C - Chemistry – Metallurgy – 10 – L
Patent
C - Chemistry, Metallurgy
10
L
C10L 10/04 (2006.01) C10L 1/08 (2006.01) C10L 1/12 (2006.01)
Patent
CA 2600244
A method of substantially removing, or reducing the occurrence of, injector deposits in a diesel engine operated using a diesel fuel containing a minor amount of a metal-containing species. The method comprises adding to the diesel fuel a salt formed by the reaction of a carboxylic acid with di-n-butylamine or tri-n-butylamine, wherein the diesel engine is equipped with fuel injectors having a plurality of spray-holes, each spray-hole having an inlet and an outlet, and wherein the fuel injectors have one or more of the following characteristics: (i) spray-holes which are tapered such that the inlet diameter of the spray- holes is greater than the outlet diameter; (ii) spray-holes having an outlet diameter of 0.10 mm or less; (iii) spray-holes where an inner edge of the inlet is rounded; (iv) 6 or more spray-holes; (v) an operating tip temperature in excess of 250°C. The use of the salt to substantially remove, or reduce the occurrence of, injector deposits is also described.
Breakspear Angela Priscilla
Caprotti Rinaldo
Borden Ladner Gervais Llp
Infineum International Limited
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