Hydraulic tensioner

Details Hydraulic tensioner Hydraulic tensioner

2007-06-05

2007-06-05

Johnson, Vicky A. (Department: 3682)

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

Reexamination Certificate

active

10857813

ABSTRACT:
In a hydraulic tensioner, an oil pressure control recess, at a proximal end of a cylindrical, plunger-receiving hole, receives from an oil supply, and also receives oil which oozes past a check valve and an inner sleeve inside the plunger, thereby returning the oil, which would leak to the outside in a conventional hydraulic tensioner, to the interior of the plunger.

REFERENCES:
patent: 6086497 (2000-07-01), Fukuda et al.
patent: 2002/0022541 (2002-02-01), Ullein et al.
patent: 3054068 (2000-04-01), None

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