Method, arrangement and use for and of, respectively, a vane damper
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United States of America Patent
Stats
-
Dec 17, 2002
Grant Date -
May 10, 2001
app pub date -
Dec 12, 2000
filing date -
Sep 30, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vane damper, and a method for making the vane damper is disclosed. A casing including a space for at least one rotable vane divides the space into two parts. The spaces are variable because of the vane which rotates within the space. Further, a number of asymmetrical ducts connects the spaces separated by the vane with a gas accumulator space so that a medium within the spaces for damping motion of the vane can expand into the gas accumulator space against the force of a gas. The vane is produced by extruding aluminum or an aluminum containing alloy. The vane is sealed against the surfaces of the space as well as a bearing member supporting the vane.
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