Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1977-09-02
1981-02-10
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 58, H02K 928
Patent
active
042504228
ABSTRACT:
A cooling device for an electrical rotating machine is provided. The cooling device comprises; a yoke of an electric motor, end brackets and a rocker positioned in the outer circumferential portion of a commutator and fastened through the mediary of ventilation spaces to the inner circumference of one of the aforesaid end brackets. The cooling device further comprises; a screening plate for controlling the direction of cooling air being blown and a strength thereof, which is disposed between one end of the aforesaid rocker and the yoke; and a forcibly blowing device. With this cooling device, the cooling air is introduced through ventilating spaces defined radially inwardly of the aforesaid one end bracket into an electric motor by the forcibly blowing device, thereby forcibly cooling the surface of the commutator and the peripheral portion thereof.
REFERENCES:
patent: 920725 (1909-05-01), Callan
patent: 1719407 (1929-07-01), Trudeau
patent: 2315177 (1943-03-01), Zadink
patent: 2560784 (1951-07-01), Sears
patent: 2703372 (1955-03-01), Savage
patent: 2744205 (1956-05-01), Kalikow
patent: 3673447 (1972-06-01), Zumbach
patent: 3791774 (1974-02-01), Vonk
patent: 4119873 (1978-10-01), Sakur et al.
Motegi Shoji
Saito Shigeki
Tagima Fumio
Tahara Kazuo
Agency of Industrial Science and Technology
Skudy R.
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