Some Historical Steps in the Development of the Common Rail Injection System

2004 ◽  
Vol 74 (1) ◽  
pp. 89-107 ◽  
Author(s):  
Walter KNECHT
Keyword(s):  
Common Rail ◽  
Injection System ◽  
Common Rail Injection System ◽  
Common Rail Injection ◽  
The Common

Hybrid Modelling and Control of the Common Rail Injection System

2006 ◽  
pp. 79-92 ◽  
Author(s):  
Andrea Balluchi ◽  
Antonio Bicchi ◽  
Emanuele Mazzi ◽  
Alberto L. Sangiovanni Vincentelli ◽  
Gabriele Serra
Keyword(s):  
Common Rail ◽  
Injection System ◽  
Hybrid Modelling ◽  
Common Rail Injection System ◽  
Common Rail Injection ◽  
The Common ◽  
And Control

Dynamic Analysis of Diesel Engine Common Rail Injection System: Part II — Four-Cylinder Injection System

2001 ◽  
Author(s):  
M. Borghi ◽  
M. Milani ◽  
M. Piraccini
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
Dynamic Behavior ◽  
Common Rail ◽  
Injection System ◽  
Common Rail System ◽  
Common Rail Injection System ◽  
Rail System ◽  
Common Rail Injection ◽  
The Common

Abstract The paper is aimed at studying the overall dynamic behavior of the Common Rail Injection System actually used on a 4 cylinder industrial Diesel engine. Firstly, the paper introduces the main characteristics of a lumped and distributed parameters model of the high pressure branch of an actual Common Rail System, and the main hypotheses assumed to model it using a multi-port approach code for the analysis of the dynamic response of hydraulic systems submitted to fast transients. The model of the Common Rail System is then used to study its dynamic behavior when involved in the handling of the engine injection cycle for medium values of the crankshaft regime and for different pressure levels in the Rail. The analysis is performed applying to the injectors, to the pressure control valve and to the high-pressure pump the control strategies imposed by the Electronic Central Unit (ECU), as actually implemented into an industrial ECU for Diesel engine management. The model reliability and accuracy are evidenced through a numerical vs. experimental data comparison, mainly in term of rail pressure dynamic behavior. The analysis successively outlined in the paper allows to state how the hydraulic behavior of the Common Rail System interact with the electro-hydraulic injectors dynamics, and to determine the influence of this interaction on the total injected mass per cycle.

Hybrid modelling and control of the common rail injection system

2007 ◽  
Vol 80 (11) ◽  
pp. 1780-1795 ◽  
Author(s):  
A. Balluchi ◽  
A. Bicchi ◽  
E. Mazzi ◽  
A. Sangiovanni Vincentelli ◽  
G. Serra
Keyword(s):  
Common Rail ◽  
Injection System ◽  
Hybrid Modelling ◽  
Common Rail Injection System ◽  
Common Rail Injection ◽  
The Common ◽  
And Control

scholarly journals Electrotechnics, Occupational Safety and Transport

2020 ◽  
pp. 80-85
Author(s):  
П.С. Орлов ◽  
И.М. Соцкая
Keyword(s):  
Internal Combustion ◽  
Environmental Indicators ◽  
Common Rail ◽  
Hazardous Substances ◽  
Injection System ◽  
Electric Transport ◽  
Hydraulic Losses ◽  
Common Rail Injection System ◽  
Common Rail Injection ◽  
The Common

