| Main Title |
Exhaust Emissions on an Uncontrolled Passenger Car Using Variable Cam Timing. |
| Author |
Thompso, John C. ;
|
| CORP Author |
National Air Pollution Control Administration, Ann Arbor, Mich. Div. of Motor Vehicle Research and Development. |
| Year Published |
1970 |
| Report Number |
APTD-1437 ;71-4; |
| Stock Number |
PB-217 023 |
| Additional Subjects |
( Automobile engines ;
Air pollution control equipment) ;
Air pollution ;
Performance evaluation ;
Exhaust gases ;
Carburetors ;
Camshafts ;
Automobile exhaust ;
Air pollution control
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-217 023 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
5p |
| Abstract |
The exhaust emission characteristics of an uncontrolled car using the varicam camshaft timing gear were measured to determine the effect of this device on emissions. To obtain emissions data, a 1962 Chevrolet Biscayne with a 283 cu. in. engine was used both with the varicam installed and with no device. In order to control temperatures, a General Motors temperature sensor was installed with the varicam to allow normal vacuum advance under conditions of high temperature. The following tests were conducted: (1) standard 1968 Federal test procedure for exhaust emissions with both cold and hot start; (2) a closed, constant volume sampling technique using nine (9) repeats of the Federal emissions test cycle (9-CVS). Samples were analyzed for carbon monoxide, hydrocarbons and nitrogen oxides. Tabulated data is presented. |
| PUB Date Free Form |
Aug 70, |
| Category Codes |
13B |
| NTIS Prices |
PC A02/MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326550708 |
| Origin |
NTIS |
| Type |
CAT |
