Rotary electric machine having variably-dimensioned housing vent

Details Rotary electric machine having variably-dimensioned housing vent Rotary electric machine having variably-dimensioned housing vent

1994-07-14

1997-07-22

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 51, 310 89, H02K 900, H02K 906, H02K 524, H02K 520

Patent

active

056506759

ABSTRACT:
A vehicle alternating current generator increasing the flow of cooling air therethrough and reduces whizzing sounds from cooling windows surrounding the generator's fan. This is done by inclining guide walls separating the cooling windows so that the angle of inclination thereof in the radial direction of the generator is larger the closer the windows are to the forward edge of the housing supports and smaller the closer the windows are to the backward edge of the housing supports. Also, the cooling windows narrow the closer they are to the supports, and are widest in the middle between two adjacent supports. Further, the axial length of the windows may be shorter the closer they are to the supports, and longer in the middle between two adjacent supports.

REFERENCES:
patent: 1136142 (1915-04-01), Kerr
patent: 1534721 (1925-04-01), Lasche
patent: 2157002 (1939-05-01), Moss
patent: 2291478 (1942-07-01), La Bour
patent: 2439933 (1948-04-01), Jenkins
patent: 3973872 (1976-08-01), Seleznev et al.
patent: 5095235 (1992-03-01), Kitamura

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