A Lean Burn Turbocharged, Natural Gas Engine for the US Medium Duty Automotive Market

921552

08/01/1992

Event
Future Transportation Technology Conference & Exposition
Authors Abstract
Content
This paper describes the first phase of a project to develop a medium duty engine to run on compressed natural gas (CNG) as an alternative fuel for vehicles such as school buses and medium trucks. The engine uses a lean burn, open chamber design featuring the Nebula combustion system. Mechanical air-fuel ratio control and a mapped high energy ignition system, combined with a wastegated turbocharger, will contribute to the low emissions.
The CNG engine will have the maximum commonality with the existing diesel engine and will use the same production tooling wherever possible.
The initial build of CNG engine is intended to avoid the expense and complication of an intercooler and catalyst. Future potential for even lower emissions and higher pressure could be achieved by the use of electronic air-fuel ratio control and the addition of intercooling and an oxidation catalyst.
Meta TagsDetails
DOI
https://doi.org/10.4271/921552
Pages
9
Citation
Clarke, D., Such, C., Overington, M., and Das, P., "A Lean Burn Turbocharged, Natural Gas Engine for the US Medium Duty Automotive Market," SAE Technical Paper 921552, 1992, https://doi.org/10.4271/921552.
Additional Details
Publisher
Published
Aug 1, 1992
Product Code
921552
Content Type
Technical Paper
Language
English