Arrangement for damping through wire-drawing of a fluid and suspension system in particular of an automotive vehicle fitted with such a damping arrangement
AssigneeAutomobiles Peugeot/Automobiles Citroen
InventorsJacques Dore, Alain Oustaloup, Michel Nouillant, Xavier Moreau
Life of this patent
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Abstract
An arrangement for damping movement of a mass with respect to a support to which the mass is connected by a suspension device. The suspension device is provided with one or more springs and a hydraulic damping system through which a hydraulic fluid flows. One or more devices are present for wire-drawing this fluid through a respective aperture. Each wire-drawing device is arranged to continuously vary the damping characteristics by controlling the extent of opening of the aperture(s) and thus regulate the flow of the fluid through the hydraulic damping system.
Claims19
An arrangement for damping movements of a mass with respect to a support, comprising
- a suspension device for connecting the mass to the support, said suspension device including at least one spring and hydraulic damping means for damping movement of the mass with respect to the support, said hydraulic damping means being arranged to allow a flow of a hydraulic fluid therethrough and including at least one wire-drawing device for regulating the flow of the fluid,
- said at least one wire-drawing device defining an aperture through which the fluid flows and including
- a valve member movable between a position in which said valve member closes said aperture and positions in which said aperture is open against a force urging said valve member to close said aperture,
- at least one plate forming a diaphragm, said valve member being carried on said at least one plate, said at least one plate being arranged perpendicular to said aperture and displaceable between a position in which said valve member closes said aperture and positions in which said aperture is open, and
- control means for controlling the extent of opening of said aperture by said valve member to thereby enable continuous adjustability of the damping characteristics of said hydraulic damping means, said control means being arranged to control displacement of said at least one plate.
An arrangement for damping movements of a mass with respect to a support, comprising
- a suspension device for connecting the mass to the support, said suspension device including at least one spring and hydraulic damping means for damping movement of the mass with respect to the support, said hydraulic damping means being arranged to allow a flow of a hydraulic fluid therethrough and including at least one wire-drawing device for regulating the flow of the fluid,
- said at least one wire-drawing device defining an aperture through which the fluid flows and including
- a valve member movable between a position in which said valve member closes said aperture and positions in which said aperture is open against a force urging said valve member to close said aperture,
- at least one plate forming a diaphragm, said valve member being carried on said at least one plate, said at least one plate being arranged perpendicular to said aperture and displaceable between a position in which said valve member closes said aperture and positions in which said aperture is open, and
- control means for controlling the extent of opening of said aperture by said valve member to thereby enable continuous adjustability of the damping characteristics of said hydraulic damping means, said control means being arranged to control displacement of said at least one plate,
- said control means comprising at least one electro-magnet, said at least one plate being made from a magnetic material and disposed within the magnetic field of said at least one electro-magnet such that the force urging said valve member to close said aperture is adjusted under the effect of the force generated by said at least one electro-magnet.
Dependencies are inferred from the claim text.