SAE 2003-04-0077 Potential of a flexible high-pressure fuel injection system for heavy-duty diesel engines PDF Download
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Author: B. Mahr
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Heavy-duty diesel engines are in conflict between the goals of emission reduction and optimization of fuel consumption. On the basis of test results measured with common-rail-based development tools the potential of the FIE to support solving the emission/fuel-trade-off is described. Besides the question of pressure- or needle-life-controlled injection, the measure ""exhaust gas recirculation' (EGR) is also considered. The influence of high injection pressure, rate shaping of main injection and multiple injections on engine emissions are discussed. Furthermore the importance of advanced control strategies to achieve the best emission results in steady state and transient engine conditions are shown exemplary. Finally, scenarios and engine technology to meet future emission limits are pointed out.
Author: B. Mahr
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Heavy-duty diesel engines are in conflict between the goals of emission reduction and optimization of fuel consumption. On the basis of test results measured with common-rail-based development tools the potential of the FIE to support solving the emission/fuel-trade-off is described. Besides the question of pressure- or needle-life-controlled injection, the measure ""exhaust gas recirculation' (EGR) is also considered. The influence of high injection pressure, rate shaping of main injection and multiple injections on engine emissions are discussed. Furthermore the importance of advanced control strategies to achieve the best emission results in steady state and transient engine conditions are shown exemplary. Finally, scenarios and engine technology to meet future emission limits are pointed out.
Author: B. Mahr
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Heavy-duty diesel engines are in conflict between the goals of emission reduction and optimization of fuel consumption. To fulfill future more stringent exhaust gas limits further developments on diesel engine technology are necessary. The diesel injection system assists this development and becomes the decisive factor to reach the emission targets. In the last 30 years a trend to high-pressure fuel injection systems with an increase of maximum injection pressure from 800 up to 2000 bar is visible. In future very flexible high-pressure fuel injection systems are necessary with multiple injection and rate-shaping capabilities and a maximum injection pressure beyond 2000 bar. Very important is a high efficiency of the fuel injection system itself to reach low fuel consumption. New product engineering like new nozzle design (k-factor, vario nozzle,..) or new developed actuators are key factors for the fuel injection development. With a flexible diesel injection system in each point of the engine map the optimum rate shaping, injection timing and multiple injection are possible to get the best compromise between emission trade off and fuel consumption. For example with exhaust gas recirculation (EGR) a rectangular type main injection with high injection pressures at full load is recommended. On the other hand, without EGR in this point of the engine map a boot or ramp shape injection leads to the best emission results at constant or improved fuel consumption. With a coupled post injection the soot emission could be reduced. The late post injection is assisting the exhaust gas aftertreatment systems. The regeneration of the diesel particulate filter is for example because of too low exhaust gas temperature without the support of the injection system not under all circumstances possible. The exhaust gas temperature management by late post injection is a measure to improve the efficiency of catalyst systems at low exhaust gas temperatures. Very important in the future is the capability of the electronic control unit (ECU) of the diesel injection system to control air management, exhaust gas emission management, tolerance reduction, diagnosis, vehicle functions and combustion process by the fuel injection system.
Author: PEP (Professional Engineering Publishers)
Publisher: Wiley
ISBN: 9781860583995
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Fuel Injection Systems addresses key issues in fuel delivery and associated technologies which are evolving faster than ever. The rapid technological change has reduced product life cycles resulting in rapid evolution of design and development methods to enable timely delivery of increasingly complex technology. This is vital as the demands on engines are increasingly stringent, especially in the field of emissions, new fuel injection systems are being developed to meet these challenges, not only in passenger cars but also for heavy duty as well as large engine applications. This volume brings together international contributions from the leading experts in industry and the latest research from academia to provide a comprehensive update to all those working in design, development, and manufacturing of fuel injection systems. Contents include: Emission reduction with advanced two-actuator EUI for heavy-duty diesel engines Investigation of a two valve electronically controlled unit injector on a Euro IV heavy duty diesel engine using design of experiment methods Characterization of in-cylinder fuel distribution from an air-assisted fuel injection system using advanced laser diagnostics High contact stress applications of a silicon nitride in modern diesel engines The use of the HLMI (hydraulic leak measurement unit) Komatsu STA 6DI40 water emulsified fuel engine Timely control of diesel combustion using water injection
Author: Guangyao Ouyang
Publisher: John Wiley & Sons
ISBN: 1119107245
Category : Technology & Engineering
Languages : en
