IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0261471
(2002-09-30)
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발명자
/ 주소 |
- Pickens, John T.
- Alexander, Phillip
- Bifulco, Anthony R.
- Cummings, Kevin J.
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출원인 / 주소 |
- United Technologies Corporation
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
11 인용 특허 :
3 |
초록
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The present invention relates to a bumper system for use with a compressor variable vane system. The bumper system broadly comprises a synchronizing ring, a bumper, a shim for defining a gap between a bumper pad and the bumper, a pin for preventing rotation of the bumper relative to the synchronizin
The present invention relates to a bumper system for use with a compressor variable vane system. The bumper system broadly comprises a synchronizing ring, a bumper, a shim for defining a gap between a bumper pad and the bumper, a pin for preventing rotation of the bumper relative to the synchronizing ring, and a device for fully trapping the shim. In a first embodiment, the device for fully trapping the shim comprises a sleeve passing through the synchronizing ring. In a second embodiment, the device for fully trapping the shim comprises a pin which passes through the synchronizing body. In a third embodiment, the device for fully trapping the shim comprises a fastener with a shoulder.
대표청구항
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1. A bumper system for use with a compressor variable vane system, said bumper system comprising:a synchronizing ring; a bumper joined to said synchronizing ring; a shim for defining a gap between a bumper pad and said bumper; and means for fully trapping the shim. 2. A bumper system according to cl
1. A bumper system for use with a compressor variable vane system, said bumper system comprising:a synchronizing ring; a bumper joined to said synchronizing ring; a shim for defining a gap between a bumper pad and said bumper; and means for fully trapping the shim. 2. A bumper system according to claim 1, further comprising:means for preventing rotation of said bumper relative to said synchronizing ring. 3. A bumper system according to claim 1, wherein said bumper is a one-piece composite bumper.4. A bumper system for use with a compressor variable vane system, said bumper system comprising:a synchronizing ring; a bumper joined to said synchronizing ring; a shim for defining a gap between a bumper pad and said bumper; means for fully trapping the shim; said shim having a slot with a width; and said means for fully trapping the shim comprising a shim-lockable sleeve having a diameter greater than the width of said slot. 5. A bumper system according to claim 4, further comprising:said synchronizing ring having an aperture extending therethrough; and said sleeve having a cylindrical portion which passes through said aperture. 6. A bumper system according to claim 5, further comprising:said sleeve having a shoulder portion which abuts a surface of said synchronizing ring. 7. A bumper system according to claim 5, further comprising:said cylindrical portion of said sleeve being hollow; said bumper having a bore; a fastener passing through said bore in said bumper and said hollow cylindrical portion; and a collar for engaging and locking said fastener. 8. A bumper system for use with a compressor variable vane system, said bumper system comprising:a synchronizing ring; a bumper joined to said synchronizing ring; a shim for defining a gap between a bumper pad and said bumper; means for fully trapping the shim; means for preventing rotation of said bumper relative to said synchronizing ring; and said rotation preventing means comprising a first hole in said synchronizing ring, a second hole in said bumper, and a dowel pin fitting in said first and second holes. 9. A bumper system for use with a compressor variable vane system, said bumper system comprising:a synchronizing ring; a bumper joined to said synchronizing ring; a shim for defining a gap between a bumper pad and said bumper; means for fully trapping the shim; said synchronizing ring having a through bore, said shim having an engagement bore, said bumper having a receiving bore, and said means for fully trapping the shim comprising a pin which passes through said through bore and said engagement bore and is received in said receiving bore. 10. A bumper system according to claim 9, wherein said pin has a washer attached thereto an said washer abuts a surface of said synchronizing ring.11. A bumper system according to claim 9, wherein said pin also acts as said means for preventing rotation of said bumper relative to said synchronizing ring.12. A bumper system for use with a compressor variable vane system, said bumper system comprising:a synchronizing ring; a bumper joined to said synchronizing ring; a shim for defining a gap between a bumper pad and said bumper; means for fully trapping the shim; said shim having a slot with side walls and said means for fully trapping the shim comprising a fastener having a shoulder for engaging said slot side walls. 13. A bumper system according to claim 12, wherein said fastener has a diameter and said side walls are spaced apart by a dimension less than said diameter.14. A bumper system according to claim 12, wherein said slot is substantially U-shaped.15. A bumper system according to claim 12, wherein said fastener passes through a hole in said bumper and secures said bumper to said synchronizing ring.16. A bumper system for use with a compressor variable vane system, said bumper system comprising:a synchronizing ring; a bumper joined to said synchronizing ring; means for preventing rotation of said bumper relative to said synchronizing ring; and said rotation preventing means comprising a first hole in said synchronizing ring, a second hole in said bumper, and a dowel pin inserted into said first and second holes. 17. A bumper system according to claim 16, further comprising at least one shim for defining a gap between a bumper pad and said bumper.18. A bumper system according to claim 16, wherein said bumper is a one-piece composite bumper.19. A bumper system for use with a compressor variable vane system, said bumper system comprising:a one-piece composite bumper; at least one shim for defining a gap between a bumper pad and said bumper; and means for fully trapping the at least one shim. 20. A bumper system according to claim 19, further comprising:a synchronizing ring; said bumper being joined to said synchronizing ring; and means for preventing rotation of said bumper relative to said synchronizing ring. 21. A bumper system according to claim 19, wherein said trapping means comprises a pin which passes through a first bore in said at least one shim and is received in a second bore in said bumper.22. A bumper system for use with a compressor variable vane system, said bumper system comprising:a one-piece composite bumper; at least one shim for defining a gap between a bumper pad and said bumper; means for fully trapping the at least one shim; and said trapping means comprising a shim-lockable sleeve, a fastener passing through said bumper and said sleeve, and a collar for engaging and locking said fastener. 23. A bumper system for use with a compressor variable vane system, said bumper system comprising:a one-piece composite bumper; at least one shim for defining a gap between a bumper pad and said bumper; means for fully trapping the at least one shim; and each said shim having a slot with side walls and said trapping means comprising a fastener having a shoulder for engaging said side walls.
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