Gear driven power converter

A compact rotational power coupling apparatus for converting a first rotational power input and a second rotational power input to a rotational power output along an output shaft, the rotational power coupling apparatus comprising:

• a first rotational body rotated by the first power input at a first speed, the first rotational body including a first gear including an inside face and a first outside face;
• the first gear comprising:
• a ring body;
• an outside ring face fixed to the ring body;
• and
• an inside ring face coupled to the ring body;
• a second rotational body adapted to rotate independently of the first rotational body, the second rotational body rotated by the second power input at a second speed;
• at least one rotational comparator body coupled to the first rotational body, the output shaft, and the second rotational body such that any speed difference between the first speed and the second speed causes a proportional rotation in the comparator body as the rotational vower output;
• and
• wherein the second rotational body rotates about the comparator body and the output shaft.

A power coupling apparatus for a vehicle adapted to selectively and controllably transfer a rotational power input to a rotational output shaft, the power coupling comprising:

• a first variable transmission adapted to convert the rotational power input to a first power input and a second power input;
• a first gear coupled to the first power input, the first gear including an inside tooth set;
• a mounting body coupled to the second power input and adapted to rotate around a first axis, the mounting body including at least one mounting location defining a distal second axis rotating around the first axis;
• at least one second gear rotationally mounted to the mounting body at the second axis and coupled to the first gear, the second gear coupled to the rotational output shaft to rotate the output shaft as a ratio of the speed difference between the first gear and the mounting body, the second gear including a differential tooth set coupled to the inside tooth set;
• wherein the first gear rotates about the second gear;
• and
• wherein the output shaft is adapted to rotate around the first axis, the output shaft defining a shaft tooth set coupled to the differential tooth set.