Tensioner device for wrapping connector driving device in intern

Details Tensioner device for wrapping connector driving device in intern Tensioner device for wrapping connector driving device in intern

1986-03-18

1987-06-23

Novosad, Stephen J.

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Members are gripping jaws actuated during each rotation of...

474104, 474118, 474133, F16H 712

Patent

active

046749969

ABSTRACT:
A tensioner device for applying a predetermined tension force to a transmission belt extended between a driving wheel and a driven wheel supported on the body of an internal combustion engine, including a hydraulic automatic adjuster which comprises a plunger case fitted in a cylinder bore through a seal member and a plunger slidably and axially movably fitted in the plunger case, open edges of the plunger case and plunger being sealed from outside by means of a flexible boot. An extra feed oil chamber formed within the plunger is in communication with a feed oil source by means of a closed oil path through a feed oil port and in communication with an oil reservoir by means of another closed oil path through an oil discharge port provided in a spaced relation from the feed oil port. A high pressure oil chamber is provided below the plunger, and high pressure oil within the high pressure oil chamber may leak into the extra oil chamber through a sliding clearance provided between sliding surfaces of the plunger and the plunger case. The plunger has an open end formed as an oil injection port which allows injection of oil to the high pressure oil chamber, the injection oil port being oil-tightly sealed from outside by means of a cap.

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