A study of the internal flow in the most used nozzle types in Diesel engines (microSAC and valve covered orifice VCO) was carried out in order to compare injection characteristics and understand the differences between them. To determine these differences, several experimental installations will be used, such as the injection rate test rig, steady flow test rig and spray momentum test rig, to obtain a full hydrodynamic characterization.With the help of the silicone methodology and a microscope, it is possible to determine the needle tip geometry (seat). As the geometrical characterization of the components in both nozzles was known, it was possible to carry out a CFD analysis at several needle lifts and thus observe the behavior of the internal flow in the nozzle seats and be able to compare both nozzles
Influence of Nozzle Seat Type on Internal Flow of Convergent Nozzles
Sae Technical Papers
2004 SAE Fuels & Lubricants Meeting & Exhibition ; 2004
2004-06-08
Conference paper
English
Influence of nozzle seat type on internal flow of convergent nozzles
Automotive engineering | 2004
|Critical Flow Through Convergent Nozzles
Emerald Group Publishing | 1951
Critical Flow Through Convergent-Divergent Nozzles
Emerald Group Publishing | 1951