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New circumferential seal design concept using self-acting lift geometries
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ludwig, L. P. Hady, W. F. |
| Copyright Year | 1972 |
| Description | Seal operating temperatures, leakage (pressurizing gas flow), torque, and wear of a conventional circumferential shaft seal were measured and compared to those of a conventional seal modified to have self-acting lift geometries. Both seal types had a 2.625-in diameter bore and were operated at a sliding velocity of 150 ft/sec with differential pressures ranging from 0 to 100 psi. Results of this investigation show that the self-acting seal operated at lower bulk carbon temperatures with half the torque and approximately one-tenth the wear of the conventional seal. Seal leakage of the self-acting seal was of order of 0.04 scfm for pressures above 60 psi which is well within the accepted range for gas turbine engine applications. |
| File Size | 704684 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720015854 |
| Archival Resource Key | ark:/13960/t4qk25x82 |
| Language | English |
| Publisher Date | 1972-05-01 |
| Access Restriction | Open |
| Subject Keyword | Machine Elements And Processes Evaluation Packings Seals Performance Tests Composite Materials Temperature Effects Shafts Machine Elements Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
