F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
F16F 9/00 (2006.01)
Patent
CA 2397569
The invention concerns a damper with high dissipating power comprising a piston-rod assembly (12) sliding in a cylinder (1) defining on either side of the piston (13) a working chamber (18, 19) containing hydraulic fluid. The invention is characterised in that each working chamber (18, 19) communicates permanently with an associated chamber (20, 21) containing a heterogeneous energy absorbing-dissipating structure consisting of a porous capillary matrix (51, 61) and an associated liquid (52, 62) towards which the matrix is lyophobic. Further, each working chamber (18, 19) communicates with a common equalizing chamber (30) via an associated valve system (32, 33) including non-return means (40, 41) which automatically closes the chamber concerned during compression, and opens said chamber during expansion.
L'invention concerne un amortisseur à haut pouvoir dissipatif comportant un ensemble tige-piston (12) coulissant dans un cylindre (11) en délimitant de pan et d'autre du piston (13) une chambre de travail (18; 19) contenant du fluide hydraulique. Conformément à l'invention, chaque chambre de travail (18, 19) communique en permanence avec une chambre associé (20, 21) renfermant une structure hétérogène d'absorption-dissipation d'énergie constituée par une matrice capillaire poreuse (51, 61) et un liquide associé (52, 62) au regard duquel ladite matrice estlyophobe. En outre, chaque chambre de travail (18, 19) communique avec une chambre commune de compensation (30) par l'intermédiaire d'un système de valve associé (32, 33) incluant un moyen anti-retour (40, 41) qui assure automatiquement la fermeture de la fermeture de la chambre de travail concernée lors de la compression, et l'ouverture de la dite chambre lors de la détente.
Eroshenko Valentin
Goudreau Gage Dubuc
Sarl Dld International
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