Device and method for the non-clogging throttling of a fluid str

Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...

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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.

REFERENCES:
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patent: 3502308 (1970-03-01), Simizu
patent: 3779863 (1973-12-01), Wahren
patent: 3846229 (1974-11-01), Kallmes
patent: 3894562 (1975-07-01), Moseley, Jr. et al.
patent: 3998244 (1976-12-01), Bentley
patent: 4200119 (1980-04-01), Cunningham
patent: 5284318 (1994-02-01), Geiger et al.

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