Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1989-09-06
1991-07-16
Halvosa, George E. A.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
180312, 248562, 248636, 267219, F16M 500, F16F 1300
Patent
active
050318845
ABSTRACT:
A hydro-elastic support mounted between two mechanical elements, subjected to excitations of variable frequencies, and able to provide two levels of stiffness by simple outside control includes an elastic vault adapted to be fastened to one of the mechanical elements, a support adapted to be fastened to the other mechanical element, an upper fluid chamber, a compensation chamber limited by a membrane, a helical duct providing a communication of the fluid between the two chambers, and a central piston for compensation of movement of the fluid from the upper fluid chamber to the compensating chamber. The piston can be immobilized by any time by an integrated mechanism that can be controlled remotely.
REFERENCES:
patent: 4583723 (1986-04-01), Ozawa
patent: 4635910 (1987-01-01), Ozawa et al.
patent: 4650170 (1987-03-01), Fukushima
patent: 4756513 (1988-07-01), Carlson
patent: 4793599 (1988-12-01), Ishioka
Patent Abstracts of Japan, vol. 12, No. 73 (M-674) [2920], 8 mars 1988; & JP-A-62 215 141 (Bridgestone Corp.) 21-09-1987 *Resume*.
Patent Abstrancts of Japan, vol. 8, No. 174 (M-316) [1611], 10 aout 1984; & JP-A-59 65 635 (Toyota Jidosha K.K.) 13-04-1984.
Baudrit Patrick
Blais Jean-Pierre
Fort Patrice
Compagnie des Produits Industriels de l'Ouest (C.P.I.O.)
Halvosa George E. A.
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