Hydraulic damper

F - Mech Eng,Light,Heat,Weapons – 15 – B

Patent

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Details

F15B 1/00 (2006.01) B64C 25/50 (2006.01) F15B 11/028 (2006.01) F15B 21/00 (2006.01) F16L 55/055 (2006.01)

Patent

CA 2228198

A hydraulic damper is disclosed for reducing undesirable pressure differentials in a hydraulic system. the damper comprises a body assembly, including first and second inlet ports for connecting the damper to a hydraulic system. A pair of lap assemblies are provided for equalizing pressure differentials between the inlet ports. Each lap assembly is in fluid communication with each of said inlet ports. A metered passageway is provided for fluidly connecting each of said inlet ports. A slide is movably received within the lap assembly to permit reciprocal motion. The slide alternately blocks and unblocks the metered passageway in response to a predetermined pressure across one of the respective inlet ports, in order to equalize the pressure differential between the ports.

Amortisseur hydraulique permettant de réduire les différences de pressions indésirables dans un système hydraulique. Cet amortisseur est constitué d'un corps, comportant un premier et un deuxième orifices d'entrée qui relient l'amortisseur au système hydraulique. Une paire d'ensemble de recouvrement permet d'équilibrer les différences de pression entre les orifices d'entrée. Chaque ensemble de recouvrement est en communication hydraulique avec chacun des orifices d'entrée. Un passage gradué permet de relier hydrauliquement chacun de ces orifices d'entrée. Une glissière, placée dans l'ensemble de recouvrement, donne la possibilité d'effectuer un mouvement de va-et-vient. Cette glissière obstrue et dégage alternativement le passage gradué en réponse à une pression prédéterminée dans l'un des orifices d'entrée, afin d'équilibrer la différence de pression entre les orifices.

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