STRUCTURE OF THE AIR FLOW IN THE CYLINDER OF ENGINES WITH INLET PIPELINES OF VARIOUS CONFIGURATIONS

Results are presented of an experimental investigation into the structure of a steady-state air fl ow in a cylinder of reciprocating internal combustion engines with intake systems of various designs when it is fi lled through a poppet valve on the basis of the method of thermal visualization imaging. It has been established that cross profi ling of cylinder inlet pipes has a substantial eff ect on the structure of the fl ow in it. It is shown that the use of square and triangular pipes makes it possible to obtain a more uniform fl ow distribution through the cylinder volume compared to pipes of other confi gurations, which ensures a more complete combustion of the fuel–air mixture and, accordingly, an improvement of technical-economic and environmental performance of a piston engine
Results are presented of an experimental investigation into the structure of a steady-state air fl ow in a cylinder of reciprocating internal combustion engines with intake systems of various designs when it is fi lled through a poppet valve on the basis of the method of thermal visualization imaging. It has been established that cross profi ling of cylinder inlet pipes has a substantial eff ect on the structure of the fl ow in it. It is shown that the use of square and triangular pipes makes it possible to obtain a more uniform fl ow distribution through the cylinder volume compared to pipes of other confi gurations, which ensures a more complete combustion of the fuel–air mixture and, accordingly, an improvement of technical-economic and environmental performance of a piston engine
Author:  L. V. Plotnikov
Keywords:  internal combustion engine, cylinder, intake system, profi led pipes, steady fl ow, experimental investigations
Page:  1604