Multi-speed transmission with stacked planetary gear sets

Details Multi-speed transmission with stacked planetary gear sets Multi-speed transmission with stacked planetary gear sets

2009-01-29

2011-10-25

Wright, Dirk (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S903000

Reexamination Certificate

active

08043190

ABSTRACT:
A multi-speed transmission is provided that has three planetary gear sets that have a plurality of members positioned to establish only two gear planes. Six torque-transmitting mechanisms are selectively engagable in different combinations to connect different members of the planetary gear sets with an input member, an output member, a stationary member, and one another to establish seven forward speed ratios and a reverse speed ratio. One of the gear planes is established by the first and the second planetary gear sets. The second planetary gear set is positioned concentric with and radially-outward of the first planetary gear set, and the first and second planetary gear sets share a member.

REFERENCES:
patent: 2478869 (1949-08-01), Hasbany
patent: 4229996 (1980-10-01), Hildebrand
patent: 5429557 (1995-07-01), Beim
patent: 5919111 (1999-07-01), Park
patent: 5993347 (1999-11-01), Park
patent: 6652409 (2003-11-01), Kao et al.
patent: 6679802 (2004-01-01), Raghavan et al.
patent: 2009/0005209 (2009-01-01), Phillips

Affiliated with

Also associated with

Rating

Multi-speed transmission with stacked planetary gear sets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-speed transmission with stacked planetary gear sets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-speed transmission with stacked planetary gear sets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4273116