NASA-LLIS-4596
Lessons Learned - Deaeration of Hydraulic Fluid
active, Most Current
| Organization: | NASA |
| Publication Date: | 3 June 2011 |
| Status: | active |
| Page Count: | 3 |
scope:
Description of Driving Event:
To meet Space Shuttle launch requirements, the proportion of
dissolved air in the Orbiter's hydraulic fluid must be below 1
volume percent. Early in the Shuttle program, the deaeration system
that removed the dissolved air from the hydraulic fluid was found
to be unreliable and could not meet this requirement. A greater
proportion of dissolved air could lead to pump cavitation and
excessive softness in hydraulic-actuator force-versus-displac
Document History
NASA-LLIS-4596
June 3, 2011
Lessons Learned - Deaeration of Hydraulic Fluid
Description of Driving Event:
To meet Space Shuttle launch requirements, the proportion of dissolved air in the Orbiter's hydraulic fluid must be below 1 volume percent. Early in the Shuttle...
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