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US 4,904,890 AGranted
Bore pack exciter cooling system
AssigneeGeneral Electric Company
InventorsJames B. Archibald, Ernest L. Moore, Richard N. Dawson, Kenneth G. Herd
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Abstract
A gas cooling system for a bore pack exciter for a power generator in which high velocity, colder cooling gas is obtained from the region within the generator where the entering cooling gas is impelled by the generator fan, and means to direct part of that cooling gas from that flow through the bore pack exciter before return to the interior of the generator for recycling through the cooling unit.
Claims15
A gas cooling system for a bore pack exciter positioned adjacent to an electric generator to provide direct current power to the generator field comprising:
- a fan within said electric generator connected to one end of the shaft of said generator for rotation therewith;
- a cooling unit to extract heat from a cooling gas;
- means to provide said cooling gas to the interior of said power generator in an end region adjacent said fan;
- said fan imparting a maximum velocity to said cooling gas in said end region;
- a passageway to connect said maximum velocity cooling gas in said end region of said generator to the interior of said bore pack exciter;
- means within said bore pack exciter to direct the flow of said maximum velocity cooling gas fed by said fan and passing through said passageway to flow through the interior of said bore pack exciter to cool the interior thereof;
- means to return said cooling gas to the interior of said generator after passing through said bore pack exciter;
- and
- means to direct said returned cooling gas through and out of said generator;
- whereby said cooling gas is provided to said bore pack exciter from said end region of said generator by said fan at substantially the coolest temperature and highest velocity available within said generator.
7 more elements
Dependencies are inferred from the claim text.