Patent ID: 6766708
Filing Date: 2004-07-27
Classification: B60K,F16H,Y10T

Abstract:
A gear ratio multiplier comprising:an input shaft adapted for connection to a source of power for providing rotation and torque at a first speed; a first gear assembly connected to the input shaft, said first gear assembly comprising gears fixed in a meshed relationship with respect to one another, including at least one gear having teeth disposed at an angle to the axis of said at least one, said first gear assembly having an output with a lower rotational distance and higher torque than the rotational distance and torque of the input shaft; and a second gear assembly connected to the output of the first gear assembly, the second gear assembly comprising gears fixed in a meshed relationship with respect to one another, with the relative sizes of the gears in the second gear assembly being different from the relative size of the gears of the first gear assembly; and an output shaft driven by the second gear assembly, the output shaft having a speed greater than the speed of the input shaft and being adapted for connection to a device to be driven by the source of rotation and torque, wherein the first gear assembly comprises an input pinion gear and an input ring gear with the input ring gear having a larger pitch diameter and more teeth than the input pinion, and wherein the second gear assembly has an output ring gear with a pitch diameter greater than the pitch diameter of the input ring gear and with the output ring gear driving an output pinion gear connected to the output shaft, said output pinion gear having a pitch diameter greater than the pitch diameter of the input pinion gear.