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AssigneeAsea Brown Boveri AG
InventorsLars Gertmar, Bengt Rydholm, Chandur Sadarangani, Jens P. Zinck
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A rotor for short-circuited alternating current motors, having a pack of circular rotor blades fixedly mounted on a shaft, the plates have, uniformly around the peripheral edges thereof, a number of recesses which, when the plates are packed, form generally axially extending rotor slots, and each rotor slot includes a first recess or cavity whose peripheral edge forms a closed contour and which accommodates a conductor radially inwards of the mantle surface of the rotor, the peripheral edge of said first recess has a concavity which faces towards said peripheral edge, and a second recess which forms a radially extending slot which extends from a point close to the concavity and out towards said peripheral edge, a bridge is formed between the first recess and the second recess, and the second recess has a widened part which is located between the concavity of the first recess and the peripheral edge.
A rotor for short-circuited alternating current motors, comprising a pack of circular rotor blades fixedly mounted on a shaft, the plates have uniformly around the peripheral edges thereof, a number of recesses which, when the plates are packed, form generally axially extending rotor slots, and each rotor slot includes a first recess or cavity whose peripheral edge forms a closed contour and which accommodates a conductor radially inwards of the mantle surface of the rotor, the peripheral edge of said first recess has concavity which faces towards said peripheral edge, and a second recess which forms a radially extending slot which extends from a point close to the concavity and out towards said peripheral edge, a bridge is formed between the first recess and the second recess and the second recess has a widened part which is located between the concavity of the first recess and the peripheral edge.
Dependencies are inferred from the claim text.