A Review on Advanced Engines Technology

This document reviews some models of different advance engines such as rotary engine and free pist on engine. Rotary engine and free piston engine have b een used as one of the powerplants for unmanned aer ial vehicles because of its many unique features, such as higher power density, light weight, simple design, smooth operation, low vibration, and compact size. However, it also h as demerits, such as high fuel consumption and high er maintenance requirements. This report reviews the c urrent status of the heavy-fueled rotary engine com bustion technologies and overviews the technology gaps that need further research and development to improve i ts efficiency, performance, and durability and also re views the history of rotary engine and free-piston gas Generators.