In-Nozzle and Spray Diagnostic Techniques for Real Sized Pressure Swirl and Plain Orifice Gasoline Direct Injectors 2003-01-3151
The use of Direct Injection for spark ignition engines is increasing, with a noticeable trend towards smaller flow orifices as the requirement for improved atomisation increases and improved manufacturing capabilities allow micron sized holes to be mass produced. It is necessary therefore to develop test rigs and diagnostic techniques that will allow the collection of data from inside real sized nozzles in order to validate CFD models and allow optimized nozzle geometries to be rapidly designed and produced. This paper demonstrates real sized optical nozzles and diagnostic techniques that have allowed geometry evaluation and optimization in pressure swirl and plain orifice nozzles as small as 150μm.
Citation: Allen, J., Hargrave, G., and Khoo, Y., "In-Nozzle and Spray Diagnostic Techniques for Real Sized Pressure Swirl and Plain Orifice Gasoline Direct Injectors," SAE Technical Paper 2003-01-3151, 2003, https://doi.org/10.4271/2003-01-3151. Download Citation
Author(s):
Jeff Allen, Graham Hargrave, Yong Khoo
Affiliated:
Scion Sprays Ltd., Loughborough University
Pages: 15
Event:
SAE Powertrain & Fluid Systems Conference & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Oxygenated and Alternative Fuels, and Combustion and Flow Diagnostics-SP-1809
Related Topics:
Spark ignition engines
Nozzles
Test facilities
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