[특허]Foil thrust bearing cooling

Honeywell International Inc.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Foil thrust bearing cooling

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16C-017/06
미국특허분류(USC)	384/105; 384/106
출원번호	US-0295352 (2002-11-15)
발명자 / 주소	Saville, Marshall Hurley, Keith A. Borghese, Joseph B.
출원인 / 주소	Honeywell International Inc.
대리인 / 주소	Caglar, Esq. Oval
인용정보	피인용 횟수 : 14 인용 특허 : 33

초록
▼

An improved foil thrust bearing includes a cooling fluid flow turbulence generating disk placed between other foil thrust bearing elements, such as thrust bearing elements and underspring elements. The inventive turbulence generating disk generally provides improved transfer of heat through the foil and into the cooling fluid of foil thrust bearings that may be used for high rotor speed applications. It accomplishes this by improving the transfer of heat through the foil and into the cooling fluid by generating turbulent cooling flow adjacent to the back of the top foil. The turbulent flow is generated primarily by a series of turns or protrusions introduced into the cooling flow stream. Alternate embodiments are disclosed that provide the turbulence generating elements as part of the underside of thrust bearing elements.

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1. A foil thrust bearing, comprisinga thrust runner and a thrust plate arranged for relative rotation with respect to one another, said thrust plate adapted to rotatably support said thrust runner;a thrust bearing disk operably disposed adjacent said thrust runner;an underspring element operably disposed adjacent said thrust plate;a turbulence generating disk operably disposed between said thrust bearing disk and said underspring element;a plurality of turbulator elements integral to said turbulence generating disk and directed radially toward the center of said turbulence generating disk;wherein said turbulator elements of said turbulence generating disk generate turbulent fluid flow. 2. The foil thrust bearing disk of claim 1, wherein said turbulence generating disk is annularly shaped. 3. The foil thrust bearing disk of claim 1, wherein said turbulator elements of said turbulence generating disk are of equal length and non-linearly shaped in a wave pattern. 4. The foil thrust bearing disk of claim 1, wherein said turbulator elements of said turbulence generating disk are of non-equal length. 5. The foil thrust bearing disk of claim 1, wherein said turbulator elements of said turbulence generating disk are in sets of no less than two. 6. The foil thrust bearing disk of claim 1, wherein said turbulence generating disk comprises a plurality of windows placed along the outer circumferential edge of said turbulence generating disk. 7. The foil thrust bearing disk of claim 1, wherein said turbulence generating disk is made of metal. 8. The foil thrust bearing disk of claim 1, wherein said turbulence generating disk is made of a non-metal material. 9. The foil thrust bearing disk of claim 1, wherein said turbulence generating disk is fabricated by stamping. 10. The foil thrust bearing disk of claim 1, wherein said turbulence generating disk is fabricated by etching. 11. The foil thrust bearing disk of claim 1, wherein said cooling fluid flow is directed from an inside diameter to an outside diameter of said foil thrust bearing. 12. The foil thrust bearing disk of claim 1, wherein said cooling fluid flow is directed from an intermediate diameter to an outside and an inside diameter of said foil thrust bearing. 13. The foil thrust bearing disk of claim 1, wherein said cooling fluid flow is directed from an outside diameter to an inside diameter of said foil thrust bearing. 14. The foil thrust bearing disk of claim 1, wherein said plurality of turbulator elements are integral to said thrust bearing disk. 15. The foil thrust bearing disk of claim 14, wherein said plurality of turbulator elements is photochemically etched directly on said thrust bearing disk. 16. The foil thrust bearing disk of claim 1, wherein said thrust bearing disk further comprises a plurality of rectangular elements forming a dam causing turbulence of said cooling fluid flow. 17. The foil thrust bearing disk of claim 1, wherein said thrust bearing disk further comprises a plurality of pins forming a pin pattern causing turbulent cooling fluid flow. 18. The foil thrust bearing disk of claim 1, wherein said thrust bearing disk further comprises a plurality of radial blocks forming a radial block pattern causing turbulent cooling fluid flow. 19. The foil thrust bearing disk of claim 1, wherein said plurality of turbulator elements are supported by a turbulator support plate. 20. A foil thrust bearing, comprisinga thrust runner and a thrust plate;a thrust bearing disk adjacent said thrust runner;an underspring element adjacent said thrust plate;a turbulence generating disk between said thrust bearing disk and said underspring element, said turbulence generating disk comprising a plurality of turbulator elements directed radially toward the center;wherein said turbulator elements of said turbulence generating disk generate turbulent fluid flow directed in a radial direction. 21. The foil thrust bearing disk of claim 20, wherein all said turbulator elements of said tu rbulence generating disk are in a wave pattern and in sets of no less than two. 22. The foil thrust bearing disk of claim 20, wherein said turbulence generating disk is made of a high thermal conductivity material. 