Device and method for changing the flow resistance of a fluid fl

Details Device and method for changing the flow resistance of a fluid fl Device and method for changing the flow resistance of a fluid fl

1995-07-19

1997-12-09

Fox, John

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

137504, 138 45, F16K 3112

Patent

active

056949618

ABSTRACT:
An apparatus and method for variably controlling fluid flow in a closed flow line, especially the flow of a pulp suspension through a headbox of a paper-making machine, includes guiding fluid through a cavity of a conduit having at least two different cross-sectional profiles. Fluid flow resistance is adjusted by changing the contour of an edge defined by the conduit and a transition step connecting the two cross-sections.

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