Sealing arrangement

Details Sealing arrangement Sealing arrangement

2008-03-25

2008-03-25

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Resilient, flexible, or resiliently biased

Reexamination Certificate

active

07347662

ABSTRACT:
A sealing arrangement between annular components2, 4, for example in a gas turbine engine, comprises an L-shaped sealing ring20. The sealing ring20has a first limb24received in a groove28in the first component2, and a second limb26having a sealing face30which is maintained in contact with an abutment surface32on the second component4under the resilient action of the sealing ring20. The second limb26is exposed to the pressure in a chamber34which assists the resilience of the sealing ring20in maintaining sealing contact between the sealing face30and the abutment surface32. Bleed holes38are provided.

REFERENCES:
patent: 5738490 (1998-04-01), Pizzi
patent: 6076835 (2000-06-01), Ress et al.
patent: 1 245 790 (2002-10-01), None
patent: 2 102 897 (1983-02-01), None

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