Eight-speed transmission

Details Eight-speed transmission Eight-speed transmission

2008-03-19

2011-12-27

Lewis, Tisha (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S275000, C475S285000

Reexamination Certificate

active

08083632

ABSTRACT:
An eight speed transmission is provided having three planetary gear sets controlled by seven or optionally eight torque-transmitting mechanisms to provide eight forward speed ratios and a reverse speed ratio. The first planetary gear set is representable by a three-node first lever. The second and third planetary gear sets are interconnected such that they are representable by a four-node second lever.

REFERENCES:
patent: 4660439 (1987-04-01), Hiraiwa
patent: 5106352 (1992-04-01), Lepelletier
patent: 5133697 (1992-07-01), Hattori
patent: 5342258 (1994-08-01), Egyed
patent: 6669596 (2003-12-01), Sefcik
patent: 6723018 (2004-04-01), Hayabuchi et al.
patent: 7008346 (2006-03-01), Stevenson
patent: 7247119 (2007-07-01), Andres
patent: 7364526 (2008-04-01), Cho
patent: 2002266956 (2002-09-01), None

Affiliated with

Also associated with

Rating

Eight-speed 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 Eight-speed transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eight-speed transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4271023