Device and method for reducing one or more resonant vibrations o

Details Device and method for reducing one or more resonant vibrations o Device and method for reducing one or more resonant vibrations o

1992-09-28

1993-10-26

Kwon, John T.

Rotary kinetic fluid motors or pumps

Method of operation

415119, 415914, F01D 510

Patent

active

052560317

ABSTRACT:
In a device for reducing resonant vibrations of rotor blades in turbomachines, cavities for the selective disturbance of the flow are arranged between the rotating blade tip and that wall of the casing which bounds the flow duct. These cavities are arranged in the casing wall in the region of the blade tips and comprise a plurality of cavities arranged over the circumference. Their open cross section facing the flow duct is arranged in the axial planes bounded by the inlet edges and outlet edges of the rotor blades.

REFERENCES:
patent: 4086022 (1978-04-01), Freeman et al.
patent: 4540335 (1985-09-01), Yamaguchi et al.
patent: 4714406 (1987-12-01), Hough
patent: 4781530 (1988-11-01), Lauterbach et al.

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