Nozzle closing valve, as well as pressure atomizer nozzle...

F - Mech Eng,Light,Heat,Weapons – 23 – D

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Details

F23D 11/38 (2006.01)

Patent

CA 2175272

In a nozzle closing valve (14), particularly for the pressure atomizer nozzle of an oil burner, which comprises an inlet side (20, 27) with an inlet port (27) and a valve seat (28) located at the end of the inlet port (27), as well as a closing member (23), which is sealingly pressed onto the valve seat (28) by a first spring (21) located behind the closing member (23) and is raised from the valve seat (28) counter to the tension of the first spring (21) when a predetermined pressure is reached in the inlet port (27), a maximum sealing action is achieved in the case of easy manufacture and compact construction in that the closing member is constructed as a diaphragm (23), the first spring (21) has a substantially linear spring characteristic and the first spring is housed in a spring chamber (29) constructed as a space open on one side and whose only opening is sealingly closed by the diaphragm (23).

Une soupape de fermeture de gicleur (14), particulièrement dans le cas du gicleur à pulvérisation mécanique d'un brûleur à mazout, qui comprend un côté admission (20, 27) muni d'un orifice d'entrée (27) et un siège de soupape (28) situé à l'extrémité de l'orifice d'entrée (27), ainsi qu'un élément de fermeture (23), qui est scellé par pression sur le siège de soupape (28) par un premier ressort (21) placé derrière cet élément de fermeture (23) et est éloigné du siège de soupape (28) malgré la pression du premier ressort (21) lorsqu'une pression prédéterminée est atteinte dans l'orifice d'entrée (27); un scellement maximal est obtenu grâce à une fabrication simple et une construction compacte lorsque l'élément de fermeture est réalisé sous la forme d'un diaphragme (23); le premier ressort (21) est un ressort essentiellement linéaire placé dans un logement de ressort (29) comportant un espace ouvert d'un côté et dont la seule ouverture est fermée de manière étanche par le diaphragme (23).

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