| 摘要 |
A combustion chamber assembly for use in a diesel engine includes a combustion chamber (14) being defined in a crown (12) of a piston (10), the piston (10) having a central axis (16, 18, 518, 524), the combustion chamber (14) having a center portion defining a post, the center portion being defined at least in part by a portion of a sphere, the sphere having a radius, the origin of the radius lying on the piston central axis (16, 18, 518, 524) and the combustion chamber (14) further having a plurality of curved surfaces having smooth tangential transitions between adjacent smooth surfaces, the smooth surfaces including the spherical center portion and at least one annular surface, the combustion chamber (14) being symmetrical with respect to a combustion chamber longitudinal axis (16, 216, 316, 416). A piston (10) incorporating the aforementioned combustion chamber (14) and a method of forming the combustion chamber (14) are further included. |
