Apparatus for tensioning of a cam shaft drive

Details Apparatus for tensioning of a cam shaft drive Apparatus for tensioning of a cam shaft drive

1994-09-27

1997-01-28

Matecki, Katherine

Endless belt power transmission systems or components

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

Tension adjuster or shifter driven by electrical or fluid motor

474111, F16H 708

Patent

active

055973671

ABSTRACT:
An apparatus having two pistons journalled elastically yieldable counter to tensioning direction. As a consequence of double-acting construction, impacts or shocks of an endless drive and with that wear of a primary-side drive element, that is that of a tooth belt or chain connecting the crank shaft with the cam shaft can be avoided. If during operation of the apparatus moreover shocks or impacts arise and occur in the endless drive, then the pistons can yield elastically so that tensioning shoes fastened on the pistons are not subject to any increased wear. As a consequence of resilient damping of the shocks or impacts, the entire apparatus is also less strongly burdened and loaded so that a long life expectancy is assured. As a consequence of the elastically yieldable journalling, the pistons are always again loaded into the tensioning positioning thereof so that the tensioning of the endless drive is not influenced thereby.

REFERENCES:
patent: 2963918 (1960-12-01), Blakstad
patent: 3964331 (1976-06-01), Oldfield
patent: 5109813 (1992-05-01), Trzmiel et al.
patent: 5117786 (1992-06-01), Trzmiel et al.
patent: 5120278 (1992-06-01), Trzmiel et al.
patent: 5197420 (1993-03-01), Arnold et al.
patent: 5246404 (1993-09-01), Ojima
patent: 5323739 (1994-06-01), Mollers
patent: 5352159 (1994-10-01), Suzuki et al.

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