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In-Nozzle and Spray Diagnostic Techniques for Real Sized Pressure Swirl and Plain Orifice Gasoline Direct Injectors
Technical Paper
2003-01-3151
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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.
Authors
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.Also In
Oxygenated and Alternative Fuels, and Combustion and Flow Diagnostics
Number: SP-1809; Published: 2003-10-31
Number: SP-1809; Published: 2003-10-31
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