Claims
- 1. A turbine or compressor wheel made of composite material, characterized in that it comprises a reinforcing structure formed by the stacking of a plurality of helicoidal textures "screwed" one in the other, each texture being formed by a spirally woven band with helicoidal warp yarns and weft yarns substantially perpendicular to axis of the textures.
- 2. A turbine or compressor wheel made of composite material, said wheel comprising:
- a reinforcing structure formed by a plurality of stacked helicoidal textures, with the turns of said textures being in contiguous relationship, each texture being formed by a spirally woven band with helicoidal warp yarns and weft yarns which extend substantially perpendicularly to the axis of the texture; and
- a matrix material infiltrated within said reinforcing structure.
- 3. A turbine or compressor wheel as claimed in claim 2, wherein said helicoidal textures are formed by bands of different widths.
- 4. A turbine or compressor wheel as claimed in claim 3, wherein said helicoidal textures have the same inner diameter.
- 5. A turbine or compressor wheel as claimed in claim 2, wherein at least one of said helicoidal textures has a non-uniform weight per square meter.
- 6. A turbine or compressor wheel as claimed in claim 5, wherein said at least one helicoidal texture has a weight per square meter which varies from its inner diameter to its outer diameter.
- 7. A turbine or compressor wheel as claimed in claim 6, wherein said at least one helicoidal texture shows a higher density of helicoidal warp yarns on its small diameter side portion.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8412740 |
Aug 1984 |
FRX |
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Parent Case Info
This is a divisional of co-pending application Ser. No. 764,662 filed on Aug. 9, 1985, now U.S. Pat. No. 4,709,457.
US Referenced Citations (7)
Divisions (1)
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Number |
Date |
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Parent |
764662 |
Aug 1985 |
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