Vortices can develop in intakes of turbojet and turbo fan aero engines during high power operation in the vicinity of solid surfaces. These vortices can cause catastrophic damage to the engine. The factors determining the formation of the vortex include both geometric dimensions as well as flow parameters. It was shown that the threshold at which the vortex forms or disappears is also dependent...

The paper presents a practical and relevant analytical calculation model for free turbine turboshaft working regimes engine performance. is based on post-processing method that analyzes series of experimental data, specifically focusing the percentage variations engine’s main parameters from minimum to takeoff regime. data were acquired three different types engines: TV2-117A turboshaft, AI-20K...

A turbojet engine is the most significant part of an Internal Combustion Engine (ICE) for Hybrid Electric Vehicles. Specifically, coaxial-rotor unit key component, whose performance largely affects working efficiency. Thereby, fault diagnosis methods units a main focus. In line with our test results, bearing circlip vulnerable element while rotating. Moreover, low-speed rotating even challengin...

Magnetic sensors are widely used in aeroengines and their health management systems, but they rarely installed the engine hot section due to loss of magnetic properties by permanent magnets with increasing temperature. The paper presents verifies models design solutions aimed at improving performance an inductive sensor for measuring motion blades operated elevated temperatures (200–1000 °C) hi...

This paper explores the implementation of an ejector to a micro turbojet engine and analysis advantages in terms acoustic thrust/fuel consumption. Starting with analytical equations series numerical simulations, optimal geometry for maximum thrust was obtained. The manufactured integrated Jet Cat P80 turbo testing. purpose this article is report on improved that results no significant increase ...