Damper, in particular for motor vehicle

Details Damper, in particular for motor vehicle Damper, in particular for motor vehicle

2007-06-26

2007-06-26

Williams, Thomas (Department: 3683)

Brakes

Internal-resistance motion retarder

Having a thrust member with a variable volume chamber

C188S322150

Reexamination Certificate

active

10510149

ABSTRACT:
A damper, in particular for motor vehicle, includes a cylinder containing a hydraulic fluid, a main piston (1) actuated by a rod (3) defining in the cylinder a first chamber (2a) and a second chamber (2), the second chamber containing the rod, a hydraulic fluid reservoir (6) and a valve (10) placed in the hydraulic fluid flow between the first chamber and the second chamber, the valve including a mobile check valve (28) co-operating with a seat (30) and elements designed to press the check valve on its seat. The damper further includes filtering elements mounted (16) in parallel with the valve (10), adapted to generate a filtering control pressure acting on the check valve, the control pressure depending on the pressure differential at the inlet and the outlet of the valve.

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Patent Abstracts of Japan vol. 2000, No. 18, Jun. 5, 2001—& JP 09 151980 A (Oehlins Racing AB; Yamaha Motor Co Ltd) Jun. 10, 1997 abstract.
Patent Abstracts of Japan vol. 1997, No. 02, Feb. 28, 1997—& JP 08 260747 A (Kayaba Ind Co Ltd), Oct. 8, 1996 abstract.

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