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Turbulent Burning Velocity of Lean Hydrogen Mixtures
SAE Technical Paper Series, 2003<div class="section abstract"><div class="htmlview paragraph">The present study is performed to examine experimentally the turbulent burning velocity characteristics of lean hydrogen mixtures with attention to the local burning velocity. The special mixtures, having nearly the same laminar burning velocity with different equivalence ratios ...
Hiroyuki Kido +3 more
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Dynamic Optimization of Lean Burn Engine Aftertreatment
Journal of Dynamic Systems, Measurement, and Control, 2000The competition to deliver fuel efficient and environmentally friendly vehicles is driving the automotive industry to consider even more complex powertrain systems. Adequate performance of these new highly interactive systems can no longer be obtained through traditional approaches, which are intensive in hardware use and final control software ...
Jun-Mo Kang +2 more
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The Volkswagen Lean Burn PC-Engine Concept
SAE Technical Paper Series, 1980<div class="htmlview paragraph">Results from the 1600 cm<sup>3</sup> PCI- (PreChamber Injection) Stratified Charge Engine with a divided combustion chamber and fuel injection into the prechamber were described in SAE Paper 750 869. The main objective of continued development on this engine was to meet future emission and fuel economy ...
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DeNOx catalyst for automotive lean-burn engine
Catalysis Today, 1996Abstract The performance and durability of Cu-ZSM-5 were studied. Cu-ZSM-5 has fairly high NOx reduction activity but its durability is insufficient for practical use. We developed a new deNOx catalyst. In this catalyst, we call NOx storage reduction catalyst (NSR-catalyst), NOx emitted from an engine at lean A F operation is stored and this ...
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Development of lean NOx catalyst for lean burn gasoline engine
1999Abstract Lean NOx catalyst for a lean burn gasoline engine was developed. This catalyst could constantly reduce NOx under lean burn driving condition by using hydrocarbon as a reducing agent. This catalyst consists of platinum (Pt), iridium (Ir) and rhodium (Rh) as active metals and H-MFI type zeolite as a support material.
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Development of KMC 2.4L Lean Burn Engine
SAE Technical Paper Series, 1995<div class="htmlview paragraph">This paper describes the development process and test results of the lean burn engine. LML (Lean Misfire Limit) extension and NOx emission reduction was realized in combination with the following factors. (1) Installing several types of SCV (Swirl Control Valve) with different section shapes and dividing wall in ...
Chulho Yu +5 more
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Effusion Cooling System Optimization for Modern Lean Burn Combustor
Volume 5B: Heat Transfer, 2016Stricter legislation limits concerning NOx emissions are leading main aero-engine manufacturers to update the architecture of the combustors towards the implementation of lean burn combustion concept. Cooling air availability for the thermal management of combustor liners is significantly reduced, demanding even more effective liner cooling schemes ...
Andreini, Antonio +5 more
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Evolution of Lean-NOx Traps on PFI and DISI Lean Burn Vehicles
SAE Technical Paper Series, 1999<div class="htmlview paragraph">This paper charts the development of three three-way catalyst (TWC) and four lean-NOx trap (LNT) formulations in four vehicle systems over a four-year period. All LNTs were installed in an underbody location behind a close-coupled TWC on vehicles equipped with either port fuel injection (PFI) or direct injection ...
D. Gregory +6 more
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Study on simulation of Lean NOx Trap for lean burn gasoline engine
2011 Second International Conference on Mechanic Automation and Control Engineering, 2011The adsorption reduction mechanism and main chemical reactions were analyzed. After that, a Lean NOx Trap (LNT) model based on Simulink was constructed in this paper. Grounded on our calculation results, precisely control of the transition between rich and lean combustion mode was obtained.
null Jia Xuyan +4 more
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Mixing Zone Optimization of a Rich-Burn/Quick-Mix/Lean-Burn Combustor
Journal of Propulsion and Power, 1999The mixing process of hot primary zone gases with secondary air must be rapid and intense for an advanced low NOX gas turbine based on a rich-burn/quick-mix/lean-burn (RQL) combustor. The injection of multiple jets normal into a confined crossflow is a key technology for this combustion concept. Therefore, an experimental investigation of a nonreacting
M. Blomeyer +3 more
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