Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1990-02-14
1992-03-03
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 68D, H02K 906, H02K 1100
Patent
active
050935917
ABSTRACT:
An alternating current generator with a pulley (17) for transmitting driving force from an engine to a rotor and/or to an auxiliary machine, having an external axial fan (18), rotating unitedly with the pulley (17), for drawing external air into the inside of the AC generator through air intake holes provided on both covers of the AC generator housing. The pulley (17) has air-intake vents (17a) axially extending through the pulley to permit relatively cold air to pass therethrough. At each such vent (17a), a guide member (17b) between the blades of the external axial fan (18) and the air intake holes directs the relatively cold air drawn in by the axial fan, to cool the interior components of the AC generator. The guide members (17b) further serve to shut out the outside air that has been heated from having passed near the outer surface of the housing.
REFERENCES:
patent: 1998087 (1935-04-01), Koch, Jr.
patent: 2057196 (1936-10-01), Koch, Jr.
patent: 3175109 (1961-06-01), Stone
patent: 4184804 (1980-01-01), Inagaki et al.
patent: 4476405 (1984-10-01), Komurasaki
patent: 4604538 (1986-08-01), Merrill et al.
patent: 4612419 (1979-07-01), DeAngelis
patent: 4952828 (1990-08-01), Yu-Fang et al.
Katashima Tadashi
Kitamura Yutaka
Komurasaki Keiichi
Yano Tsuyoshi
Haszko Dennis R.
Mitsubishi Denki & Kabushiki Kaisha
Stephan Steven L.
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