Air-cooled internal combustion engine having canted combustion c

Details Air-cooled internal combustion engine having canted combustion c Air-cooled internal combustion engine having canted combustion c

1989-10-02

1990-12-18

Okonsky, David A.

Internal-combustion engines

Cooling

Air-cooled

123 65VD, 123 9023, 123658, 123179SE, 123195HC, F02F 106, F02F 130

Patent

active

049778633

ABSTRACT:
An air-cooled internal combustion engine, a crankshaft and a camshaft rotatably journalled in the crankcase parallel to one another, and a cast intake valve chamber and cast exhaust valve chamber each cast integrally with the cylinder and communicating with the combustion chamber via a respective intake valve port and exhaust valve port. Intake and exhaust valves are disposed for reciprocation in a direction lying perpendicular to the camshaft and simultaneously in a direction lying at an acute angle to a plane passing through the longitudinal axis of the cylinder and parallel to the axis of the camshaft. An intake cross-over manifold is cast integrally with the cylinder and is delimited by interior walls which are substantially straight in longitudinal direction from a fuel/air intake port to a point of intersection with the intake valve chamber.

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patent: 4494490 (1985-01-01), Kiyooka et al.
patent: 4548167 (1985-10-01), Tamba et al.
patent: 4570584 (1986-02-01), Uetsuji et al.
patent: B14570584 (1988-03-01), Uetsuji et al.
patent: 4811705 (1989-03-01), Ono et al.

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