US4084919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means of attaching a seal to a disk
Assignee: RTX Corp
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Filing: 1976-06-29
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Granted: 1978-04-18
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Expires: 1996-06-29
Abstract
Abstract An arrangement is set forth for mounting knife edge seals on a rotating bladed disk for sealing cooperation with sealing lands on a ring, fixed against rotation, connected to the inner ends of adjacent vanes. The knife edge seals are fixed to a sealing member which is removably positioned on a cylindrical-like flange on the disk. Radially mounted headed pins, held in position by centrifugal force during engine operation, fix the sealing member to the disk flange, while a pin retaining ring holds the pins in place when the disk is at rest.
Inventors
- 👤 Edwin Morris, Jr.
- 👤 David F. Toler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:33
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/001
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
250 words
In combination, a sealing device for use between a rotating disk having blades and the inner ends of vanes, comprising a disk mounted for rotation, said disk having blades mounted thereon, vanes mounted adjacent to said blades, a ring connected to the inner ends of said vanes, a first annular seal means fixed to the interior of said ring, an annular flange extending axially from said disk having a free end and an inner surface and outer surface, a second annular sealing member fixed to said flange, said second annular sealing member being U-shaped in cross-section with an inner and outer arm, said inner arm having an end, said outer arm having an end, the end of said inner arm contacts the inner surface of the flange and the end of the said outer arm contacts the outer surface of the flange, said flange and U-shaped sealing member having a plurality of aligned openings around the circumference thereof, a plurality of pins having enlarged heads, each pin having an enlarged head is located extending through each of the aligned openings with its head located inside of said flange for retaining said second annular sealing member to said flange, an inwardly radially extending flange fixed to the end of said inner arm, a pin retaining ring fixed to said inwardly radially extending flange for keeping said pins in place, said outer arm of said second annular sealing member having a knife edge seal for cooperating with said first annular seal means.
Claim 2
Dependent Claim
250 words
In combination, a sealing device for use between a rotating disk having blades and the inner ends of vanes, comprising a disk mounted for rotation, said disk having blades mounted thereon, vanes mounted adjacent to said blades, a ring connected to the inner ends of said vanes, a first annular seal means fixed to the interior of said ring, an annular flange extending axially from said disk having a free end and an inner surface and outer surface, a second annular sealing member fixed to said flange, said second annular sealing member being U-shaped in cross-section with an inner and outer arm, said inner arm having an end, said outer arm having an end, the end of said inner arm contacts the inner surface of the flange and the end of the said outer arm contacts the outer surface of the flange, said flange and U-shaped sealing member having a plurality of aligned openings around the circumference thereof, a plurality of pins having enlarged heads, each pin having an enlarged head is located extending through each of the aligned openings with its head located inside of said flange for retaining said second annular sealing member to said flange, an inwardly radially extending flange fixed to the end of said inner arm, a pin retaining ring fixed to said inwardly radially extending flange for keeping said pins in place, said outer arm of said second annular sealing member having a knife edge seal for cooperating with said first annular seal means.
Claim 3
Dependent Claim
100 words
A combination as set forth in claim 1 wherein said annular flange has a first raised portion on its inner surface and a second raised portion on its outer surface which fit tightly between the inner and outer arms of said U-shaped sealing member with said pins having enlarged heads passing through said annular flange and at least one arm of said U-shaped sealing member, said sealing member responding freely radially during radial movement while maintaining at least one tight fit between the first raised portion and the inner arm or between the second raised portion and the outer arm.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |