Patent ID: 6629514
Filing Date: 2003-10-07
Classification: F01B,F02B

Abstract:
A piston mechanism for internal combustion engines, fluid motors and pumps comprising:(a) a single piston in a piston chamber wherein said piston is moveable in said chamber on an axis that is common to said piston and said chamber, (b) a rotatable drive shaft that has a drive shaft axis that is perpendicular to said chamber axis (c) a double eccentric drive perpendicular to said piston motion that is caused to rotate by means of a gear train that connects in such a manner to said piston and to said rotatable drive shaft as to convert the reciprocating action of said piston in said chamber to rotation of said drive shaft when said mechanism is a motor and to convert the rotation of said drive shaft to the reciprocating action to said piston in said chamber when said mechanism is a pump, (c) the position and attitude of said piston in said chamber is positively controlled by said gear train and is independent of the forces between said piston and said chamber.