HELMHOLTZ DAMPER FOR A GAS TURBINE AND GAS TURBINE WITH SUCH HELMHOLTZ DAMPER
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United States of America Patent
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Jun 22, 2017
app pub date -
Dec 19, 2016
filing date -
Dec 18, 2015
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Abstract
A Helmholtz damper for a gas turbine is disclosed which includes a static resonator volume, which can be connected via a neck to an inner space of the gas turbine to damp pressure pulsations developing in the inner space. The static resonator volume can be changed in order to match resonances of the Helmholtz damper with the pressure pulsations. A simple and effective self-adjustment can be achieved via volume changing by at least one first element, which is exposed to a varying temperature within the gas turbine and undergoes a deformation, which depends on the varying temperature.
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