Patent ID: 6851401
Filing Date: 2005-02-08
Classification: F01B,F02B,F02F,F16H

Abstract:
1. A device for converting a rectilinear movement into a rotary movement, said device comprising a crankshaft and one or more piston-cylinder mechanisms, each piston cylinder mechanism having a cylinder, a piston and a connecting rod connecting the piston to the crankshaft such that said piston is moveably arranged in the cylinder for rectilinear movement along an axis of movement to cause said crankshaft to effect said rotary movement, wherein the crankshaft has a center of rotation which is arranged displaced at a displacement distance of greater than or equal to 0.01 multiplied by the length of the piston stroke from the axis of movement of the or each piston and that the crankshaft has a direction of rotation that is clockwise when looking at the device in the longitudinal direction of the crankshaft and with the device oriented so that the or each cylinder is located above the crankshaft and displacement of the center of rotation of the crankshaft is to the right of the axis of movement of the or each piston, wherein improved torque is provided in an early portion of the cycle after top dead center for higher performance.