Shock absorber having a continuously variable semi-active valve

Details Shock absorber having a continuously variable semi-active valve Shock absorber having a continuously variable semi-active valve

2006-10-11

2010-06-29

Rodriguez, Pam (Department: 3657)

Brakes

Internal-resistance motion retarder

Valve structure or location

C188S299100, C188S266600, C188S322200

Reexamination Certificate

active

07743896

ABSTRACT:
A shock absorber includes an external valve which controls the damping characteristics of the shock absorber. The external valve controls the flow of fluid between the lower working chamber of the shock absorber and the reservoir chamber and between the upper working chamber of the shock absorber. The damping characteristics are dependent on the amount of current being applied to a solenoid valve which controls the movement of a plunger.

REFERENCES:
patent: 3125186 (1964-03-01), Day
patent: 5934421 (1999-08-01), Nakadate et al.
patent: 5960915 (1999-10-01), Nezu et al.
patent: 6119829 (2000-09-01), Nakadate
patent: 6155391 (2000-12-01), Kashiwagi et al.
patent: 6182805 (2001-02-01), Kashiwagi et al.
patent: 6321888 (2001-11-01), Reybrouck et al.
patent: 2005/0077378 (2005-04-01), Kropp et al.
International Search Report and Written Opinion dated Apr. 25, 2008 in corresponding PCT Application No. PCT/US07/21641.

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