Invention Grant
- Patent Title: Starting current reduction in induction motors
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Application No.: US14861510Application Date: 2015-09-22
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Publication No.: US09859776B2Publication Date: 2018-01-02
- Inventor: Jacek F. Gieras
- Applicant: Hamilton Sundstrand Corporation
- Applicant Address: US NC Charlotte
- Assignee: Hamilton Sundstrand Corporation
- Current Assignee: Hamilton Sundstrand Corporation
- Current Assignee Address: US NC Charlotte
- Agency: Kinney & Lange, P.A.
- Main IPC: H02K17/16
- IPC: H02K17/16 ; H02K17/30

Abstract:
A rotor of an induction motor includes a shaft, a ferromagnetic rotor core, first and second inductors axially bracketing the rotor core, and a rotor cage. The shaft extends along a stator axis, and the rotor core is disposed coaxially about the shaft. The rotor cage comprises first and second supports, and a plurality of cage bars. The supports are disposed axially between the rotor core and the first and second inductors, respectively. The cage bars surround the shaft, pass through the rotor core, are secured at the first and second supports, and are each electrically connected to both the first and second inductors.
Public/Granted literature
- US20170085161A1 STARTING CURRENT REDUCTION IN INDUCTION MOTORS Public/Granted day:2017-03-23
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