Record Display for the EPA National Library Catalog


Main Title Nitrogen oxide control with the delayed mixing stratified charge engine concept /
Author Evers, Lawrence William, ; Myers, P. S. ; Uyehara., O. A.
CORP Author Wisconsin Univ.-Madison. Dept. of Mechanical Engineering and Statistics.;Environmental Protection Agency, Ann Arbor, Mich. Emission Control Technology Div.
Publisher University of Wisconsin,
Year Published 1976
Report Number EPA 460-3-76-022; EPA-R-803858-01-0
Stock Number PB-267 633
OCLC Number 02577434
Subjects Nitrogen oxide control
Additional Subjects Exhaust emissions ; Nitrogen oxides ; Air pollution control ; Stratified charge engines ; Numerical analysis ; Hydrocarbons ; Carbon monoxide ; Internal combustion engines ; Nitrogen oxide(NO) ; Mixing ; Homogenizing ; Computer programs ; Performance evaluation ; Design criteria ; Mathematical models ; Test engines ; Experimental design ; Diameters ; Computer programming ; Air fuel ratio ; Air injection systems
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 460-3-76-022 Headquarters Library/Washington,DC 12/20/2019
ELBD ARCHIVE EPA 460-3-76-022 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELCD  EPA-460/3-76-022 NVFEL Library/Ann Arbor, MI 06/21/2017
NTIS  PB-267 633 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xix, 245 leaves : charts ; 29 cm
The purpose of this study is to explore methods of controlling the nitrogen oxide emissions from internal combustion engines. From computer calculations, the delayed mixing stratified charge engine concept was selected. In the delayed mixing stratified charge engine concept, combustion is initiated and completed in a fuel-rich region, then air is mixed into those rich products. A study of existing engines shows that some operational stratified charge engines limit nitrogen oxide emissions in a manner similar to the delayed mixing concept. A single cylinder engine was modified to include an air injection valve. When air was injected after rich combustion, the nitrogen oxide emissions were lower, the hydrocarbon emissions were lower, the carbon monoxide emissions were about the same and the efficiencies were lower than for homogeneous operation at the same overall fuel-air ratio.
Vita. "EPA 460-3-76-022." "July 1976." Cover title. Grant No. R803858-01-0 Includes bibliographical references (leaves 168-174).