A HOLLOW DISK PUMP OF THE PORTABLE TYPE WITH VARIABLE ECCENTRICITY

摘要

The present invention concerns a hollow disc pump that foresees: An impeller (9); A rotating shaft (3); Means (4, 5, 30, 36) to connect eccentrically the impeller (9) to the rotating shaft (3) in such a way that the impeller (9) can be conducted in rotation by said rotating shaft and contextually can translate, moving near and/or moving apart transversally with respect to the longitudinal axis of said rotating shaft (3); Characterized in that said means comprise a guiding hole obtained transversally in the rotating shaft and a ring (30) suitable for connecting with the impeller (9) and of such internal diameter that the rotating shaft is inserted in such ring with a predetermined radial play, and wherein said ring is provided with a radial pivot (5) that is inserted slidingly in said guiding hole of the shaft in such a way that the ring can move transversally with respect to the rotating shaft (9) through said pivot (5) that can slide in the guiding hole, and wherein elastic means (4) are further foreseen, arranged in such a way that said ring (30) is kept eccentric with respect to the longitudinal shaft with a pre-determined transversal play (d).