Hydraulic chain tensioner

Details Hydraulic chain tensioner Hydraulic chain tensioner

1983-05-06

1985-03-26

Novosad, Stephen 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

474111, F16H 708

Patent

active

045071039

ABSTRACT:
A hydraulic chain tightener with a hollow piston longitudinally movably guided within a hydraulic housing; the hollow piston is closed off at the top by a throttling plug and the hydraulic housing is to be vented by way of the channels of the throttling plug; an expansion space is formed between the throttling plug and the pressure space present at the bottom side of the hollow piston, which is closed off with respect to the pressure space by a ball check valve; during chain impacts on the hollow piston and corresponding pressure increases in the pressure space, the check valve opens and enables by pump action a rapid venting of the hydraulic housing.

REFERENCES:
patent: 3626776 (1971-12-01), Staudinger et al.
patent: 4190025 (1980-02-01), Wahl

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