Rotodynamic Pump With Permanent Magnet Coupling Inside The Impeller
AssigneePeopleflo Manufacturing, Inc.
InventorsWilliam R. Blankemeier, Radosav Trninich
Life of this patent
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Abstract
Rotodynamic pumps having an inner drive permanent magnet coupling disposed inside an impeller are disclosed. The impeller has a casing having a pumping region generally in a pumping plane that is perpendicular to the rotational axis of the impeller and aligned with a permanent magnet coupling that includes outer magnets that are connected to the impeller and at least partially aligned with the pumping region of the impeller, and inner magnets that are connected to an inner magnet ring and are axially aligned with the outer magnets. A canister is sealed to the casing and separates the outer magnets from the inner magnets.
Claims26
A rotodynamic pump having an inner drive permanent magnet coupling disposed inside of an impeller comprising:
- a pump casing defining a pumping cavity;
- an inlet port connected to the pumping cavity;
- a discharge port connected to the pumping cavity;
- an impeller being rotatable about a rotational axis and disposed within the pumping cavity,
- the impeller having a pumping region generally in a pumping plane that is perpendicular to the rotational axis and aligned with a permanent magnet coupling that includes outer magnets that are connected to the impeller and at least partially axially aligned with the pumping region of the impeller,
- inner magnets that are connected to an inner magnet ring and are axially aligned with the outer magnets, and
- a canister that is sealed to the casing and separates the outer magnets from the inner magnets.
Dependencies are inferred from the claim text.