YAJNANARAYANA HALMUTHUR JOIS
,
JOSEPH MICHAEL RUSSO
权利要求:
THAT WHICH IS CLAIMED IS:1. A fuel composition comprising:a fuel;a lubricity additive; andwherein the lubricity additive is selected from (1) 1-Lauroyl-rac-glycerol, (2)Dodecanamide, N-hydroxy-, or (3) 2-Ethylhexanoic acid.2. The fuel composition of claim 1, wherein the fuel is gasoline.3. The fuel composition of claim 1, wherein a concentration of the lubricity additive ranges from about 5 ppm to about 100 ppm by weight, based on a total weight of fuel composition.4. The fuel composition of claim 1, wherein the lubricity additive is soluble in the fuel.5. The fuel composition of claim 1, further comprising a friction coefficient ranging from 0.390 to 0.500 when 1-Lauroyl-rac-glycerol is the lubricity additive.6. The fuel composition of claim 1, further comprising a friction coefficient ranging from 0.360 to 0.515 when Dodecanamide, N-hydroxy- is the lubricity additive.7. The fuel composition of claim 1, further comprising a wear scar diameter ranging from 755 pm to 795 pm when 1-Lauroyl-rac-glycerol is the lubricity additive.8. The fuel composition of claim 1, further comprising a wear scar diameter ranging from 675 pm to 757 pm when Dodecanamide, N-hydroxy- is the lubricity additive.9. The fuel composition of claim 1, further comprising a friction coefficient ranging from 0.385 to 0.465 and a wear scar diameter of about 692 pm when 2-Ethylhexanoic acid is the lubricity additive.10. A method for improving lubricity of a fuel composition, the method comprising, providing a fuel;adding a lubricity additive to the fuel to produce the fuel composition; wherein the fuel is gasoline; andwherein the lubricity additive is selected from (l)l-Lauroyl-rac-glycerol, (2)Dodecanamide, N-hydroxy-, or (3) 2-Ethylhexanoic acid.11. The method of claim 10, wherein a concentration of the lubricity additive ranges from about 5 ppm to about 100 ppm by weight, based on a total weight of fuel composition.12. The method of claim 10, wherein the fuel composition comprises a friction coefficient ranging from 0.360 to 0.515 after adding the lubricity additive to the fuel.13. The method of claim 10, wherein the fuel composition comprises a wear scar diameter ranging from 675 pm to 795 pm after adding the lubricity additive to the fuel.14. A method for improving fuel performance of a direct injection engine, the method comprising,fueling the direct injection engine with a fuel composition comprising a fuel and a lubricity additive;operating the direct injection engine;wherein the fuel is gasoline; andwherein the lubricity additive is selected from (l)l-Lauroyl-rac-glycerol, (2)Dodecanamide, N-hydroxy-, or (3) 2-Ethylhexanoic acid.15. The method of claim 14, wherein the fuel composition comprises a friction coefficient ranging from 0.360 to 0.515 and a wear scar diameter ranging from 675 pm to 795 pm after blending the lubricity additive with the fuel.