Electronically controlled mechanical seal for aerospace applications--Part 2: Transient tests
Electronically controlled mechanical seal for aerospace applications--Part 2: Transient tests
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DOI：
10.1080/10402009508983379
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发表时间：
1995
影响因子：
2.1
通讯作者：
P. Wolff;R. F. Salant
中科院分区：
文献类型：
--
作者：
P. Wolff;R. F. Salant
研制了一种用于液氧涡轮泵吹扫气密封的电子控制机械密封，并在瞬态工况下进行了试验。润滑膜的厚度通过调节碳面的锥度来控制。这是通过将电压施加到与碳面结合的压电致动器来实现的。该密封已与闭环控制系统一起运行，该系统利用泄漏率或密封面温度作为反馈。速度和压力瞬变都施加在密封上。瞬态试验表明，密封能够保持低泄漏率，同时限制端面温度。1994年5月1日至5日在宾夕法尼亚州匹兹堡举行的第49届年会上发表
An electronically controlled mechanical seal for use as the purge gas seal in a liquid oxygen turbopump has been fabricated and tested under transient operating conditions. The thickness of the lubricating film is controlled by adjusting the coning of the carbon face. This is accomplished by applying a voltage to a piezoelectric actuator to which the carbon face is bonded. The seal has been operated with a closed-loop control system that utilizes either the leakage rate or seal face temperature as the feedback. Both speed and pressure transients have been imposed on the seal. The transient tests have demonstrated that the seal is capable of maintaining low leakage rates while limiting face temperatures. Presented at the 49th Annual Meeting in Pittsburgh, Pennsylvania May 1–5, 1994