A high pressure combined air-fuel injection system is designed and tested for an experimental free liquid-piston engine compressor. The application discussed utilizes available high pressure air from the compressor’s reservoir, and high pressure fuel to mix and then inject into a combustion chamber. This paper addresses the modeling, design and control for this particular high-pressure air-fuel injection system, which features an electronically controlled air/fuel ratio control scheme. This system consists of a fuel line and an air line, whose mass flow rates are restricted by metering valves. These two lines are connected to a common downstream tube where air and fuel are mixed. By controlling the upstream pressures and the orifice areas of the metering valves, desired A/F ratios can be achieved. The effectiveness of the proposed system is demonstrated by a lumped-parameter model in simulation and validated by experiments.
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ASME 2009 Dynamic Systems and Control Conference
October 12–14, 2009
Hollywood, California, USA
Conference Sponsors:
- Dynamic Systems and Control Division
ISBN:
978-0-7918-4893-7
PROCEEDINGS PAPER
Modeling and Control of a High Pressure Combined Air/Fuel Injection System Available to Purchase
Eric J. Barth
Eric J. Barth
Vanderbilt University, Nashville, TN
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Chao Yong
Vanderbilt University, Nashville, TN
Eric J. Barth
Vanderbilt University, Nashville, TN
Paper No:
DSCC2009-2769, pp. 361-368; 8 pages
Published Online:
September 16, 2010
Citation
Yong, C, & Barth, EJ. "Modeling and Control of a High Pressure Combined Air/Fuel Injection System." Proceedings of the ASME 2009 Dynamic Systems and Control Conference. ASME 2009 Dynamic Systems and Control Conference, Volume 2. Hollywood, California, USA. October 12–14, 2009. pp. 361-368. ASME. https://doi.org/10.1115/DSCC2009-2769
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