Patent ID: 6360715
Filing Date: 2002-03-26
Classification: F02B,F02F,Y02T

Abstract:
A combustion system for an engine having at least one cylinder, said system comprising:an intake duct; a combustion chamber delimited by a head portion and wall portion, and having a centerline; an intake valve arranged in a guide for reciprocating motion therein between open and closed configurations in which fluid communication between said intake duct and said combustion chamber is allowed and prohibited, respectively; a piston arranged for reciprocating motion within said combustion chamber, said piston having a crown provided with a cavity exposed to an interior space of said combustion chamber and said cavity being configured to enhance tumbling action inside said combustion chamber during an intake stroke of said combustion system and said cavity being further configured to breakdown said tumbling action into turbulence during a compression stroke of said combustion system; and said intake duct being configured so that a centerline of said intake duct is coincident with a centerline of said intake valve at a mouth into said combustion chamber for enhanced flow capacity from said intake duct into said combustion chamber.