Patent ID: 6609505
Filing Date: 2003-08-26
Classification: F02B,F04D,Y10T

Abstract:
A system for variably controlling the rotational velocity input to a supercharger compressor that is operatively coupled to an internal combustion engine, the system comprising:an input member adapted to couple to a rotating member of the engine; a first planetary gear set including a first sun gear, a first ring gear, and a first planet carrier having a first set of plane gears mounted thereon and meshing with the first sun gear and the first ring gear, with one of the first sun gear, the first ring gear and the first planet carrier rotationally coupled to the input shaft; a clutch mechanism having a first portion that is rotationally fixed relative to the engine, and a second portion that is selectively rotationally fixed relative to the first portion, with the second portion being rotationally coupled to one of the first sun gear, the first ring gear and the first planet carrier that is not coupled to the input shaft; a one-way clutch coupled between one of the first sun gear, the first ring gear and the first planet carrier that is coupled to the input shaft, and another of the first sun gear, the first ring gear and the first planet carrier that is at coupled to the input shaft; a second planetary gear set including a second sun gear, a second ring gear and a second planet carrier having a second set of planetary gears mounted thereon and meshing with the second sun gear and the second ring gear, with one of the second sun gear, the second ring gear and the second planet carrier rotationally fixed to one of the first sun gear, the first ring gear and the first planet carrier that is not directly rotationally coupled to the input shaft; an output member adapted to couple to an input shaft to a supercharger and coupled to one of the second sun gear, the second ring gear and the second planet carrier; and a controller for selectively actuating the clutch mechanism.