This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Axially-Stratified-Charge Engine
Annotation ability available
Sector:
Language:
English
Abstract
A method to stratify the fuel-air mixture along the cylinder axis of engines is described. Axial stratification, with the richest mixture near the top of the combustion chamber and the leanest mixture near the piston top, was obtained by imparting swirl to the intake air and by injecting fuel into the inlet port just before the end of the intake stroke. Axial stratification was developed in both single and multi-cylinder engines over the range of operating conditions tested.
A production four-cylinder engine modified to operate with axially-stratified-charge, showed: increased combustion stability and tolerance to dilute mixtures; decreased fuel consumption; similar HC and CO emissions; lower NO emissions and octane requirement when compared with the unmodified engine operated at the same overall equivalence ratio.
Recommended Content
Topic
Citation
Quader, A., "The Axially-Stratified-Charge Engine," SAE Technical Paper 820131, 1982, https://doi.org/10.4271/820131.Also In
References
- Peters B. D. Quader, A. A. “‘Wetting’ the Appetite of Spark Ignition Engines For Lean Combustion,” SAE Transactions 87 780234 1978
- Peters, B. D. “Fuel Droplets Inside the Cylinder of a Spark Ignition Engine With Axial Stratification.” To be presented to SAE 1982
- Hussmann, A. W. Kahoun, F. Taylor, R. A. “Charge Stratification by Fuel Injection Into Swirling Air,” SAE Transactions 71 1962
- Wentworth, J T. “A New Exhaust Pipe Sampling Valve” “Research Publication GMR-766, General Motors Research Laboratories 1968
- Zvonow, V. A. Stewart, H. E. Starkman, E. S. “An Hydraulically Actuated Combustion Gas Sampling Valve,” Review of Scientific Instruments 1968
- Lancaster, D. R. “Effects of Engine Variables on Turbulence In A Spark-Ignition Engine,” SAE Transactions 85 760159 1976
- Blumberg, P. N. “Nitric Oxide Emissions From Stratified Charge Engines: Prediction and Control,” Scientific Research Staff Publication Report, Ford Motor Company 1972
- Nagayama, I. Araki, Y. Iioka, Y. “Effects of Swirl and Squish on S. I. Engine Combustion and Emission,” SAE Transactions 86 770217 1977
- Wallace, T. F. “Buick’s Turbocharged V-6 Powertrain for 1978,” SAE Transactions 87 780413 1978
- Young, M. B. “Cyclic Dispersion -- Some Qualitative Cause-and-Effect Relationships,” SAE Paper 800459 1980
- Mattavi, J. N. “The Attributes of Fast Burning Rates in Engines,” SAE Paper 800920 1980
- Kurode, H. Nakajima, Y. Sugihara, K. Takagi, Y. Muranaka, S. “Fast Burn With Heavy EGR Improves Fuel Economy and Reduces NO x Emission,” JSAE Review No. 2 1980
- Quader, A. A. “Lean Combustion and the Misfire Limit in Spark Ignition Engines,” SAE Transactions 83 741055 1974
- Quader, A. A. “What Limits Lean Operation in Spark Ignition Engines -- Flame Initiation or Propagation?” SAE Transactions 85 760760 1976
- Quader, A. A. “Effects of Spark Location and Combustion Duration on Nitric Oxide and Hydrocarbon Emissions,” SAE Transactions 82 730153 1973
- Thring, R. H. “The Effects of Varying Combustion Rate in Spark Ignited Engines,” SAE Paper 790387 1979
- Quader, A. A. “Why Intake Charge Dilution Decreases Nitric Oxide Emissions From Spark Ignition Engines,” SAE Transactions 80 710009 1971
- Caris D. F. Nelson, E. E. “A New Look At High Compression Engines,” SAE Transactions 67 1959
- Daniel, W. A. “Why Engine Variables Affect Exhaust Hydrocarbon Emissions,” SAE Transactions 79 700108 1970
- Uyehara, O. A. Myers, P. S. Marsh, E. E. Cheklich, G. E. “A Classification of Reciprocating Engine Combustion Systems,” SAE Transactions 83 1974
- Turkish, M. C. “3-Valve Stratified Charge Engines: Evolution, Analysis and Progression,” SAE Transactions 83 741163 1974
- Mitchell, E. Alperstein, M. Cobb, J. M. Faist, C. F. “A Stratified Charge Multifuel Military Engine - A Progress Report,” SAE Paper 720051 1972
- Simko, A. Choma, M. A. Repko, L. L. “Exhaust Emissions Control by the Ford Programmed Combustion Process - PROCO,” SAE Transactions 81 720052 1972
- Baudry, J. “Some Recent Results Concerning the Reductions of Pollution by the Stratified Charge IFP Process,” SAE Transactions 74 650148 1966
- Warren, G. B. “Fuel-Economy Gains From Heated Lean Air-Fuel Mixture in Motor Car Operation,” ASME Preprint #65-WA/APC and Supplement 1965
- Resler, E. L. Jr “Stratified Charge,” United States Patent 4,104,989 1978
- Klomp, E. D. “Vortex Chamber Stratified Charge Engine,” United States Patent 4,018,193 1977
- Parker, R. H. “Bendix Sequential Fuel Injection for 0.4 NO χ Control,” SAE Paper 790175 1979
- Stivender, D. L. “Development of a Fuel-Based Mass Emission Measurement Procedure,” SAE Paper 710604 1971
- Johnston, R. W. Newman, J. J. Agarwal, P. D. “Programmable Energy Ignition System For Engine Optimization,” SAE Transactions 84 750348 1975
- Daniel W. A. Wentworth, J. T. “Exhaust Gas Hydrocarbons - Genesis and Exodus,” Published in SAE Technical Progress Series, Vol. 6, “Vehicle Emissions,” New York 1964
- Wentworth, J. T. “Piston and Ring Variables Affect Exhaust Hydrocarbon Emissions,” SAE Transactions 77 680109 1968
- Canale, R. P. Winegarden, S. R. Carlson, C. R. Miles, D. L. “General Motors Phase II Catalyst System,” SAE Transactions 87 780205 1978
- Wentworth J. T. Daniel, W. A. “Flame Photographs of Light Load Combustion Point the Way to Reduction of Hydrocarbons in Exhaust Gas,” SAE Transactions 63 1955
- Lancaster, D. R. Krieger, R. B. Lienesch, J. H. “Measurement and Analysis of Pressure Data,” SAE Transactions 84 750026 1975