Numerical simulation of gas exchange in two-stroke engine

In searching of new ways for increasing piston engine's efficiency, power and torque and reducing emission, this article reveals non-traditional problem's solving - using two-stroke piston with valves gas exchange mechanism instead of modern four-stroke piston engine for improving such characteristics as power-to-weight ratio, efficiency and fuel consumption with emission reducing. Numerical simulations were made in two different programs: Diesel-RK and AVL FIRE WorkFlow Manager. All the calculations validated to each other. This is not only numerical simulation of some new piston engine's construction, but also working method of designing and improving piston engines with such constructions and type of working processes.