Apparatus for measuring volumetric or mass fluid flow

G - Physics – 01 – F

Patent

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Details

G01F 3/38 (2006.01) A61M 5/172 (2006.01)

Patent

CA 2525440

Apparatus is provided for measuring volumetric or mass flow of fluid which includes a capsule (12) adapted to reciprocate within a housing (22) and receive fluid from a tube (18), a magnetic force exerting device (24) adapted to exert a force on the capsule (12) that is proportional to the capsule (12) position. A seal (20) is provided in the bottom opening of the capsule (12) for fluidly blocking while a pin (36) is provided to push open the seal (20) when the capsule (12) is downwardly positioned to drain it. The volume or mass flow of the fluid can thus be measured continuously and volumetric flow determined.

Cette invention concerne un appareil servant à mesurer un écoulement de fluide volumétrique ou massique, lequel appareil comprend une capsule (12) conçue pour effectuer un mouvement de va-et-vient à l'intérieur d'un logement (22) et pour recevoir un fluide provenant d'un tube (18), un dispositif exerçant une force magnétique (24) conçu pour exercer une force sur la capsule (12), laquelle force est proportionnelle à la position de la capsule (12). Un obturateur (20) est placé dans l'ouverture inférieure de la capsule (12) afin qu'il bloque le passage du fluide, tandis qu'un axe (36) est utilisé pour pousser l'obturateur (20) hors de l'ouverture lorsque la capsule (12) est positionnée vers le bas de façon que le fluide s'écoule. Le volume ou l'écoulement massique du fluide peut ainsi être mesuré en continu et l'écoulement volumétrique peut être déterminé.

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