This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Direct Fuel Injector Temporal Measurements
Technical Paper
2014-01-1444
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The objective of this study is to measure high-frequency, short-duration, actual liquid fuel spray events using a simple photo detector and validate the results with high-speed camera measurements. This paper presents an optical approach for detecting bulk fuel injection's temporal characteristics, i.e. opening delay and duration times. A key component in the measurement system is a commercially available low-cost photo detector which is shown to be highly effective for detecting high frequency, short duration spray events. The paper provides an in-depth discussion of a photo detector based measurement system, a test fixture, and its validation. Test results with a two-stage pulse-width-modulation (PWM) current controlled approach are provided for various operation parameter settings. Its effectiveness is validated by comparing with the results obtained with a high-speed camera.
Recommended Content
Authors
Topic
Citation
Zhang, X., Palazzolo, A., Kweon, C., Thomas, E. et al., "Direct Fuel Injector Temporal Measurements," SAE Technical Paper 2014-01-1444, 2014, https://doi.org/10.4271/2014-01-1444.Also In
References
- BOSCH HDEV 5.2 data sheet http://www.bosch-motorsport.de/content/language2/html/3444.htm
- Wolff , G. Needle position sensing system for a fuel injector nozzle holder U.S. Patent 4366706 January 4 1983
- Mausner , E. Fuel injector nozzle with needle lift sensor U.S. Patent 4667511 May 26 1987
- Maier , S. and Stilling J. Method for measuring the lift of a valve needle of a valve and for adjusting the volume of media flow of the valve U.S. Patent 5775355 July 7 1998
- Coppo , M. , Dongiovanni C. , and Negri C. A Linear optical sensor for measuring needle displacement in common-rail diesel injectors Sensors and Actuators a-Physical 134 2 366 373 2007 10.1016/j.sna.2006.05.038
- Bosch , W. Fuel Rate Indicator - a New Measuring Instrument for Display of Characteristics of Individual Injection SAE Transactions 75 148 1967
- Zeuch , W. Neue Verfahren zur Messung des inspritzgesetzes udn einspritz-Regelmassigkeit von Diesel-Einspritzpumpen MTZ 22 9 6 1961
- Marcic , M. A new method for measuring fuel-injection rate Flow Measurement and Instrumentation 10 3 159 165 1999 10.1016/S0955-5986(98)00053-3
- Szwaja , S. An optical method for measuring the dynamic parameters of an engine injector Journal of Kones, Combustion Engines 8 1-2 2001
- Naber , J. and Siebers , D. Effects of Gas Density and Vaporization on Penetration and Dispersion of Diesel Sprays SAE Technical Paper 960034 1996 10.4271/960034
- Ismailov , M. et al. Visualization and measurements of sub-millisecond transient spray dynamics applicable to direct injection gasoline engine Part 1: Visualization of spray using high speed video camera and laser sheet technique Jsme International Journal Series B-Fluids and Thermal Engineering 41 4 983 990 1998
- Yue , Y. et al. Quantitative measurements of diesel fuel spray characteristics in the near-nozzle region using X-ray absorption Atomization and Sprays 11 4 471 490 2001
- Parrish , S.E. and Zink R.J. Development and application of a high-speed planar laser-induced fluorescence imaging system to evaluate liquid and vapor phases of sprays from a multi-hole diesel fuel injector Measurement Science & Technology 24 2 2013 10.1088/0957-0233/24/2/025402
- Photodarlington optical interrupter switch user's manual Fairchild Semiconductor Corporation 2002
- Payri , R. et al. Determination of diesel sprays characteristics in real engine in-cylinder air density and pressure conditions Journal of Mechanical Science and Technology 19 11 2040 2052 2005
- Hiroyasu , H. and Arai , M. Structures of Fuel Sprays in Diesel Engines SAE Technical Paper 900475 1990 10.4271/900475
- Kook , S. and Pickett L.M. Effect of Ambient Temperature and Density on Diesel-Spray-Generated Shock Waves ILASS Americas, 21st Annual Conference on Liquid Atomization and Spray Systems Orlando, Florida 2008
- Zhang , X. , Palazzolo , A. , Kweon , C. , Thomas , E. et al. Direct Fuel Injector Power Drive System Optimization SAE Technical Paper 2014-01-1442 2014
- Tat , M.E. , Van Gerpen J.H. , and Wang P.S. Fuel property effects on injection timing, ignition timing, and oxides of nitrogen emissions from biodiesel-fueled engines Transactions of the Asabe 50 4 1123 1128 2007
- Postrioti , L. , Battistoni , M. , Grimaldi , C. , and Millo , F. Injection Strategies Tuning for the Use of Bio-Derived Fuels in a Common Rail HSDI Diesel Engine SAE Technical Paper 2003-01-0768 2003 10.4271/2003-01-0768
- Bittle , J. , Knight , B. , and Jacobs , T. The Impact of Biodiesel on Injection Timing and Pulsewidth in a Common-Rail Medium-Duty Diesel Engine SAE Int. J. Engines 2 2 312 325 2009 10.4271/2009-01-2782