Patent ID: 6220984
Filing Date: 2001-04-24
Classification: F16H

Abstract:
The planetary gear having a sun gear (2) connected with a driven central shaft (20) defining an axis (44), a ring gear (12), a group of first stepped planetary gears (8, 10) each having a large and a small gear, a group of second stepped planetary gears (4, 6) each having a large and a small gear wherein all stepped planetary gears are supported in a common planet carrier (24), the number of the second stepped planetary gears (4, 6) corresponding to a half the number of the first stepped planetary gears (8, 10), the large gears (4) of said second stepped planetary gears engage said sun gear (2), the small gears (6) of said second stepped planetary gears engage simultaneously one pair of adjacent large gears (8) of said first stepped planetary gears, all small gears (10) of said first stepped planetary gears engage said ring gear (12), said planet carrier (24) being a supporting element for said first and second stepped planetary gears (4, 6, 8, 10) and said ring gear (12) being an output gear.