Experimental investigation of an overriding control to effect recovery from surge and stall in a turbojet engine
Description: The override was designed to automatically recover the engine from stall and surge by reducing fuel flow and then increasing fuel flow in a manner to avoid repeated stalls and surges and successfully complete the acceleration. One of two parameters was used to operate the override, tailpipe temperature, or the derivative of compressor-discharge pressure. The override operating with tailpipe temperature recovered the engine from stall and surge. Operating on compressor-discharge-pressure derivative, the override recovered the engine from surge, but failed when stall was encountered.
Date: October 29, 1956
Creator: Stiglic, Paul M. & Heppler, Herbert
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Partner: UNT Libraries Government Documents Department