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SAE Technical Paper Series, 2013
<div class="section abstract"><div class="htmlview paragraph">Natural gas internal combustion engines are currently worthy of attention due to the growing interest in energy generation equipments that are both efficient and environmentally friendly.</div><div class="htmlview paragraph">As an answer to this interest, natural gas ...
Marcio Perin, Thiago Achek
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<div class="section abstract"><div class="htmlview paragraph">Natural gas internal combustion engines are currently worthy of attention due to the growing interest in energy generation equipments that are both efficient and environmentally friendly.</div><div class="htmlview paragraph">As an answer to this interest, natural gas ...
Marcio Perin, Thiago Achek
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SAE Technical Paper Series, 1997
<div class="htmlview paragraph">Lean burn and EGR are two commonly used technologies for improving fuel consumption and controlling emissions. Each has advantages and disadvantages when applied to an engine and, qualitatively at least, these effects are well known. To meet future emissions and fuel consumption constraints, most production engines
Grant Lumsden +2 more
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<div class="htmlview paragraph">Lean burn and EGR are two commonly used technologies for improving fuel consumption and controlling emissions. Each has advantages and disadvantages when applied to an engine and, qualitatively at least, these effects are well known. To meet future emissions and fuel consumption constraints, most production engines
Grant Lumsden +2 more
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Development of Lean Burn Catalyst
SAE Technical Paper Series, 1995<div class="htmlview paragraph">A new type of three way catalyst for lean engine was developed in order to reduce hydrocarbon (HC), carbon-monoxide (CO) and nitrogen-oxides (NOx) in lean exhaust gas. This catalyst has a base support material of MFI zeolite loaded with active metals including platinum (Pt), iridium (Ir) and rhodium (Rh). It showed
Akihide Takami +4 more
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SAE Technical Paper Series, 1988
<div class="htmlview paragraph">Theoretical analysis of flame propagation through catalytically activated mixtures and fundamental experiments with a catalytic plug-flow reactor have shown that catalytic prereaction can increase flame velocity and can reduce minimum ignition energy requirements.
Steven W. Beyerlein, Stanislaw Wojcicki
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<div class="htmlview paragraph">Theoretical analysis of flame propagation through catalytically activated mixtures and fundamental experiments with a catalytic plug-flow reactor have shown that catalytic prereaction can increase flame velocity and can reduce minimum ignition energy requirements.
Steven W. Beyerlein, Stanislaw Wojcicki
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Multivariable Control of Lean-Burn Engines
IFAC Proceedings Volumes, 1987Abstract Lean-bum engines need extremely accurate closed-loop controls both during static operation and during transients in order to prevent misfires and excessive emissions of hydro-carbons, to achieve stable combustion and low engine roughness, and to obtain good response to throttle commands.
C.E. Baumgartner +2 more
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Development of Toyota Lean Burn Engine
SAE Technical Paper Series, 1976<div class="htmlview paragraph">This engine has been developed to achieve lean combustion. A prechamber which is named as the Turbulence Generating Pot (TGP) was developed to extend the lean misfire limit and also to increase flame propagation velocity.
M. Noguchi, S. Sanda, N. Nakamura
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Adaptive intake oxygen estimation in lean-burn engines
2012 American Control Conference (ACC), 2012The oxygen concentration in the intake manifold of a lean-burn engine is a key variable that is directly related to the quality of combustion. In this paper, an adaptive observer is developed to estimate the intake oxygen concentration in the intake manifold of a lean-burn engine using measurements from existing sensors with minimum computational load.
Jun-Mo Kang +3 more
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Development of Methanol Lean Burn System
SAE Technical Paper Series, 1986<div class="htmlview paragraph">A methanol fueled, lean burn system has been developed to improve both specific fuel consumption and NOx emissions.</div> <div class="htmlview paragraph">A 1.6L four-cylinder engine with increased compression ratio has been used to develop this system.
Kenji Katoh +2 more
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Lean burn: A Review of Incentives, Methods, and Tradeoffs
SAE Technical Paper Series, 1988<div class="htmlview paragraph">A summary of theoretical considerations that motivate the development of lean burn systems is presented along with a review of the most common approaches used to implement this technique. An analysis of experimental data from several sources is then introduced in order to substantiate the advantages and indicate ...
Aparicio J. Gomez, Paul E. Reinke
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Prechamber for Lean Burn for Low NOx
SAE Technical Paper Series, 1995<div class="htmlview paragraph">To ignite very lean natural gas mixture it is necessary to use prechambers. The extension of lean limit of a combustion system is given by citing an example. The orifice diameter from the prechamber to the main chamber has a strong effect. The magnitude of the effect for one particular example is shown.
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