Gas Exchange Process of Four-Stroke Spark Ignition Engines Under the Condition of Partial Load, a Medium or Low Speed (3rd Report)
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概要
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Exhaust gas recirculation (EGR) is one of the most available reduction methods of NO concentration in the exhuast gas, and there are generally two ways in EGR: one is external EGR and the other is internal EGR that is mainly controled by the valve timing. In this paper, it is shown that the burned gas amount in the intake air charge, that is the amount internal EGR, depending upon the valve timing, throttle degree, mainfold volume, number of cylinder, and engine speed, can be predicted by the method of predicting the volumetric efficiency already written in the previous paper, 1st report. This method is examined to compare the predicted values with the experimental ones using CO_2 as the tracer gas and confirmed for good agreement of their tendencies. Moreover, the general effects of the valve timing on the internal EGR are shown by this prediction method.
- 一般社団法人日本機械学会の論文
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関連論文
- A Study on Fuel Injection System in Diesel Engine : Part 2,Flow-chart, Calculation, Comparative Investigation and Its Application (the Transactions of the Japan Society of Mechanical Engineers) : Papers published in the Bulletin of the JSME are not includ
- A Study on Fuel Injection System in Diesel Engine : Part 1,Assumptions, Classification of Fuel Injection Phenomena, Basic Equations and Finite Difference Method (the Transactions of the Japan Society of Mechanical Engineers) : Papers published in the Bull
- Gas Exchange Process of Four-Stroke Spark Ignition Engines under the Condition of Partial Load, at Medium or Low Speed (2nd Report)
- Gas Exchange Process of Four-Stroke Spark Ignition Engines under the Condition of Partial Load at Medium or Low Speed : 4th Report
- Gas Exchange Process of Four-Stroke Spark Ignition Engines Under the Condition of Partial Load, a Medium or Low Speed (3rd Report)