Permanent magnet rotor with projections for fixing the...

Electrical generator or motor structure – Dynamoelectric – Rotary

Reexamination Certificate

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Reexamination Certificate

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08063530

ABSTRACT:
A permanent magnet rotor includes a rotor shaft, a rotor packet that is secured to the rotor shaft and that has a radially inner region and a radially outer region, reception pockets provided in the rotor packet between its radially inner region and its radially outer region and permanent magnets that are positioned in the reception pockets. Clearances are provided in the radially inner region of the rotor packet. The permanent magnets are fixed in the respectively associated reception pocket by means of a projection of a part region of the inner region, wherein the part region is arranged between the respective clearance and the respective reception pocket.

REFERENCES:
patent: 4486679 (1984-12-01), Jones
patent: 5864191 (1999-01-01), Nagate et al.
patent: 6707206 (2004-03-01), Chang
patent: 7605510 (2009-10-01), Okuma et al.
patent: 7683518 (2010-03-01), Yoshikawa et al.
patent: 2006/0119205 (2006-06-01), Sasaki
patent: 4423840 (1996-01-01), None
patent: 19851883 (2000-05-01), None
patent: 102005041676 (2007-03-01), None
patent: 1009085 (2006-06-01), None
patent: 06-133479 (1994-05-01), None
International Search Report in PCT/EP2007/062962, dated Apr. 9, 2008.
German Office Action in priority Application No. 102006056873.7, Dated Jun. 28, 2007.

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