Residual Gas Mixing in Engines

Residual Gas Mixing in Engines PDF Author: Andrew G. Bright
Publisher:
ISBN:
Category :
Languages : en
Pages : 340

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Residual Gas Mixing in Engines

Residual Gas Mixing in Engines PDF Author: Andrew G. Bright
Publisher:
ISBN:
Category :
Languages : en
Pages : 340

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Book Description


Fuel Air Residual Gas Mixing in the Intake Ports of Multi-point Port Fuel-injected Engines

Fuel Air Residual Gas Mixing in the Intake Ports of Multi-point Port Fuel-injected Engines PDF Author: Chun-On Cheng
Publisher:
ISBN:
Category :
Languages : en
Pages : 306

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Experimental Investigations on Particle Number Emissions from GDI Engines

Experimental Investigations on Particle Number Emissions from GDI Engines PDF Author: Markus Bertsch
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832544038
Category : Technology & Engineering
Languages : en
Pages : 170

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Book Description
This thesis discusses experimental investigations to reduce particle number emissions from gasoline engines with direct injection. Measures on a single cylinder research engine with combined usage of a particle number measurement system, a particle size distribution measurement system as well as optical diagnostics and thermodynamic analysis enable an in-depth assessment of particle formation and oxidation. Therefore, numerous optical diagnostic techniques for spray visualisation (Mie-scattering, High-Speed PIV) and soot detection (High-Speed-Imaging, Fiber optical diagnostics) are deployed. Two injectors with different hydraulic flows but identical spray-targeting are characterised and compared by measurements in a pressurised chamber. The operation at higher engine load and low engine speed is in the focus of the experimental work at the engine test bench. Thereby, the low flow velocities in the combustion chamber, caused by the low engine speed, as well as the large amount of fuel injected are major challenges for the mixture formation process. A substantial part of the thesis thus focusses on the detailed analysis of the mixture formation process, which is consisting of fuel injection, interaction of the in-cylinder charge motion with the fuel injected and the fuel properties. Measures for the optimisation of the mixture formation process and the minimisation of the particle number emissions are analysed and evaluated. The charge motion is manipulated by the impression of a directed flow, the variation of the valve timings and valve open curve. The injection process is influenced by a reduction of the hydraulic flow of the injector and an increase of the injection pressure up to 50 MPa. The investigations show fundamental effects and potentials of different variation parameters concerning their emissions reduction potential at the exemplary operation at high engine load. Due to the simultaneous analysis of the in-cylinder charge motion and a thermodynamic analysis, the results can be transferred to different engines.

Combustion Engines Development

Combustion Engines Development PDF Author: Günter P. Merker
Publisher: Springer Science & Business Media
ISBN: 3642140947
Category : Technology & Engineering
Languages : en
Pages : 660

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Book Description
Combustion Engines Development nowadays is based on simulation, not only of the transient reaction of vehicles or of the complete driveshaft, but also of the highly unsteady processes in the carburation process and the combustion chamber of an engine. Different physical and chemical approaches are described to show the potentials and limits of the models used for simulation.

The Gas, Petrol, and Oil Engine: Thermodynamics of the gas, petrol, and oil engine, together with historical sketch

The Gas, Petrol, and Oil Engine: Thermodynamics of the gas, petrol, and oil engine, together with historical sketch PDF Author: Sir Dugald Clerk
Publisher:
ISBN:
Category : Internal combustion engines
Languages : en
Pages : 412

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Internal Combustion Engine in Theory and Practice, second edition, revised, Volume 2

Internal Combustion Engine in Theory and Practice, second edition, revised, Volume 2 PDF Author: Charles Fayette Taylor
Publisher: MIT Press
ISBN: 9780262700276
Category : Technology & Engineering
Languages : en
Pages : 804

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Book Description
This revised edition of Taylor's classic work on the internal-combustion engine incorporates changes and additions in engine design and control that have been brought on by the world petroleum crisis, the subsequent emphasis on fuel economy, and the legal restraints on air pollution. The fundamentals and the topical organization, however, remain the same. The analytic rather than merely descriptive treatment of actual engine cycles, the exhaustive studies of air capacity, heat flow, friction, and the effects of cylinder size, and the emphasis on application have been preserved. These are the basic qualities that have made Taylor's work indispensable to more than one generation of engineers and designers of internal-combustion engines, as well as to teachers and graduate students in the fields of power, internal-combustion engineering, and general machine design.

Transient Control of Gasoline Engines

Transient Control of Gasoline Engines PDF Author: Tielong Shen
Publisher: CRC Press
ISBN: 1466584270
Category : Computers
Languages : en
Pages : 317

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Book Description
Car electronics and digital processing technology have been used to improve the efficiency and performance of engines for decades, yet the main focus is still on static or pseudo-static mode, while the engines loaded in the road vehicles are not always operated at static mode. This book describes the behavior of engine dynamics operated at transient mode as a dynamical system, and uses advanced control theory to design a real-time control strategy that can be used to improve efficiency and emission performance.

Internal Combustion Engines

Internal Combustion Engines PDF Author: Allan T. Kirkpatrick
Publisher: John Wiley & Sons
ISBN: 1119454506
Category : Science
Languages : en
Pages : 660

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Book Description
A comprehensive resource covering the foundational thermal-fluid sciences and engineering analysis techniques used to design and develop internal combustion engines Internal Combustion Engines: Applied Thermosciences, Fourth Edition combines foundational thermal-fluid sciences with engineering analysis techniques for modeling and predicting the performance of internal combustion engines. This new 4th edition includes brand new material on: New engine technologies and concepts Effects of engine speed on performance and emissions Fluid mechanics of intake and exhaust flow in engines Turbocharger and supercharger performance analysis Chemical kinetic modeling, reaction mechanisms, and emissions Advanced combustion processes including low temperature combustion Piston, ring and journal bearing friction analysis The 4th Edition expands on the combined analytical and numerical approaches used successfully in previous editions. Students and engineers are provided with several new tools for applying the fundamental principles of thermodynamics, fluid mechanics, and heat transfer to internal combustion engines. Each chapter includes MATLAB programs and examples showing how to perform detailed engineering computations. The chapters also have an increased number of homework problems with which the reader can gauge their progress and retention. All the software is ‘open source’ so that readers can see in detail how computational analysis and the design of engines is performed. A companion website is also provided, offering access to the MATLAB computer programs.

Residual Gas Effects on Combustion in an Air-cooled Utility Engine

Residual Gas Effects on Combustion in an Air-cooled Utility Engine PDF Author: Brian Philip Albert
Publisher:
ISBN:
Category :
Languages : en
Pages : 296

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Estimating Residual Gas Fraction for SI Engines with Dual Independent Cam Systems

Estimating Residual Gas Fraction for SI Engines with Dual Independent Cam Systems PDF Author: Amandeep Singh
Publisher:
ISBN:
Category :
Languages : en
Pages : 150

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