Measuring and testing – Vehicle chassis – Steering
Reexamination Certificate
2007-04-17
2007-04-17
McCall, Eric S. (Department: 2855)
Measuring and testing
Vehicle chassis
Steering
C073S035080
Reexamination Certificate
active
11216317
ABSTRACT:
An apparatus and method to sense the onset of combustion stability is presented. An electrode is positioned in a turbine combustion chamber such that the electrode is exposed to gases in the combustion chamber. The electrode may be integrated with an igniter. A control module applies a voltage potential to the electrode and detects a combustion ionization signal and determines if there is an oscillation in the combustion ionization signal indicative of the occurrence of combustion stability or the onset of combustion instability. The control module broadcasts a notice if the parameters indicate the combustion process is at the onset of combustion instability or broadcasts an alarm signal if the parameters indicate the combustion process is instable. Combustion parameters are adjusted to drive the combustion process towards stability.
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Barrett Jeff B.
Benson Kelly J.
Tozzi Luigi P.
Van Dyne Ed
McCall Eric S.
Reinhart Boerner Van Deuren P.C.
Woodward Governor Company
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