Hydraulic tensioner

Details Hydraulic tensioner Hydraulic tensioner

1996-04-26

1998-07-28

Graysay, Tamara L.

Endless belt power transmission systems or components

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

Load responsive tension adjuster or shifter

474110, 474138, F16H 708, F16H 722, F16H 712

Patent

active

057856192

ABSTRACT:
A hydraulic tensioner 10 includes a piston rod 12 slidably fitted in a cylinder 14 with a small gap or clearance therebetween, and a housing 16 containing the cylinder 14. A ball seat 20 is press-fitted in an end of the cylinder 14 opposite to the piston rod 12 so as to define within the cylinder 14 a high pressure oil chamber 21. The housing 16 has a partition wall 26 at a substantially central portion thereof. The cylinder 14 is loosely fitted in the housing 16 with its longitudinal portion extending forwardly from the partition wall 26. The partition wall 26 has an oil passage 32 having an inside diameter smaller than the outside diameter of the ball seat 20, so that the cylinder 14 and the ball seat 20 are in abutment with the partition wall 26 of the housing 16. A force tending to retract the piston rod 12 generates a pressure which acts on the partition wall 26 either directly via a spring 24 and the cylinder 14 or via the high pressure oil chamber 21 and the ball seat 20.

REFERENCES:
patent: 4702726 (1987-10-01), Ojima et al.
patent: 4772251 (1988-09-01), Goppelt et al.
patent: 4790801 (1988-12-01), Schmidt et al.
patent: 4826470 (1989-05-01), Breon et al.
patent: 4881927 (1989-11-01), Suzuki
patent: 4909777 (1990-03-01), Inoue et al.
patent: 4911679 (1990-03-01), Inoue et al.
patent: 4925436 (1990-05-01), Hayashi et al.
patent: 4950209 (1990-08-01), Kawashima et al.
patent: 4963121 (1990-10-01), Himura et al.
patent: 4976660 (1990-12-01), Breindl
patent: 4985009 (1991-01-01), Schmidt et al.
patent: 4986796 (1991-01-01), Kawashima et al.
patent: 4997410 (1991-03-01), Polster et al.
patent: 4997411 (1991-03-01), Breon et al.
patent: 5087225 (1992-02-01), Futami et al.
patent: 5090946 (1992-02-01), Futami et al.
patent: 5116284 (1992-05-01), Cho
patent: 5167402 (1992-12-01), Nakakubo et al.
patent: 5181889 (1993-01-01), Maruyama et al.
patent: 5234383 (1993-08-01), Harada et al.
patent: 5304099 (1994-04-01), Deppe et al.
patent: 5383813 (1995-01-01), Odai
patent: 5482262 (1996-01-01), Hayakawa et al.
patent: 5577970 (1996-11-01), Smith et al.
patent: 5601505 (1997-02-01), Tada
patent: 5606941 (1997-03-01), Trzmiel et al.
patent: 5607368 (1997-03-01), Hida et al.

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