| 摘要 |
A combustion chamber of an internal combustion engine includes a co-axial valve mechanism with a hemispherically concave exhaust valve disk actuated by a single overhead camshaft. A piston face is provided including an offset shallow bowl for accommodating the spark gap of a spark plug when the piston is at top dead center and at least one groove situated at least partially about the shallow bowl. The co-axial valve mechanism and piston face configuration results in more complete combustion and greater power development. |
