Rotor of a turbogenerator having pressure generating and deflect

Details Rotor of a turbogenerator having pressure generating and deflect Rotor of a turbogenerator having pressure generating and deflect

1997-12-22

1999-04-13

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 58, 310 59, 310 60R, 310 62, 310 63, H02K 900, H02K 908

Patent

active

058941789

ABSTRACT:
In an air-cooled electrical machine having reverse cooling in a closed cooling circuit, a two-stage blade cascade for the optimum incident flow of cooling air to the rotor (4) and the rotor winding (29) is provided between a rotor cap plate (22) and a rotor shaft (28). The first blade cascade stage (30b) in the direction of flow is a deceleration cascade having essentially pressure-generating properties, and the following blade cascade stage (30a) in the direction of flow is a deceleration cascade having essentially deflecting properties. The flow cascade is provided radially on the inside with a sealing shroud band (32).

REFERENCES:
patent: 4465947 (1984-08-01), Armor et al.
patent: 4910958 (1990-03-01), Kreitmeier
patent: 5705865 (1998-01-01), Ishida et al.

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