Device and installation for use in the processing of...

D - Textiles – Paper – 01 – D

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D01D 1/09 (2006.01) B29C 47/92 (2006.01) C08J 5/18 (2006.01) D01F 2/00 (2006.01)

Patent

CA 2173597

The invention is concerned with a device for controlling pressure in a flowing viscous mass, said device being characterized by: - an inlet (8a) through which the mass flows into the device, - a guiding element (9, 12) having a receiving capacity for the mass flowing from said inlet (8a), - a piston (11) having an aperture (11d), which piston is movable within said guiding element (9, 12), the receiving capacity of said guiding element (9, 12) being varied by moving said piston (11), - a receptacle (11a) attached to said aperture (11d) at said piston (11) and joined to said inlet (8a) such that the flowing mass passes from said inlet (8a) through said receptacle (11a) and through said aperture (11d) of piston (11) into said guiding element (9, 12), - an outlet (10a) into which said guiding element (9, 12) leads and whereby the flowing mass is discharged from the device, provided that said inlet (8a), said guiding element (9, 12) and said receptacle (11a) are designed in a pipe-shape and that said receptacle (11a) slides over said inlet (8a) like a telescope when said piston (11) is moving.

L'invention concerne un dispositif servant à réguler la pression d'une matière visqueuse en circulation. Ce dispositif se caractérise en ce qu'il comprend: un orifice d'entrée (8a) par lequel la matière passe pour s'écouler dans le dispositif, un élément de guidage (9) pouvant loger le volume de matière qui s'écoule en passant par l'orifice d'entrée (8a), un piston (11) qui présente une ouverture (11d) et est monté mobile dans l'élément de guidage (9), le mouvement du piston (11) modifiant la capacité de réception de l'élément de guidage (9), un logement (11a) fixé sur l'ouverture (11d) du piston (11) et qui est relié à l'orifice d'entrée, de manière à ce que la matière qui s'écoule à partir de l'orifice d'entrée (8a) parvienne jusque dans l'élément de guidage (9), en passant par le logement (11a) et par l'ouverture (11d) pratiquée dans le piston (11), un orifice de sortie (10a) dans lequel débouche l'élément de guidage (9) et par lequel la matière en circulation est déchargée du dispositif. Selon l'invention, l'orifice d'entrée (8a), l'élément de guidage (9) et l'élément de réception (11a) doivent être tubulaires et l'élément de réception (11a) doit coulisser de manière télescopique au-dessus de l'orifice d'entrée (8a), lorsque le piston (11) se déplace.

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