Combustion system for an engine having multiple fuel spray induced vortices

摘要

An internal combustion engine includes an engine assembly that defines a bore, and a piston disposed and moveable within the bore. The piston and the engine assembly cooperate to define a combustion chamber therebetween. A direct injection fuel system directs a fuel spray into the combustion chamber along a linear path. The combustion chamber includes a contoured surface having a plurality of annular recesses. The contoured surface divides and re-directs the fuel spray from the linear path into each of the annular recesses to form a plurality of independent rotating vortices.

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 configured for reciprocating movement 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 configured for injecting a fuel spray into the combustion chamber along a linear path; and wherein the combustion chamber includes a contoured surface defining a plurality of annular recesses configured for re-directing the linear path of the fuel spray into a plurality of independent rotating vortices, with each of the plurality of independent rotating vortices rotating about a respective rotation axis that is generally parallel with the central bore axis.