Зaгpязнeниe oкpужaющeй cpeды тoкcичными кoмпoнeнтaми oтрaбoтaвшиx гaзoв двигaтeлeй (выxлoпa) пpивoдит к cнижeнию уpoжaйнocти cельcкoхoзяйcтвeнныx кyльтyp, пpoдyктивнocти живoтнoвoдcтвa и pыбoлoвствa, a их пoвышeнныe кoнцeнтрaции нa рaбoчиx мecтaх и в кaбинaх aвтoмoбилeй, тpaктoрoв и caмoхoдныx мaшин пагубнo вoздeйcтвyют нa здoрoвьe paбoтaющиx и пpивoдят к cнижeнию пpoизвoдитeльнoсти тpyдa и yгpожают иx здopовью. Электротранспорт – эффективное решение экологической проблемы городов и один из самых перспективных видов транспорта на ближайшее время. Современный железнодорожный и городской электротранспорт имеет экономические преимущества. Электробусы оказались экономичнее обычных автобусов даже с учётом того, что они потребляют в два раза больше электроэнергии, чем обычные троллейбусы. Продолжается совершенствование и двигателя внутреннего сгорания (ДВС) в целях повышения его экономичности и экологичности. При сoздaнии нoвыx ДВС влияниe изнoсoв дeтaлeй топливной аппаратуры нa экoлoгичeскиe пoкaзaтeли нe учитывaются, пoэтoмy oдним из нaпрaвлeний к peшeнию прoблeмы cнижeния врeдныx выбpocoв дизeлeй являeтcя oптимизaция eё регулировочных пapaмeтpoв пpи пpoвeдeнии peмoнтнo-oбслyживaющиx paбoт. В peзyльтaтe исслeдoвaний рaзрaбoтaнa мeтoдикa рacчётa гидpaвличecкиx пoтepь в тoпливныx cиcтeмax. Нa ocнoвe пpoвeдённoгo aнaлизa гидpaвличecкиx пoтepь ycтaнoвлeнo, чтo дaнныe пoтepи минимaльны в aккyмyлятopнoй тoпливнoй cиcтeмe (ATC), наиболее близки к ней по величине потерь насос-форсунки. Сравнительный анализ рабочего процесса ATC и насос-форсунок показал, что обе топливные системы при полной нагрузке имеют практически одинаковые показатели по выбросам вредных веществ. Создание и апробация работы насос-форсунок, использующих электрогидравлический эффект, преобразующий электрическую энергию в механическую работу, совершаемую без промежуточных механических звеньев с высоким КПД, представляет большой интерес. Pollution of the environment with toxic components of engine exhaust gases (exhaust) leads to a decrease in crop yields, livestock farming and fishing productivity and their increased concentrations in the workplaces and cabins of vehicles, tractors and self-propelled machines are destructive of the workers’ health and lead to a decrease in labour productivity and threaten their health. Electric transport is an effective solution to the environmental problem of cities and one of the most promising means of transportation in the nearest future. Modern railway and urban electric transport has economic advantages. Electric buses turned out to be more economical than ordinary buses, even considering that they consume twice as much electricity as ordinary trolleybuses. The improvement of internal combustion engine (ICE) continues in order to increase its efficiency and environmental friendliness. When creating new internal combustion engines, the impact of wear of fuel equipment parts on environmental indicators is not taken into account, therefore, one of the ways to solve the problem of reducing polluting emissions of diesel engines is the optimization of its adjustment parameters during repair and maintenance work. As a result of the research a method for calculating hydraulic losses in fuel systems was developed. Based on the conducted analysis of hydraulic losses it was found that these losses are minimal in the common-rail injection system, the closest to it in terms of pump and injector unit losses. A comparative analysis of the working process of the common-rail injection system and pump and injector unit showed that both fuel systems at full load have almost the same indicators for hazardous substances emissions. It is of great interest to create and test the operation of pump and injector units using an electrohydraulic effect that converts electrical energy into mechanical work performed without intermediate mechanical links with high performance index.

Ion Current, Combustion and Emission Characteristics in an Automotive Common Rail Diesel Engine

2012 ◽  
Vol 134 (4) ◽  
Author(s):  
Naeim A. Henein ◽  
Tamer Badawy ◽  
Nilesh Rai ◽  
Walter Bryzik
Keyword(s):  
Diesel Engine ◽  
Diesel Engines ◽  
Direct Injection ◽  
Common Rail ◽  
Ion Current ◽  
Injection System ◽  
Feedback Signal ◽  
Common Rail Injection System ◽  
Common Rail Injection ◽  
No Emissions

Advanced electronically controlled diesel engines require a feedback signal to the ECU to adjust different operating parameters and meet demands for power, better fuel economy and low emissions. Different types of in-cylinder combustion sensors are being considered to produce this signal. This paper presents results of an experimental investigation on the characteristics of the ion current in an automotive diesel engine equipped with a common rail injection system. The engine is a 1.9 L, 4-cylinder, direct injection diesel engine. Experiments covered different engine loads and injection pressures. The relationships between the ion current, combustion parameters and engine out NO emissions and opacity are presented. The analysis of the experimental data identified possible sources of the ion current produced in diesel engines.

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