ROTARY DAMPER ASSEMBLY

A rotary damper assembly (20) comprises a housing (22) extending along a center axis. The housing includes an upper portion (24) and a lower portion (26). The lower portion defines a fluid chamber (32,34). The upper portion defines a compartment in communication with the fluid chamber. The magnetic...

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Bibliographische Detailangaben
Hauptverfasser:	LUN, Saiman, SPEHR, Glen
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A rotary damper assembly (20) comprises a housing (22) extending along a center axis. The housing includes an upper portion (24) and a lower portion (26). The lower portion defines a fluid chamber (32,34). The upper portion defines a compartment in communication with the fluid chamber. The magnetic field generator (56) includes a magnetic core located between the upper portion and the lower portion. The magnetic core extends along the center axis between the upper portion and the lower portion. At least one coil (66) extends about the magnetic core. A shaft (96) extends along the center axis through the upper portion and the magnetic core and into the fluid chamber to facilitate magnetorheological fluid flow from the compartment to the fluid chamber. The magnetic field generator includes an insert (72), containing a permanent magnetic material, for generating a permanent magnetic field to change viscosity of the magnetorheological fluid.