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US 5,700,215 AGranted
Hydraulic tensioner with piston retention stop
AssigneeBorg-Warner Automotive, Inc.
InventorsNaosumi Tada, Naoji Sakamoto
Life of this patent
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Abstract
A hydraulic tensioner having a slidable plunger in a housing, a shaft stopper ring on the rear-end of the plunger, and a stopper screw fastened to the housing that can engage with the shaft stopper ring at the retracted position of the plunger. Packing is provided to seal a clearance between the stopper screw and the housing when the stopper screw is in its engagement position with the housing.
Claims4
A hydraulic tensioner comprising:
- a housing having an oil chamber formed in a bore in said housing;
- a plunger inserted in said oil chamber and biased by a spring toward the protruding direction of said housing;
- an engagement part located at the rear-end of said plunger;
- a stopper screw for engagement with said engagement part when said plunger is retracted into said oil chamber in the plunger retraction position, said stopper screw being fastened to said housing;
- a sealing member for sealing a clearance between said stopper screw and said housing when the stopper screw is fastened onto said housing.
2 more elements
Dependencies are inferred from the claim text.