Transition of Niigata’s Medium Speed Diesel Engines over the Recent 50 Years

A Finite Elements Procedure for Evaluating Injectors Reliability of Medium Speed Diesel Engines

A kind of injection nozzle manufactured since 1990 and utilized for ten thousands of motors, has recently showed a series of failures. These failures have happened only in one naval equipment and during a short period of time. In any case an uncertainty relative to sizing criteria arose. With reference to this problem, in the present work a methodology for performing a more careful structural a...

Particle formation, deposition, and particle induced corrosion in large-scale medium-speed diesel engines

The objective of this work was to study the formation of particles and their morphology and chemical composition in large-scale diesel engines operating with low-grade residual fuel oils. The effect of a Mg-based fuel oil additive on exhaust gas particles was also investigated. Particle characteristics were determined by means of the methods of aerosol technology, chemical analyses, and electro...

prediction of ignition delay period in d.i diesel engines

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

Diesel engines for light-to-medium helicopters and airplanes (Editorial)

Optimization of waste gate in the diesel engines with turbocharger

The usage of turbochargers in diesel engines has led to the downsizing of the motors as well as usage of the waste gates in turbochargers. Any dimensional reduction in turbochargers and appurtenant leads to an enhancement on the performance of internal combustion engines and in environmental problems in terms of aerodynamic, thermodynamic and mechanical specifications for both engines and turbo...