Interblade damper and seal for turbomachinery rotor

Details Interblade damper and seal for turbomachinery rotor Interblade damper and seal for turbomachinery rotor

1976-12-27

1978-07-18

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

416193A, 416221, 416500, F01D 526

Patent

active

041012453

ABSTRACT:
An interblade seal and vibration damper to be positioned in the damper cavity defined between a rotor disc, adjacent blades and adjacent blade platforms so as to seal across an interplatform gap by providing line contact between the damper and the platforms on opposite sides thereof for the full axial dimension of the cavity and with the damper shaped so as to have a low center of gravity for operational stability and which damper also responds to centrifugal force during rotor operation to establish damping friction between said damper and said platforms when the platforms move circumferentially.

REFERENCES:
patent: 3112915 (1963-12-01), Morris
patent: 3610778 (1971-10-01), Suter
patent: 3666376 (1972-05-01), Damlis
patent: 3709631 (1973-01-01), Karstensen et al.
patent: 3723023 (1973-03-01), Crick
patent: 3751183 (1973-08-01), Nichols et al.
patent: 3887298 (1975-06-01), Hess et al.
patent: 3936222 (1976-02-01), Asplund et al.
patent: 4029436 (1977-06-01), Shoup et al.

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