Speed responsive locking drive belt tensioner for an automotive

Details Speed responsive locking drive belt tensioner for an automotive Speed responsive locking drive belt tensioner for an automotive

1997-07-28

1999-02-23

Bonck, Rodney H.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Guide roll mounted for movement of its axis along arcuate...

474101, 474133, F16H 712

Patent

active

058737995

ABSTRACT:
An accessory belt tensioner of an automotive engine includes a hub adapted to be fixed to an engine, an arm journaled upon the hub, a tensioner pulley mounted upon the arm, and a torsion spring interposed between the arm and hub. An antirotation lock incorporated within the arm and pulley locks the arm to the hub whenever the rotational speed of the pulley exceeds a predetermined threshold.

REFERENCES:
patent: 3012445 (1961-12-01), Becker et al.
patent: 4557709 (1985-12-01), St. John
patent: 4822322 (1989-04-01), Martin
patent: 4906222 (1990-03-01), Henderson
patent: 4934988 (1990-06-01), Kawamura et al.
patent: 5597060 (1997-01-01), Huddleston et al.

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