Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive
Patent
1996-04-29
1997-11-25
Ta, Khoi Q.
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
475271, 475282, 475290, F16H 366, F16H 136
Patent
active
056905785
ABSTRACT:
A planetary gear transmission has a single sun gear, two ring gears and a carrier assembly having a first pinion gear meshing with the sun gear and one ring, and a second pinion gear meshing with the first pinion gear and the second ring gear. The carrier assembly is continuously connected with a transmission output shaft. Input drive to the planetary gearing is provided through two selectively operable rotating clutches which are connectable with the sun gear and one ring gear, respectively. The sun gear and both ring gears are provided with selectively operable brakes for establishing reaction members within the planetary gear arrangement. In another embodiment of the planetary transmission, a second input drive path is provided through a third selectively operable rotating clutch which is connectable with the other ring gear. Selective control of the clutches and brakes permits the establishment of four forward drive ratios and a reverse ratio when two rotating input clutches are used and an additional plurality of ratios when the second input path and third input clutch are used.
REFERENCES:
patent: 2827805 (1958-03-01), Miller
patent: 4738162 (1988-04-01), Slotosch
patent: 5232418 (1993-08-01), Aoki et al.
patent: 5509865 (1996-04-01), Hall, III
General Motors Corporation
Scherer Donald F.
Ta Khoi Q.
LandOfFree
Ravigneaux planetary gear transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ravigneaux planetary gear transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ravigneaux planetary gear transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2102344