Method and arrangement to accomplish a one-way flow

Details Method and arrangement to accomplish a one-way flow Method and arrangement to accomplish a one-way flow

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 7/07 (2006.01) F16K 7/17 (2006.01) F16K 15/14 (2006.01)

Patent

CA 2395965

The invention concerns a method and an arrangement to accomplish a self-acting function of one-way flow in a conduit (2) with a minimal flow resistance. A one-way valve (1), which in an unaffected position blocks the conduit (2), is of a flexible, elastic material, and is arranged with a tight fit in connection to the inner surface of the conduit (2) and is partially fixed along the inner circumference of conduit (2) by means of one or more parts having a surface with longitudinal/circumferential extension in the conduit (2). In case of pressure of a medium in one direction of the conduit (2), any flow will be blocked due to the fact that said pressure of the medium will press the non fixed parts of the one-way valve (1) against the inner surface of the conduit (2), whereby a completely tight element is formed. Reversed will the non-fixed parts of the one-way valve (1) collapse in case of pressure of the medium directed in the opposite direction, whereby a flow will be let through without any substantial resistance depending on the magnitude of the pressure.

L'invention concerne un procédé et un dispositif permettant d'accomplir une fonction automatique d'écoulement unidirectionnel dans un conduit (2) avec un minimum de résistance à l'écoulement. Une valve anti-reflux (1) qui, dans une position de service, bloque le conduit (2), est réalisée dans un matériau flexible élastique. Cette valve anti-reflux, étroitement adaptée à la surface interne du conduit (2), est partiellement fixée sur la circonférence interne du conduit (2) par au moins une partie d'extension longitudinale/périphérique de la surface interne du conduit (2). Si un fluide exerce une pression dans une direction du conduit (2), tout écoulement est bloqué puisque la pression du fluide agit sur les éléments non fixés de la valve anti-reflux (1), lesquels viennent se plaquer sur la surface interne du conduit (2). On obtient ainsi un élément parfaitement hermétique. A l'inverse, si le fluide exerce une pression dans la direction opposée, les éléments non fixés de la valve anti-reflux (1) s'affaissent, un écoulement est ainsi permis en fonction de l'importance de la pression et sans résistance à l'écoulement.

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