Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluation of the Emission Reduction With the Perfect Circle Retronox Speed Controlled EGR System.
Author Gomp, Henry L. ;
CORP Author Environmental Protection Agency, Ann Arbor, Mich. Mobile Source Pollution Control Program.
Year Published 1971
Report Number APTD-1392 ;72-8;
Stock Number PB-218 573
Additional Subjects ( Automobile engines ; Air pollution control equipment) ; Fuel systems ; Exhaust gases ; Air pollution ; Performance evaluation ; Flow regulators ; Carburetors ; Modification kits ; Air pollution control ; Automobile exhaust ; Retronox device ; Retrofit devices
Library Call Number Additional Info Location Last
NTIS  PB-218 573 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 11p
Preliminary evaluations indicated that the Perfect Circle Retronox device caused substantial reduction in total oxides of nitrogen emissions from passenger vehicles. Evaluation of the effectiveness of the device was initiated. The vehicles were tested both in baseline and device equipped configurations by the 1972 Federal emission test procedure. The Retronox system demonstrates significant effectiveness in reducing oxides of nitrogen. In general these emissions can be reduced by over 50%. There also appears to be a smaller yet consistent reduction in hydrocarbon and carbon monoxide possibly resulting from increased fuel-air mixing hence more homogeneous delivery to the individual cylinders. It is anticipated that installation of the system will result in decreased fuel economy. Little adverse effect on driveability was noted or anticipated.