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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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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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NO storage/reduction over lean-burn automotive catalysts
Applied Catalysis B: Environmental, 2007This paper shows the behavior of a Pt/Ba/¿–Al2O3 automotive catalyst in a fixed bed reactor during cyclic operation at lean and rich gas phase conditions at short (seconds) and long (hours) cycling times at different temperatures. Reactor exit gas phase concentrations have been measured and catalyst properties have been determined before and after ...
Scholz, C.M.L. +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 Versus EGR S. I. Engine
SAE Technical Paper Series, 1995<div class="htmlview paragraph">Lean burn and EGR concepts are being used increasingly in spark-ignition engines. Compared with a stoichiometric petrol engine, however, these dilution concepts are said to give a certain reduction in power output, in particular with higher EGR ratios or under lean mixtures near the minimum flammability limit. Some
J. Hacohen +2 more
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The Hybrid Rich-Burn/Lean-Burn Engine
Journal of Engineering for Gas Turbines and Power, 1997This paper describes a new low-emissions engine concept called the hybrid rich-burn/lean-burn (HRBLB) engine. In this concept a portion of the cylinders of a multicylinder engine are fueled with a very rich natural gas-air mixture. The remaining cylinders are operated with a lean mixture of natural gas and air and supplemented with the rich combustion ...
D. P. Meyers, J. T. Kubesh
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Homogeneous Chemistry in Lean-Burn Exhaust Mixtures
The Journal of Physical Chemistry A, 1997The search for catalysts capable of reducing NOx in the exhaust of internal combustion engines operated in the lean-burn mode is presently focused on copper-exchanged zeolites. Despite intensive study, the mechanism of reduction over these catalysts is not well understood. In this study new complications are revealed.
Julian Smith +5 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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