Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...
Patent
1997-02-03
1998-01-20
Czaja, Donald E.
Paper making and fiber liberation
Processes and products
Running or indefinite length work forming and/or treating...
162336, 162338, D21F 106, F15D 102, F16K 132, F16K 2502
Patent
active
057097771
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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Begemann Ulrich
Heinzmann Helmut
Czaja Donald E.
J.M. Voith & GmbH
Padgett Calvin
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