Gas flow monitor

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

Patent

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Details

F16K 17/30 (2006.01)

Patent

CA 2679674

The invention relates to a gas flow monitor in which the adjustment of a defined value range of the closed and/or nominal flow rate may be made without interference in the position of the functional elements. Moreover, the adjustment or a change in the closed and/or nominal flow rate that was set should also be possible outside the production site as well. For this purpose, the gas flow monitor comprises a gas-tight housing (1), which has a valve seat (5) for a closing member (9) that is movable in the housing (1), the closing member being guided in a longitudinally movable fashion in a sheath (6) via a pin (7) and held in the open position against the flow direction by the force of a closing spring (11). The housing (1) is connected on the inlet side to a tube-shaped insert (13), the inner contour (14) of which determines the flow profile up to the valve seat (5).

L'invention concerne un contrôleur d'écoulement gazeux permettant le réglage d'une plage de valeurs définie du débit de fermeture ou du débit nominal sans intervention dans la position des éléments fonctionnels. Il permet en outre le réglage ou une modification du débit de fermeture ou du débit nominal réglé même hors du lieu de fabrication. A cet effet, le contrôleur d'écoulement gazeux selon l'invention est constitué d'un boîtier (1) étanche aux gaz qui présente à l'intérieur un siège de soupape (5) pour un élément obturateur (9) mobile dans le boîtier (1), guidé en déplacement longitudinal par le biais d'une tige (7) dans un manchon (6) et maintenu en position ouverte par la force d'un ressort de fermeture (11) agissant à l'encontre du sens d'écoulement. Le boîtier (1) est relié côté entrée à un élément rapporté tubulaire (13) dont le contour intérieur (14) définit le profil d'écoulement jusqu'au siège de soupape (5).

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