This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Combustion Chamber Deposits: Fuel and Lubricant Effects on Exhaust Hydrocarbon Emissions Measured by Fast FID Analyzer
Technical Paper
2000-01-2024
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This work was conducted in order to study the effect of Combustion Chamber Deposits (CCD) on engine-out hydrocarbon emissions. A bench engine test based on the CEC-F-20 test procedure was used to accumulate CCD. The experiments were performed on a 2.0 L, four-cylinder engine with multipoint fuel injection. All measurements were carried out under steady state operating conditions at full load on the engine.
The measurement of exhaust hydrocarbons was accomplished with a fast-response FID analyser, with the sample probe being installed close to the exhaust valves in the exhaust port of cylinder #1 and #4, respectively. Interpretation of the measurements was based on the typical hydrocarbon curve measured by the fast FID during the exhaust phase of the combustion cycle.
In order to emphasize the CCD effect, three pure component fuels of differing volatilities were used. Test results indicated that CCD gave an increase of total HC amount. The effect of the squish area deposits were considered separately from total CCD; the results showed that deposit formation in the squish area can critically impact the combustion process.
Additional measurements were accomplished to assess the effect on engine-out HC emissions of fuel absorption/desorption by the cylinder wall oil layer using two different base oils (mineral and synthetic).
The experimental results appear to confirm a suspected role of fuel solubility in engine oils.
Recommended Content
Authors
Topic
Citation
Tondelli, G., Carriero, M., and Pedicillo, A., "Combustion Chamber Deposits: Fuel and Lubricant Effects on Exhaust Hydrocarbon Emissions Measured by Fast FID Analyzer," SAE Technical Paper 2000-01-2024, 2000, https://doi.org/10.4271/2000-01-2024.Also In
References
- Heywood J.B. “Internal Combustion Engine Fundamentals” Mc Graw Hill Book Company New York 1988
- CRC Report N.595 “Literature Search on the Impact of Combustion Chamber Deposits on Engine Performance” Coordinating Researcg Council 1995
- Wentworth J.T. “More on Origin of Exhaust Hydrocarbons Effect of Zero Oil Consumption,Deposit Location, and surface roughness” SAE Paper 720939
- Cheng S. et Al. “An overview of Hydrocarbon Emission Mechanism In Spark Ignition Engines” SAE Paper 932708
- Eng J.A. et al “Experimental Hydrocarbon Consumption Rate Correlations From Spark-Ignition Engine” SAE Paper 972888
- Frolund Kent Schram Jasper “Simulation of HC-Emission From SI-Engines- A parametric Study” SAE Paper 972893
- Bignon E. Spicher U. “Investigation of The Influence of Top Land Crevice Geometry on Hydrocarbon Emissions from SI-engines” SAE Paper 982560
- CEC Method “Deposit Forming Tendencyon Intake Valves and in Combustion Chamber of Gasoline Engines” 4 16 Oct. 98
- Richardson C.E. “Evaluation of the Effect of Fuel Composition and Gasoline Additives on Combustion Chamber Deposits SAE Paper 962012
- Cheng S. “”A Micrografic Study of Deposits Formation Processes In Combustion Chamber” SAE Paper 962008
- Heywood J.B. “The effects of Crevices on The Engine out Hydrocarbon Emission in SI Engines” SAE Paper 940306
- Yakei Y. “Effects of Gasoline and Gasoline Detergents on Combustion Chamber Deposits Formation” SAE Paper 941893
- Kalghatgi G.T. “Combustion Chamber Deposits inSpark-Ignition Engines: A Literature Review” SAE Paper 952443
- Dent J.C. Lakshiminarayanan P.A. “A Model for absorption and Desorption of Fuel Vapour by Cylinder Lubricating Oil Films and its Contribution to Hydrocarbon Emissions” SAE Paper 830652
- Gatellier B. et al. “Hydrocarbon Emissions of SI Engines as Influenced by Fuel Absorption.Desorption in Oil Films” SAE Paper 920095
- Norris M.G Hochgreb S “Extent of Oxidation of Hydrocarbons Desorbing from the Lubricant Oil Layer in Spark-Ignition Engines” SAE Paper 960069
- “Automotive Industries” March 1997 46
- Miorali M. Pedicillo A. Mercogliano R. “Measurement of the Fuel Stored on the Intake Wall Port Fiel Injected Engine Equipped with a Double Fuel Injection System” SAE Paper 982472
- Kaiser E. et al. “Efect of fuel Dissolved in Crankcase Oil on Engine-Out Hydrocarbon Emissions from a Spark- Ignited Engine SAE Paper 972891
- Linna J.R et al “Contribution of Oil Layer Mechanism to the Hydrocarbon Emissions from Spark-ignition Engines” SAE Paper 972892
- Parks J. et al. “In Situ Measurement of Fuel Absorption into the Cylinder Wall oil Film During Engine Cold Start” SAE Paper 981054
- Frottier V. Heywood J.B. Hochgreb S. “Measurement of Gasoline Absorption into Lubricating Oil” SAE Paper 961229
- Korematsu K. “Effects of Fuel Absorbed in Oil Film on Unburned Hydrocarbon Emissions from Spark-Ignition Engines(Numerical model of Dynamic process of Fuel Absorption and Desorption) JSME Int. Journal, series II 33 3 1990
- Kaiser E.W. Siegl W.O. Russ S.G. “Fuel Composition Effects on Hydrocarbon Emission From a Spark Ignited Engine - Is fuel absorption in Oil Significant?” SAE Paper 952542