Engagement device in automatic transmission

Machine element or mechanism – Gearing – Plural power paths to and/or from gearing

Patent

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Details

74695, 188 716, 188264E, F16H 5710, F16H 3708, F16D 6578

Patent

active

043801790

ABSTRACT:
In an automatic transmission including sun gears, ring gears and a carrier for rotatably supporting a pinion on a shaft, the pinion being adapted to mesh with the sun gear and the ring gear; the improvements comprising a hub extending radially outside of the ring gear and having a friction surface in part of the outer peripheral wall thereof and external spline teeth provided in the other part of the outer peripheral wall, the hub being attached to the carrier; a friction element adapted to engage a cylindrical outer race fitted on internal spline-teeth of a transmission housing and the friction face of the hub; a plurality of first friction plates axially, slidably fitted on the external spline teeth of the hub; and a plurality of second friction plates axially, slidably fitted on the internal spline-teeth of the transmission housing, the first and second friction plates disposed one after another.

REFERENCES:
patent: 3741037 (1973-06-01), Piret
patent: 4304153 (1981-12-01), Moroto et al.
patent: 4315443 (1982-02-01), Kubo et al.

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