AIR-COOLED, FOUR-STROKE AVIATION ENGINE
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United States of America Patent
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Issued Date -
Oct 10, 2024
app pub date -
Jun 17, 2024
filing date -
Jul 27, 2021
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Abstract
An improved air-cooled aviation engine includes a compact combustion chamber having an intake valve opening, an exhaust valve opening, and a generally elliptical shape. The elliptical shape has a major axis and a minor axis, with the major axis intersecting both the intake valve opening and the exhaust valve opening. In some examples, the major axis is the same length or shorter than a diameter of a cylinder bore of the engine, and the minor axis is smaller than the major axis. Combustion is thus constrained to a smaller area than that of the cylinder bore.
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