F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
F02M 31/18 (2006.01) F02M 1/16 (2006.01) F02M 27/02 (2006.01) F02M 31/10 (2006.01)
Patent
CA 2160534
A method for controlling exhaust gas emissions from an engine (16) includes ex- tracting a light distillate fuel (Fd) from con- ventional gasoline or other liquid hydrocar- bon fuel and supplying the engine with the light distillate fuel during an initial opera- tion period of the engine. This reduces the oxidizable pollutants in the engine exhaust during a cold-start period before a catalytic converter (22) used to abate pollutants in the engine exhaust gases has not yet attained its operating temperature. After the catalytic converter (22) has been sufficiently heated, the fuel supply to the engine (16) is switched to gasoline or other liquid hydrocarbon fuel. Both the distillate fuel (Fd) and the liquid hydrocarbon fuel may be passed through a heated cracking catalyst bed (30) to crack the fuel fed to the engine.
Burk Patrick L.
Dettling Joseph C.
Steger John J.
Sung Shiang
Sim & Mcburney
The Engelhard Corporation
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