Rotor with inlet perimeters
First Claim
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1. A rotor device for use in a molten metal pump, the device comprising:
- a top and a bottom;
a plurality of openings through which molten metal can pass, wherein each of the openings is defined in part by an inlet perimeter;
a plurality of imperforate rotor blades for displacing molten metal, wherein each of the plurality of rotor blades has a leading face that includes a first portion that directs molten metal downward and a second portion beneath the first portion that directs molten metal outward, and a trailing face that includes a recess that increases the size of one of the openings to help permit molten metal to pass therethrough and into a pump chamber;
wherein as the device is rotated, the openings, the inlet perimeters, and the rotor blades rotate.
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Abstract
A device for use in a molten metal pump helps alleviate jams between rotating rotor blades and a stationary pump base. The device includes inlet perimeters that partially define one or more openings, and one or more rotor blades, wherein each rotor blade has a portion that directs molten metal into a pump chamber, and a portion that directs molten metal outwards. Each rotor blade may also include a recess that makes an opening larger to enable more molten metal to pass through the openings.
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Citations
16 Claims
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1. A rotor device for use in a molten metal pump, the device comprising:
a top and a bottom;
a plurality of openings through which molten metal can pass, wherein each of the openings is defined in part by an inlet perimeter;
a plurality of imperforate rotor blades for displacing molten metal, wherein each of the plurality of rotor blades has a leading face that includes a first portion that directs molten metal downward and a second portion beneath the first portion that directs molten metal outward, and a trailing face that includes a recess that increases the size of one of the openings to help permit molten metal to pass therethrough and into a pump chamber;
wherein as the device is rotated, the openings, the inlet perimeters, and the rotor blades rotate.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
Specification