Invention Grant
- Patent Title: Cage rotor with starting bar
- Patent Title (中): 带起动杆的笼式转子
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Application No.: US13391147Application Date: 2010-08-13
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Publication No.: US08963394B2Publication Date: 2015-02-24
- Inventor: Klaus Büttner , Klaus Kirchner , Michael Müller
- Applicant: Klaus Büttner , Klaus Kirchner , Michael Müller
- Applicant Address: unknown München, Ingolstadt
- Assignee: Siemens AG
- Current Assignee: Siemens AG
- Current Assignee Address: unknown München, Ingolstadt
- Agency: Henry M. Feiereisen LLC
- Priority: EP09168157 20090819
- International Application: PCT/EP2010/061820 WO 20100813
- International Announcement: WO2011/020788 WO 20110224
- Main IPC: H02K17/00
- IPC: H02K17/00 ; H02K17/20 ; B22D19/00 ; H02K15/00

Abstract:
The invention relates to a cage rotor for an asynchronous machine (1) comprising starting bars for improving the starting behavior. The invention further relates to a method for producing such a cage rotor. In order to achieve as great an efficiency as possible, the cage rotor comprises a laminated rotor core (2) having grooves (3) and operating bars (5; 6; 7; 8; 15) disposed in the grooves (3) and contacting the laminated rotor core (2) directly on the inner groove base as seen in the radial direction of the cage rotor, wherein the operating bars (5; 6; 7; 8; 15) comprise partial cladding (9; 10; 11) enclosing an outer surface of the operating bars (5; 6; 7; 8; 15) as seen in the radial direction (12) of the cage rotor, wherein the material of the operating bars (5; 6; 7; 8; 15) comprises a greater specific conductivity than the material of the partial cladding (9; 10; 11).
Public/Granted literature
- US20120187796A1 CAGE ROTOR WITH STARTING BAR Public/Granted day:2012-07-26
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