Experimental Study of Combustion Regular Gasoline Engine Acceleration Transient Conditions

Abstract

Testing on the the AJR-type gasoline Santana 2000 sedan, processed and analyzed experimental data obtained from two acceleration transient operating conditions that one is increasing speed and constant torque, another is constant speed and increase the torque. Compared with the corresponding steady-state conditions, summed up the burning regulation of the gasoline engine at the transient operating conditions: The mean indicated pressure and the maximum combustion pressure is greater than the corresponding steadystate conditions under the two acceleration transient operating conditions. The mean indicated pressure and maximum combustion pressure fluctuations with increasing engine speed, under the increasing speed and constant torque condition, decreased after increasing, its maximum value was in the intermediate stage of the acceleration process. Increased torque and constant speed conditions the mean indicated pressure and the maximum combustion pressure increases gradually with increasing torque constant speed, its maximum at the maximum torque.