F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
F02B 75/04 (2006.01) F02B 41/04 (2006.01) F02B 75/16 (2006.01)
Patent
CA 2422663
The present invention relates to an engine in which the stroke of a piston at an expansion stroke is larger than that at a compression stroke. In order to ensure that a top dead center at each of intake and exhaust strokes and a top dead center at the compression stroke are at the same level, the following dimensions are determined according to an equation representing a level of a piston pin, so that the top dead center at each of the intake and exhaust strokes and the top dead center at the compression stroke are congruous with each other: a length of a second arm; a length of a first arm; a length of a control rod; a length of a connecting rod; a length from an axis of a crankshaft to axes of rotary shafts in a direction of a y-axis; a length from the axis of the crankshaft to the axes of the rotary shafts in a direction of an x-axis; an amount of offsetting of a cylinder axis from the axis of the crankshaft in the direction of the y-axis; an angle formed by the first and second arms; a length between the axis of the crankshaft and the crankpin; a length of a straight line connecting the axes of the rotary shafts: and an axis of a movable eccentric shaft and an angle when a crank angle is "0".
Honda Giken Kogyo Kabushiki Kaisha
Smart & Biggar
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