Inner shroud for the stator blades of the compressor of a...

Details Inner shroud for the stator blades of the compressor of a... Inner shroud for the stator blades of the compressor of a...

2007-10-30

2007-10-30

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

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

Between axial flow runner and vane or vane diaphragm structure

C415S174400

Reexamination Certificate

active

10989354

ABSTRACT:
An inner shroud (6) for the stator blades (3) of the compressor of a gas turbine is a plastic component and includes certain additives, which may be concentrated in partial areas for specific functionality, and/or pre-manufactured inserts for sealing, ensuring sliding properties, wear protection and/or setting heat expansion. Such an inner shroud made of plastic material fulfills all requirements usually imposed on inner shrouds made of metal, while being simply producible and having low weight.

REFERENCES:
patent: 3849023 (1974-11-01), Klompas
patent: 4655682 (1987-04-01), Kunz et al.
patent: 5062767 (1991-11-01), Worley et al.
patent: 5421703 (1995-06-01), Payling
patent: 6425736 (2002-07-01), McMahon et al.
patent: 6790000 (2004-09-01), Wolf
patent: 19518203 (1995-12-01), None
patent: 10161292 (2003-06-01), None
patent: 0171329 (1986-02-01), None
patent: 0602631 (1994-06-01), None
patent: 1366075 (1974-09-01), None
patent: 2203197 (1988-10-01), None
European Search Report dated Dec 23, 2004.
German Search Report dated Jul. 8, 2004.

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