B - Operations – Transporting – 04 – B
Patent
B - Operations, Transporting
04
B
B04B 1/10 (2006.01) B04B 7/08 (2006.01)
Patent
CA 2209341
Rotor for a centrifugal separator, which rotor (1) during operation rotates in a space (4) and inside itself forms a chamber (12) and a passage (7), which extends radially outwardly from the chamber (12) to the outside of the rotor (1). In order to accomplish at low costs such a rotor (1), in which gas present in the chamber (12) and in the passage (7) does not generate sound, the passage (7) in the rotor is designed with a radially outer portion (13), which extends radially inwardly from the outside of the rotor (1), and which has a cross section perpendicular to the central axis of the passage (7), which in a plane perpendicular to the rotation axis through the central axis has an extension, which continuously decreases by the distance from the outside of the rotor (1) to a radially inner cross section, which has a certain extension in this plane and from the outside of the rotor (1) is located at a distance along the central axis, which at least is one third of the extension of the radially inner cross section in said plane, and that the extension of the cross section of the passage (7) at the outside of the rotor (1) in the plane is between four and nine thirds of the extension of the radially inner cross section in said plane.
L'invention porte sur un rotor de séparateur centrifuge tournant dans l'espace (4) et comportant une chambre intérieure (12) et un passage (7) s'étendant radialement vers l'extérieur depuis la chambre (12) jusqu'à la périphérie du rotor (1). Pour fabriquer économiquement un tel rotor (1) et pour que gaz présent dans la chambre (12) et dans le passage (7) ne génère pas de bruit, ledit rotor est muni d'une ouverture extérieure (13) s'étendant radialement depuis la périphérie du rotor (1) et dont la section perpendiculairement à l'axe central du passage (7) et dans un plan perpendiculaire à l'axe de rotation et passant par l'axe central (7) décroît régulièrement de la périphérie du rotor à la section la plus intérieure radialement. L'ouverture, qui présente une dimension donnée dans ce plan, se situe en partant de la périphérie du rotor (1) le long de l'axe central à une distance d'au moins un tiers de la dimension de sa section intérieure radialement dans ledit plan. La surface de la section du passage (7) à la périphérie du rotor (1) dans ce même plan est comprise entre quatre et neuf tiers de celle de la section la plus intérieure radialement dans ledit plan.
Alfa Laval Ab
Borden Ladner Gervais Llp
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