Vane assembly including two- and three-dimensional arrangements of continuous fibers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-003/04
F01D-009/04
F01D-005/14
F01D-005/28
B29C-070/24
B29C-070/22
F01D-025/28
B29L-031/08
출원번호
US-0894555
(2014-05-27)
등록번호
US-10006301
(2018-06-26)
국제출원번호
PCT/US2014/039484
(2014-05-27)
국제공개번호
WO2014/197233
(2014-12-11)
발명자
/ 주소
Riehl, John D.
출원인 / 주소
UNITED TECHNOLOGIES CORPORATION
대리인 / 주소
Carlson, Gaskey & Olds, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
12
초록▼
A vane assembly includes a plurality of airfoils that extend from a first end to a second, opposed end. A first platform is at the first end and is joined to the plurality of airfoils. A second platform is at the second end and is joined to the plurality of airfoils. At least one of the first platfo
A vane assembly includes a plurality of airfoils that extend from a first end to a second, opposed end. A first platform is at the first end and is joined to the plurality of airfoils. A second platform is at the second end and is joined to the plurality of airfoils. At least one of the first platform, the second platform and the plurality of airfoils include a three-dimensional arrangement of continuous fibers and at least one different one of the first platform, the second platform and the plurality of airfoils include a two-dimensional arrangement of continuous fibers.
대표청구항▼
1. A vane assembly comprising: a plurality of airfoils extending from a first end to a second, opposed end;a first platform at the first end, the first platform being joined to the plurality of airfoils;a second platform at the second end, the second platform being joined to the plurality of airfoil
1. A vane assembly comprising: a plurality of airfoils extending from a first end to a second, opposed end;a first platform at the first end, the first platform being joined to the plurality of airfoils;a second platform at the second end, the second platform being joined to the plurality of airfoils, at least one of the first platform, the second platform and the plurality of airfoils including a three-dimensional arrangement of continuous fibers and at least one different one of the first platform, the second platform and the plurality of airfoils including a two-dimensional arrangement of continuous fibers, the second platform being a hollow structure including walls that define an interior cavity that opens at opposed ends;wherein the walls include a first portion extending around the interior cavity and attachment portions protruding outwardly from the first portion, and each of the attachment portions includes a pair of coextending spaced-apart walls, between which one of the plurality of airfoils is received. 2. The vane assembly as recited in claim 1, wherein the three-dimensional arrangement of fibers is a Pi-section having a wall and a plurality of legs protruding from one side of the wall. 3. The vane assembly as recited in claim 2, wherein the wall is the first platform and the plurality of legs is the plurality of airfoils. 4. The vane assembly as recited in claim 1, wherein the first platform and the plurality of airfoils include the three-dimensional arrangement of continuous fibers. 5. The vane assembly as recited in claim 1, wherein the walls of the hollow structure include the three-dimensional arrangement of continuous fibers. 6. The vane assembly as recited in claim 1, wherein the hollow structure is joined with the plurality of airfoils by two-dimensional fabric plies. 7. The vane assembly as recited in claim 1, wherein at least one of the first platform and the second platform is joined to the plurality of airfoils at a distinct joint in which there is fiber discontinuity with respect to continuous fibers of the at least one of the first platform and the second platform and continuous fibers of the plurality of airfoils. 8. The vane assembly as recited in claim 1, wherein the first platform, the second platform and the plurality of airfoils are each formed of a fiber-reinforced organic matrix material. 9. The vane assembly as recited in claim 1, wherein the first platform, the second platform and the plurality of airfoils include transition areas there between that are free of noodle zones, the noodle zones being a plurality of stacked fiber plies each having a two-dimensional arrangement of continuous fibers, with an enlarged non-fiber area at a radius where the plurality of stacked fiber plies bend. 10. The vane assembly as recited in claim 1, wherein: the three-dimensional arrangement of fibers includes a fiber repeat unit U3D having first continuous fibers F13D and second continuous fibers F23D that extend transversely to the first continuous fibers F13D with respect to their longitudinal axes, and third continuous fibers F33D that extend orthogonally to the first continuous fibers F13D and the second continuous fibers F23D with respect to their longitudinal axes; andthe two-dimensional arrangement of fibers includes a fiber repeat unit U2D having first continuous fibers F12D and second continuous fibers F22D that extend transversely to the first continuous fibers F12D with respect to their longitudinal axes, and the two-dimensional arrangement of fibers is free of any fibers that extend orthogonally to the first continuous fibers F12D and the second continuous fibers F22D with respect to their longitudinal axes. 11. The vane assembly as recited in claim 1, wherein the vane assembly is located in the core flow path of a gas turbine engine. 12. A vane assembly comprising: a plurality of airfoils extending from a first end to a second, opposed end;a first platform at the first end, the first platform being joined to the plurality of airfoils; a second platform at the second end, the second platform being joined to the plurality of airfoils, at least one of the first platform, the second platform and the plurality of airfoils including a three-dimensional arrangement of continuous fibers and at least one different one of the first platform, the second platform and the plurality of airfoils including a two-dimensional arrangement of continuous fibers; wherein a Pi-section joins at least one of the first platform and the second platform with the plurality of airfoils, the Pi-section having a wall and a plurality of legs protruding from one side of the wall, the wall being interfacially joined to the at least one of the first platform and the second platform, and the plurality of legs being interfacially joined with the plurality of airfoils. 13. A method of fabricating a vane assembly, the method comprising: forming a vane assembly with a plurality of airfoils extending from a first end to a second, opposed end, a first platform at the first end, the first platform being joined to the plurality of airfoils, a second platform at the second end, the second platform being a hollow structure including walls that define an interior cavity that opens at opposed ends, the second platform being joined to the plurality of airfoils, the forming including forming at least one of the first platform, the second platform and the plurality of airfoils with a three-dimensional arrangement of continuous fibers and at least one different one of the first platform, the second platform and the plurality of airfoils with a two-dimensional arrangement of continuous fibers;wherein the walls includes a first portion extending around the interior cavity and attachment portions protruding outwardly from the first portion, and each of the attachment portions includes a pair of coextending spaced-apart walls, between which one of the plurality of airfoils is received. 14. The method as recited in claim 13, wherein the forming includes a technique selected from the group consisting of resin transfer molding, fiber/resin preimpregnation and combinations thereof. 15. The method as recited in claim 13, wherein the first platform, the second platform and the plurality of airfoils are each formed of a fiber-reinforced organic matrix material. 16. The method as recited in claim 13, wherein the first platform, the second platform and the plurality of airfoils are each formed of a ceramic matrix material. 17. A method of fabricating a vane assembly, the method comprising: forming a vane assembly with a plurality of airfoils extending from a first end to a second, opposed end, a first platform at the first end, the first platform being joined to the plurality of airfoils, a second platform at the second end, the second platform being joined to the plurality of airfoils, the forming including forming at least one of the first platform, the second platform and the plurality of airfoils with a three-dimensional arrangement of continuous fibers and at least one different one of the first platform, the second platform and the plurality of airfoils with a two-dimensional arrangement of continuous fibers;wherein a Pi-section joins at least one of the first platform and the second platform with the plurality of airfoils, the Pi-section having a wall and a plurality of legs protruding from one side of the wall; andwherein the forming comprises interfacially joining the wall to at least one of the first platform and the second platform, and interfacially joining the plurality of legs with the plurality of airfoils.
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이 특허에 인용된 특허 (12)
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