Device and method for the non-clogging throttling of a fluid stream of suspended matter
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United States of America Patent
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Jan 20, 1998
Grant Date -
N/A
app pub date -
Feb 3, 1997
filing date -
Jul 5, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a valve or throttling device for a fluid flow, and particularly a flow containing solids, like a flow of pulp suspension. The valve has the following features: A hollow body of substantially rotational symmetry, which is traversed by liquid; the hollow body has a variable passage area which is substantially of rotational symmetry; and a main direction of fluid flow which is substantially axial to the longitudinal axis of the hollow body is provided in the hollow body. A liquid feed to the passage area is provided so that a component of rotation around the direction of the main stream is added to the liquid with reference to the direction of the main stream.
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