Rotor of an electrical machine having a directly cooled rotor wi

Details Rotor of an electrical machine having a directly cooled rotor wi Rotor of an electrical machine having a directly cooled rotor wi

1985-08-12

1987-01-06

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 61, 310201, 310254, H02K 132

Patent

active

046349103

ABSTRACT:
A rotor of an electrical machine having directly cooled rotor winding, including winding conductors forming a conductor bundle, located one above the other in respective grooves and fastened therein by respective groove wedges, the winding conductors each having at least two adjacent half cooling ducts extending in the longitudinal direction of the conductors. Provided in a central section of the rotor assembly are two gas outlets offset relative to one another in a peripheral direction of the rotor and in which the cooling ducts are interrupted by separating means. At each interruption point, the respective half cooling duct is in connection with a respective radially extending duct, which ends at the surface of the rotor. In order to avoid increases in temperature in the region of the gas outlet, the gas outlets of a conductor bundle are offset retative to one another in the longitudinal direction of the conductors. The radial ducts emerge into holes penetrating the groove wedges approximately radially.

REFERENCES:
patent: 2986664 (1961-05-01), Willyoung et al.
patent: 2990486 (1961-06-01), Willyoung
patent: 3119033 (1964-01-01), Horsley et al
patent: 4010394 (1977-03-01), Lorch et al.
patent: 4152610 (1979-05-01), Wallenstein

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