| 摘要 |
A baulkring-type synchronizer (18) includes multiple cone friction surfaces (28a, 36a 32a 36b and 30a, 38a, 34a, 38b) and jaw clutch spline teeth (26a, 20a, 22a) for frictionally synchronizing and positive connecting gears (14,16) to a shaft (12). Inner rings 32, 34 respectively define the friction surfaces (32a, 34a) and ramp surfaces (32b, 34b) that move a boost member 42 radially outward to engage self-energizing surfaces (44c, 26g and 44d, 26f) to provide additive self-energizing forces in response to limited rotation of the inner rings by synchronizing torque.
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