Prevention of fouling in internal combustion engines and their e

Details Prevention of fouling in internal combustion engines and their e Prevention of fouling in internal combustion engines and their e

1980-05-27

1987-06-23

Cross, E. Rollins

Internal-combustion engines

Miscellaneous

Fuels, lubricants and additives

123198A, 44 68, F02B 7512

Patent

active

046744479

ABSTRACT:
Processes for operating gasoline engines with spark plug ignition of gasolines containing manganese compound additives such as pentadienyl manganese tricarbonyl (MMT), the gasoline being essentially free of lead, sodium and barium compounds, thereby avoiding fouling of the spark plugs with glass-like deposits formed from the oxide reaction products of sodium or barium and manganese; the lubricating oils in the crankcase of said engines being essentially free from lead, sodium and barium compounds; processes for operating gasoline engines having an exhaust system with a catalytic converter for conversion of hydrocarbon emissions and carbon monoxide emissions to water and carbon dioxide with the same types of gasolines, and preventing fouling of the catalyst in said converter by glass-like deposits formed thereon by oxidation products of sodium and/or barium compounds with manganese by operating said engine in the absence of lead, sodium and barium compounds in the combustion chambers of the engine, its exhaust system, and the crankcase lubricating oils; and gasoline fuels for internal combustion engines containing a small amount of a manganese compound additive, e.g., MMT, said gasoline being essentially free of lead, sodium and barium compounds.

REFERENCES:
patent: 2818417 (1957-12-01), Brown et al.
patent: 3110577 (1963-11-01), Brown et al.
patent: 3127351 (1964-03-01), Brown et al.
patent: 3996740 (1976-12-01), Niebylski

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