| Main Title |
Correlation Between Cycle-by-Cycle Cylinder Gas Motion and Combustion Variations of an SI Engine. |
| Author |
Barto, R. K. ;
|
| CORP Author |
Pennsylvania State Univ., University Park. Dept. of Mechanical Engineering. |
| Year Published |
1970 |
| Report Number |
S45; PHS-AP-00560; |
| Stock Number |
PB-227 021 |
| Additional Subjects |
Internal combustion engines ;
Gas flow ;
Combustion ;
Spark ignition engines
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-227 021 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
132p |
| Abstract |
The extent of cycle-by-cycle combustion variations of a single cylinder spark ignition engine were determined for specific characteristics of the cylinder pressure development histories. The extent of cycle-by-cycle gas velocity variations were determined in the vicinity of the spark plug of the motored engine using a hot film sensor. The results led to the conclusion that cycle-by-cycle combustion variations are caused by cycle-by-cycle variations of the gas velocity in the vicinity of the spark plug at the time of ignition. Additionally a quantitative measure of the phasing of the combustion process allows the effects of these velocity variations on maximum cylinder pressure to be evaluated for different engine variables. (Modified author abstract) |
