Dual link internal combustion engine
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United States of America Patent
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Sep 1, 2015
Grant Date -
Nov 28, 2013
app pub date -
Apr 3, 2013
filing date -
May 23, 2012
priority date (Note) -
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Abstract
A dual link internal combustion engine, as viewed in a crank axial direction where a crankshaft rotates clockwise, has a following relative configuration. A piston pin center axis is offset to a right side of a piston center line extending through a center of a piston crest surface of a piston. A movement trajectory of a link coupling center of first and second links is positioned to a left side of a piston reciprocation line. A piston center of gravity is positioned to the left side. An average value of a distance in the cylinder axial direction to individual points of the piston crest surface from a reference plane passing through the piston pin center axis and orthogonal to the cylinder axial direction in an area to the left side is greater than an average value of the distance in an area to the right side.
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