Valve for atomising nozzle and the like

B - Operations – Transporting – 05 – B

Patent

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Details

299/22

B05B 1/32 (2006.01) B05B 1/30 (2006.01) F16K 15/04 (2006.01) F23D 11/38 (2006.01)

Patent

CA 2006655

A valve finding particular use in a pressure atomising nozzle of a heating installation comprises a housing (2) in which there are a valve seat (3) with an adjoining valve chamber (4) and a flow passage leading to an outlet (5). In the interior of the valve chamber (4), there is a spring influenced closure member (6). The cross-section of the valve chamber (4) has a guide section (11) which adjoins the seat (3) and has a cross-section corresponding to that of the closure member (6). It is only downstream of this guide section (11) that the closure member (6) frees a flow passage. This construction of the valve ensures that fluid can flow through the valve only after a particular desired pressure has been reached but, immediately after the conveying pressure drops below a predetermined value, fluid can no longer reach the outlet (5) of the valve chamber (4).

Une soupape trouvant un usage particulier dans un gicleur à pulvérisation mécanique d'une installation de chauffage comprend un boîtier (2) dans lequel il y a un siège de soupape (3) avec une chambre de soupape (4) adjacente et un passage d'écoulement menant à une sortie (5). A l'intérieur de la chambre de soupape (4), il y a un élément de fermeture (6) à ressort. La coupe transversale de la chambre de soupape (4) a une partie guide (11) voisine du siège (3) et est de section correspondante à celle de l'élément de fermeture (6). C'est seulement en aval de la partie guide (11) que l'élément de fermeture (6) dégage un passage d'écoulement. Cette construction de la soupape permet de s'assurer que le fluide peut traverser la soupape seulement après qu'ait été atteint un niveau de pression donné, mais dès que la pression d'alimentation tombe sous une valeur prédéterminée, le fluide ne peut plus atteindre la sortie (5) de la chambre de soupape (4).

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