Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2011-08-23
2011-08-23
Leung, Quyen (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S090000, C384S476000, C384S624000
Reexamination Certificate
active
08004129
ABSTRACT:
The aim is to avoid damaging lubricating-film discharges occurring via bearings (WL) in electrical machines. For this reason, provision is made for a current to be forced to flow through the bearing (WL) specifically, with the aid of a current source (IQ). The current then flows from one of the two bearing components via the lubricating film to the other bearing component. Alternating currents are particularly suitable since the lubricating film is conductive, so that the capacitance defined by the lubricating film cannot be charged, or can be charged only slightly.
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Binder Andreas
Schrepfer Armin
Wolf Jürgen
Day Ursula B.
Feiereisen Henry M.
Leung Quyen
Scheuermann David W.
Siemens Aktiengesellschaft
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