发明名称 |
FACE SEAL WITH VARIABLE FRICTION SECONDARY SEAL |
摘要 |
Vibration and stability of a primary seal ring 18 is controlled by a secondary seal system 24. An inflatable bladder 26 which forms a portion of secondary seal varies the damping applied to this seal ring. The amplitude of vibration of the primary seal ring 18 is sensed with a proximity probe 34 that is connected to a microprocessor in a control system 32. The bladder pressure is changed by the control system 32 to mitigate any sensed instability or vibration. |
申请公布号 |
AU4794285(A) |
申请公布日期 |
1986.05.22 |
申请号 |
AU19850047942 |
申请日期 |
1985.09.27 |
申请人 |
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION NASA |
发明人 |
ELISEO DIRUSSO |
分类号 |
F16J15/34;F16J15/36;F16J15/38;F16J15/46 |
主分类号 |
F16J15/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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