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US 6,672,818 B1Granted
Magnetically driven pump
AssigneeSociete Siebec
InventorsClaude Terracol, Jean Guy Villette
Life of this patent
Estimating the term…
Abstract
A magnetically driven pump comprises a sealing partition 48 whereof the central portion forms the rotational axis of the rotating portion of the pump, that central portion being itself supported and centered by a rotating connection piece 42 linked to or integral with drive shaft 41 of the motor 29.
Claims12
A magnetically driven pump comprising:
- a pump element fitted with a first rotor in the form of a wheel mounted to rotate in a body connected to a suction and discharge piping,
- a first series of magnets integral with the first rotor,
- a driving motor fitted with a drive shaft on which is mounted a second rotor carrying a second series of magnet, both series of magnets being laid out concentrically to provide a rotation magnetic coupling,
- a sealing device having a fixed partition extending in a gap between both series of magnets while providing tight separation between the pump element and the driving motor,
- and a connection piece connected to the drive shaft, wherein the connection piece is continued axially by a sufficient length to insert the connection piece inside a female cylindrical bearing in a core of the first rotor to provide mechanical support and accurate centering of the fixed partition and of the first rotor.
2 more elements
Dependencies are inferred from the claim text.