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A New Approach to Turbojet and Ramjet Engine Control
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English
Abstract
THE role of pneumatics as a computing medium for engine control in high-speed flight is indicated, and use of pressure ratio as the logical pneumatic control parameter is discussed. The Microjet concept of pressure ratio control, operating without springs and evacuated references, is introduced and compared to conventional means.
This principle is expanded to demonstrate various computing and function-generating operations with respect to theoretical and practical design criteria. Typical present and projected applications to the control of turbojet and ramjet engine cycles are illustrated.
This paper received the SAE Wright Brothers Medal for 1955.