High-speed generator for a gas turbine engine

Details High-speed generator for a gas turbine engine High-speed generator for a gas turbine engine

1985-11-18

1987-06-02

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With lubricators

184 611, F02C 706, F01M 900

Patent

active

046692630

ABSTRACT:
In the arrangement of a high-speed generator having its rotor shaft direct-coupled to the main shaft of a gas turbine engine, the upper space of a oil tank fixed to the generator communicates to a cavity formed between the high-speed generator and the air intake of the gas turbine engine, aside from the normal oil return path; and the cavity is open to the atmosphere through the upper space of the oil tank, thereby eliminating any difference in pressure between the cavity and the inside of the high-speed generator. With elimination of any pressure differences, the development of air flow at a tiny gap between the rotor and the stator of the high-speed generator can be avoided, resulting in successful prevention of oil leakage from the rotor bearing into the tiny gap and no drop in the efficiency of the high-speed generator.

REFERENCES:
patent: 2791090 (1957-05-01), Hooker
patent: 3147913 (1964-09-01), Davies et al.
Burgess, Neil, "Design Analysis of the General Electric TG-180 Turboset" Aviation Week, Jul. 14, 1947.

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