Multi-stage impeller for molten metal
First Claim
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1. A rotor with blades for directing molten metal towards a rotor interior and away from the rotor interior, the rotor comprising one or more rotor blades, wherein each rotor blade comprises:
- (a) a first portion having a first surface angled to direct molten metal towards the rotor interior;
(b) a second portion separate from, juxtaposed to, and at least partially closer to the rotor interior than the first portion, and having a second surface angled to direct molten metal towards the rotor interior; and
(c) a third portion separate from, and juxtaposed to the second portion, and having a third surface for directing molten metal outward from the rotor interior.
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Abstract
Aspects of the invention relate to a rotor for transferring molten metal. A powered device, such as a molten metal pump, which may be inside of a transfer chamber, includes a multi-stage rotor to move molten metal within a vessel. The molten metal may be moved out of the vessel and into another structure, which could be another vessel or a launder. The multi-stage rotor may have multiple blades with each blade having multiple surfaces.
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Citations
15 Claims
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1. A rotor with blades for directing molten metal towards a rotor interior and away from the rotor interior, the rotor comprising one or more rotor blades, wherein each rotor blade comprises:
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(a) a first portion having a first surface angled to direct molten metal towards the rotor interior; (b) a second portion separate from, juxtaposed to, and at least partially closer to the rotor interior than the first portion, and having a second surface angled to direct molten metal towards the rotor interior; and (c) a third portion separate from, and juxtaposed to the second portion, and having a third surface for directing molten metal outward from the rotor interior. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification