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title: international symposium on air breathing engine

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    Investigation of the Combustion Characteristics with Focus on Partially Premixed Combustion in a Heavy Duty Engine

    Johansson, Bengt / Ekholm, Kent / Lewander, Magnus et al. | SAE Technical Papers | 2008
    studied in a six cylinder heavy duty engine where the Start of Injection (SOI) was swept from early to late injection over a wide range of EGR ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: HCCI engines

    On Maximizing Argon Engines' Performance via Subzero Intake Temperatures in HCCI Mode at High Compression Ratios

    Mohammed, Abdulrahman / Elkhazraji, Ali / Johansson, Bengt et al. | SAE Technical Papers | 2020
    . Although the values of the thermodynamic efficiency at high compression ratios did not meet the expectations based on the ideal Otto cycle due to ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: HCCI engines , Air / fuel ratio

    Effect of Pre-Chamber Volume and Nozzle Diameter on Pre-Chamber Ignition in Heavy Duty Natural Gas Engines

    Shah, Ashish / Johansson, Bengt / Tunestal, Per | SAE Technical Papers | 2015
    strategy is a very effective means of extending the lean limit of combustion with excess air in heavy duty natural gas engines in order to improve ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: Gas engines

    A Numerical Study on the Ignition of Lean CH4/Air Mixture by a Pre-Chamber-Initiated Turbulent Jet

    Johansson, Bengt / Cenker, Emre / Im, Hong G. et al. | SAE Technical Papers | 2020
    hot gas jets initiated by a passive narrow throated pre-chamber in a heavy-duty engine was studied computationally. A twelve-hole pre-chamber ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: Engines

    The Effect of Displacement on Air-Diluted Multi-Cylinder HCCI Engine Performance

    Johansson, Bengt / Wilhelmsson, Carl / Hyvönen, Jari | SAE Technical Papers | 2006
    truck engine. All engines are port fuel injected and run with a RON91/MON82 gasoline. Combustion phasing is mainly controlled with inlet air ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: HCCI engines , Spark ignition engines

    Combustion Chambers for Natural Gas SI Engines Part 2: Combustion and Emissions

    Johansson, Bengt / Olsson, Krister | SAE Technical Papers | 1995
    natural gas SI engine.Ten different geometries were tried on a converted Volvo TD102 engine. For the different combustion chambers emissions and ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: Lean burn engines

    Investigation of Performance and Emission Characteristics of a Heavy Duty Natural Gas Engine Operated with Pre-Chamber Spark Plug and Dilution with Excess Air and EGR

    Shah, Ashish / Johansson, Bengt / Tunestal, Per | SAE Technical Papers | 2012
    dilution (limited by combustion stability index, Coefficient of Variation (COV) of Gross Indicated Mean Effective Pressure (IMEPg)) with excess air ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: Gas engines

    Experimental and Simulated Results Detailing the Sensitivity of Natural Gas HCCI Engines to Fuel Composition

    Johansson, Bengt / Assanis, Dennis N. / Maus, Fabian et al. | SAE Technical Papers | 2001
    Natural gas quality, in terms of the volume fraction of higher hydrocarbons, strongly affects the auto-ignition characteristics of the air ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: HCCI engines

    Effects of Injection Timing on Fluid Flow Characteristics of Partially Premixed Combustion Based on High-Speed Particle Image Velocimetry

    Somers, Bart / Johansson, Bengt / Wang, Hua et al. | SAE Technical Papers | 2017
    Partially Premixed Combustion (PPC) is a promising combustion concept ,based on judicious tuning of the charge stratification, to meet the ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: HCCI engines

    Comparison of Negative Valve Overlap (NVO) and Rebreathing Valve Strategies on a Gasoline PPC Engine at Low Load and Idle Operating Conditions

    Johansson, Bengt / Borgqvist, Patrick / Tunestal, Per | SAE Technical Papers | 2013
    engine in PPC mode with high octane number fuels has the advantage of a longer premix period of fuel and air which reduces soot emissions. The ...
    Verlag: Society of Automotive Engineers , SAE International

    Effect of Pre-Chamber Enrichment on Lean Burn Pre-Chamber Spark Ignition Combustion Concept with a Narrow-Throat Geometry

    Johansson, Bengt / Cenker, Emre / Singh, Eshan et al. | SAE Technical Papers | 2020
    maintaining short combustion durations. In this study, experiments were conducted on a heavy-duty engine at lean conditions at mid to low load. Two ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: Lean burn engines , Engines , Spark ignition engines

    Effects of Geometry on Passive Pre-Chamber Combustion Characteristics

    Johansson, Bengt / Cenker, Emre / Im, Hong G. et al. | SAE Technical Papers | 2020
    Towards a fundamental understanding of the ignition characteristics of pre-chamber (PC) combustion engines, computational fluid dynamics ...
    Verlag: Society of Automotive Engineers , SAE International

    The Effect of Intake Temperature on HCCI Operation Using Negative Valve Overlap

    Johansson, Bengt / Ström, Hans / Persson, Håkan et al. | SAE Technical Papers | 2004
    unchanged from the automotive application. A heat exchanger is utilized to heat or cool the intake air, not as a means of combustion control but in ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: HCCI engines , Spark ignition engines

    Optical Study on the Fuel Spray Characteristics of the Four-Consecutive-Injections Strategy Used in High-Pressure Isobaric Combustion

    Al Ramadan, Abdullah / Johansson, Bengt / Magnotti, Gaetano et al. | SAE Technical Papers | 2020
    thermal efficiency than the conventional diesel engine. Experiments on the metal engines showed that four consecutive injections delivered by a ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: Engines

    Combustion Chamber Geometry Effects on the Performance of an Ethanol Fueled HCCI Engine

    Vressner, Andreas / Johansson, Bengt / Egnell, Rolf | SAE Technical Papers | 2008
    engine loads. Also an investigation on the differences between the optical engine and the all-metal engine was performed. The engine used was a ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: HCCI engines

    Double Compression Expansion Engine Concepts: A Path to High Efficiency

    Andersson, Arne / Johansson, Bengt / Tuner, Martin et al. | SAE Technical Papers | 2015
    efficiency is reached with a very diluted air/fuel-mixture and high load resulting in high peak cylinder pressure (PCP). On the other hand, high ...
    Verlag: Society of Automotive Engineers , SAE International

    Pressure Sensitivity of HCCI Auto-Ignition Temperature for Primary Reference Fuels

    Johansson, Bengt / Truedsson, Ida / Tuner, Martin et al. | SAE Technical Papers | 2012
    determining auto-ignition in HCCI combustion. The current research focuses on creating an HCCI fuel index suitable for comparing different fuels for ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: HCCI engines

    Study on Combustion Chamber Geometry Effects in an HCCI Engine Using High-Speed Cycle-Resolved Chemiluminescence Imaging

    Hultqvist, Anders / Vressner, Andreas / Johansson, Bengt | SAE Technical Papers | 2007
    used for the experiments. An engine speed of 1200 rpm was applied throughout the tests. The effect of air/fuel ratio and combustion phasing was ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: HCCI engines

    Study of the Early Flame Development in a Spark-Ignited Lean Burn Four-Stroke Large Bore Gas Engine by Fuel Tracer PLIF

    Johansson, Bengt / Hyvonen, Jari / Duong, Jeudi et al. | SAE Technical Papers | 2014
    are also supported by CFD modeling performed on the Wärtsilä 34SG combustion system. Similar to the air entrainment in a diesel spray, the ...
    Verlag: Society of Automotive Engineers , SAE International
    Schlagwörter: Gas engines , Lean burn engines , Spark ignition engines

    Vehicle Driving Cycle Simulation of a Pneumatic Hybrid Bus Based on Experimental Engine Measurements

    Johansson, Bengt / Tunestal, Per / Trajkovic, Sasa | SAE Technical Papers | 2010
    deceleration and during vehicle acceleration the engine can be operated as a 2-stroke air-motor driven by the previously stored pressurized air. There ...
    Verlag: Society of Automotive Engineers , SAE International

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