Self-supporting rotor coil for dc-machine
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United States of America Patent
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-
Sep 24, 1985
Issued Date -
N/A
app pub date -
Jul 1, 1981
filing date -
Aug 9, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cylindrical, ironless, self-supporting rotor coil for use in an electrical dc-machine is disclosed. The coil is formed by at least one layer of wire, the wire having a conductive core, an insulating layer surrounding that core and an outer layer comprising a supporting material capable of being softened and subsequently solidified to make the coil self-supporting. The outer layer of the wire is at least in part electrically conductive in order to reduce the production of sparks in the commutator of the dc-machine.
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