Fuel injection method for a direct-injection auto-ignition internal-combustion engine
AssigneeIfp
InventorJulian Kashdan
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Abstract
The present invention is a fuel injection method for a direct-injection internal-combustion engine, preferably of diesel type, comprising a cylinder (10) closed by a cylinder head (16), a piston (12) comprising a bowl (18), and a fuel injector (48). The method feeds the fuel into a bowl coated with a thermal insulation coating in at least two successive injections in quick succession to achieve low-temperature combustion of the fuel mixture.
Claims20
A method of direct fuel injection for an internal-combustion engine, including a cylinder closed by a cylinder head, a piston comprising a bowl having a thermal insulation coating and a fuel injector, the method comprising feeding fuel into the bowl in at least two successive injections to create a combustible fuel mixture with a delay between successive injections corresponding to a crankshaft rotation angle ranging between 1° and 10° measured between an end of an injection and a start of a next injection.
Dependencies are inferred from the claim text.