A piston and combustion engine

Details A piston and combustion engine A piston and combustion engine

F - Mech Eng,Light,Heat,Weapons

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F01B 9/04 (2006.01) F01B 3/00 (2006.01) F02B 75/20 (2006.01) F02B 75/24 (2006.01) F16J 1/24 (2006.01) F02B 75/02 (2006.01)

Patent

CA 2161794

An internal combustion engine having at least one cylinder and reciprocating means comprising pistons which are slidable in said cylinders, said reciprocating means and pistons having a common axis, a pair of rotors mounted on opposite sides of the axis at said reciprocating means to rotate about a common axis perpendicular to the axis at said reciprocating means in opposite directions and in counter phase, connecting means extending from opposite sides of said reciprocating means and engaging one of said rotors at a distance from their common axis characterized in that a bearing connection is provided between at least a portion of the piston, which is in contact with the wall of the cylinder, and the connecting means, allowing the piston or at least a portion of the piston to be freely rotatable about its axis. This reduces the wear on the cylinder wall caused by the compression rings near the top dead center of the piston.

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