Turbocharger development and production at MTU Turbocharging is an integral component of the engine design concept. It shapes the characteristics of the engine more than almost any other system, as it affects its economy, dynamics and emission characteristics. This is why turbocharging is one of MTU’s key technologies. MTU has a tradition of maintaining the expertise for developing and producin...

Due to the complexity of the ship's systems early detection and isolation of the faults is of the essential importance for realization of a safe operation and necessary level of functionality. In this paper the main objectives of fault diagnosis are presented, such as detection, isolation and faults analysis. By simulating the appropriate faults in the turbocharger of the marine two stroke dies...

Engine downsizing is a trusted method to reduce fuel consumption and pollution emitted from internal combustion engines. In this method, engine displacement volume reduced while maintaining the same power/torque characteristics. However, there still exist several limitations utilize technology. paper, naturally aspirated type of Iran national (EF7-NA) investigated for possible downsized version...

This paper develops an exhaust manifold pressure estimation method for a Diesel engine equipped with a variable geometry turbine (VGT) turbocharger. Extrapolated VGT data-maps are used directly for the estimation of the exhaust pressure using a noniterative Newton-Raphson based method suitable for real-time applications. This approach can give more accurate estimations than traditional methods ...

A mean value model of a diesel engine with VGT and EGR is developed and validated. The intended model applications are system analysis, simulation, and development of model-based control systems. The goal is to construct a model that describes the dynamics in the manifold pressures, turbocharger, EGR, and actuators with few states in order to have short simulation times. Therefore the model has...

Abstract Under on-engine operating conditions, a turbocharger turbine is subject to pulsating flow and, consequently, experiences deviations from the performance measured in gas-stand conditions. Furthermore, due high exhaust gases temperatures, heat transfer further deteriorates performance. The complex interaction of aerothermodynamic mechanisms occurring inside hot-side, and consequently beh...

This paper describes friction compensation based control of an industrial pneumatic actuator used for the variable geometry turbocharger (VGT). Adaptive LuGre model for friction has been used in this work. Friction force that is responsible for hysteresis and hunting phenomenon in the position control is compensated with two different control strategies designed to improve low velocity position...

This paper analyses unstable mode of a free gas turbine turboshaft helicopter engine TV3-117. The analysis is focused on the conditions this phenomenon and possibilities its solution in an industrial turbocharger with turbine. Knowing causes operation will allow pilots to prevent accidents increase level flight safety.