1. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Equivalent hole diameter along the orifice of the injector

2. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Mass flow and momentum flux as a function of time for the “Spray A” injection case

3. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Discharge coefficient as a function of Reynolds number for two discharge pressures

4. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Area coefficient as a function of Reynolds number for two discharge pressures

5. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Sketch of the experimental arrangement to record injector acceleration

6. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Phase-contrast imaging experimental arrangement to record needle motion

7. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
), mass flow rate (g/s), and momentum flux (N) for two injection durations. The difference in time between control volume closure and EOI is also indicated. pinj = 150 MPa; pb = 20 bar.

8. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Normalized spectral density of ROI, momentum, acceleration, and line pressure at “Spray A”

9. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
X-ray beam absorption to show injector oscillations during “Spray A” injection

10. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Needle position and speed in the axial direction as a function of time for the “Spray A” case

11. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Normalized spectral density of the acceleration, injector oscillations, and needle speed for “Spray A”

12. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Schematic of the injector showing the internal fuel tubing and the mechanism to action the needle

13. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Normalized spectral density of the ROI, momentum, and acceleration for the large oscillations period during a 4-ms-long injection

14. Date of download: 10/27/2017
Copyright © ASME. All rights reserved.
From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector
J. Eng. Gas Turbines Power. 2012;134(12): doi: /
Figure Legend:
Projected fuel density in the spray (0.1 mm from exit) as a function of time for “Spray A” injection. The dashed lines represent a period of the main oscillations.