14, and to a method of operating such an engine, in which the engine is operated lean at relatively low engine demands, and repeatedly switched between lean and relatively rich operation on subsequent cycles of engine cylinders 11-14 at higher engine demands in order to reduce engine emissions...
We study the dynamics of small spherical flame kernels whose evolution is triggered in a lean mixture of a light mobile reactant by a time-dependent point-... GUY,JOULIN - 《Combustion Science & Technology》 被引量: 105发表: 1985年 Chemical Structures of Fuel-Rich, Premixed, Laminar Flames...
Pt containing catalysts had been found to be more active as the reactant mixture was shifted from oxygen–rich to methane–rich. The platinum catalysts were superior to palladium in a fuel-rich gas mixture. Thus, platinum had a role as a component in the catalyst for emission control of ...
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While here a time of duration under a lean condition of the output of the air- fuel ratio sensor is monitored, if the monitored time reaches at least a prescribed value, a lean monitor is operated to release feedback control. In this way, an overrich state of air-fuel ratio due to a...
The fuel mixer (88) has a fuel/air mixing disk (85) disposed within the body proximate the flared end (81). A disk axis of the fuel/air mixing disk (85) is substantially parallel to the axis of the fuel mixer body. The fuel/air mixing disk (85) has a plurality of holes (90) ...
Generally, during vehicle operation, the controller 14 selects a suitable engine operating condition or operating mode characterized by combustion of a “near-stoichiometric” air-fuel mixture, i.e., one whose air-fuel ratio is either maintained substantially at, or alternates generally about, the ...
Precise control of air-fuel ratio (AFR) is one of the most challenging tasks in lean-burn spark ignition engines control. The main problem arises because of the large time-varying delay in the engine operating envelope. In this study, a new sliding mode-based synthesis method is presented to...
There is provided an air-fuel ratio control system for an internal combustion engine installed on an automotive vehicle. The control system controls the air-fuel ratio of a mixture supplied to the eng