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Design study of shaft face seal with self-acting lift augmentation. 5: performance in simulated gas turbine engine operation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ludwig, L. P. Johnson, R. L. |
| Copyright Year | 1971 |
| Description | The feasibility and the noncontact operation of the self-acting seal was demonstrated over a range of simulated gas turbine engine conditions from 200 to 500 ft/sec sliding speed. Sealed pressure differentials were 50 to 300 psi and sealed temperatures were 150 to 1200 F. Low leakage (about 1/10 that of conventional labyrinth seals) was exhibited in two endurance runs (200 and 338 hr) at 400 ft/sec, 200 psi and 1000 F (gas temperature). For these endurance runs, the self-acting pad wear was less than 3.8 micrometers (0.00015 in.); this low wear was attributed to the noncontact operation of the primary seal. Operating problems identified were fretting wear of the secondary seal and erosion of the primary seal by hard particles. |
| File Size | 1026167 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720004770 |
| Archival Resource Key | ark:/13960/t5gb6vb1j |
| Language | English |
| Publisher Date | 1971-12-01 |
| Access Restriction | Open |
| Subject Keyword | Machine Elements And Processes Equipment Specifications Performance Tests Simulation Environmental Tests Packings Seals Glands Seals Turbine Engines 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 |
