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Fuel Film Dynamics in the Intake Port of a Fuel Injected Engine
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English
Abstract
Up to 80 percent of the total hydrocarbons emitted during the EPA Federal emissions test are produced in the first five minutes of this procedure. It has been theorized that this is in part due to wall wetting of the intake port and cylinder.
This study measures the behavior of the fuel film thickness in the intake port during cold starting, steady state and transient operation. Three injector spray patterns with varying droplet sizes were utilized for the tests. The fuel film thickness in the intake port of a Ford 1.9L engine was measured using optical sensors. It was found that the spray pattern and droplet size affected the port wall wetting characteristics.
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Citation
Bourke, M. and Evers, L., "Fuel Film Dynamics in the Intake Port of a Fuel Injected Engine," SAE Technical Paper 940446, 1994, https://doi.org/10.4271/940446.Also In
References
- Bourke, Mary C. “Fuel Film Dynamics in the Intake Port of a Fuel Injected Engine,” Michigan Technological University 1993
- Gallopoulos, N. “Bridging the Present to the Future in Personal Transportation - The Role of Internal Combustion Engine,” SAE 920721
- Nogi, T. Ohyama, Y. Yamamuchi, T. Kuriowa “Mixture Formation of Fuel Injection Systems in Gasoline Engines,” SAE 880558
- Okamoto, Arai Nakagawa, Kosuge Atago “Atomization Characteristics of Two-Stream In injector for Four-Valve Engine,” SAE 920705
- Takemura, J. Sanbuyashi, D. Ando H. “Effect of Turbulence in the Intake Port of MPI Engine on Transport Phenomena and Non-Uniformity of Fuel/Air Mixing in, Cylinder,” SAE 900162
- Mikulic, L.A. Quissek, F. Fraidl, G.K. “Development of Low Emission High Performance Four Valve Engines,” SAE 900227
- Servati, H.B. Herman, E.W. “Spray/Wall Interactions Simulation,” SAE 890566
- Servati, H.B. Yuen, W.W. “Deposition of Fuel Droplets in a Horizontal Intake Manifold and the Behavior of Fuel Film Flow on Its Walls,” SAE 840239
- Aquino, C.F. Fozo, S.R. “Transient A/f Characteristics for Cold Operation of a 1.6L Engine with Sequential Fuel Injection,” SAE 880691
- Hires Overington “Transient Mixture Strength - An Investigation Into the Causes and the Development of a Constant Mixture Strength Fueling Strategy,” SAE 810495
- Beninger, N. F. Plap, G. “Requirements and Performance of Engine Management Systems Under Transient Conditions,” SAE 910083
- Jackson, K. “The Feasibility of an Internally Reflecting Liquid Depth Sensor,” Michigan Technological University 1990
- Coste, T. Quarterly Progress Reports on Fuel Film Dynamics Michigan Technological University 1991-1993
- Robert Bosch Corporation Bosch Automotive Handbook SAE Press 1986
- Kuo, Tang-Wei “Multi-Dimensional Port and Cylinder Gas Flow, Fuel Spray and Combustion Calculation for a Port-Fuel-Injection Engine,” SAE 920515
- Fox, J.W. Min, K.D. Heywood, J.B. Collings, N. “Mixture Preparation in a SI Engine with Port Fuel Injection During Starting and Warmup,” SAE Fuels and Lubricants Meeting October 19-22 1992