Fuel system with variable speed pump to improve thermal management ability for aircraft engines

Abstract

Now, fuel systems on aircrafts/engines are required to rapidly improve thermal management technology. The proposed variable speed pump systems are a unique solution to improve the thermal management of aircrafts/engines without requiring a major change in the conventional interface between a jet engine and a fuel system. Concurrently, the proposed systems have the possibility to improve SFC by about 0.25% during cruise on a small turbofan engine due to reducing inefficient energy consumption. These systems lead to minimize the conventional cooling mechanisms and contribute to the additional improvement of SFC. The purpose of this paper is to show the characteristics of the proposed systems.