Abstract
This paper examines the possibilities for controlling the combustion phases in the high speed direct injection Diesel engines. The combustion phases are a critical parameters for the fuel conversion efficiency, smoothness of operating characteristics, misfire, smoke emissions, noise and ease of starting. Generally, in direct injection Diesel engines for passenger's car, is necessary a better control of combustion phases if the speed of engine increase.
In this paper are presented the theoretically and experimentally results of the studies develops in
Automotive and Engines Department of University Transilvania of Brasov for a better understanding of combustion time in D. I. Diesel engines, with application in direct injection Diesel engines for passenger's car design and manufacture.