Motorcycle emission control demonstration. Final report April--November 1977

Technical Report · Thu Dec 01 00:00:00 EST 1977

OSTI ID:6680050

Ullman, T L; Hare, C T

The testing of ten motorcycles for exhaust emissions of hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx) is described. 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)

• Research Organization: Southwest Research Inst., San Antonio, TX (USA)
• DOE Contract Number: EPA-68-03-2391
• OSTI ID: 6680050
• Report Number(s): PB-276922; SwRI-AR-1230
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
CARBON MONOXIDE
AIR POLLUTION CONTROL
HYDROCARBONS
MOTORCYCLES
EXHAUST GASES
POLLUTION CONTROL EQUIPMENT
NITROGEN OXIDES
FEDERAL TEST PROCEDURE
FUEL ECONOMY
SPARK IGNITION ENGINES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
ENGINES
EQUIPMENT
GASEOUS WASTES
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION CONTROL
TESTING
VEHICLES
WASTES
330700* - Advanced Propulsion Systems- Emission Control