IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0873693
(2013-04-30)
|
등록번호 |
US-8794838
(2014-08-05)
|
발명자
/ 주소 |
- Rosen, Seth E.
- Struziak, Ronald M.
|
출원인 / 주소 |
- Hamilton Sundstrand Corporation
|
대리인 / 주소 |
Carlson, Gaskey & Olds P.C.
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
15 |
초록
▼
Disclosed is a bearing sleeve for supporting a shaft of an air cycle machine. The bearing sleeve includes an outer diameter and an inner diameter. The outer diameter is within a range of 3.214 and 3.216 inches. Further included is a foil retaining cavity provided in the inner diameter of the sleeve.
Disclosed is a bearing sleeve for supporting a shaft of an air cycle machine. The bearing sleeve includes an outer diameter and an inner diameter. The outer diameter is within a range of 3.214 and 3.216 inches. Further included is a foil retaining cavity provided in the inner diameter of the sleeve. The foil retaining cavity includes a slot and first and second openings located at opposing axial ends of the slot. Each of the first and second openings include a small portion and a large portion having different axial lengths. A ratio of the combined axial lengths of the large portions to an axial length of the foil retaining cavity is within a range of 0.19:1 and 0.22:1.
대표청구항
▼
1. A bearing sleeve for supporting a shaft of an air cycle machine, comprising: an outer diameter and an inner diameter, wherein the outer diameter is within a range of 3.214 and 3.216 inches; anda foil retaining cavity provided in the inner diameter, the foil retaining cavity including a slot and f
1. A bearing sleeve for supporting a shaft of an air cycle machine, comprising: an outer diameter and an inner diameter, wherein the outer diameter is within a range of 3.214 and 3.216 inches; anda foil retaining cavity provided in the inner diameter, the foil retaining cavity including a slot and first and second openings located at opposing axial ends of the slot, each of the first and second openings including a small portion and a large portion having different axial lengths, wherein a ratio of the combined axial lengths of the large portions to an overall axial length of the foil retaining cavity is within a range of 0.19:1 and 0.22:1. 2. The bearing sleeve as recited in claim 1, wherein a ratio of the outer diameter to the inner diameter is within a range of 1.140:1 and 1.142:1. 3. The bearing sleeve as recited in claim 1, wherein the large portions of the first and second openings each have axial lengths within a range of 0.265 and 0.305 inches. 4. The bearing sleeve as recited in claim 1, wherein the small portions of the first and second openings each have axial lengths within a range of 0.12 and 0.16 inches. 5. The bearing sleeve as recited in claim 1, wherein the large portions of the first and second openings each have widths within a range of 0.215 and 0.225 inches, measured relative to a centerline of the slot. 6. The bearing sleeve as recited in claim 1, wherein the small portions of the first and second openings each have widths within a range of 0.065 and 0.075 inches, measured relative to a centerline of the slot. 7. The bearing sleeve as recited in claim 1, wherein the foil retaining cavity has a length within a range of 2.795 and 2.805 inches. 8. The bearing sleeve as recited in claim 1, wherein the bearing sleeve has an overall axial length within a range of 3.33 and 3.35 inches. 9. The bearing sleeve as recited in claim 1, wherein the slot has a width within a range of 0.041 and 0.047 inches. 10. An air cycle machine, comprising: a bearing sleeve, the bearing sleeve including an outer diameter and an inner diameter, wherein the outer diameter is within a range of 3.214 and 3.216 inches, the bearing sleeve further including a foil retaining cavity provided in the inner diameter, the foil retaining cavity including a slot and first and second openings located at opposing axial ends of the slot, each of the first and second openings including a small portion and a large portion having different axial lengths, wherein a ratio of the combined axial lengths of the large portions to an overall axial length of the foil retaining cavity is within a range of 0.19:1 and 0.22:1. 11. The air cycle machine as recited in claim 10, including a foil assembly, the foil assembly including a bent portion and tabs at axial ends thereof. 12. The air cycle machine as recited in claim 11, wherein the bent portion is received within the slot, and wherein the tabs are received within the large portions of the first and second openings. 13. The air cycle machine as recited in claim 10, including at least one O-ring supporting the bearing sleeve within a central opening in the air cycle machine, the O-ring directly engaged with the outer diameter of the bearing sleeve. 14. The air cycle machine as recited in claim 10, wherein a ratio of the outer diameter to the inner diameter is within a range of 1.140:1 and 1.142:1. 15. The air cycle machine as recited in claim 10, wherein the large portions of the first and second openings each have axial lengths within a range of 0.265 and 0.305 inches. 16. The air cycle machine as recited in claim 10, wherein the small portions of the first and second openings each have axial lengths within a range of 0.12 and 0.16 inches. 17. The air cycle machine as recited in claim 10, wherein the large portions of the first and second openings each have widths within a range of 0.215 and 0.225 inches, measured relative to a centerline of the slot. 18. The air cycle machine as recited in claim 10, wherein the small portions of the first and second openings each have widths within a range of 0.065 and 0.075 inches, measured relative to a centerline of the slot. 19. The air cycle machine as recited in claim 10, wherein the foil retaining cavity has a length within a range of 2.795 and 2.805 inches. 20. The air cycle machine as recited in claim 10, wherein the bearing sleeve has an overall axial length within a range of 3.33 and 3.35 inches.
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