23. The foil thrust bearing disk of claim 20, wherein said plurality of turbulator elements are part of said thrust bearing disk. 24. The foil thrust bearing disk of claim 20, wherein said thrust bearing disk further comprises rectangular elements forming a dam causing turbulence of said cooling fluid flow. 25. The foil thrust bearing disk of claim 20, wherein said thrust bearing disk further comprises a pin pattern causing turbulent cooling fluid flow. 26. The foil thrust bearing disk of claim 20, wherein said thrust bearing disk further comprises radial blocks forming a radial block pattern causing turbulent cooling fluid flow. 27. The foil thrust bearing disk of claim 20, wherein said plurality of turbulator elements are supported by a turbulator support plate. 28. A system for cooling foil thrust bearings for high speed rotating machinery, comprisinga foil thrust bearing comprising a thrust runner and a thrust plate arranged for relative rotation with respect to one another;a thrust bearing disk disposed adjacent said thrust runner;an underspring element disposed adjacent said thrust plate;a turbulence generating disk, disposed between said thrust bearing disk and said underspring element, and comprising a plurality of turbulator elements positioned on an inner annular ring edge and directed radially toward a center of said turbulence generating disk;wherein said turbulator elements generate turbulent fluid flow directed to said foil thrust bearing. 29. The system for cooling foil thrust bearings for high speed rotating machinery of claim 28, wherein said turbulator elements of said turbulence generating disk are wave patterned. 30. The system for cooling foil thrust bearings for high speed rotating machinery of claim 28, wherein said turbulence generating disk is made of a metal. 31. The system for cooling foil thrust bearings for high speed rotating machinery of claim 28, wherein said turbulator elements are part of said thrust bearing disk. 32. The system for cooling foil thrust bearings for high speed rotating machinery of claim 28, wherein rectangular elements forming a dam are provided on said thrust bearing disk causing turbulence on said cooling fluid flow. 33. The system for cooling foil thrust bearings for high speed rotating machinery of claim 28, wherein pins forming a pin pattern causing turbulent cooling fluid flow are provided on said thrust bearing disk. 34. The system for cooling foil thrust bearings for high speed rotating machinery of claim 28, wherein radial blocks forming a radial block pattern causing turbulent cooling fluid flow are provided on said thrust bearing disk. 35. The system for cooling foil thrust bearings for high speed rotating machinery of claim 28, wherein said plurality of turbulator elements are supported by a turbulator support plate. 36. A method for cooling foil thrust bearings for high speed rotating machinery, comprising the steps ofrotating a thrust runner in relation to a thrust plate;rotating a thrust bearing disk and an underspring element between said rotating thrust runner and thrust plate;rotating between said thrust bearing disk and said underspring element, a turbulence generating disk comprised of turbulator elements positioned on an inner annular ring edge and directed radially toward a center of said turbulence generating disk;generating cooling fluid pressure by bleeding pressurized fluid from said high speed rotating machinery;generating turbulent cooling fluid flow by directing said cooling fluid flow through said turbulator elements of said turbulence generating disk. 37. The method of claim 36, further comprising the step of generating turbulent cooling fluid flow by directing said cooling fluid flow through turbulator elements shaped in a wave patter n. 38. The method of claim 36, further comprising the step of generating turbulent cooling fluid flow by directing said cooling fluid flow through a plurality of rectangular elements forming a turbulence dam. 39. The method of claim 36, further comprising the step of generating turbulent cooling fluid flow by directing said cooling fluid flow through a plurality of pins forming a pin pattern. 40. The method of claim 36, further comprising the step of generating turbulent cooling fluid flow by directing said cooling fluid flow through a plurality of radial blocks forming a radial block pattern. 41. A method for cooling foil thrust bearings for rotating machinery, comprising the steps ofrotating a thrust runner in relation to a thrust plate;rotating a thrust bearing disk, a turbulence generating disk, and an underspring element between said rotating thrust runner and thrust plate;generating cooling fluid pressure by bleeding pressurized fluid from said rotating machinery;generating turbulent cooling fluid flow by directing said cooling fluid flow through said turbulence generating disk. 42. The method of claim 41, further comprising the step of generating turbulent cooling fluid flow by directing it through wave shaped turbulator elements. 43. The method of claim 41, further comprising the step of generating turbulent cooling fluid flow by directing it through a dam comprised of rectangular elements. 44. The method of claim 41, further comprising the step of generating turbulent cooling fluid flow by directing it through a pattern comprised of pins. 45. The method of claim 41, further comprising the step of generating turbulent cooling fluid flow by directing it through a pattern comprised of radial blocks.

이 특허에 인용된 특허 (33)

이 특허를 인용한 특허 피인용횟수: 14

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Foil thrust bearing cooling

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Foil thrust bearing cooling

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