Journal bearing sleeve
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0855890
(2013-04-03)
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등록번호 |
US-8783952
(2014-07-22)
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발명자
/ 주소 |
- Beers, Craig M.
- Colson, Darryl A.
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출원인 / 주소 |
- Hamilton Sundstrand Corporation
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대리인 / 주소 |
Carlson, Gaskey & Olds, P.C.
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인용정보 |
피인용 횟수 :
2 인용 특허 :
8 |
초록
▼
A journal bearing including a cylindrical sleeve structure has an anti-rotation slot for receiving a portion of a foil layer. The anti-rotation slot extends radially into the cylindrical sleeve structure, relative to an axis defined by the cylindrical sleeve structure, from said inner diameter surfa
A journal bearing including a cylindrical sleeve structure has an anti-rotation slot for receiving a portion of a foil layer. The anti-rotation slot extends radially into the cylindrical sleeve structure, relative to an axis defined by the cylindrical sleeve structure, from said inner diameter surface.
대표청구항
▼
1. A journal bearing sleeve comprising: a cylindrical sleeve structure having an inner diameter surface and an outer diameter surface, wherein said cylindrical sleeve structure defines an axis;an anti-rotation slot extending radially into said cylindrical sleeve structure, relative to said axis, fro
1. A journal bearing sleeve comprising: a cylindrical sleeve structure having an inner diameter surface and an outer diameter surface, wherein said cylindrical sleeve structure defines an axis;an anti-rotation slot extending radially into said cylindrical sleeve structure, relative to said axis, from said inner diameter surface;said cylindrical sleeve structure has a first axial end and a second axial end, and said outer diameter surface is chamfered at said second axial end; andwherein a ratio of an inner diameter of said cylindrical sleeve structure to an axial slot length of said anti-rotation slot is in the range of 2.0245:1.630-2.0235:1.640. 2. The journal bearing sleeve of claim 1, wherein said anti-rotation slot has two facing axially aligned walls and a width defined as the shortest distance between said facing axially aligned walls, said width being in the range of 0.036-0.046 inches (0.0914-0.1169 centimeters). 3. The journal bearing sleeve of claim 1, wherein said anti-rotation slot has an axial length in the range of 1.630-1.640 inches (4.1402-4.1656 centimeters). 4. The journal bearing sleeve of claim 1, wherein said cylindrical sleeve structure has an axial sleeve length in the range of 2.150-2.160 inches (5.461-5.487 centimeters). 5. The journal bearing sleeve of claim 1, wherein said cylindrical sleeve structure has an outer diameter in the range of 2.2495-2.2505 inches (5.7137-5.71627 centimeters). 6. The journal bearing sleeve of claim 1, wherein said cylindrical sleeve structure has an inner diameter radius in the range of 2.0235-2.0245 inches (5.1396-5.1423 centimeters). 7. The journal bearing sleeve of claim 1, wherein a ratio of an outer diameter of the cylindrical sleeve structure to an inner diameter of the cylindrical sleeve structure is in the range of 2.2495:2.0245-2.2505:2.0235. 8. The journal bearing sleeve of claim 1, wherein a ratio of an outer diameter of said cylindrical sleeve structure to an axial slot length of said anti-rotation slot is in the range of 2.2505:1.630-2.2495:1.640. 9. The journal bearing sleeve of claim 1, wherein a ratio of an axial slot length of said anti-rotation slot to a radial anti-rotation slot depth of said anti-rotation slot is in the range of 1.630:1.105-1.640:1.095. 10. The journal bearing sleeve of claim 1, wherein an anti-rotation slot width to a radial anti-rotation slot depth ratio in the range of 0.046:1.095-0.036:1.105. 11. The journal bearing sleeve of claim 1, wherein said anti-rotation slot is not axially centered on said cylindrical sleeve structure. 12. A journal bearing assembly comprising: a cylindrical bearing sleeve having a cylindrical sleeve structure with an inner diameter surface and an outer diameter surface, wherein said cylindrical sleeve structure defines an axis, an anti-rotation slot extending radially into said cylindrical sleeve structure, relative to said axis, from said inner diameter surface, and said cylindrical sleeve structure has a first axial end and a second axial end, and said outer diameter surface is chamfered at said second axial end;a foil layer adjacent said inner diameter surface, wherein said foil layer has at least a first waved foil sub-layer and a second smooth foil sub-layer, and wherein a portion of said foil layer is received in said anti-rotation slot, thereby preventing said foil layer from rotating; andwherein a ratio of an outer diameter of said cylindrical sleeve structure to an axial slot length of said anti-rotation slot is in the range of 2.2505:1.630-2.2495:1.640. 13. The journal bearing sleeve of claim 12, wherein a ratio of an outer diameter of the cylindrical sleeve structure to an inner diameter of the cylindrical sleeve structure is in the range of 2.2495:2.0245-2.2505:2.0235. 14. The journal bearing sleeve of claim 12, wherein a ratio of an inner diameter of said cylindrical sleeve structure to an axial slot length of said anti-rotation slot is in the range of 2.0245:1.630-2.0235:1.640. 15. The journal bearing sleeve of claim 12, wherein a ratio of an axial slot length of said anti-rotation slot to a radial anti-rotation slot depth of said anti-rotation slot is in the range of 1.630:1.105-1.640:1.095. 16. The journal bearing sleeve of claim 12, wherein an anti-rotation slot width to a radial anti-rotation slot depth ratio in the range of 0.046:1.095-0.036:1.105. 17. A method of installing a journal bearing, comprising the steps of: positioning a foil layer adjacent an inner surface of a journal bearing sleeve such that a portion of said foil layer is received in an anti-rotation slot of said journal bearing sleeve; andreceiving a shaft in an opening of said journal bearing defined by an inner diameter of said journal bearing sleeve, wherein said shaft is sized to fit said opening, and wherein a ratio of an axial slot length of said anti-rotation slot to a radial anti-rotation slot depth of said anti-rotation slot is in the range of 1.630:1.105-1.640:1.095. 18. The method of claim 17, wherein said step of positioning a foil layer adjacent an inner surface of a journal bearing sleeve such that a portion of said foil layer is received in an anti-rotation slot of said journal bearing sleeve comprises positioning a first waved foil sub-layer immediately adjacent said inner diameter surface and a second smooth foil sub-layer adjacent said first waved foil sub-layer.
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