Fluid pressure sensing chamber

Details Fluid pressure sensing chamber Fluid pressure sensing chamber

G - Physics

01

L

G01L 19/14 (2006.01) A61B 17/00 (2006.01) A61F 9/007 (2006.01) G01L 7/08 (2006.01)

Patent

CA 2564709

A pressure sensing chamber having a tubing extension with a reduced diameter portion extending through the chamber. The tubing contains a plurality of ports so as to allow the purging of air from the chamber, but the ports are sized so that bubbles entering the tubing cannot easily flow into the chamber. The reduced diameter portion creates a pressure differential between the holes. This differential pressure creates flow through the chamber under high liquid flow and turbulent liquid flow events.

Il s'agit d'une chambre de détection de pression pourvue d'un prolongateur de tubage dont une partie présente un diamètre réduit à travers la chambre. Le tubage contient de multiples orifices permettant de purger l'air de la chambre. Toutefois, les orifices sont dimensionnés de sorte que les bulles qui pénètrent dans le tubage ne puissent pas circuler facilement dans la chambre. La partie qui présente un diamètre réduit crée une différence de pression entre les trous. Cette pression différentielle crée une circulation dans la chambre en cas de fort débit de liquide et de turbulences.

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