Damper seal

Details Damper seal Damper seal

2006-04-04

2006-04-04

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

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

Axially extending shroud ring or casing

C416S500000, C415S119000

Reexamination Certificate

active

07021898

ABSTRACT:
A damper seal7, 21, 31is provided in order to act within a mounting platform structure3for turbine blades1, 2. The damper seal7, 21, 31includes an entrant surface8, 28, 38incorporating a number of paths22, 32to enable coolant flow across the entrant surface8, 28, 38. The damper seal7, 21, 31acts to plug an aperture9in the structure3between adjacent blades1, 2and damper detrimental vibrations in the structure3which could damage the blades1, 2. Thus, whilst contact portions23, 33are in vibrational coupling contact with the aperture9, coolant airflow through the paths22, 32enables cooling of the seal7, 21, 31and areas of the structure3about the aperture9.

REFERENCES:
patent: 2656147 (1953-10-01), Brownhill et al.
patent: 4767260 (1988-08-01), Clevenger et al.
patent: 4872812 (1989-10-01), Hendley et al.
patent: 5156528 (1992-10-01), Bobo
patent: 5531457 (1996-07-01), Tibbott et al.
patent: 0 509 838 (1992-10-01), None

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