Control valve with profiled packing element

Details Control valve with profiled packing element Control valve with profiled packing element

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 47/10 (2006.01)

Patent

CA 2645644

Control valve with profiled packing element for making bidirectional flow-through with asymmetric intensity possible in a flow area. The packing element (1) has a first surface which can be abutted against a second surface in the valve housing (2). The packing element (1) has a first position in which said first surface (3) and said second surface (4) abut against one another, and a second position in which said first surface (3) and said second surface (4) are distant from one another. At least one of the surfaces (3, 4) is provided with a damage (5) by means of which when said packing element (1) is in its first position a first cross-section of flow is ensured between said abutting first and second surfaces (3, 4), which is smaller than a second cross-section of flow ensured by said packing element (1) when it is in its second position.

L'invention concerne une soupape de commande présentant un élément de garniture profilé qui permet un écoulement bidirectionnel avec une intensité asymétrique dans une zone d'écoulement. L'élément de garniture (1) présente une première surface pouvant être appliquée contre une seconde surface dans le logement (2) de la soupape. L'élément de garniture (1) peut adopter une première position dans laquelle la première surface (3) et la seconde surface (4) sont en contact, et une seconde position dans laquelle la première surface (3) et la seconde surface (4) sont à distance l'une de l'autre. Au moins une des surfaces (3, 4) présente une dégradation (5) qui permet d'assurer entre lesdites surfaces en contact (3, 4), lorsque l'élément de garniture (1) se trouve dans sa première position, une première section d'écoulement, inférieure à une seconde section d'écoulement assurée par l'élément de garniture (1) lorsque celui-ci se trouve dans sa seconde position.

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