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Emission Characteristics of a Dual-Injector Diesel Fuel Injection System
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Abstract
Environmentally speaking, simultaneous reduction of smoke and NOx with minimal effects on the fuel economy has been an ideal goal for diesel engine designers. In the past decade several in-cylinder approaches were proposed with various degrees of success in operation. Here, we consider one promissing technique called as double (split) or staged injection. A single-cylinder compression-ignition two-stroke research engine with optically-accessible head, mounted on a high-speed CFR engine crankcase, was used to investigate the combustion and emission characteristics of a dual-injector injection system. The injection system produces two separate independently-controlled sprays with a good degree of adjustability with regard to their fuel quantities and injection timings. Results are presented to show the effects of the varied injection system characteristics on the combustion and exhaust emissions ( NOx and smoke). The effects of the injection timing and time separation between the first and second injections of the dual injection system are explored. Conditions are identified for which a favorable influence on both smoke and NOx production is observed. A new injection system and strategy are proposed as a result of the data acquired in this study.
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Sinko, K., Shih, S., and Chehroudi, B., "Emission Characteristics of a Dual-Injector Diesel Fuel Injection System," SAE Technical Paper 960839, 1996, https://doi.org/10.4271/960839.Also In
References
- Oblander, K Kollmann, K Kramer, M. Kutschera, I. “The Influence of High Pressure Fuel Injection on Performance and Exhaust Emissions of a High Speed Direct Injection Diesel Engine,” SAE Paper 890438 1989
- Sato, T. Yamada, M. Kawagoe, M. Fujimura, K “Development of Mechanical Pilot Injection Device for Automotive Diesel Engines,” SAE Paper 891962 1989
- Shimada, T. Shoji, T. Takeda, Y. “The Effect of Fuel Injection Pressure on Diesel Engine Performance,” SAE 891919 1989
- Aoyama, T. Mizuta, J Oshima, Y. “NOx Reduction by Injection Control,” SAE Paper 900637 1990
- Shakal, J. Martin J “Effects of Auxilary Injection on Diesel Engine Combustion,” SAE Paper 900398 1990
- Shundoh, S. Kakegawa, T. Tusujimura, K. Kobayashi, S. “The Effect of Injection Parameters and Swirl on Disel Combustion with High Pressure Fuel Injection,” SAE Paper 910489 19991
- Uyehara, O. “A Method to Estimate H2 in Engine Exhaust and Fators that Affect NO x and Particulate in Diesel Engine Exhaust,” SAE Paper 910732 1991
- Shundoh, S. Komori, M. Tusujimura, K. Kobayashi, S. “NOx Reduction from Diesel Combustion Using Pilot Injection with High Pressure Fuel Injection,” SAE Paper 920461 1992
- Bower, G. R. Foster, D. E. “The Effect of Split Injection on Fuel Distribution in an Engine-Fed Combustion Chamber,” SAE Paper 930864 1993
- Tow T. C. Pierpont, D. A. Reitz, R. D. “Reducing Particulate and NOx Emissions by Using Multiple Injections in a Heavy Duty D. I. Diesel Engine,” SAE Paper 940897 1994
- Bower, G. R. “The Effect of a Split Injection on Early Combustion on an Engine-Fed Combustion Chamber,” University of Wisconson-Madison 1994
- Durnholz, M. Endres, H. Frisse, P. “Preinjection A Measure to Optimize the Emission Behavior of DI-Diesel Engine,” SAE Paper 940674
- Osuka, I. Nishimura, M. Tanaka, Y. Miyaki, M. “Benefits of New Fuel Injection System Technology on Cold Startability of Diesel Engines-Improvement of Cold Statability and White Smoke Reduction by Means of Multi Injection with Common Rail Fuel Injection (ECD-U2),” SAE Paper 940586 1994
- Pierpont, D. A. Montgomery, D. T. Reitz, R. D. “Reducing Particulate and NOx Using Multiple Injections and EGR in a D. I. Diesel Engine,” SAE Paper 950217 1995
- Pushka, D. Sinko, K. Chehroudi, B. “Engine-Based Image Acquisition for Piloted Diesel Fuel Spray Analysis,” SAE Paper 940679 1994
- Sinko, K. Pushka, D. Chehroudi, B. “Visualization of Interacting Pilot and Main Diesel-Type Sprays in an Engine” Journal of Flow Visualization and Image Processing 2 93 112 1995
- Campbell, P.H. Sinko, K. M. Chehroudi B. “Liquid and Vapor Phase Distributions in a Piloted Diesel Fuel Spray,” SAE Paper 950445 1995
- Liou, T.M. Hall, M.J. Santavicca, D.A. Bracco, F.V. “Laser Doppler Velocimetry Measurements in Valved and Ported Engines,” SAE Paper 840375 1984
- Boulouchos, K. Chehroudi, B. Bracco, F.V. “Preliminary Velocity and Pressure Measurements in the Intake Port of a Two-Stroke I.C. Engine,” ASME 109th Winter Annual Meeting Chicago, IL November 1988
- Bardsley, M.E.A. Gajdeczko, B. Boulouchos, K. Chehroudi, B. Bracco, F.V. “Measurements of the Three Components of the Velocity in the Intake Ports of I.C. Engine,” SAE Paper 890792 1989
- Chehroudi, B. Schuh, D “LDV Measurements of the Intake Port Flow in a Two-Stroke Engine with and without Combustion,” SAE Paper 920424 1992
- Blair, G. “The Basic Design of Two-Stroke Engines.,” SAE Publications Warrendale, PA 1990
- Ullman, T. L. Spreen, K. B. Mason, R. L. “Effects of Cetane Number on Emissions From a Prototype 1998 Heavy-Duty Diesel Engine,” SAE Paper 950251 1995
- Ziemacki, M.S. Wolff, G.D. “Digital Self-Calibrating Hall-Effect Sensor for Electronically Controlled Engines,” SAE Paper 860143 1986
- Yu, R. C Shahed, S. M. “Effects of injection Timing and Exhaust Gas Recirculation on Emissions from a D. I. Diesel Engine” SAE Paper 811234 1981
- Whitehouse, N. D. Clough, E. Uhunmwangho, S. O. “The Development of Some Gaseous Products During Diesel Engine Combustion,” SAE Paper 800028 1980