Axial flow cooling for air-cooled engines

Details Axial flow cooling for air-cooled engines Axial flow cooling for air-cooled engines

2007-09-24

2009-11-17

Huynh, Hai H (Department: 3747)

Internal-combustion engines

Cooling

Air-cooled

Reexamination Certificate

active

07617804

ABSTRACT:
A head for an air-cooled engine having at least two cylinders, each cylinder having a longitudinal axis, the head having a rocker arm mounted to rotate about a rocker arm axis in the head, the head further including an intake port and an exhaust port, and the head mounted on a first cylinder of the two cylinders to define a combustion chamber, the head having at least two fins, each fin having a height-to-thickness ratio of greater than or equal to 5, each fin having a length that is at least 5 times the distance between the at least two fins at a location on the head that is between the first cylinder and the rocker arm axis on the head, and each fin positioned on the head with the fin length oriented along an axis that is substantially parallel to the longitudinal axis of the first cylinder.

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Angle, Glenn D., Aerosphere • 1939, Aircraft Publications, New York, NY, 1940, p. 39.

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