Record Display for the EPA National Library Catalog


Main Title Motorcycle emission control demonstration /
Author Ullman, Terry L. ; Hare., Charles T.
Other Authors
Author Title of a Work
Hare, Charles T.
CORP Author Southwest Research Inst., San Antonio, Tex.;Environmental Protection Agency, Ann Arbor, Mich. Emission Control Technology Div.
Publisher U.S. Environmental Protection Agency Office of Mobile Source Air Pollution Control,
Year Published 1977
Report Number EPA 460-3-77-020; SwRI-AR-1230; EPA-68-03-2391
Stock Number PB-276 922
OCLC Number 37855720
Subjects Motorcycles--Motors--Exhaust gas ; Motorcycles--Pollution control devices
Additional Subjects Air pollution control ; Exhaust emissions ; Motorcycles ; Hydrocarbons ; Carbon monoxide ; Nitrogen oxides ; Rotary combustion engines ; Thermal reactors ; Tables(Data) ; Concentration(Composition) ; Afterburners ; Oxidation ; Tests ; Performance evaluation ; Injection ; Catalytic reactors(Exhaust systems) ; Air fuel ratio ; Light duty vehicles ; Air pollution sampling
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 460-3-77-020 Headquarters Library/Washington,DC 03/02/2020
ELBD ARCHIVE EPA 460-3-77-020 AWBERC Library/Cincinnati,OH 10/06/2021
ELCD  EPA 460/3-77/020 NVFEL Library/Ann Arbor, MI 06/21/2017
NTIS  PB-276 922 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 1 volume (various pagings) : illustrations ; 28 cm
This report describes the testing of ten motorcycles for exhaust emissions of hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx). Emission rates in grams per kilometer are presented for the 1975 Federal Test Procedure and the Highway Fuel Economy Test, as well as in percent or parts per million for several steady-state conditions. The test motorcycles were equipped with 2-stroke, 4-stroke, and rotary engines ranging from about 100 to 1000 cc displacement. Several exhaust emission control techniques were applied, including minor and major carburetor enleanment with and without capacitive discharge ignition, secondary air injection with both pumps and reed valves, port liners, thermal reactors, oxidation catalysts, rotary valve modification, a spark ignited afterburner, and a short-circuited air-fuel mixture extraction system. Driveability, performance, and maladjustment (stock only) testing were also performed. All testing was performed with low accumulated distance on the motorcycles. (Portions of this document are not fully legible)
"EPA 460-3-77-020." "August 1977." Cover title. Contract no. 68-03-2391. EPA Project Officer: Randall H. Field. "AR-1230." Includes bibliographical references.