.
Pages:
11
Abstract:
The critical particle size for a high-pressure injection system was determined. Various double-cut test dusts ranging from 0 to 5 μm to 10 to 20 μm were evaluated to determine which test dust caused the high-pressure system to fail. With the exception of the 0- to 5-μm test dust, all test dust ranges caused failure in the high-pressure injection system. Analysis of these evaluations revealed that the critical particle size, in initiating significant abrasive wear, is 6 to 7 μm. Wear curve formulas were generated for each evaluation. A formula was derived that allows the user to determine if the fuel filter effluent will cause harmful damage to the fuel system based on the number of 5-, 10-, and 15-μm particles per milliliter present.A methodology was developed to evaluate fuel filter performance as related to engine operating conditions. The abrasive methodology can evaluate online filter efficiency and associated wear in a high-pressure injection system.
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