Electrical synchronous machine with smooth poles and with a constant air gap
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United States of America Patent
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-
Oct 8, 1996
Grant Date -
N/A
app pub date -
Apr 25, 1995
filing date -
Apr 29, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrical synchronous machine of the type with smooth poles and with a constant air gap, comprising a rotor (2) in which the coils are accommodated in notches (4) extending from the periphery of the rotor and which is provided with a device of axial and if need be radial ventilation channels (8) and (9) and wherein the notches (4) over a polar pitch are directed in parallel relation to the axis of the pole and their depth (a) is chosen so as to increase the cross-section of the central zone defined by the bottoms of the notches (4) and comprising axial ventilation channels (8).
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