NASA-LLIS-0965
Lessons Learned - Space Shuttle Main Engine (SSME): Turbopump Bearing Lubrication
active, Most Current
| Organization: | NASA |
| Publication Date: | 15 May 1995 |
| Status: | active |
| Page Count: | 2 |
scope:
Description of Driving Event:
In the SSME, a small recirculation flow is maintained by flowing the propellant through a bleed valve located at the main fuel valve to an overboard dump line or pumped back into the LH2 inlet. Recirculation flow of LOX is maintained by flowing LOX through a bleed valve located a the fuel preburner oxidizer valve to an overboard dump system. These recirculation flows have successfully eliminated gas pockets in the LH2 and LOX systems.
Document History
NASA-LLIS-0965
May 15, 1995
Lessons Learned - Space Shuttle Main Engine (SSME): Turbopump Bearing Lubrication
Description of Driving Event:
In the SSME, a small recirculation flow is maintained by flowing the propellant through a bleed valve located at the main fuel valve to an overboard dump line or pumped...
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