| Title | Lean Mixture Engines Testing and Evaluation Program : Volume 2. Comprehensive Discussion. |
|---|---|
| Record ID | 49336 |
| Personal Name Creator |
Dowdy, Mack W.; Hoehn, Frank W.; Vanderbrug, Tom G. |
| Source | 120p. in various pagings |
| Corporate Creator | Jet Propulsion Laboratory (U.S.) |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. Office of the Secretary |
| Publisher | United States. Dept. of Transportation. Office of the Secretary |
| Publication Date | 19751101 |
| Language | English |
| Abstract | This report is aimed at defining analytically and demonstrating experimentally the potential of the 'lean-burn concept.' Fuel consumption and emissions data are obtained on the engine dynamometer for the baseline engine, and two lean-burn configurations of the same engine and data comparisons are made. Individual cylinder equivalence ratios are measured to evaluate the cylinder-to-cylinder distribution. Pressure-time traces from individual cylinders are used to get information about ignition delay, combustion duration and cycle-to-cycle pressure variations. Fuel consumption and emissions data for one lean-burn configuration are obtained over the Federal Driving Cycle using a chassis dynamometer and the results are compared with the stock baseline results. Using experimental results and information from the existing literature, the potential of the 'lean-burn concept' is assessed using the Blumberg-Kummer cycle analysis program. The main body of the report, provides a comprehensive discussion of each engine improvement, and supporting data, the potential of the lean burn approach, and conclusions and recommendations. |
| Rosap ID | dot:10792 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/10792 |
| TRT Terms | Carbon dioxide; Carbon monoxide; Chassis; Combustion; Combustion chambers; Data collection; Design; Dynamometers; Engines; Evaluation; Exhaust gases; Fuel consumption; Fuels; Gas analysis; Gases; Ignition; Lean fuel mixtures; Nitric oxide; Nitrogen oxides; Physical distribution; Reviews; Shape; Test procedures; Testing; Thermal efficiency; Traffic equivalence factor; Vehicle power plants |
| Classification | AGR - IMPACTS - IMPACTS; AGR - IMPACTS - Environment; NTL - ENERGY AND ENVIRONMENT - ENERGY AND ENVIRONMENT; NTL - ENERGY AND ENVIRONMENT - Environment Impacts |
| Geographical Coverage |
United States |
| Report Number | JPL-5040-12-Vol-2; DOT-TSC-OST-76-26.II |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/49000/49300/49336/DOT-TSC-OST-75-26-2.pdf |
| Format | |
| Database | NTL Digital Repository |