Casting technology for induction rotor assemblies

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United States of America Patent

PATENT NO 9901980
SERIAL NO

14537727

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Abstract

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An induction rotor assembly having an induction cage that is formed using a combination of liquid and solid materials. The first and second end plates of the induction cage may be fabricated before the casting of the conductors of the induction cage. According to certain embodiments, the first and second end plates may be assembled with first and second molds and a rotor core to form a casting assembly. A liquid casting material may be injected into the casting assembly, wherein the liquid casting material may solidify within one or more core passageways of the rotor core, thereby forming the conductors of the induction cage. The first and second end plates may also include flow channels that may be configured to facilitate the flow of the liquid casting material in the casting assembly, and increase the area of contact between the liquid casting material, when solidified, and the end plates.

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Patent Owner(s)

Patent OwnerAddress
INGERSOLL-RAND INDUSTRIAL U S INC525 HARBOUR PLACE DRIVE SUITE 600 DAVIDSON NC 28036

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boxberg, Fredrik Andreas Espoo, FI 4 17
Maki-Ontto, Petri Juhani Espoo, FI 11 66

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