Electrical generator or motor structure – Dynamoelectric – Linear
Reexamination Certificate
2011-02-22
2011-02-22
Hanh, Nguyen N (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Linear
Reexamination Certificate
active
07893569
ABSTRACT:
A linear electric motor including a primary part having a flux guiding element on the end faces of the primary part, a three-phase winding on the primary part that produces a first magnetic field and a permanent magnet on each end face that produces a second magnetic field that is superimposed on the first field to reduce force ripple is disclosed. The primary part has tooth modules and also end-tooth modules. The end-tooth modules have no winding, are located on the end face, and are smaller in volume than and shaped differently from the tooth modules. The primary part is separated from a secondary part by an air gap, and the end-tooth modules are separated from the secondary part by an additional air gap.
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Jajtic Zeljko
Matscheko Gerhard
Volmert Christian
Day Ursula B.
Feiereisen Henry M.
Hanh Nguyen N
Siemens Aktiengesellschaft
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