| Main Title |
Study of One Gasoline-Fueled Engine Line Comparing Emission Results Between 1969 Engines and 1979 Engines on Three Test Procedures: The Heavy-Duty Transient Engine Test, the Heavy-Duty 9-Mode Engine Test, and the Light-Duty Truck Chassis Test. |
| Author |
Clemmens, William B. ;
Cox., Timothy P. ;
|
| CORP Author |
Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch. |
| Year Published |
1979 |
| Report Number |
EPA-AA-SDSB-79-16; |
| Stock Number |
PB80-149305 |
| Additional Subjects |
Truck engines ;
Exhaust emissions ;
Gasoline engines ;
Fuel consumption ;
Air pollution ;
Performance evaluation ;
Heavy duty trucks ;
Light duty trucks ;
Gasoline engines(1969 models) ;
Gasoline engines(1979 models)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB80-149305 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
20p |
| Abstract |
The 1977 Amendments to the Clean Air Act mandated EPA to set new emission standards for heavy-duty (HD) vehicles or engines for model years 1983 and 1985. These new standards were to represent a percentage reduction 'from the average of the actually measured emission from heavy-duty gasoline-fueled vehicles or engines...manufactured during the baseline model year.' EPA has initiated a testing program to determine the baseline emission levels. The testing program includes multiple transient tests on each baseline engine, during which emissions are measured by the critical flow venturi constant volume sample CFS-CVS technique. Additional testing on each engine includes the current 9-mode certification procedure modified to use the CVS bag procedure. |
