上死点近傍燃料噴射による予混合圧縮着火機関の性能および排気特性(熱工学,内燃機関,動力など)

概要

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Premixed lean diesel combustion was performed in a condition that a fuel injection timing was near top dead center. To promote fuel-air mixing a micro-hole nozzle (nozzle hole diameter is 0.08 mm) and high pressure injection (up to 250 MPa) were used. Low cetane number fuel was used for main injector mounted at the bore center to make ignition delay. Small quantity of high cetane number fuel was supplied from two side injectors to control the ignition timing. As a result, low NO_x combustion was realized in an operating codition when the ignition started after several crank angles from injection end. Important factor to realize this combustion is to complete the fuel injection and vaporization before ignition.
一般社団法人日本機械学会の論文
2002-01-25