Title:
LIMITING RADIAL EXPANSION IN ROTOR BALANCING
Document Type and Number:
WIPO Patent Application WO/2015/002700
Kind Code:
A3
Abstract:
A rotor including: a shaft; a structure comprising at least one end ring and rotor bars, wherein at least the end ring comprises a material subject to expansion or movement radially outward from the shaft upon a rotor balancing process that involves spinning of the structure; a core that at least partially encloses the rotor bars; and means for limiting the expansion or movement of the structure radially outward. A method including: providing a structure comprising at least one end ring and rotor bars, wherein at least the end ring comprises a material subject to expansion or movement radially outward from the shaft upon spinning of the structure; assembling a rotor from the structure and a core, the core at least partially enclosing the rotor bars; spinning the rotor in a rotor balancing process; and limiting the expansion or movement of the structure radially outward in the rotor balancing process.
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Inventors:
BARTON AUGUSTO E (US)
Application Number:
PCT/US2014/039020
Publication Date:
March 12, 2015
Filing Date:
May 21, 2014
Export Citation:
Assignee:
TESLA MOTORS INC (US)
International Classes:
H02K1/22
Foreign References:
US20120248901A1 | 2012-10-04 | |||
US20110062819A1 | 2011-03-17 | |||
US20130020899A1 | 2013-01-24 | |||
US4064410A | 1977-12-20 | |||
US5886443A | 1999-03-23 |
Attorney, Agent or Firm:
SODERBERG, J. Richard (Palo Alto, California, US)
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