Method of conditioning diesel engines

Details Method of conditioning diesel engines Method of conditioning diesel engines

1980-06-04

1983-06-21

Warren, Charles F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 68, 123569, 123 1A, 123198A, C10L 108

Patent

active

043892205

ABSTRACT:
A method of conditioning diesel engines is described. In accordance with the method, a diesel engine is operated on a diesel fuel containing from about 20-30 ppm of dicyclopentadienyl iron or an equivalent amount of a derivative thereof for a period of time sufficient to eliminate carbon deposits from the combustion surfaces of the engine and to deposit a layer of iron oxide on the combustion surfaces, which layer is effective to prevent further buildup of carbon deposits, and subsequently the diesel engine is operated on a maintenance concentration of from about 10-15 ppm of dicyclopentadienyl iron or an equivalent amount of a derivative thereof on a continuous basis. The maintenance concentration is effective to maintain the catalytic iron oxide layer on the combustion surfaces but insufficient to decrease timing delay in the engine.

REFERENCES:
patent: 2791597 (1957-05-01), Anzilotti et al.
patent: 3144857 (1964-08-01), Hesselberg
patent: 3294685 (1966-12-01), Stevens et al.
patent: 3341311 (1967-09-01), Pedersen
patent: 3535356 (1970-10-01), Hartle et al.
patent: 4002151 (1977-01-01), Toyoda et al.
patent: 4161160 (1979-07-01), Hicks et al.

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