Belt tensioning device

Details Belt tensioning device Belt tensioning device

1989-02-27

1989-08-08

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

F16H 710

Patent

active

048549223

ABSTRACT:
A tensioning device for belts, chains and similar components especially for the camshaft drive of an internal combustion engine comprising a tension roller mounted on a movable support and a control element by which the support can be moved by an actuating mechanism in the relaxing direction of the belt against the action of a pressure spring when the control element gets heated, characterized in that the control element has a cavity for receiving a pressure liquid whose volume varies as a function of the temperature, the cavity being closed by a membrane connected to the actuating mechanism which operates dependably for long periods of time.

REFERENCES:
patent: 4539001 (1985-09-01), Okabe
patent: 4798563 (1989-01-01), Okabe et al.

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