| 摘要 |
<p>CONSTANT LOAD SYNCHRONIZER WITH PRIMARY AND SECONDARY FRICTION SURFACES A synchromesh arrangement suitable for heavy-duty applications includes a sliding-sleeve clutch formed with detent recesses of predetermined ramp angle, and spring-loaded detent balls cooperate with the respective detent recesses for constant-load energization of a ring-type primary synchronizer element. This develops a synchronizing drag torque component at an intermediate element which, by the action of a pair of ramp surfaces cooperating via rollers, thereby produces a clamping action at a plate-type secondary synchronizer element of high drag torque-inducing capacity. Any excess loading on the clutch is taken direct on to balking teeth of the secondary synchronizer element, whereby the primary synchronizer element is protected from overloading.</p> |
