Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1979-05-25
1981-10-06
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 58, 310 68D, 310 91, 310239, H02K 928
Patent
active
042937884
ABSTRACT:
To provide a fresh air duct for cooling of a brush holder-voltage regulator combination without introducing additional axial length to the overall alternator-regulator structure, a fresh air duct extends radially from the end bell of the alternator which is adjacent the slip rings, and the brush holder and voltage regulator are secured to a common support plate to form a single subassembly, the support plate covering an opening in the end bell of the alternator to permit introduction of the brush holder-voltage regulator assembly as a unit through the opening from the outside, positioning the brushes within the brush holder against the slip rings, and closing off the end bell to prevent ingress of hot air which may be in the engine compartment of the vehicle with which the alternator is to be used, so that the cooling air for the slip rings, brushes and the transistor voltage regulator is supplied as a stream of fresh air from the cooling air inlet stub which has its outlet positioned close to the brush holder-voltage regulator assembly.
REFERENCES:
patent: 3041484 (1962-06-01), Freer
patent: 3673447 (1972-06-01), Zubach
patent: 3731126 (1973-05-01), Hagenlocher
Robert & Bosch GmbH
Skudy R.
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