Vibration damping for turbine blades

Details Vibration damping for turbine blades Vibration damping for turbine blades

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 25/06 (2006.01) F01D 5/26 (2006.01)

Patent

CA 2162933

In a device for damping blade vibrations of an axial-flow turbomachine, the ends of the rotating blades form a seal toward the flow-limiting wall of a turbine casing. A ring of permanently magnetic material is attached to this flow-limiting wall of the turbine casing in the radial direction opposite the blade ends, which ring consists of at least one or more sectional rings of the same or different magnetic polarization. The blade ends are each provided with a cover plate which is made of a material which is a good electrical conductor.

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