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Evaluation of Engine Operating Characteristics on a Fluidic Device Based Fuel Injection System
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English
Abstract
A prototype multipoint fuel injection system which utilises fluidic injection devices as fuel injectors for spark ignition engines is described in this paper. The unique fluidic injector unit combines four no-moving-part, monostable fluidic devices controlled by a solenoid valve interface and air-fuel mixing nozzles for well atomised air-fuel mixture.
The design philosophy and operating characteristics of the novel integrated fluidic injector unit for engine applications are discussed in details in this paper. The initial engine tests on this fluidic injection system show that it provides an extended lean limit of the air/fuel mixture (by 2.2 air/fuel ratio), 7% improvement in fuel economy and 10% reduction in HC emissions compared with a base line carburetted system. These results confirmed that the use of the fluidic fuel injection system resulted in improved fuel distribution, better air/fuel mixture preparation and faster flame propagation speed.
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Citation
Huang, Q., Jones, B., and Leighton, N., "Evaluation of Engine Operating Characteristics on a Fluidic Device Based Fuel Injection System," SAE Technical Paper 930324, 1993, https://doi.org/10.4271/930324.Also In
References
- Bowles Fluidic Corporation “Improvements in or relating to fuel injection control system” September 12 1972
- Woods Robert L. “Constant mass air/fuel ratio fluidic fuel injection system” February 10 1976
- Leighton N. J. Jones B. “IC engine fuel injection system using electro-fluidic injectors” September 14 1988
- Bowles Fluidic Corporation “Fuel injection system” April 14 1986
- Huang Q. Leighton N.J. Jones B. “Electro-fluidic devices as fuel injectors for spark-ignition engine fuel injection system” SAE paper 910378
- Huang Q. Leighton N.J. Jones B. “A study of the potential non-moving-part fluidic devices for SI engine fuel injection systems” European Automobile Engineers Cooperation (EAEC), 3rd International Conference, EAEC No. 91005 June 1991 France
- Huang Q. “Fluidic devices as fuel injectors for SI engine fuel injection systems” January 1992 Birmingham University U.K.