Multiple speed double planetary gear transmission

Details Multiple speed double planetary gear transmission Multiple speed double planetary gear transmission

1976-08-26

1979-03-06

Scott, Samuel

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74761, 74766, 74767, 74768, 74769, 192 85CA, F16H 5710

Patent

active

041424255

ABSTRACT:
A multiple speed gear transmission includes a pair of planetary gear arrangements connected in series, the output of the first connected to the input of the second. Each such planetary gear arrangement includes on the shafts of its planets, at least two different gear surfaces of different diameters, and in one embodiment three such gear surfaces are provided. A drive annular gear connects the input of each such arrangement to one of the gear surfaces; and at least two annular gears, i.e. sun gears or ring gears, are further connected with each planet gear for providing different forward drives and/or reverse drive. The planet carrier is connected to the output member of each arrangement. A direct drive clutch is provided for connecting the drive annular gear directly to the planet carrier for direct drive. In one embodiment the drive annular gear of the first arrangement is a ring gear and the drive annular gear of the second arrangement is a sun gear. In another embodiment, the drive annular gears of both arrangements are ring gears.

REFERENCES:
patent: 686471 (1901-11-01), Ough et al.
patent: 1654432 (1927-12-01), Rowledge
patent: 2214335 (1940-09-01), Kurti
patent: 2466320 (1949-04-01), Lawrence
patent: 2625057 (1953-01-01), Kelbel
patent: 2890603 (1959-06-01), Harris et al.
patent: 2971385 (1961-02-01), Miller
patent: 3144788 (1964-08-01), Wickman
patent: 3412834 (1968-11-01), Root
patent: 3424034 (1969-01-01), Wickman
patent: 3799003 (1974-03-01), VanDest

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-916134