Quick purge tensioner with internal piston spring

Details Quick purge tensioner with internal piston spring Quick purge tensioner with internal piston spring

1999-06-02

2000-10-03

Estremsky, Sherry L.

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, 474138, 474109, F16H 708

Patent

active

061265632

ABSTRACT:
A hydraulic tensioner having a piston slidably received within a bore and biased outward by a spring. A check valve is fixedly mounted in the lower end of the piston. A low pressure fluid chamber is formed within the piston on one side of the check valve. A high pressure fluid chamber is formed on the other side of the check valve between the check valve and the bore. The spring is held within the piston by a reaction member.

REFERENCES:
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patent: 4772251 (1988-09-01), Goppelt et al.
patent: 4792322 (1988-12-01), Goppelt et al.
patent: 4850941 (1989-07-01), Sosson
patent: 4963121 (1990-10-01), Himura et al.
patent: 4985009 (1991-01-01), Schmidt et al.
patent: 5030169 (1991-07-01), Kiso et al.
patent: 5259820 (1993-11-01), Mott
patent: 5277664 (1994-01-01), Mott
patent: 5352159 (1994-10-01), Suzuki et al.
patent: 5702315 (1997-12-01), Sakai et al.

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