Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1976-12-06
1979-02-27
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310227, H02K 900
Patent
active
041421205
ABSTRACT:
A commutator motor constructed and arranged to provide cooling and removal of carbon dust produced during operation. The motor comprises a housing, a stator consisting of a plurality of laminations embedded in the housing and defining at least a pair of circumferentially spaced yoke portions and pole portions intermediate the yoke portions. The rotor is rotatably supported in the stator cavity. The yoke portions are of a predetermined configuration defining first axial channels having inlet and outlet openings to facilitate flow of cooling medium through the channels in one direction. A commutator chamber is provided at one axial end of the rotor and separated from the rotor cavity by a circumferentially extending wall. A series of second axial channels are provided outboard of the pole portions communicating with the commutator chamber at one axial end and a fan is provided at the other end of the motor to circulate a cooling medium through the second channels and commutator chamber in an axial direction opposite the direction of flow of the cooling medium through the first channels.
REFERENCES:
patent: 1892997 (1933-01-01), Oldenburg
patent: 2315177 (1943-03-01), Zadnik
patent: 2729758 (1956-01-01), Knapp
patent: 3302047 (1967-01-01), Short
patent: 3486055 (1969-12-01), Lipstein
patent: 3921017 (1975-11-01), Hallerback
patent: 3932929 (1976-01-01), Hallerback
patent: 3982146 (1976-09-01), Hokky
AB Electrolux
Renz Jr. Eugene E.
SKF Industrial Trading and Development Company
Skudy R.
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