192 clutches and power-stop control – Clutches – Progressive engagement
Patent
1990-12-24
1992-02-11
Braun, Leslie A.
192 clutches and power-stop control
Clutches
Progressive engagement
192 53F, F16D 2306
Patent
active
050868977
ABSTRACT:
A pin-type, double-acting synchronizer mechanism (22) with friction clutches (24,36 and 26,38), jaw clutch 28,14b and 30,16b) and self-energizing ramps. The ramps act between a shaft (12) and a shift flange (32) which is rotatable relative to the shaft and jaw clutch members 28,30. Flange 32 includes radially inwardly extending teeth (32k) defining self-energizing ramps (32m,32n,32p,32s) which act against ramp (12d,12e,12f,12g) formed in shaft splines (12b). Three circumferentially spaced pins (40) include blocker shoulders (40c,40d) for preventing asynchronous engagement of the jaw clutches and pre-energizer surfaces (40e,40f) which each cooperate with a pre-energizer and neutral centering assembly 42. The angles of the self-energizing ramps may be varied to provide substantially the same synchronizing time for several or all of the ratio gears in a multi-ratio transmission.
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Braun Leslie A.
Eaton Corporation
Pitts Andrea
Rulon P. S.
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