Alternator rotor, particularly for motor vehicles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 20, 1990
Grant Date -
N/A
app pub date -
Sep 9, 1988
filing date -
Sep 9, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The rotor comprises a shaft from which two facing pole plates extend radially, each having a plurality of radial pole fingers whose ends are bent towards the other pole plate and each of which extends between two adjacent fingers of the other pole plate. An excitation winding is situated between the plates coaxial with the shaft. At least one axial ventilation duct is formed in the shaft from which branch radial ducts in correspondence with the pole plates, the ducts communicating with the corresponding ventilation passages provided in each pole plate, which open into recesses defined between pairs of adjacent pole fingers.
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