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Central Port Fuel Injection
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English
Abstract
The primary objective of Central Port Fuel Injection is to be a low cost multi-point fuel injection system with the additional attributes of compactness, packaging flexibility, and reliability.
Performance of this fuel system closely resembles that of a simultaneous multi-point fuel injection system in flow control, dynamic range, cylinder-to-cylinder distribution, idle quality, transient response, and emissions. The system provides significantly improved performance in the areas of hot fuel handling, cold startability, vacuum and voltage sensitivity and system noise. This performance comes at a significant cost savings and greater packaging and targeting flexibility over a conventional multi-point fuel injection system.
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Citation
Zizelman, J., Seino, M., Graves, M., and Manz, J., "Central Port Fuel Injection," SAE Technical Paper 920295, 1992, https://doi.org/10.4271/920295.Also In
References
- Bowler L. L. “Throttle Body Fuel Injection (TBI) - An Integrated Engine Control System” SAE 800164
- Waters J. P. “System Level Comparison of Various Port Fuel Injection Strategies” General Motors EMSC Report #89038-F
- Nakamura Norihiko Nomura Kenichi Suzuki Makoto “Key Factors of Fuel Injection System to Draw Out Good Response in 4-Valve Engine” SAE 870126
- Greiner Max Romann Peter Steinbrunner Ulrich “Bosch Fuel Injectors - New Developments” SAE 870124
- Walker James W. Wiltse Robert F. Harhaus Volker W. “The GM 4.3 Liter V-6 Gasoline Engine” SAE 841225
- Pugh Stuart “Total Design” 0-201-41639-5