NDLI: Conventional engine technology. volume 3: comparisons and future potential

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Conventional engine technology. volume 3: comparisons and future potential

Content Provider	NASA Technical Reports Server (NTRS)
Author	Dowdy, M. W.
Copyright Year	1981
Description	The status of five conventional automobile engine technologies was assessed and the future potential for increasing fuel economy and reducing exhaust emission was discussed, using the 1980 EPA California emisions standards as a comparative basis. By 1986, the fuel economy of a uniform charge Otto engine with a three-way catalyst is expected to increase 10%, while vehicles with lean burn (fast burn) engines should show a 20% fuel economy increase. Although vehicles with stratified-charge engines and rotary engines are expected to improve, their fuel economy will remain inferior to the other engine types. When adequate NO emissions control methods are implemented to meet the EPA requirements, vehicles with prechamber diesel engines are expected to yield a fuel economy advantage of about 15%. While successful introduction of direct injection diesel engine technology will provide a fuel savings of 30 to 35%, the planned regulation of exhaust particulates could seriously hinder this technology, because it is expected that only the smallest diesel engine vehicles could meet the proposed particulate requirements.
File Size	1737429
Page Count	34
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19820011670
Archival Resource Key	ark:/13960/t6f23s84b
Language	English
Publisher Date	1981-12-15
Access Restriction	Open
Subject Keyword	Mechanical Engineering Engine Design Diesel Engines Exhaust Gases Pollution Control Technology Assessment Otto Cycle Particulates Fuel Consumption Nitrogen Oxides Energy Policy Automobile Engines Mechanical Drives Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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