Hydraulic tensioner for dual chain system

Details Hydraulic tensioner for dual chain system Hydraulic tensioner for dual chain system

1996-12-05

1997-12-23

Schoeppel, Roger J.

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

474110, 474138, F16H 708

Patent

active

057002169

ABSTRACT:
A hydraulic tensioner for operation of a dual chain system including at least one piston maintaining force on two chain guide arms. One embodiment includes an inner and outer piston with a first spring within the bore and a second spring on top of the housing, where each piston contacts a chain guide arm. A second embodiment includes one piston with a fulcrum arm contacting the chain guide arms. A third embodiment includes two pistons arranged side-by-side sharing the same chamber and check valve assembly.

REFERENCES:
patent: 4457741 (1984-07-01), Hoeptner
patent: 4539001 (1985-09-01), Okabe
patent: 5021032 (1991-06-01), Macchiarulo et al.
patent: 5259820 (1993-11-01), Mott
patent: 5277664 (1994-01-01), Mott
patent: 5462493 (1995-10-01), Simpson

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