Improving gas supply to the intake system of a gas engine using a ring atomizer

Abstract

The possibilities of improving the performance of a gas engine with a multipoint gas injection to the intake system are considered when moving from the simplest system – an injector in the intake channel – to a ring atomizer that ensures uniform distribution of gas fuel across the cross section of the intake channel. A model of the Cummins isbe 6.7 gas engine was developed in the FlowVision software package with a single nozzle and a ring atomizer for gas supply. The 3D modeling carried out showed a more uniform distribution of gas throughout the cylinder in the case of an annular atomizer during the intake and compression processes. Calculations of the indicator diagram were carried out, showing that in the case of using a ring atomizer, the indicator parameters of both power and fuel efficiency of the engine will improve by 1.7 percent.