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Where Are All Those Gadgets Going?
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1971 by SAE International in United States
Annotation ability available
With the passage of the federal Clean Air Act, the automotive industry has a clear assignment to reduce automobile emissions drastically by 1975. The control devices presently available have already reduced hydrocarbons 83%, carbon monoxide 70%, and nitrogen oxides 33%. By 1975, these figures must be 98%, 97%, and 90%, respectively.
This paper discusses the devices that have been developed to accomplish the reductions to date, and concludes that in the future the crankcase controls will require little change, that the evaporative controls will require some additional improvement but will not change substantially, and that engine modifications do not have much chance of meeting the 1975 standards without a great deal of supplementation.
The author feels two methods are available which may be able to reach the 1975 standards: use of manifold reactors and use of catalysts. However, both present problems of materials and thermodynamics, due to high exhaust temperatures. This is the engineering challenge in the next five years.
CitationHeinen, C., "Where Are All Those Gadgets Going?," SAE Technical Paper 710074, 1971, https://doi.org/10.4271/710074.
- “Control Techniques For Carbon Monoxide, Nitrogen Oxide and Hydrocarbon Emissions From Mobile Sources.” National Air Pollution Control Association 1970
- State of California Health and Safety Code, Air Pollution Standards, Section 39101.5 Nov. 13 1968
- “Nationwide Inventory of Air Pollutant Emissions.” National Air Pollution Control Administration
- “Vehicle Emissions.” SAE Progress in Technology Series 6 New York Society of Automotive Engineers 1964
- “Vehicle Emissions.” SAE Progress in Technology Series 12 New York Society of Automotive Engineers 1966
- Bennett P. A. Jackson M. V. Murphy C. K. Randall R. A. “Reduction of Air Pollution by Control of Emission from Automobile Crankcases.” SAE Transactions 68 1960 514
- Clarke P. J. Gerrard J. E. Skarstrom C. M. Vardi J. Wade D. T. “An Absorption-Regeneration Approach to the Problem of Evaporative Control.” SAE Transactions 76 paper 670127
- Wentworth J. T. Daniel W. A. “Flame Photographs of Light Load Combustion Point the Way to Reduction of Hydrocarbons in Exhaust Gas.” Paper 425 presented at SAE Annual Meeting Detroit January 1955
- Beckman E. W. “Automobile Emission Control.” Oral presentation, SAE Meeting Bartlesville, Okla March 1969
- Chandler J. M. Struck J. H. Voorheis W. J. “The Ford Approach to Exhaust Emission Control.” Paper 660163 presented at SAE Automotive Engineering Congress Detroit January 1966
- Steinhagen W. K. Niepoth G. W. Mick S. H. “Design and Development of the General Motors Air Injection Reactor System.” Paper 660106 presented at SAE Automotive Engineering Congress Detroit January 1966
- Benson J. D. “Reduction of Nitrogen Oxides in Automobile Exhaust.” SAE Transactions 78 1969 paper 690019
- Kopa R. D. Kimura H. “Exhaust Gas Recirculation as a Method of Nitrogen Oxide Control in an Internal Combustion Engine.” University of California, Department of Engineering Los Angeles, Calif. 1960
- Cantwell E. N. Pahnke A. J. “Design Factors Affecting the Performance of Exhaust Manifold Reactors.” SAE Transactions 74 1966 paper 650527
- Heinen C. M. “Thermal Considerations in Exhaust Emission Control Systems.” Paper 486J presented at SAE National Automobile Week Detroit March 1962