The influence of fuel supply angle on the combustion and emissions of methanol/diesel engine

2011 ◽  
Author(s):  
Liu Yazhe ◽  
Wu Jian ◽  
Xu Bin ◽  
Ma Zhihao
Keyword(s):  
Diesel Engine ◽  
Fuel Supply ◽  
Supply Angle

The Tentative Study on Exhausting Performance of Diesel Engine Burning Ethanol-Diesel Mixture

2013 ◽  
Vol 448-453 ◽  
pp. 3532-3536
Author(s):  
Yan Hua Jia ◽  
Gui Fu Wu ◽  
Wen Wu Fan ◽  
Ying Shan Zhen ◽  
Yi Lin Wang
Keyword(s):  
Diesel Engine ◽  
Supply System ◽  
Nox Emission ◽  
Fuel Supply ◽  
Fuel Supply System

Advancements were made to the fuel supply system on the basis of the original X195 Diesel Engine correlating its structure features, and we designed exhausting performance experiments on the injection diesel engine burning the mixture of ethanol and diesel. The results show that: the exhaust smoke and the NOx emission could be significantly reduced by ameliorating the engine.

scholarly journals Research On Fuel Compensation Control of High-pressure Common-Rail Diesel Engine Based On Crankshaft Segment Signals

2021 ◽  
Author(s):  
Yuhua Wang ◽  
Guiyong Wang ◽  
Guozhong Yao ◽  
Lizhong Shen ◽  
Shuchao He
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
Fuel Injection ◽  
Common Rail ◽  
Engine Fuel ◽  
Quantization Method ◽  
Software Module ◽  
Fuel Supply ◽  
Compensation Control ◽  
High Pressure Common Rail

Abstract This paper studies the high-pressure common-rail diesel engine fuel supply compensation based on crankshaft fragment signals in order to improve the uneven phenomenon of diesel engine fuel supply and realize high efficiency and low pollution combustion. The experiments were conducted on a diesel engine with the model of YN30CR. Based on the characteristics of crankshaft fragment signals, the proportional integral (PI) control algorithm was used to quantify the engine working nonuniformity and extract the missing degree of fuel injection. The quantization method of each cylinder working uniformity and algorithm of fuel compensation control (FOC) based on crankshaft fragment signal were established, and the control strategy of working uniformity at different operating conditions was put forward. According to the principle of FOC control, a FOC control software module for ECU was designed. The FOC software module was simulated on ASCET platform. The results show that: Compared with the traditional quantization method, the oil compensation information extracted from crankshaft fragment signal has stronger anti-interference and more accurate parameters. FOC algorithm can accurately reflect the engine's working nonuniformity, and the control of the nonuniformity is reasonable. The compensation fuel amount calculated by FOC is high consistency with the fuel supply state of each cylinder set by experiment, which meets the requirement of accurate fuel injection control of common-rail diesel engine.

scholarly journals Optimization of parameters for diesel shaft speed control system

2019 ◽  
Vol 140 ◽  
pp. 10003
Author(s):  
Vladimir Markov ◽  
Victor Furman ◽  
Sergey Plakhov ◽  
Bowen Sa
Keyword(s):  
High Pressure ◽  
Control System ◽  
Diesel Engine ◽  
High Speed ◽  
Experimental Studies ◽  
Pi Control ◽  
Control Law ◽  
Acceleration Process ◽  
Natural Oscillations ◽  
Fuel Supply

This work presents a fuel supply electronic control system (model ESUVT.01) developed by Dizelavtomatika (Saratov) for the D50 (6 CHN 31.8/33) locomotive diesel engine manufactured by Penzadieselmash. In this system, the fuel supply process is controlled by a high-speed electro-hydraulic valve installed in the high-pressure line of the fuel system. A set of electrically controlled high pressure fuel pumps (mode 4ETN.03) with electro-hydraulic valves for the diesel was manufactured. This system can also control the engine speed. It was noted that the best quality indicators of the speed regulating process are provided by the PID control law. It was shown that for a diesel with high inertia, it is advisable to use the PI control law. Experimental studies were conducted to assess the influence of structure and parameters of this control system on the dynamic qualities of this diesel engine. The object of bench testing was a 1-PDG4D-type diesel-generator from the above-mentioned diesel engine and MPT-84/39 traction generator. The dependences of the duration of the transient process, the overspeed and the period of natural oscillations of the regulated parameter on the PI controller parameters were obtained. The necessity of optimizing the coefficients of proportional (P) and integral (I) components of the PI control law was confirmed. A method for optimizing the coefficients of proportional and integral components of the PI control law was proposed. The optimized coefficients for the transient acceleration process of the diesel engine according to the locomotive characteristic were obtained.

Study of a device for implementing diesel engine fuel supply skipping

2020 ◽  
Vol 1 (1) ◽  
pp. 24-29
Author(s):  
D.D. Harisov ◽  
◽  
E.M. Gajsin ◽  
Keyword(s):  
Diesel Engine ◽  
Engine Fuel ◽  
Fuel Supply

Effects of Fuel Supply Advance Angle on Engine Thermal Efficiency and Emission Performance Fueled with Bio-Diesel

2013 ◽  
Vol 724-725 ◽  
pp. 1122-1126
Author(s):  
Qi Zeng
Keyword(s):  
Diesel Engine ◽  
Thermal Efficiency ◽  
Emission Characteristics ◽  
Nox Emissions ◽  
Variation Trend ◽  
Emission Performance ◽  
Single Cylinder ◽  
Fuel Supply ◽  
Comparison Test ◽  
Complex Variation

Having comparison test research of economy and emission characteristics of biodiesel under different fuel supply advance angle on L16-type single cylinder diesel engine. The results show that the diesel engine has good effective thermal efficiency and economy with the fuel supply advance angle at 17°CA-BTDC; CO emissions basically increases with the decrease of fuel supply advance angle; NOx emissions increases with the fuel supply advance angle; THC emissions show not obvious and complex variation trend with the change of fuel supply advance angle, but the magnitude of the overall change is not obvious; with the decrease of fuel supply advance angle, Soot emissions increase first and then decreases.

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