Self-energizing synchronizer including force limiting

Details Self-energizing synchronizer including force limiting Self-energizing synchronizer including force limiting

1997-08-11

1999-09-28

Marmor, Charles A.

192 clutches and power-stop control

Clutches

Progressive engagement

192 53332, 74339, F16D 2306

Patent

active

059572574

ABSTRACT:
A pin-type, double acting synchronizer (18) with friction clutches (22,36 and 24,38), jaw clutches (26,30 and 28,31), a shift flange (32), self-energizing ramps (21a-21d) affixed to a shaft (12), and self-energizing ramps (45a-45d) affixed to a self-energizer member (34). Engagement of the ramps provides an additive axial force (F.sub.a) for increasing the engagement force of the friction clutches. The member (34) is secured for sliding movement with the flange and jaw members (30,31). The member (34) is resiliently connected for rotation with the flange by force limiting detent assemblies (50) until synchronizing torque reaches a predetermined amount. When the predetermined torque is reached, the force limiting assemblies allow the flange to rotate and engage stops (32h) for directing all torque in excess of the predetermined amount to the shaft in parallel with the self-energizing ramps.

REFERENCES:
patent: 2333165 (1943-11-01), Fishburn
patent: 2369843 (1945-02-01), Neracher et al.
patent: 2410511 (1946-11-01), Letsinger et al.
patent: 3450240 (1969-06-01), Lewis et al.
patent: 4811825 (1989-03-01), Christian et al.
patent: 5078245 (1992-01-01), Nellums et al.
patent: 5092439 (1992-03-01), Reynolds
patent: 5141087 (1992-08-01), Reynolds
patent: 5558194 (1996-09-01), Cox

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