The Heavy-Duty Gasoline Engine - An Alternative to Meet Emissions Standards of Tomorrow

Charles E. Roberts; James C. Snyder; Chad Stovell; Lee G. Dodge; Thomas W. Ryan; Rudolf H. Stanglmaier

doi:10.4271/2004-01-0984

2004-03-08

The Heavy-Duty Gasoline Engine - An Alternative to Meet Emissions Standards of Tomorrow 2004-01-0984

A technology path has been identified for development of a high efficiency, durable, gasoline engine, targeted at achieving performance and emissions levels necessary to meet heavy-duty, on-road standards of the foreseeable future. Initial experimental and numerical results for the proposed technology concept are presented. This work summarizes internal research efforts conducted at Southwest Research Institute.

An alternative combustion system has been numerically and experimentally examined. The engine utilizes gasoline as the fuel, with a combination of enabling technologies to provide high efficiency operation at ultra-low emissions levels. The concept is based upon very highly-dilute combustion of gasoline at high compression ratio and boost levels. Results from the experimental program have demonstrated engine-out NO_x emissions of 0.06 g/hp/hr, at single-cylinder brake thermal efficiencies (BTE) above thirty-four percent. Multi-cylinder, 3-way catalyst equipped versions of this engine are estimated to provide NO_xemissions of approximately 0.003 g/hp/hr at efficiencies approaching thirty-nine percent.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $35.00 Print $35.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

The Heavy-Duty Gasoline Engine - An Alternative to Meet Emissions Standards of Tomorrow 2004-01-0984

SAE MOBILUS