THERMOMECHANICAL IMPROVEMENT OF GAS–AIR SYSTEMS OF TURBOCHARGED PISTON INTERNAL-COMBUSTION ENGINES

Original methods for improving gas–air systems of turbocharged engines have been proposed. An analysis of the dependences of the gas-fl ow velocity and of the local heat-transfer coeffi cient in such a system on time has been made. As the criterion of assessment of the effi ciency of these systems, use was made of the level of turbulence of gas fl ow in them and of the averaged coeffi cient of its heat transfer. Gasdynamic and heat-transfer characteristics of various modifi cations of the indicated systems have been considered.
   
Author:  L. V. Plotnikov, B. P. Zhilkin, and Yu. M. Brodov
Keywords:  piston internal-combustion engines, turbocharged engines, gas–air intake and exhaust systems, gasdynamics, heat transfer, pulsating fl ows, turbulence level
Page:  1557