Variable damping valve of shock absorber

Brakes – Internal-resistance motion retarder – Valve structure or location

Reexamination Certificate

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C188S282500, C188S266600

Reexamination Certificate

active

07407044

ABSTRACT:
A variable damping valve of a shock absorber is capable of properly adjusting a damping force according to read conditions, travel conditions and the like while a vehicle is traveling, thereby improving ride comfort and control stability. A flow of oil is controlled to generate a damping force and the damping force is simultaneously adjusted according to pressure in a pilot chamber. The damping valve comprises an upper retainer communicating with a high-pressure side and a main valve installed below the upper retainer. The main valve comprises a valve body defining a pilot chamber, a disk ring installed on a top surface of the valve body, and a housing for containing the valve body and the disk ring and integrally confining the valve body and the disk ring by being curled at upper and lower ends of the housing.

REFERENCES:
patent: 4789051 (1988-12-01), Kruckemeyer et al.
patent: 5325942 (1994-07-01), Groves et al.
patent: 5699885 (1997-12-01), Forster
patent: 5975258 (1999-11-01), Nezu et al.
patent: 6860369 (2005-03-01), Weiffen et al.
patent: 2002/0189914 (2002-12-01), Naples et al.
patent: 2005/0045440 (2005-03-01), Kock et al.
patent: 10-141416 (1998-05-01), None
patent: 10-0253850 (2000-01-01), None

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