Multi-speed power transmission

Details Multi-speed power transmission Multi-speed power transmission

2007-10-23

2007-10-23

Estremsky, Sherry (Department: 3681)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S277000, C475S286000, C475S288000

Reexamination Certificate

active

11238394

ABSTRACT:
A powertrain incorporates a multi-speed planetary transmission having four planetary gearsets and seven torque-transmitting mechanisms. The planetary gearsets are interconnected and controlled by the torque-transmitting mechanisms in combinations of two, such that eight forward speeds and three reverse speeds are developed between an input shaft and an output shaft of the transmission.

REFERENCES:
patent: 4038888 (1977-08-01), Murakami et al.
patent: 4046031 (1977-09-01), Ott et al.
patent: 4395925 (1983-08-01), Gaus
patent: 4531428 (1985-07-01), Windish
patent: 4683776 (1987-08-01), Klemen
patent: 6176803 (2001-01-01), Meyer et al.
patent: 6976930 (2005-12-01), Winzeler
patent: 7128683 (2006-10-01), Oguri et al.
patent: 7163484 (2007-01-01), Klemen
patent: 7204780 (2007-04-01), Klemen
patent: 2004/0048716 (2004-03-01), Ziemer
patent: 2007/0072732 (2007-03-01), Klemen

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3889294