Air flow passage for a cyclonic separator and vacuum cleaner...

Details Air flow passage for a cyclonic separator and vacuum cleaner... Air flow passage for a cyclonic separator and vacuum cleaner...

A - Human Necessities

47

L

A47L 9/16 (2006.01) A47L 5/28 (2006.01) B04C 5/02 (2006.01) B04C 5/04 (2006.01) B04C 5/103 (2006.01)

Patent

CA 2589246

A cyclonic separation device is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is located and configured to extend longitudinally through a central portion of the cyclone, whereby the sharp bending of the conduit may be reduced, thereby reducing pressure losses in the device, without unduly interfering with the cyclonic flow within the cyclone. The present invention may be adapted for use with cyclonic separation devices of all types, including single- and multi-stage cyclonic separators. The cyclonic separation device may be incorporated in a vacuum cleaner such as an upright vacuum cleaner. A three dimensional conduit which is optionally used with a cyclonic separator is provided.

L'invention concerne un dispositif de séparation cyclone possédant de meilleures caractéristiques de maintien de la pression. Un conduit d'alimentation en fluide en communication libre avec un orifice d'admission à un cyclone se prolonge longitudinalement dans une partie centrale du cyclone de sorte qu'on puisse réduire l'angle serré du coude du conduit et ainsi réduire les pertes de pression dans le dispositif sans gêner indûment l'écoulement cyclonique dans le cyclone. La présente invention peut être adaptée pour une utilisation avec des dispositifs de séparation cyclone de tous types, y compris les séparateurs cyclones à un ou à plusieurs étages . Le dispositif de séparation cyclone peut être intégré à un aspirateur tel qu'un aspirateur vertical. L'invention peut comprendre un conduit tridimensionnel facultatif employé avec un séparateur cyclone.

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