Hermetically sealed autotensioner

Details Hermetically sealed autotensioner Hermetically sealed autotensioner

1989-03-24

1990-03-27

Bui, Thuy M.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Guide roll mounted for movement of its axis along...

474110, F16H 712

Patent

active

049116800

ABSTRACT:
A hermetically sealed autotensioner used for adjusting tension of engine belts comprises a cylinder, a plunger slidably fitted in the cylinder and having a rod projeced from the cylinder, a free piston slidably fitted in the cylinder, and a rod guide fitted in the tip portion of the cylinder so as to slidably support the rod. When a large thrust force acts on the rod, the rod guide serves as a bearing for the rod so that no scuffing or rocking motion occurs between the cylinder and the plunger.

REFERENCES:
patent: 4790796 (1988-12-01), Okabe et al.

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