IP Library Granted Patent US 7,427,189
Granted Patent B2
US 7,427,189 · App. 11/352,777 · Granted Sep 23, 2008

Wind turbine rotor blade

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Quick Facts
Patent No.
US 7,427,189
App. No.
11/352,777
Granted
Sep 23, 2008
Kind
B2
Abstract

A wind turbine rotor blade includes a pressure side sparcap having a carbon fiber reinforced section extending substantially a full longitudinal length of the pressure side sparcap and a suction side sparcap having a glass fiber reinforced section extending substantially a full longitudinal length of the suction side sparcap.

Claims (10)

1. A wind turbine rotor blade, comprises:

a pressure side sparcap having a carbon fiber reinforced section extending substantially a full longitudinal length of said pressure side sparcap, wherein said pressure side sparcap further comprises a glass fiber reinforced section extending substantially the full longitudinal length of said pressure side sparcap, said glass fiber reinforced section is radially outward from said carbon fiber reinforced section; and

a suction side sparcap having a glass fiber reinforced section extending substantially a full longitudinal length of said suction side sparcap.

2. The wind turbine rotor blade according to claim 1 wherein said pressure side sparcap is fabricated from a carbon fiber reinforced matrix.

3. The wind turbine rotor blade according to claim 1 wherein said suction side sparcap is fabricated from a glass fiber reinforced matrix.

4. The wind turbine rotor blade according to claim 1 further comprising a transition zone between said carbon fiber reinforced section and said glass fiber reinforced section, wherein a quantitative ratio of carbon fibers and glass fibers varies continuously within said transition zone.

5. The wind turbine rotor blade according to claim 1 further comprising at least one spar web disposed between said pressure side sparcap and said suction side sparcap.

6. A prefabricated pressure side sparcap for a wind turbine rotor blade, said pressure side sparcap having a carbon fiber reinforced section extending substantially a full longitudinal length of said pressure side sparcap, wherein said pressure side sparcap further comprises a glass fiber reinforced section extending substantially the full longitudinal length of said pressure side sparcap, said glass fiber reinforced section is radially outward from said carbon fiber reinforced section.

7. The prefabricated pressure side sparcap according to claim 6 wherein said pressure side sparcap is fabricated from a carbon fiber reinforced matrix.

8. The prefabricated pressure side sparcap according to claim 6 further comprising a transition zone between said carbon fiber reinforced section and said glass fiber reinforced section, wherein a quantitative ratio of carbon fibers and glass fibers varies continuously within said transition zone.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 17, 2023
From: GENERAL ELECTRIC COMPANY
To: GE INFRASTRUCTURE TECHNOLOGY LLC
Reel/Frame 065727/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 13, 2006
From: EYB, ENNO
To: GENERAL ELECTRIC COMPANY
Reel/Frame 017577/0216 →