发明名称 |
Compressor stall diagnostics and avoidance |
摘要 |
A pressure sensor (12) is located in the compressor stage of a gas turbine engine (10) to provide a pressure signal (PR1) that shows the compressor flow characteristics. The pressure signal (PR1) is applied to a bandpass filter (16) with roll-offs above and below N2. The difference between the filter output and a stored value for the pressure signal is integrated, and compressor bleed valves (18) are opened if the integral exceeds a stored threshold. The health of a compressor stage is determined by analyzing the magnitude of compressor pressure variations at N2 while accelerating the engine and by comparing the magnitude with values obtained from a compressor with a known stall margin. |
申请公布号 |
AU5850796(A) |
申请公布日期 |
1996.11.18 |
申请号 |
AU19960058507 |
申请日期 |
1996.04.17 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
JEFFREY B. GERTZ;OM PARKASH SHARMA;KEVIN M. EVEKER;CARL N. NETT;DANIEL L. GYSLING;MATTHEW R. FEULNER |
分类号 |
F04D27/02 |
主分类号 |
F04D27/02 |
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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