Pages : 376
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Book Description
A wide-ranging and practical handbook that offers comprehensive treatment of high-pressure common rail technology for students and professionals In this volume, Dr. Ouyang and his colleagues answer the need for a comprehensive examination of high-pressure common rail systems for electronic fuel injection technology, a crucial element in the optimization of diesel engine efficiency and emissions. The text begins with an overview of common rail systems today, including a look back at their progress since the 1970s and an examination of recent advances in the field. It then provides a thorough grounding in the design and assembly of common rail systems with an emphasis on key aspects of their design and assembly as well as notable technological innovations. This includes discussion of advancements in dual pressure common rail systems and the increasingly influential role of Electronic Control Unit (ECU) technology in fuel injector systems. The authors conclude with a look towards the development of a new type of common rail system. Throughout the volume, concepts are illustrated using extensive research, experimental studies and simulations. Topics covered include: Comprehensive detailing of common rail system elements, elementary enough for newcomers and thorough enough to act as a useful reference for professionals Basic and simulation models of common rail systems, including extensive instruction on performing simulations and analyzing key performance parameters Examination of the design and testing of next-generation twin common rail systems, including applications for marine diesel engines Discussion of current trends in industry research as well as areas requiring further study Common Rail Fuel Injection Technology is the ideal handbook for students and professionals working in advanced automotive engineering, particularly researchers and engineers focused on the design of internal combustion engines and advanced fuel injection technology. Wide-ranging research and ample examples of practical applications will make this a valuable resource both in education and private industry.
Author: PEP (Professional Engineering Publishers)
Publisher: John Wiley and Sons
ISBN: 9781860583995
Category : Technology & Engineering
Languages : en
Pages : 276
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Book Description
Fuel Injection Systems addresses key issues in fuel delivery and associated technologies which are evolving faster than ever. The rapid technological change has reduced product life cycles resulting in rapid evolution of design and development methods to enable timely delivery of increasingly complex technology. This is vital as the demands on engines are increasingly stringent, especially in the field of emissions, new fuel injection systems are being developed to meet these challenges, not only in passenger cars but also for heavy duty as well as large engine applications. This volume brings together international contributions from the leading experts in industry and the latest research from academia to provide a comprehensive update to all those working in design, development, and manufacturing of fuel injection systems. Contents include: Emission reduction with advanced two-actuator EUI for heavy-duty diesel engines Investigation of a two valve electronically controlled unit injector on a Euro IV heavy duty diesel engine using design of experiment methods Characterization of in-cylinder fuel distribution from an air-assisted fuel injection system using advanced laser diagnostics High contact stress applications of a silicon nitride in modern diesel engines The use of the HLMI (hydraulic leak measurement unit) Komatsu STA 6DI40 water emulsified fuel engine Timely control of diesel combustion using water injection
Author: David D.. Wickman
Publisher:
ISBN:
Category :
Languages : en
Pages : 390
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Book Description
Author: Diesel Fuel Injection Equipment Standards Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This SAE Standard establishes a vocabulary and definitions relating to the components used in fuel injection systems for compression ignition (diesel) engines. Definitions are separated into six sections by topic as follows: Section 3 Fuel Injection Pumps; Section 4 Fuel Injectors; Section 5 Unit Injectors; Section 6 Governors; Section 7 Timing Devices; Section 8 High Pressure Pipes and Connections.
Author: Cornel C Stan
Publisher: SAE International
ISBN: 0768030498
Category : Technology & Engineering
Languages : en
Pages : 126
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Book Description
Direct Injection Systems: The Next Decade in Engine Technology explores potentials that have been recognized and successfully applied, including fuel direct injection, fully variable valve control, downsizing, operation within hybrid scenarios, and use of alternative fuels.
Author: Greg Banish
Publisher: CarTech Inc
ISBN: 1932494901
Category : Technology & Engineering
Languages : en
Pages : 130
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Book Description
Greg Banish takes his best-selling title, Engine Management: Advanced Tuning, one step further as he goes in-depth on the combustion basics of fuel injection as well as benefits and limitations of standalone. Learn useful formulas, VE equation and airflow estimation, and more. Also covered are setups and calibration, creating VE tables, creating timing maps, auxiliary output controls, start to finish calibration examples with screen shots to document the process. Useful appendixes include glossary and a special resources guide with standalone manufacturers and test equipment manufacturers
Author: John J. McFadden
Publisher:
ISBN:
Category : Vehicles
Languages : en
Pages : 40
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Book Description
