Loading...
Please wait, while we are loading the content...
Similar Documents
Transmission seal development
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Brien, M. |
| Copyright Year | 1977 |
| Description | An experimental evaluation was performed on a high-speed (72.9 m/s, 14,349 ft/min) transmission seal of the synergistic type. During testing of the seal, oil leakage occurred at positive bearing cavity pressures. Modifications were made in an attempt to eliminate the leakage but none were completely successful. Leakage appears to be the result of questionable positioning of the sealing elements resulting in inadequate shaft contact by the oil side sealing element. This condition may be related to the nonsymmetrical shape of the elastomeric retainer and to dimensional changes caused by swelling of the elastomeric retainer from exposure to the sealed fluid. Indications of a speed dependent leakage characteristic were also observed. |
| File Size | 9289182 |
| Page Count | 40 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790002252 |
| Archival Resource Key | ark:/13960/t1hj19z97 |
| Language | English |
| Publisher Date | 1977-10-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Leakage Seals Stoppers Oils Helicopters Elastomers Retaining Sealing Lubrication Systems Fluid Transmission Lines 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 |
