Importance

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Abstract

A cylinder is configured for use with a piston that moves through compression and combustion strokes between top and bottom positions in an internal combustion engine. The cylinder defines a bore in which the piston moves between the top and bottom positions. The bore has a transfer port and an exhaust port. The cylinder can have interconnected parts that together define the bore. Those parts can include a first part that reaches along the bore upward from the transfer port beside the top position of the piston, and a second part that reaches along the bore downward from the transfer port beside the bottom position of the piston. The sectional lengths of the first and second parts provide greater access for manufacturing at the bore, the transfer port, and the exhaust port.

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First Claim