[특허]Rotor device for a jet engine with a disk wheel and several rotor blades

Rolls-Royce Deutschland Ltd & Co KG

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특허 상세정보

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Rotor device for a jet engine with a disk wheel and several rotor blades

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-005/30 F01D-005/32
출원번호	US-0493230 (2012-06-11)
등록번호	US-9080455 (2015-07-14)
우선권정보	DE-10 2011 077 501 (2011-06-14)
발명자 / 주소	Gerstberger, Ulf
출원인 / 주소	Rolls-Royce Deutschland Ltd & Co KG
대리인 / 주소	Klima, Timothy J.
인용정보	피인용 횟수 : 0 인용 특허 : 5

초록
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The present invention proposes a rotor device for a jet engine with a disk wheel and several rotor blades connected to said disk wheel, with the rotor blades being arranged in each case via a blade root substantially in the axial direction inside recesses of the disk wheel. Several locking segments are provided in the recesses of the disk wheel for axially locking the rotor blades, said locking segments interacting on the one hand with grooves of the rotor blades and on the other hand with at least one groove of the disk wheel. In the area of the groove ...

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청구항
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1. A rotor device for a jet engine, comprising: a disk wheel having a plurality of substantially axially oriented recesses and a locking ring groove;a plurality of rotor blades connected to the disk wheel, each rotor blade including a blade root positioned in one of the recesses, at least one of the rotor blades including rotor blade locking ring groove;at least one looking segment positioned between the disk wheel locking ring groove and the rotor blade locking ring groove for axially locking the at least one of the rotor blades, the at least one locking segment engaging the rotor blade locking ring groove in a defined contact area of the rotor blade locking ring groove to prevent relative movement between the at least one of the rotor blades and the at least one locking segment;wherein the rotor blade locking ring groove includes a tooth-shaped profiled body facing the at least one locking segment;wherein the profiled body includes a triangular area as viewed in an axial direction and the at least on locking segment includes a counterpart area as viewed in the axial direction, the profiled body triangular area forming a stop for the at least one locking segment counterpart area to prevent a relative circumferential movement between the at least one of the rotor blades and the at least one locking segment. 2. The rotor device of claim 1, wherein the profiled body triangular area includes a first rotor blade edge inclined in a circumferential direction of the at least one of the rotor blades relative to a platform of the at least one of the rotor blades intersecting at a first intersection point a second rotor blade edge inclined outward in a direction toward a bottom of the rotor blade locking ring groove, the first intersection point being a portion of the profiled body triangular area extending furthest in a radial direction from the bottom, and wherein the at least one locking segment counterpart area includes a first locking segment edge and a second locking segment edge intersecting at a second intersection point to form a counterpart area triangular area, the profiled body triangular area engaging the counterpart area triangular area to form a stop for the counterpart area triangular area and prevent rotation of the at least one locking segment relative to the at least one of the rotor blades. 3. The rotor device of claim 2, wherein the first locking segment edge includes a portion running parallel to the first rotor blade edge to form a contact area between the at least one of the rotor blades and the at least one locking segment. 4. The rotor device of claim 3, wherein a center of the contact area is arranged approximately centrally to the blade root of the at least one of the rotor blades in the circumferential direction. 5. The rotor device of claim 2, wherein the at least one locking segment counterpart area includes a third locking segment edge intersecting the first locking segment edge on a side away from the second intersection point, the third locking segment edge extending at a spaced apart distance from the first rotor blade edge. 6. The rotor device of claim 5, wherein the third locking segment edge extends in the circumferential direction beyond a transitional area of an adjacent one of the plurality of rotor blades. 7. The rotor device of claim 6, wherein the at least one locking segment includes at least one extension in an area facing the disk wheel locking groove moveable between a first position for insertion of the at least one locking segment into the rotor device and a second position with the at least one locking segment inserted into the rotor device, wherein a radial extent of the at least one locking segment is greater when the at least one extension is in the second position than when the at least one extension is in the first position. 8. The rotor device of claim 5, wherein the at least one locking segment includes at least one extension in an area facing the disk wheel locking groove moveable between a first position for insertion of the at least one locking segment into the rotor device and a second position with the at least one locking segment inserted into the rotor device, wherein a radial extent of the at least one locking segment is greater when the at least one extension is in the second position than when the at least one extension is in the first position. 9. The rotor device of claim 2, wherein the second locking segment edge extends at a spaced apart distance from the second rotor blade edge. 10. The rotor device of claim 2, wherein at least one of the edges extends approximately in a straight line. 11. The rotor device of claim 2, wherein all of the edges extend approximately in straight lines. 12. The rotor device of claim 2, wherein the at least one locking segment includes at least one extension in an area facing the disk wheel locking groove moveable between a first position for insertion of the at least one locking segment into the rotor device and a second position with the at least one locking segment inserted into the rotor device, wherein a radial extent of the at least one locking segment is greater when the at least one extension is in the second position than when the at least one extension is in the first position. 13. The rotor device of claim 1, wherein each of the plurality of rotor blades includes a rotor blade locking ring groove including a profiled body and the at least one locking segment includes at least two locking segment counterpart areas for respectively engaging profiled bodies of two of the plurality of rotor blades. 14. The rotor device of claim 13, wherein the at least one locking segment includes at least one extension in an area facing the disk wheel locking groove moveable between a first position for insertion of the at least one locking segment into the rotor device and a second position with the at least one locking segment inserted into the rotor device, wherein a radial extent of the at least one locking segment is greater when the at least one extension is in the second position than when the at least one extension is in the first position. 15. The rotor device of claim 1, wherein the at least one locking segment includes at least one extension in an area facing the disk wheel locking groove moveable between a first position for insertion of the at least one locking segment into the rotor device and a second position with the at least one locking segment inserted into the rotor device, wherein a radial extent of the at least one locking segment is greater when the at least one extension is in the second position than when the at least one extension is in the first position. 16. The rotor device of claim 1, and further comprising a spacer element running in a circumferential direction and positioned between the at least one locking segment and the disk wheel locking ring groove. 17. The rotor device of claim 16, wherein the spacer element includes a wire. 18. A rotor device for a jet engine, comprising: a disk wheel having a plurality of substantially axially oriented recesses and a locking ring groove;a plurality of rotor blades connected to the disk wheel, each rotor blade including a blade root positioned in one of the recesses, at least one of the rotor blades including a rotor blade locking ring groove;at least one locking segment positioned between the disk wheel locking ring groove and the rotor blade locking ring groove for axially locking the at least one of the rotor blades, the at least one locking segment engaging the rotor blade locking ring groove in a defined contact area of the rotor blade locking ring groove to prevent relative movement between the at least one of the rotor blades and the at least one locking segment;wherein the at least one locking segment includes at least one extension in an area facing the disk wheel locking groove moveable between a first position for insertion of the at least one locking segment into the rotor device and a second position with the at least one locking segment inserted into the rotor device, wherein a radial extent of the at least one locking segment is greater when the at least one extension is in the second position than when the at least one extension is in the first position.

이 특허에 인용된 특허 (5)

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Rotor device for a jet engine with a disk wheel and several rotor blades

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Rotor device for a jet engine with a disk wheel and several rotor blades

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이 특허에 인용된 특허 (5)

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