COMBUSTION SYSTEM FOR AN ENGINE HAVING A SWIRL INDUCING COMBUSTION CHAMBER

摘要

A combustion chamber of an internal combustion engine includes a contoured surface that defines a plurality of deflection foils. The contoured surface distributes fuel spray into portions directed toward one of the deflection foils. Each deflection foil re-directs their respective portion of the fuel spray into a combined radial path that swirls about a center of the combustion chamber. Each of the deflection foils defines a flow path and a foil axis. The flow path includes an entrance segment and an exit segment. The entrance segment directs a portion of the fuel spray radially away from the center of the combustion chamber, and the exit segment directs the portion of the fuel spray substantially tangential relative to the combined radial path of the re-directed portions of the fuel spray.

主权项

1. An internal combustion engine comprising:
an engine assembly defining a bore extending along a central bore axis; a piston disposed within the bore and moveable in a reciprocating motion within the bore along the central bore axis; wherein the piston and the engine assembly cooperate to define a combustion chamber; a direct injection fuel system having a fuel injector for injecting a fuel spray into the combustion chamber along a path; wherein the combustion chamber includes a contoured surface defining a plurality of deflection foils; and wherein the contoured surface receives and re-distributes the fuel spray into a plurality of portions, with each portion of the fuel spray directed toward one of the plurality of deflection foils, and with each of the plurality of deflection foils re-directing their respective portion of the fuel spray into a combined radial path swirling about a center of the combustion chamber.