Choke valve device

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 47/16 (2006.01) B01D 17/12 (2006.01) F16K 27/00 (2006.01) F16K 47/06 (2006.01) G05D 7/01 (2006.01) G05D 16/04 (2006.01)

Patent

CA 2625610

Summary An arrangement for a control valve (1) for controlling pressure and flow rate of a fluid, the fluid flowing via an inlet (16) into the control valve (1) being brought to rotate about a main flow axis (20) before the fluid, at least with reduced pressure or speed energy, flows via an outlet opening (12) from the control valve (1) and where at least one inlet port (14) communicating with the inlet (16) being provided tangentially in relation to an inlet portion (22) of the speed reduction chamber (6) located in the control valve (1), and where the speed reduction chamber (6), provided substantially concentric with the main flow axis (20), is divergent over at least the first portion of the main flow direction.

L'invention concerne un agencement destiné à une vanne de commande (1) permettant de commander la pression et le débit d'un fluide, celui-ci s'écoulant via une admission (16) dans la vanne de commande (1) amenée à tourner autour d'un axe d'écoulement principal (20) avant que le fluide, présentant au moins une pression ou énergie de vitesse réduite, ne s'écoule via une ouverture d'évacuation (12) de la vanne de commande (1) et au moins un orifice (14) d'admission communicant avec l'admission (16) ménagée de manière tangentielle par rapport à une partie (22) de l'admission de la chambre de réduction de vitesse (6) située dans la vanne de commande (1), la chambre de réduction de la vitesse (6), placée de manière sensiblement concentrique avec l'axe d'écoulement principal (20), étant divergeante sur au moins la première partie de la direction principale d'écoulement.

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