IP Library Granted Patent US 7,798,780
Granted Patent B2
US 7,798,780 · App. 11/311,053 · Granted Sep 21, 2010

Modularly constructed rotorblade and method for construction

Assignee: General Electric Company
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Quick Facts
Patent No.
US 7,798,780
App. No.
11/311,053
Granted
Sep 21, 2010
Kind
B2
Abstract

Disclosed is a modularly constructed rotorblade including a leading and a trailing edge, including a plurality of rotorblade sections in bonded association, and at least one bonding line disposed away from continuous contact with the leading edge and the trailing edge.

Claims (31)

1. A modularly constructed rotorblade including a leading and a trailing edge, the rotorblade comprising:

at least one spine subassembly and at least one transverse subassembly moveably associated with said spine subassembly;

a plurality of rotorblade sections in adhesively bonded association via an adhesive disposed between said plurality of rotorblade sections, each of said plurality of rotorblade sections being constructed of a material that is substantially the same; and

at least one bonding line created by said adhesively bonded association and disposed at an external surface of the rotorblade between and in contact with adjacent sections of said rotorblade sections, and positioned in a blade chord area between the leading edge and the trailing edge of the rotorblade, and in parallel with the spine subassembly.

2. A rotorblade according to claim 1 , wherein said plurality of rotorblade sections are at least three rotorblade sections delimited at said external surface of the rotorblade.

3. A rotorblade according to claim 1 , wherein said at least one bonding line is at least three bonding lines disposed at said external surface of the rotorblade.

4. A rotorblade according to claim 1 , wherein said plurality of blade sections includes internal features that aid in blade structure, lightning protection, and erosion protection.

5. The rotorblade according to claim 1 , wherein the bonding line extends along substantially a longitudinal length of the rotorblade.

6. The rotorblade according to claim 1 , wherein the bonding line extends along at least half a longitudinal length of the rotorblade.

7. A modularly constructed rotorblade including a leading and a trailing edge, the rotorblade comprising,

a plurality of rotorblade sections in bonded association, each of said plurality of rotorblade sections being constructed of a material that is substantially the same; and

at least one bonding line created by said bonded association and disposed at an external surface of the rotorblade between and in contact with adjacent sections of said rotorblade sections, and positioned in a blade chord area between the leading edge and the trailing edge of the rotorblade,

wherein said plurality of rotorblade sections are associated with an internal blade frame, said internal blade frame including at least one spine subassembly in parallel with the bonding line and at least one transverse subassembly moveably associated with said spine subassembly.

8. A rotorblade according to claim 7 , wherein said at least one subassembly includes physical features used for blade alignment, subassembly lifting, shipping support, and/or handling.

9. A rotorblade according to claim 7 , wherein said plurality of rotorblade sections are associated with said at least one subassembly along said at least one bonding line.

10. A rotorblade according to claim 7 , wherein said plurality of rotorblade sections are bonded to said at least one subassembly along said at least one bonding line.

11. A rotorblade according to claim 7 , wherein said at least one spine subassembly includes a plurality of spine subassembly portions.

12. A rotorblade according to claim 7 , wherein said at least one subassembly includes at least one flex point.

13. A method for constructing rotorblades, the method comprising:

associating a plurality of rotorblade sections with an internal blade frame, wherein said internal blade frame includes at least one subassembly, and wherein each of said plurality of rotorblade sections being constructed of a material that is substantially the same; and

bonding said plurality of blade sections along at least one bonding line, wherein said at least one bonding line is disposed at an external surface of the rotorblade between and in contact with adjacent sections of said rotorblade sections, and extends continuously within the blade chord area from a first end adjacent to a rotorblade hub to a distal end of a rotorblade tip.

14. A method according to claim 13 , further including associating at least one of said plurality of blade sections with said at least one subassembly along said at least one bonding line.

15. A method according to claim 13 , further including bonding at least one of said plurality of blade sections to said at least one subassembly along said at least one bonding line.

16. A method for constructing rotorblades, the method comprising:

associating at least one of a plurality of rotorblade sections with a portion of an internal blade frame to create a plurality of assembled rotorblade portions, wherein said blade frame includes at least one subassembly, and wherein each of said plurality of rotorblade sections being constructed of a material that is substantially the same; and

bonding said plurality of assembled rotorblade portions along at least one bonding line, wherein said at least one bonding line is disposed at an external surface of the rotorblade between and in contact with adjacent sections of said rotorblade sections, and positioned in a blade chord area between a leading edge and a trailing edge of a rotorblade to extend continuously from a first end adjacent to a rotorblade hub to a distal end of a rotorblade tip.

17. A method according to claim 16 , further including associating at least one of said plurality of blade sections with said at least one subassembly along said at least one bonding line.

18. A method according to claim 16 , further including bonding at least one of said plurality of blade sections to said at least one subassembly along said at least one bonding line.

19. A modularly constructed rotorblade including a leading and a trailing edge, the rotorblade comprising:

a plurality of rotorblade sections in adhesively bonded association via an adhesive disposed between said plurality of rotorblade sections; and

at least one bonding line created by said adhesively bonded association, which is disposed between said rotorblade sections, disposed to intersect at least one of the leading edge and the trailing edge at an external surface of the rotorblade and extends continuously within a blade chord area from a first end adjacent to a rotorblade hub to a distal end of a rotorblade tip.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2024
From: LM WIND POWER US TECHNOLOGY APS
To: GE INFRASTRUCTURE TECHNOLOGY LLC
Reel/Frame 066869/0770 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 9, 2023
From: GENERAL ELECTRIC COMPANY
To: LM WIND POWER US TECHNOLOGY APS
Reel/Frame 065531/0160 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 19, 2005
From: BAKHUIS, JAN WILLEM; BILLEN, ANDREW JOHN; VAN BREUGEL, SJEF; LIVINGSTON, JAMIE THOMAS
To: GENERAL ELECTRIC COMPANY
Reel/Frame 017395/0753 →
Continuity (1)
Related Publication 20070140858A1 · Jun 21, 2007