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An Engine Dynamometer Test for Evaluating Port Fuel Injector Plugging
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English
Abstract
An engine dynamometer test procedure was developed for evaluating fuel and fuel additive effects on the plugging of port fuel injectors. The test procedure was shown to adequately reflect the influence of fuels and additives on injector plugging in vehicles. Injector soak temperature and fuel system configuration were found to be critical factors in obtaining an acceptable engine-vehicle correlation.
Injector plugging occurred in as little as 10 hours with a high-olefin base fuel; in contrast, plugging took two orders of magnitude longer with a high-quality, detergent-containing, commercial-type fuel. Furthermore, fuel additives greatly increased plugging resistance with the OEM, pintle-type injectors.
Injector design alterations were also shown to be important. Pintle-type injectors with flared, aluminum caps extended plugging time considerably relative to the same injector design with plastic caps. Director plate-type injectors were much better still.
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Authors
Citation
Caracciolo, F. and Stebar, R., "An Engine Dynamometer Test for Evaluating Port Fuel Injector Plugging," SAE Technical Paper 872111, 1987, https://doi.org/10.4271/872111.Also In
References
- Tupa R. C. “Today's Gasoline Concerns -Injector Plugging and Valve Seat Wear,” Paper Number AM-86-21, presented at the 84th Annual Meeting National Petroleum Refiners Association Los Angeles, California March 1986
- Benson J. D. Yaccarino P. A. “The Effects of Fuel Composition and Additives on Multiport Fuel Injector Deposits,” SAE Paper 861533 1986
- Tupa R. C. Koehler D. E. “Gasoline Port Fuel Injectors - Keep Clean/Clean Up with Additives,” SAE Paper 861536 1986
- Taniguchi B. Y. Peyla R. J. Parsons G. M. Hoekman S. K. Voss D. A. “Injector Deposits - The Tip of Intake System Deposit Problems,” SAE Paper 861534 1986
- Abramo G. P. Horowitz A. M. Trewella J. C. “Port Fuel Injector Cleanliness Studies,” SAE Paper 861535 1986
- Lenane D. L. Stocky T. P. “Gasoline Additives Solve Injector Deposit Problems,” SAE Paper 861537 1986
- Kehrl H. H. “Fuel Injector Deposits,” letter to Chief Executive Officers of major petroleum companies and trade associations November 18 1985
- Kehrl H. H. letter to Chief Executive Officers of major petroleum companies and trade associations April 11 1986
- Tupa R. C. Dorer C. J. “Gasoline and Diesel Fuel Additives for Performance/Distribution/Quality,” SAE Paper 841211 1984
- Kamiya Y. Ingold K. U. “The Metal-Catalyzed Autoxidation of Tetralin; III. Catalysis by Manganese, Copper, Nickel, and Iron,” Canadian Journal of Chemistry 42 1964
- “CRC Round Robin PFI Program,” CRC Project No. CM-128-85 Automotive Fuel Injector Deposit Group of the Coordinating Research Council October 1986