Movement damping apparatus
AssigneeINVENTUS Engineering GmbH
InventorsStefan Battlogg, Juergen Poesel, Gernot Elsensohn
Life of this patent
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Abstract
A movement damping apparatus has a flow path through which a magnetorheological fluid is pressed. A device that generates a variable magnetic field has a core around which a coil is wound as well as pole surfaces in the flow path. The magnetic field acts on the magnetorheological fluid by way of the pole surfaces. The coil is arranged within the flow path along with the core, the axis of the coil extending perpendicular to the direction of flow of the magnetorheological fluid. The flow path has a jacket made of a magnetically conducting material.
Claims19
A movement damping apparatus, comprising:
- an amount of a magnetorheological fluid to be forced through a flow path along a flow direction;
- a magnet device for producing a variable magnetic field acting on the magnetorheological fluid to control flow characteristics thereof;
- said magnet device including a core forming pole surfaces through which the magnetic field acts on the magnetorheological fluid and a coil wound around said core, said core and said coil being disposed in said flow path and said coil having an axis extending substantially orthogonally to the flow direction;
- at least one partition wall with additional pole surfaces disposed in said flow path in the vicinity of said core and said coil and dividing said flow path into at least two flow sections;
- and
- elements in the form of circle segments having curved surfaces resting on an inner wall of an outlet channel sheathing said flow path, said elements providing the two outermost pole surfaces.
A valve apparatus, comprising
- a valve body formed with at least one through-channel defining a flow path with a given flow direction;
- a magnet device for producing a magnetic field, said magnet device having pole surfaces disposed in said flow path;
- a magnetorheological fluid to be forced through said flow path;
- said magnet device being configured to produce the magnetic field and thereby control, via said pole surfaces in said flow path, a flow characteristic of said magnetorheological fluid;
- said magnet device having an axis extending at right angles to the flow direction, and the magnetic field being formed in said through-channel to thereby influence the flow characteristic of said magnetorheological fluid in said through channel;
- and
- elements in the form of circle segments having curved surfaces resting on an inner wall of an outlet channel sheathing said flow path, said elements providing the two outermost pole surfaces.
A valve apparatus, comprising
- a valve body formed with at least one through-channel defining a flow path with a given flow direction;
- a magnet device for producing a magnetic field, said magnet device having pole surfaces disposed in said flow path;
- a magnetorheological fluid to be forced through said flow path;
- said magnet device being configured to produce the magnetic field and thereby control, via said pole surfaces in said flow path, a flow characteristic of said magnetorheological fluid;
- and
- said magnet device having an axis extending at right angles to the flow direction, and the magnetic field being formed in said through-channel to thereby influence the flow characteristic of said magnetorheological fluid in said through channel;
- wherein said flow path is divided into flow sections by one or a plurality of partition walls that are separated from one another, and wherein a dedicated partition-wall coil is associated with at least some of said partition walls.
Dependencies are inferred from the claim text.