Catalytic Lean Burn Gasoline Engine

EPA Contract Number: 68D10060
Title: Catalytic Lean Burn Gasoline Engine
Investigators: Pfefferle, William
Small Business: Precision Combustion, Inc.
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: September 1, 1991 through March 1, 1992
Project Amount: $49,922
RFA: Small Business Innovation Research (SBIR) - Phase I (1991) RFA Text |  Recipients Lists
Research Category: Air Quality and Air Toxics , SBIR - Air Pollution , Small Business Innovation Research (SBIR)


Precision Combustion, Inc., proposes to explore catalytic coatings on the combustion chamber walls of small utility engines in a continuing modification of small gasoline engines so that ultimately they will be able to operate at truly lean fuel/air ratios favoring low HC, CO, and NOx emissions. The current simplicity of these engines offers some good opportunities for this approach to succeed. A spinoff benefit would likely be technology to similarly modify the more-complex automotive Otto-cycle engine by compiling research data on the effect of catalytic surfaces on engine performance and emissions.

In Phase 1, small engine testing in a well-instrumented engine test cell will explore this catalytic lean burn concept on a four-stroke engine. In Phase II, the concept would be carried forward to engine optimization.

Supplemental Keywords:

Scientific Discipline, Air, Toxics, Sustainable Industry/Business, air toxics, cleaner production/pollution prevention, Chemistry, HAPS, Technology for Sustainable Environment, New/Innovative technologies, Engineering, Engineering, Chemistry, & Physics, Nitrogen Oxides, Nox, air pollutants, control, emission control technologies, hydrocarbon, nitrogren oxides (NOx), novel catalyst systems, air pollution control, carbon monoxide (CO), emissions, air pollution, emission controls, catalytic coating, carbon monoxide, hydrocarbons, lean burn engine, catalytic combustion, nitrogen oxides (Nox), coatings, acid rain, engine

Progress and Final Reports:

  • Final