IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0917717
(2010-11-02)
|
등록번호 |
US-8864449
(2014-10-21)
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발명자
/ 주소 |
- Telakowski, Robert
- Beck, John M.
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출원인 / 주소 |
- Hamilton Sundstrand Corporation
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대리인 / 주소 |
Carlson, Gaskey & Olds, PC
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인용정보 |
피인용 횟수 :
0 인용 특허 :
14 |
초록
▼
A drive ring bearing has a body with a generally cylindrical outer peripheral surface, and a generally u-shaped cross-section, with over a circumferential portion of the body. A web defines the outer peripheral surface. Radially inwardly extending legs define the u-shape in combination with the web.
A drive ring bearing has a body with a generally cylindrical outer peripheral surface, and a generally u-shaped cross-section, with over a circumferential portion of the body. A web defines the outer peripheral surface. Radially inwardly extending legs define the u-shape in combination with the web. A plurality of circumferentially spaced feet extend from the outer peripheral surface of the body to an inner peripheral surface of the body. In addition, a diffuser assembly incorporating the drive ring bearing, a compressor assembly including the diffuser assembly, and a method of mounting the drive ring bearing are also disclosed.
대표청구항
▼
1. A drive ring bearing comprising: a bearing body having a generally cylindrical outer peripheral surface, and a generally u-shaped cross-section over a circumferential portion of the body, with a web defining said outer peripheral surface, and radially inwardly extending legs defining said u-shape
1. A drive ring bearing comprising: a bearing body having a generally cylindrical outer peripheral surface, and a generally u-shaped cross-section over a circumferential portion of the body, with a web defining said outer peripheral surface, and radially inwardly extending legs defining said u-shape in combination with said web; anda plurality of circumferentially spaced feet extending from said outer peripheral surface of said body to an inner peripheral surface of said body. 2. The bearing as set forth in claim 1, wherein a ratio of a circumferential distance of said feet at the inner peripheral surface to a radial thickness of said body being between 1.50 and 2.70. 3. The bearing as set forth in claim 1, wherein at least one of said feet has a notch for receiving a pin to lock said bearing to a structure in a compressor. 4. The bearing as set forth in claim 1, wherein one of said feet is defined by spaced ends, having an intermediate gap, with a gap angle defined along said gap, said angle being between 30° and 60°. 5. The bearing as set forth in claim 1, wherein a ratio of a radius to an inner peripheral surface of said body to a radius to the outer peripheral surface of the body is between 0.900 and 0.950. 6. The bearing as set forth in claim 1, wherein a ratio of the thickness of said web to a thickness between said inner peripheral surface and said outer peripheral surface is between 0.400 and 0.450. 7. The bearing as set forth in claim 1, wherein a ratio of an axial length of said body to a thickness of said body between said inner and outer peripheral surface is between 2.250 and 2.750. 8. A diffuser assembly including: a shroud defining a diffuser section receiving a movable vane;a drive ring for adjusting said movable vane, said drive ring being positioned outwardly of a cylindrical outer surface on said shroud, and a drive ring bearing positioned between said drive ring and the outer surface of said shroud, the drive ring bearing having a bearing body with a generally cylindrical outer peripheral surface, and a generally u-shaped cross-section over a circumferential extent of said body, with a web defining said outer peripheral surface, and radially inwardly extending legs defining said u-shape in combination with said web; andsaid body also having a plurality of circumferentially spaced feet extending from said outer peripheral surface of said body to an inner peripheral surface of said body. 9. The assembly as set forth in claim 8, wherein a ratio of a circumferential distance of said feet at the inner peripheral surface to a radial thickness of said body being between 1.50 and 2.70. 10. The assembly as set forth in claim 8, wherein at least one of said feet has a notch for a pin to lock said bearing to said shroud. 11. The assembly as set forth in claim 8, wherein one of said feet is defined by spaced ends, having an intermediate gap, with a gap angle defined along said gap, said angle being between 30° and 60°. 12. The assembly as set forth in claim 8, wherein a ratio of a radius to an inner peripheral surface of said body to a radius to the outer peripheral surface of the body is between 0.900 and 0.950. 13. A compressor assembly comprising: a compressor rotor positioned within a shroud receiving a movable vane and defining a diffuser for the rotor;a drive ring for adjusting said movable vane, said drive ring being positioned outwardly of a cylindrical outer surface on said shroud, and a drive ring bearing positioned between said drive ring and the outer surface of said shroud, the drive ring bearing having a bearing body with a generally cylindrical outer peripheral surface, and a generally u-shaped cross-section over a circumferential extent of the body, with a web defining said outer peripheral surface, and radially inwardly extending legs defining said u-shape in combination with said web; andsaid body also having a plurality of circumferentially spaced feet extending from outer peripheral surface of said body to an inner peripheral surface of said body. 14. The assembly as set forth in claim 13, wherein a ratio of a circumferential distance of said feet at the inner peripheral surface to a radial thickness of said body being between 1.50 and 2.70. 15. The assembly as set forth in claim 13, wherein at least one of said feet has a notch for receiving a pin to lock said bearing to said shroud. 16. The assembly as set forth in claim 13, wherein one of said feet is defined by spaced ends, having an intermediate gap, with a gap angle defined along said gap, said angle being between 30° and 60°. 17. The assembly as set forth in claim 13, wherein a ratio of a radius to an inner peripheral surface of said body to a radius to the outer peripheral surface of the body is between 0.900 and 0.950. 18. A method of installing a drive ring bearing into a diffuser assembly comprising the steps of: (a) providing a drive ring bearing having a generally cylindrical outer peripheral surface, and a generally u-shaped cross-section over a circumferential portion of said bearing, with a web defining said outer peripheral surface, and radially inwardly extending legs defining said u-shape in combination with said web, a plurality of circumferentially spaced feet extending from said outer peripheral surface of said body to an inner peripheral surface of said body;(b) mounting the bearing onto a drive ring for driving at least one vane in a diffuser assembly; and(c) inserting a pin through a notch in said drive ring bearing, said pin locking said drive ring bearing to a shroud, said shroud defining a portion of the diffuser assembly. 19. The method as set forth in claim 18, wherein a ratio of a circumferential distance of said feet at the inner peripheral surface to a radial thickness of said body being between 1.50 and 2.70. 20. The method as set forth in claim 18, wherein one of said feet is defined by spaced ends having intermediate gap, with a gap angle defined along said gap, said angle being between 30 degrees and 60 degrees.
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