TURBO-SUPERCHARGER DEVICE PROVIDED WITH COMPLEX SUPERCHARGER

摘要

PURPOSE:To make it possible to effectively recover the energy of exhaust gas from an engine, by disposing a complex supercharger in both intake-air passage upstream of a turbosupercharger and an exhaust passage downstream of the turbosupercharger so that the temperature of exhaust gas fed to the complex supercharger is lowered. CONSTITUTION:The rotating drive power of a turbine 20 in a turbosupercharger T which receives a high temperature and high pressure exhaust gas from an engine E through an engine side exhaust passage 17c rotates a compressor 21 so that supercharging air is fed into the engine E through an engine side intake- air passage 18c. The exhaust gas which has driven and rotated the turbine 20 is fed into the gas casing 10 of a complex supercharger C from which feed air is fed into the compressor 21 of the turbosupercharger 21.