Turbine of a gas turbine

摘要

A turbine of a gas turbine, in particular of a gas turbine aircraft engine, having a rotor that has at least one moving blade ring and having a stator that has at least one guide blade ring, moving blades of the, or each, moving blade ring and/or guide blades of the, or each, guide blade ring being fashioned as hollow blades having at least one cavity, wherein on at least one side of at least one moving blade and/or guide blade fashioned as a hollow blade, in a blade wall holes are made that connect the, or each, cavity to the surrounding environment of the respective moving blade and/or guide blade, so that the respective cavity can be used as a resonator or sound muffler in order to reduce the sound radiated by the turbine during operation.

主权项

1. A turbine of a gas turbine aircraft engine comprising:
a plurality of moving blades and guide blades, each of said moving blades and said guide blades having a radial height extending along a radial axis from a base to a tip of each of said moving blades and said guide blades, and being fashioned as hollow blades having a plurality of cavities, wherein each of said cavities extend along an entire radial height of each of said respective moving blades and said guide blades, at least one side of a blade wall of at least one of said moving blades or said guide blades defines a plurality of holes, said holes forming at least two separate strips extending in a radial direction along the entire radial height of each of said respective moving blades or said guide blades, wherein each of said strips includes a plurality of said holes, said holes including a plurality of radially aligned holes that extend along said radial axis and a plurality of transversely aligned holes that extend in a direction transverse to said radial axis, said at least two strips are each associated with a single one of said cavities and configured to connect a different one of said cavities to the surrounding environment of said respective moving blade or guide blade, so that the respective cavity can be used as a resonator or sound muffler to reduce sound radiated by the turbine during operation.