Power plants – Combustion products used as motive fluid – Combustion products generator
Reexamination Certificate
2007-03-13
2007-03-13
Casaregola, Louis J. (Department: 3746)
Power plants
Combustion products used as motive fluid
Combustion products generator
C060S791000, C060S793000
Reexamination Certificate
active
10742210
ABSTRACT:
Two spool gas turbine engines are often used to drive variable speed loads, such as an electric generator, or the fan/propeller of aircraft engines. The gas turbine engine must be designed to withstand transient speed and temperature conditions which are encountered when sudden changes to the load on the generator, fan, or propeller occur. By adding a relatively small motor/generator to the gas generator spool of the gas turbine engine, the compressor speed and airflow can be quickly adjusted to compensate for external load changes. This reduces the severity and duration of the transient conditions, resulting in decreased operation and reliability problems such as overspeed, compressor surge, and high turbine temperature. The motor/generator may also be used as an engine starting device.
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Luebs Alan B.
McGinley Ray M.
Casaregola Louis J.
Honeywell International , Inc.
Ingrassia Fisher & Lorenz
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