Variable eccentricity assembly

A variable eccentricity assembly consisting of at least two eccentric parts, a mechanism, at least one shaft and an output component that relatively revolves around the shaft axis with a radius equal to the eccentricity obtained from the assembly;

• wherein each eccentric part has first axis about which it can revolve, and has a second axis for external surface, a portion of which is a surface of revolution formed by revolving a curve around the second axis;
• wherein eccentric parts are arranged in such a way that first axis of one eccentric part is aligned with second axis of an adjacent eccentric part;
• wherein inner most eccentric part is connected to a shaft and the outer most eccentric part is connected to an output component;
• wherein the mechanism rotates one eccentric part with respect to another eccentric part as to change relative angular position of the eccentric parts and thus change distance between shaft axis and the second axis of outer most eccentric part, which is the overall eccentricity of the variable eccentricity assembly.

A variable eccentricity assembly which consists of at least one shaft, one output component, one circular disc and a mechanism;

• wherein the circular disc is mounted on the output component as to rotate with respect to it;
• the disc is also mounted on the shaft through the mechanism to move the disc with respect to the shaft axis;
• wherein the disc has a portion of the external surface as a surface of revolution formed by revolving a curve around an axis;
• distance between the axis and shaft axis is the overall eccentricity of the assembly;
• wherein the mechanism moves the disc in a direction normal to the shaft axis as to change overall eccentricity of the assembly.