Shock absorber having unidirectional fluid flow

Details Shock absorber having unidirectional fluid flow Shock absorber having unidirectional fluid flow

F - Mech Eng,Light,Heat,Weapons

16

F

F16F 9/00 (2006.01)

Patent

CA 2758517

A twin-tube shock absorber comprising an outer tube which houses an inner tube. The inner tube forms an annulus area between the outer tube and the inner tube, and includes a check valve for allowing a fluid to flow unidirectionally from the annulus area to the interior volume of the inner tube. The shock absorber includes a piston which is slidably disposed within the inner tube and divides the interior volume into a rod side chamber and a cap side chamber. The piston includes a check valve allowing the fluid to flow unidirectionally from the cap side chamber to the rod side chamber. A flow regulator is disposed about the inner tube for allowing unidirectional flow of fluid from the rod side chamber to the annulus area, wherein the flow regulator provides a resistance against the flow of the fluid from the rod side chamber to the annulus area.

L'invention porte sur un amortisseur de chocs à deux tubes qui comporte un tube extérieur recevant un tube intérieur. Le tube intérieur forme une zone annulaire entre le tube extérieur et le tube intérieur, et comprend un clapet anti-retour permettant à un fluide de circuler de manière unidirectionnelle de la zone en anneau au volume intérieur du tube intérieur. L'amortisseur de chocs comprend un piston qui est disposé coulissant à l'intérieur du tube intérieur et qui divise le volume intérieur en une chambre côté tige et une chambre côté tête. Le piston comprend un clapet anti-retour permettant au fluide de circuler de façon unidirectionnelle de la chambre côté tête à la chambre côté tige. Un régulateur d'écoulement est disposé autour du tube intérieur pour permettre un écoulement unidirectionnel du fluide de la chambre côté tige à la zone annulaire, le régulateur d'écoulement assurant une résistance contre l'écoulement du fluide de la chambre côté tige à la zone annulaire.

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