Stall detector and surge prevention feature for a gas turbine engine
作者： Rowland M. Evans
DOI:
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摘要: A proportional fuel control (11) regulates the flow (Wf) from a hydromechanical unit (36) based upon an error signal (E) representing difference between demanded speed (Nd) and actual (Nh). The is generated by integrator (32) as time integral of least plurality acceleration terms (Aa, Ab, Ac, Ad) selected select low gate (38). term (Aa) junction (26) scheduled (Ngs). Stress (Ac, are junctions (48, 50) scheduling means (42, 44) which form stress limiter circuits. stall (Ab) (46) (40) forms prevention feature.
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