Experiment study on spray structure of a multi-hole GDI injector

Ding, Hu; Du, Huang; Huang, Ronghua; Wang, Zhaowen

doi:10.1109/iceice.2011.5777127

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…Taking into account the jet breakup length L differences may bring error, so we choose two places downstream the spray (x=80d and x=100d) and obtain the two spray width there respectively. Similar method can be viewed in literature [17]. The arctangent function is used to calculate the spray angle, and the results is shown in Fig.…”

Section: Different Percent Of Max Light Intensitymentioning

confidence: 96%

Spray Distribution of Plain Orifice Atomizer in Preheated Air Flow

Qian

Liu

Xie

et al. 2014

AMR

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An experiment by taking photos of the spray field behind plain orifice atomizer was conducted to study its atomization in preheated air flow. The air flow condition was 0.14~0.2 Mach number and 300~400°C. Fuel-to-air momentum flux ratioQvaried from 0.4 to 9, and Weber numberWecovered the range of 60~140. Photos were analyzed by Matlab image processing toolbox. The results indicate that under the experiment conditions: (1) Under the same temperature, jet breakup length increases withQincreasing, and decreases with the increase ofWe. (2) As the air flow temperature increases from 300°C to 400°C, jet and air flow interaction affect the liquid column breakup more greatly than surface tension. (3) Under the same temperature, spray angle increases with the increase ofQ. (4) As the air flow temperature increases from 300°C to 400°C, evaporation affects the atomization more greatly than pneumatic nebulization.

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Section: Different Percent Of Max Light Intensitymentioning

confidence: 96%

Spray Distribution of Plain Orifice Atomizer in Preheated Air Flow

Qian

Liu

Xie

et al. 2014

AMR

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“…In [4], the effects of injection pressure, ambient pressure and ambient temperature are examined using high speed CCD cameras for GDI. Image processing is performed with MatLab and the analysis encompasses the spray tip penetration and the spray cone angle.…”

Section: Introductionmentioning

confidence: 99%

Image-processing assisted characterization of spray injection systems

Baccaglini

Gavelli

Morello

et al. 2015

2015 IEEE International Conference on Industrial Technology (ICIT)

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The objective of this work is to investigate the spray characteristics of a fuel injection nozzle. The analysis is performed by means of a framework which exploits different image processing techniques to provide spray-related data to the operator. Innovative metrics are introduced to increase the accuracy and efficiency of the scheme. Experimental results show that it is possible to automatically get useful information about the spray distribution, asymmetries and key properties together with the capability to measure significant angles and other information to detect anomalies in the injection system.

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