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turbocharged
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  turbocharged
In particular the shift to diesel engines and lean, turbocharged SI-engines will require a continuous development of aftertreatment systems, primarily for Particulates and NOx.
      
The paper describes a neural approach for modelling and control of a turbocharged Diesel engine.
      
This high-oleic soybean oil was converted to biodiesel and run in a John Deere 4045T 4.5-L four-stroke, four-cylinder, turbocharged direct-injection diesel engine.
      
2 diesel fuel were studied at several steady-state operating conditions in a four-cylinder turbocharged diesel engine.
      
Fuel specifications of this fuel are given, and values for gaseous (HC, CO, NOx) and particulate emissions, measured with a vehicle powered by a turbocharged, direct injection diesel engine, are shown.
      
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This paper presents a discription of a mathematical simulation of the turbocharged two-stroke diesel engine. The differential equations of the process are derived and the mathematical models of all thermodynamic systems are given. The burning rate is calculated according to the data of the heat release obtained from the pressure-time diagrams with the Lagrange interpolation formula. The instantaneous heat transfer, in cylinder is calculated by the empirical correlation given by Woschni. In the displacement...

This paper presents a discription of a mathematical simulation of the turbocharged two-stroke diesel engine. The differential equations of the process are derived and the mathematical models of all thermodynamic systems are given. The burning rate is calculated according to the data of the heat release obtained from the pressure-time diagrams with the Lagrange interpolation formula. The instantaneous heat transfer, in cylinder is calculated by the empirical correlation given by Woschni. In the displacement scavenging model the effect of the short circuiting is considered. The process occuring in the exhaust manifold is computed by the model for filling and emptying process. The turbocharger turbine is analyzed on a quasi-steady basis with given mass flow-expansion ratio characteristics and efficiency-velocity ratio curves. Steady flow is assumed and experimental performance is used to model the compressor. For the solution of differential equations on digital computer, the predictor-corrector method is combined with Wegstein method.

本文结合二冲程废气涡轮增压柴油机建立了对柴油机工作过程进行数学模拟的微分方程式,确定了各热力系统的数学模型:缸内的燃烧率是利用实测的示功图算出的放热率用插值法进行计算的。缸内的瞬时传热率计算采用了G.Woschni提出的经验公式和数据。扫气过程采用了分层扫气模型并考虑了短路的影响。排气管内的过程是用容积法计算的。增压器的配合运行是利用特性曲线在准稳定的基础上用插值法进行计算的。在数值计算中采用了PCM法(预校法)和Wegstien法结合使用的方法。

This paper presents the calculating method of a pulse converter. In the case of lack of its experimental data, the effect of pulse converter on pressure waves in the exhaust manifold may be analysed by means of the physical model and calculating method as described.In addition, some problems concerning the performance of pulse converter in turbocharging system are briefly discussed. As far as turbocharged model 8300 diesel engine is concerned, it is found that the calculating results agree well with the...

This paper presents the calculating method of a pulse converter. In the case of lack of its experimental data, the effect of pulse converter on pressure waves in the exhaust manifold may be analysed by means of the physical model and calculating method as described.In addition, some problems concerning the performance of pulse converter in turbocharging system are briefly discussed. As far as turbocharged model 8300 diesel engine is concerned, it is found that the calculating results agree well with the pressure wave patterns and the data obtained by measurement.

本文介绍一种脉冲转换器的理论计算方法。在缺少脉冲转换器试验数据的情况下,采用本文建议的物理模型与计算方法,可以分析脉冲转换器对排气管系压力波的影响。此外,对有关脉冲转换增压系统性能的若干问题作了简要的讨论。计算结果经与8300型柴油机实测数据及压力波图形对比,吻合良好。

On the basis of the bench test of 6135 Q-1 turbocharged diesel engine at the altitude of 3810 metres in 1077, the running characteristics and the approches of adjustment of that turbocharged diesel as well as its experimental results are to be reviewed. The other problems related to any turbocharged engine operated at altitude are discussed thereupon at the same time.

本文在1977年海拔3810m进行的6136Q—1型柴油机高原增压台架试验的基础上,就高原增压柴油机的运行特点及其调整作了研究,介绍了试验所取得的结果,同时就高原增压柴油机有关的其它问题进行了探讨。

 
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