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A combustion chamber assembly for use in a piston of a diesel engine includes a combustion chamber being defined in a crown of a piston, the combustion chamber having a center portion, the center portion being defined at least in part by a surface being a portion of a convex sphere to define a post,

A combustion chamber assembly for use in a piston of a diesel engine includes a combustion chamber being defined in a crown of a piston, the combustion chamber having a center portion, the center portion being defined at least in part by a surface being a portion of a convex sphere to define a post, the sphere having a radius and an origin, the origin of the radius lying on a combustion chamber central axis and the combustion chamber further having an outwardly radially disposed sidewall margin, the sidewall margin being defined in part by an annular surface, the annular surface being concave and having an origin and a radius. The combustion chamber is further defined by an annular bowl lip surface. A piston and a method of forming a combustion chamber are further included.

대표청구항 ▼

A combustion chamber assembly for use in a piston of a diesel engine includes a combustion chamber being defined in a crown of a piston, the combustion chamber having a center portion, the center portion being defined at least in part by a surface being a portion of a convex sphere to define a post,

A combustion chamber assembly for use in a piston of a diesel engine includes a combustion chamber being defined in a crown of a piston, the combustion chamber having a center portion, the center portion being defined at least in part by a surface being a portion of a convex sphere to define a post, the sphere having a radius and an origin, the origin of the radius lying on a combustion chamber central axis and the combustion chamber further having an outwardly radially disposed sidewall margin, the sidewall margin being defined in part by an annular surface, the annular surface being concave and having an origin and a radius. The combustion chamber is further defined by an annular bowl lip surface. A piston and a method of forming a combustion chamber are further included. 6132146, 20001000, Satran et al.; US-6134996, 20001000, Scheer et al.; US-6158311, 20001200, Watkins et al.; US-6163950, 20001200, Bodiker et al., 029/559; US-6196769, 20010300, Satran et al.; US-6196773, 20010300, Hyatt et al.; US-6224306, 20010500, Hiroumi et al.; US-6231276, 20010500, Muller et al.; US-6231282, 20010500, Yoneyama et al.; US-6315503, 20011100, Oswald et al.; US-6354772, 20020300, Mueller; US-6367359, 20020400, Ropos; US-20010028832, 20011000, Soma