Tensioner or toothed belts

Details Tensioner or toothed belts Tensioner or toothed belts

1989-02-14

1990-03-20

Bui, Thuy M.

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

474135, F16H 712

Patent

active

049097776

ABSTRACT:
A hydraulically actuated tensioner of a toothed belt. A piston slidable with clearance in a cylinder forms front and rear oil-filled chambers communicating through a passage in the piston with a check valve for restricting flow in one direction. A piston rod extending from one end of the piston is urged by a spring, through the front chamber, against a roller to impart tension on the belt. An oil reservoir communicating with the front chamber is enclosed by a spring-biased diaphragm for maintaining the oil pressure in the chambers above atmospheric pressure at all times.

REFERENCES:
patent: 4539001 (1985-09-01), Okabe
patent: 4708696 (1987-11-01), Kimura et al.

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