F - Mech Eng,Light,Heat,Weapons – 15 – D
Patent
F - Mech Eng,Light,Heat,Weapons
15
D
F15D 1/02 (2006.01) D21F 1/06 (2006.01)
Patent
CA 2116268
DEVICE AND METHOD FOR CHANGING THE FLOW RESISTANCE OF A FLUID FLOW CONTROL DEVICE ABSTRACT OF THE DISCLOSURE 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.
Begemann Ulrich
Heinzmann Helmut
Ruf Wolfgang
Gowling Lafleur Henderson Llp
J. M. Voith Gmbh
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