Device and method for producing a blade for a turbine and blade produced according to this method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01D-005/18
출원번호
US-0239792
(2001-09-13)
우선권정보
EP-0120035 (2000-09-14)
국제출원번호
PCT/EP01/10600
(2001-09-13)
국제공개번호
WO02/22291
(2002-03-21)
발명자
/ 주소
Tiemann, Peter
출원인 / 주소
Siemens Aktiengesellschaft
대리인 / 주소
Harness, Dickey & Pierce, P.L.C.
인용정보
피인용 횟수 :
16인용 특허 :
1
초록▼
A device and a method are for producing a blade including two outer walls and at least one cavity between the outer walls, for a turbine. An outer mould and several cores are used in forming the outer walls and the at least one cavity of the blade. At least one of the cavities is divided into two ch
A device and a method are for producing a blade including two outer walls and at least one cavity between the outer walls, for a turbine. An outer mould and several cores are used in forming the outer walls and the at least one cavity of the blade. At least one of the cavities is divided into two channels by a middle segment. One channel is located between the first outer wall and the middle segment, while the other channel is located between the middle segment and the second outer wall. Two cores which are separate from each other are used accordingly. This provides a simple and economical means of reducing the thickness of the outer wall.
대표청구항▼
1. A device for producing a turbine blade having two outer walls and at least one cavity, arranged between the outer walls, comprising:an outer mold and a plurality of cores for forming the outer walls and the at least one cavity, wherein each of the cores includes at least one section which extends
1. A device for producing a turbine blade having two outer walls and at least one cavity, arranged between the outer walls, comprising:an outer mold and a plurality of cores for forming the outer walls and the at least one cavity, wherein each of the cores includes at least one section which extends from an associated outer wall up to a center web of the blade, without being involved in the formation of the other outer wall. 2. The device as claimed in claim 1, wherein the cores are fixed at at least one end in a receptacle of the outer mold in the longitudinal direction of the blade. 3. The device as claimed in claim 1, wherein the cores include projections for supporting on the outer mold. 4. The device as claimed in claim 3, wherein the projections taper starting from the cores in particular are of conical design. 5. The device as claimed in claim 4, wherein the projections are of conical design. 6. The device as claimed in claim 4, wherein the cores are supported on one another by at least one of rigid and elastic spacers. 7. The device as claimed in claim 6, wherein the spacers are wedge-shaped. 8. The device as claimed in claim 3, wherein the cores are supported on one another by at least one of rigid and elastic spacers. 9. The device as claimed in claim 8, wherein the spacers are wedge-shaped. 10. A method or producing a turbine blade having two outer walls and at least one cavity, arranged between the outer walls, comprising:an outer mold and a plurality of cores, provided for forming the outer walls and the at least one cavity, wherein at least one section of each core is supported in such a way that a distance between the outside of the section of the one core and the inside of the outer mold is independent of a distance between the outside of the section of the other core and the inside of the outer mold, so that the wall thicknesses of the two outer walls, at least in the region of the sections, are formed independently of one another. 11. The method as claimed in claim 10, wherein the two cores are supported on the inside of the outer mold via projections, in order to ensure a minimum wall thickness of the outer walls. 12. The method as claimed in claim 11, wherein the two cores are supported on one another and are pressed against the inside of the outer mold. 13. The method as claimed in claim 12, wherein the two cores are supported on one another by at least one of rigid and elastic spacers. 14. The method as claimed in claim 10, wherein the two cores are supported on one another and are pressed against the inside of the outer mold. 15. The method as claimed in claim 14, wherein the two cores are supported on one another by at least one of rigid and elastic spacers. 16. A blade for a turbine, comprising:two outer walls and at least one cavity arranged between the outer walls, wherein at least one cavity is divided into two passages by a center web, the at least one passage being arranged between the at least one outer wall and the center web and the other passage being arranged between the center web and the other outer wall, wherein the wall thickness of the center web is greater than the wall thickness of the outer walls. 17. The blade as claimed in claim 16, wherein the outer walls are connected to one another via a plurality of ribs for forming a plurality of cavities. 18. The blade as claimed in claim 17, wherein a cavity at at least one of a leading edge and a trailing edge of the blade is free of the center web.
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이 특허에 인용된 특허 (1)
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Ceglio, Christopher Michael; Bauer, Randall Charles; Molter, Stephen Mark; Stegemiller, Mark Edward, Turbine airfoil with local wall thickness control.
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