Real-time high-speed holographic interferometric study of a fuel injection system

1998 ◽  
Author(s):  
Tung H. Jeong ◽  
Louis M. Spoto
Keyword(s):  
Real Time ◽  
High Speed ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Interferometric Study

Fuel Injection System for a High Speed One Cylinder S.I.Engine

2001 ◽  
Author(s):  
Göran Almkvist ◽  
Tomas Karlsson ◽  
Styrbjörn Gren ◽  
Jörgen Bengtsson ◽  
Conny Andersson ◽  
...  
Keyword(s):  
High Speed ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System

Some Problems Connected with High-Speed Compression-Ignition Engine Development

1932 ◽  
Vol 36 (261) ◽  
pp. 733-787 ◽  
Author(s):  
C. B. Dicksee
Keyword(s):  
High Speed ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Engine Development

In this paper the author does not propose to deal with any particular form or type of engine or fuel-injection system, but to discuss some of the problems which are encountered when engaged on the development of a high-speed compression-ignition engine.The main problems to be solved consist in devising suitable means for utilising to the fullest possible extent the oxygen available within the cylinder and for avoiding the production of smoke and noise and, in so far as it is connected with combustion conditions, smell.

High Speed Fuel Injection System for 2-Stroke D.I. Gasoline Engine

1991 ◽  
Author(s):  
Michael M. Schechter ◽  
Eugene H. Jary ◽  
Michael B. Levin
Keyword(s):  
High Speed ◽  
Gasoline Engine ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System

scholarly journals Analysis on Dynamic Response Characteristics of High-Speed Solenoid Valve for Electronic Control Fuel Injection System

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Jianyu Zhang ◽  
Peng Liu ◽  
Liyun Fan ◽  
Yajie Deng
Keyword(s):  
Dynamic Response ◽  
High Speed ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Electronic Control ◽  
Response Characteristics ◽  
Valve Stem ◽  
Dynamic Response Characteristics ◽  
Residual Air

A 3D numerical simulation model of high-speed solenoid valve (HSV) for electronic control fuel injection system (ECFIS) has been developed. The model has been validated experimentally with acceptable maximum errors of 2% and 8.7% in closure response time and open response time, respectively. Effect of assembly parameters such as residual air gap, maximum lift of valve stem, mass of the moving parts, spring stiffness, and spring pretightening force on dynamic response characteristics of HSV has been analyzed in detail using the simulation model, and influence rules of various parameters on dynamic response characteristics have been established. Moreover, the correlation between interaction factors of main influence factors and dynamic response characteristics of HSV has also been analyzed. It is concluded that residual air gap, maximum lift of the valve stem, and spring pretightening force are the main influencing factors on dynamic response characteristics of HSV, and there are obvious interaction effects between them; when two or three of these main influencing factors are adjusted at the same time, the interaction effects should be considered.

scholarly journals Characteristics of pressure wave in common rail fuel injection system of high-speed direct injection diesel engines

2016 ◽  
Vol 8 (5) ◽  
pp. 168781401664824 ◽  
Author(s):  
Mohammad Reza Herfatmanesh ◽  
Zhijun Peng ◽  
Alexis Ihracska ◽  
Yuzhen Lin ◽  
Lipeng Lu ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Pressure Wave ◽  
High Speed ◽  
Fuel Injection ◽  
Direct Injection ◽  
Common Rail ◽  
Injection System ◽  
Fuel Injection System

The Theoretical Analysis and Optimization of the Fuel Injection Drive Circuit for Diesel Engine

2015 ◽  
Vol 742 ◽  
pp. 758-767
Author(s):  
Jian Guo Bu ◽  
Ming Zhou ◽  
Ge Dong ◽  
Guang Shuo Feng
Keyword(s):  
Energy Recovery ◽  
High Speed ◽  
Optimization Design ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Electronic Control ◽  
Drive Circuit ◽  
Off Time ◽  
Speed Response

In order to achieve different response indifferent moment of fuel Injection Solenoid, a driving mode of Peak&Hold is generally applied to electronic control fuel injection system of the diesel engine. The theoretical analysis of high speed response and duplicate supply drive circuit based on the energy recovery is made, and a theoretical guidance for optimization design is presented. According to an electronic unit pump developed by ourselves, the optimization design of drive circuit for the fuel injection system is done. The results showed that during the process of injection, the time of current of solenoid valve form 0 to 20A is 224, and the turn-off time is 120which is a little longer than that of the high speed circuit based on the avalanche. And the turn-off time is met the requirement of control precision. With many advantages, such as energy saving and heat reducing, the high speed response and duplicate supply drive circuit based on the energy recovery will become a good choice in electronic control fuel injection system.

scholarly journals MATHEMATICAL MODELLING OF INDICATIVE PROCESS PARAMETERS OF DUAL-FUEL ENGINES WITH CONVENTIONAL FUEL INJECTION SYSTEM

Transport ◽  
2020 ◽  
Vol 35 (1) ◽  
pp. 57-67 ◽  
Author(s):  
Sergejus Lebedevas ◽  
Saugirdas Pukalskas ◽  
Vygintas Daukšys
Keyword(s):  
High Speed ◽  
Fuel Injection ◽  
Injection System ◽  
Dual Fuel ◽  
Second Phase ◽  
Injection Timing ◽  
Fuel Injection System ◽  
One Dimensional ◽  
Motor Test ◽  
Conventional Fuel

Modern engine research uses multi-dimensional Mathematical Models (MMs) that are applicable to multi-fuel engines. However, their use involves the availability of detailed technical data on the design and characteristics of the engine, which is not always possible. The use of a one-dimensional MM is more expedient for the prediction of engine parameters, but their application for this purpose has not yet been sufficiently investigated. This publication presents the results of numerical studies evaluating the application of a one-dimensional MM with bi-phase Vibe combustion laws for dual-fuel (DF) Diesel (D) and Natural Gas (NG) engine power parameters. The motor test results of a high-speed 4ČN79.5/95.5 Diesel Engine (DE) with a conventional fuel injection system were used as adequacy criteria. The engines were operated with D100 and DF D20/NG80, in high- (HLM), medium- (MLM), and low- (LLM) load modes, and the angle of Diesel-fuel Injection Timing (DIT) was changed from −1 to −13 °CA in the Before Top Dead Center (BTDC) range. Modelling of the single-phase Vibe combustion law has limited applicability for efficient use only in HLM (with an error of 7%). In the MLM and LLM regimes, owing to non-compliance with real bi-phasic combustion with a strongly extended NG diffusive second phase, the modelling error is 50%. Individual MM matching in MLM and LLM in a DF D20/NG80 experiment detected a burn time increase from between 45 and 50 °CA, to 110 and 200 °CA, respectively. Limited use of the one-dimensional MM in the evaluation of DF engine performance has been identified. When comparing a one-dimensional MM with experimental data, a bi-phase law of heat release characteristic should be considered for better coincidence. In addition, individual MM matching with an experiment on each engine load mode ensured acceptable accuracy in testing and optimising the parameters of the indicator process, including DIT.

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