Multi-speed transmission

Details Multi-speed transmission Multi-speed transmission

2008-05-12

2011-10-11

Le, David D (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S317000

Reexamination Certificate

active

08033947

ABSTRACT:
A transmission is provided having an input member, an output member, four planetary gear sets each having a first, a second, and a third members, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices are each selectively engageable to interconnect at least one of the first, second, and third members of the planetary gear sets with at least one other of the first members, second members, third members of the planetary gear sets, and a stationary member. The torque transmitting devices are selectively engageable in combinations of at least two to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member.

REFERENCES:
patent: 6176803 (2001-01-01), Meyer et al.
patent: 6558287 (2003-05-01), Hayabuchi et al.
patent: 6984187 (2006-01-01), Biermann
patent: 6991578 (2006-01-01), Ziemer
patent: 7011597 (2006-03-01), Haka
patent: 7018319 (2006-03-01), Ziemer
patent: 7101305 (2006-09-01), Tabata et al.
patent: 7163484 (2007-01-01), Klemen
patent: 7311635 (2007-12-01), Klemen
patent: 2005/0090362 (2005-04-01), Abe et al.
patent: 2005/0282680 (2005-12-01), Soh
patent: 2006/0052213 (2006-03-01), Park
patent: 2006/0142112 (2006-06-01), Kamada et al.
patent: 2006/0270513 (2006-11-01), Klemen
patent: 2006/0270516 (2006-11-01), Klemen

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4260714