ENGINE OPERABLE IN HORIZONTAL AND VERTICAL SHAFT ORIENTATIONS
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United States of America Patent
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Jun 22, 2017
app pub date -
Dec 18, 2015
filing date -
Dec 18, 2015
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Abstract
A small air-cooled internal combustion engine includes an aluminum engine block including a cylinder, a crankcase reservoir, and an outer surface, a piston positioned within the cylinder and configured to reciprocate within the cylinder, and a crankshaft coupled to the piston and configured to rotate about a crankshaft axis, wherein a portion of the crankshaft is located in the crankcase reservoir, where the outer surface of the engine block has an edge located a radial distance from the crankshaft axis and the radial distance is less than less than a standard minimum distance between the crankshaft axis and a horizontal mounting surface for a standard garden mounting flange for a horizontally-shafted engine.
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