A Study on the Development of Fuel Metering Unit for Air Breathing Engine

Lee, Do-Yun; Choi, Hyun-Young; Park, Jong-Seung; Koo, Ja-Yoeng

Journal of the Korea Institute of Military Science and Technology 2005;8(4):152-158.

Do-Yun Lee, Hyun-Young Choi, Jong-Seung Park, Ja-Yoeng Koo

공기흡입식 추진기관용 연료조절밸브시스템 개발에 관한 연구

이도윤, 최현영, 박종승, 구자용

국방과학연구소

Abstract

In this paper, we have proposed a fuel metering unit of ai breathing engine. The proposed valve system consists of a constant pressure drop valve and a metering valve, which are controlled by servovalve. We carried out nonlinear and linear analysis, computer simulation and experimentation to find effects of some factors on system performance. Analysis and experimental results show a good agreement. It is also shown that the system stability is affected by pressure drop of metering valve and inlet pressure of injectors.

Key Words: Fuel metering unit, Constant pressure drop valve, Metering valve, Nozzle, Controller, Stability