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NASA-LLIS-0965
Lessons Learned - Space Shuttle Main Engine (SSME): Turbopump Bearing Lubrication
Year: 1995
Abstract: 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.
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.
Subject: Configuration Management
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T18:42:33Z | |
| date available | 2017-09-04T18:42:33Z | |
| date copyright | 05/15/1995 | |
| date issued | 1995 | |
| identifier other | JZTEQCAAAAAAAAAA.pdf | |
| identifier uri | https://lib.yabesh.ir/std/handle/yse/224008 | |
| description abstract | 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. | |
| language | English | |
| title | NASA-LLIS-0965 | num |
| title | Lessons Learned - Space Shuttle Main Engine (SSME): Turbopump Bearing Lubrication | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1995 | |
| contenttype | fulltext | |
| subject keywords | Configuration Management | |
| subject keywords | Cryogenic Systems | |
| subject keywords | Ground Equipment | |
| subject keywords | Hardware | |
| subject keywords | Launch Vehicle | |
| subject keywords | Parts Materials & Processes | |
| subject keywords | Safety & Mission Assurance | |
| subject keywords | Spacecraft | |
| subject keywords | Test Article | |
| subject keywords | Test Facility |