MATEC Web Conf.
Volume 95, 20172016 the 3rd International Conference on Mechatronics and Mechanical Engineering (ICMME 2016)
|Number of page(s)||6|
|Section||Power Mechanical Engineering|
|Published online||09 February 2017|
Effect of Injection Location and Multi-Hole Nozzle on Mixing Performance in a CNG-Fuelled Engine with Port Gas Injection, Using CFD Analyses
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
A compressed natural gas injection device with moving-coil electromagnetic linear actuator and mushroom type poppet valve was designed to supply a large-bore intake port injection type engine with sufficient fuel timely. The transient engine CFD model combined with the poppet valve's motion was established to research the effect of injection conditions on the mixing homogeneity in the intake port and cylinder. Computed penetration distances of impinging jet with different k-ε models and different wall functions are compared with measured results in the literature to validate the model. It was observed that the gas injection location and number of nozzle holes have a significant effect on mixing performance both in the intake port and cylinder.
© The Authors, published by EDP Sciences, 2017
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