PISTON AND COMBUSTION CHAMBER

摘要

A piston and an engine are provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of the combustion chamber features, resulting in a combustion process that yields improved mixing of fuel and intake air and increased uniformity of load on the engine pistons. The piston provides a piston bowl with a concave curvilinear portion that may be semi-spherical and extends inwardly to a depth; an angled surface extends inwardly from the crown surface to intersect the concave curvilinear portion at an edge at a depth; and a curved surface that extends inwardly from the crown surface to intersect the concave curvilinear portion at a tangent at a depth. The angled surface may be part of a frusto-conical surface that may extend from both sides of the angled surface to an area proximate the curved surface.