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Electronic Fuel Injection for Two-Stroke Cycle Gasoline Engines
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English
Abstract
A new method for direct cylinder injection for two-stroke cycle engines is described. The technique utilizes simple hole type nozzles, accumulator injectors, medium pressure (100 bar), pressure metering, and full electronic controls. The objectives of the system are to accomplish, in a single injection, the four essentials of effective fuel injection (a) metered quantity of fuel, (b) desired spatial distribution, (c) timing of injection, (d) complete vaporization prior to the start of combustion.
Special techniques such as “cloud-stratified charge” and “skip-fire” are discussed as well as the special design features of the components and control systems. Data presented include details of spray formation and engine performance with dramatic reduction in fuel consumption and exhaust emissions.
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Citation
Beck, N., Johnson, W., Barkhimer, R., and Patterson, S., "Electronic Fuel Injection for Two-Stroke Cycle Gasoline Engines," SAE Technical Paper 861242, 1986, https://doi.org/10.4271/861242.Also In
References
- Beck, N.J. Barkhimer, R.L. Calkins, M.A. Johnson, W.P. Weseloh, W.E. “Direct Digital Control of Electronic Unit Injectors” SAE Paper 840273
- Weseloh, W. “EEC IV Full Authority Diesel Fuel Injection Control” SAE Paper 861098 1986
- Vieilledent, E. “Low Pressure Electronic Fuel Injection System for Two-Stroke Engines” SAE Paper 780767
- Blair, G.P. “Fuel Injection of a Two-Stroke Cycle Spark Ignition Engine” SAE Paper 820952
- Kuentscher, V. “Application of Charge Stratification, Lean Burn Combustion Systems and Anti-Knock Control Devices in Small Two-Stroke Cycle Gasoline Engines” SAE Paper 860171
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- Schweitzer, P.H. “Factors in Diesel Spray Nozzle Design in the Light of Recent Oil Spray Research” Penn. State College Bulletin 12 1930
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