Method for Reducing Cold-Start Hydrocarbon Emissions in a Gasoline, Natural Gas, or Propane Fueld Engine

Abstract

A partial oxidation catalyst is interposed between an exhaust manifold and a catalytic converter in the exhaust system of a gasoline, natural gas, or propane fueled engine. The engine is started from a cold-start and the exhaust gas stream emitted during an initial period of operation after the cold-start has a .lambda. value

Patent Number
6,244,044
Date Of Issue
Inventors

Gordon J. Bartley