Hydraulic tensioner with passage of variable cross-section betwe

Details Hydraulic tensioner with passage of variable cross-section betwe Hydraulic tensioner with passage of variable cross-section betwe

1998-12-08

2000-04-25

Bucci, David A.

Endless belt power transmission systems or components

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

Load responsive tension adjuster or shifter

474110, F16H 708, F16H 722

Patent

active

060538317

ABSTRACT:
A hydraulic chain tensioner has a fluid leakage passageway along the outside of the piston surface that has a variable cross-section. The tensioner has a tapered or stepped geometry in either the bore of the tensioner or in the piston or both the bore and the piston. Due to the unique geometry, friction is reduced, flow leakage is controlled, and the wear of the tensioner is improved.

REFERENCES:
patent: 5352159 (1994-10-01), Suzuki et al.
patent: 5370584 (1994-12-01), Todd
patent: 5595549 (1997-01-01), Jarrand
patent: 5967920 (1999-10-01), Dembosky et al.

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