Composition and method for preventing or reducing low speed pre-ignition in spark-ignited internal combustion engines
OwnerRichard Eugene Cherpeck, Amir Gamal Maria +2inventors
InventorsRichard Eugene Cherpeck, Amir Gamal Maria, Ian G. Elliott, Theresa Liang Gunawan
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Abstract
Fuel and lubricant compositions are provided that contain a primary low-speed pre-ignition (LSPI)-reducing additive comprising (i) an amino additive, (ii) an amine additive, (iii) a triazole additive, (iv) a benzamidinium additive, (v) a benzoxazole additive, or (vi) a N═C—X motif additive. Methods for preventing or reducing low speed pre-ignition events in spark-ignited engines using these compositions are also provided.
Claims39
A fuel composition comprising (1) greater than 50 wt % of a hydrocarbon fuel boiling in the gasoline or diesel range and (2) a minor amount of one or more of:
- a primary low-speed pre-ignition (LSPI)-reducing additive comprising (i) an amino additive, (ii) an amine additive, (iii) a triazole additive, (iv) a benzamidinium additive, (v) a benzoxazole additive, or (vi) a N═C—X motif additive having a structure of
- wherein X1 and X2 are independently H, C, N, O, or S;
- and
- wherein X1 or X2 independently includes one or more C1-C20 alkyl group or one or more aromatic group.
A fuel concentrate comprising (1) from 90 to 30 wt % of an organic solvent boiling in a range of from 65° C. to 205° C. and (2) from 10 to 70 wt % of an additive component selected from one or more of
- (i) an amino additive, (ii) an amine additive, (iii) a triazole additive, (iv) a benzamidinium additive, (v) a benzoxazole additive, or (vi) a N═C—X motif additive having a structure of
- wherein X1 and X2 are independently H, C, N, O, or S;
- and
- wherein X1 or X2 independently includes one or more C1-C20 alkyl group or one or more aromatic group.
A lubricating oil composition comprising (1) greater than 50 wt % of a base oil and (2) 0.01 to 15 wt % of a component selected from one or more of
- a primary low-speed pre-ignition (LSPI)-reducing additive comprising (i) an amino additive, (ii) an amine additive, (iii) a triazole additive, (iv) a benzamidinium additive, (v) a benzoxazole additive, or (vi) a N═C—X motif additive having a structure of
- wherein X1 and X2 are independently H, C, N, O, or S;
- and
- wherein X1 or X2 independently includes one or more C1-C20 alkyl group or one or more aromatic group.
Dependencies are inferred from the claim text.