Author: M Yoshida
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Effect of the Form of the Top Land of the Piston on Hydrocarbon Emissions of a Spark-ignition Engine
Author: M Yoshida
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
The Effect of Gap Geometry at the Top Land of the Piston on Hydrocarbon Emissions in a Spark-ignition Engine
Author: M. Yoshida
Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Emission Control and Fuel Economy
Author: John H Johnson
Publisher: SAE International
ISBN: 1468602098
Category : Technology & Engineering
Languages : en
Pages : 700
Book Description
Emission and fuel economy regulations and standards are compelling manufacturers to build ultra-low emission vehicles. As a result, engineers must develop spark-ignition engines with integrated emission control systems that use reformulated low-sulfur fuel. Emission Control and Fuel Economy for Port and Direct Injected SI Engines is a collection of SAE technical papers that covers the fundamentals of gasoline direct injection (DI) engine emissions and fuel economy, design variable effects on HC emissions, and advanced emission control technology and modeling approaches. All papers contained in this book were selected by an accomplished expert as the best in the field; reprinted in their entirety, they present a pathway to integrated emission control systems that meet 2004-2009 EPA standards for light-duty vehicles.
Publisher: SAE International
ISBN: 1468602098
Category : Technology & Engineering
Languages : en
Pages : 700
Book Description
Emission and fuel economy regulations and standards are compelling manufacturers to build ultra-low emission vehicles. As a result, engineers must develop spark-ignition engines with integrated emission control systems that use reformulated low-sulfur fuel. Emission Control and Fuel Economy for Port and Direct Injected SI Engines is a collection of SAE technical papers that covers the fundamentals of gasoline direct injection (DI) engine emissions and fuel economy, design variable effects on HC emissions, and advanced emission control technology and modeling approaches. All papers contained in this book were selected by an accomplished expert as the best in the field; reprinted in their entirety, they present a pathway to integrated emission control systems that meet 2004-2009 EPA standards for light-duty vehicles.
Flow in the Piston-cylinder-ring Crevices of a Spark-ignition Engine
Author: M. Namazian
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 26
Book Description
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 26
Book Description
SI Engine Modeling
Author: Society of Automotive Engineers
Publisher: SAE International
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 378
Book Description
Publisher: SAE International
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 378
Book Description
The Effects of Knock on the Hydrocarbon Emissions of a Spark-ignition Engine
Author: Henry Peter Davis
Publisher:
ISBN:
Category : Hydrocarbons
Languages : en
Pages : 222
Book Description
Publisher:
ISBN:
Category : Hydrocarbons
Languages : en
Pages : 222
Book Description
Effect of Fuel Composition on Exhaust Emissions from a Spark-ignition Engine
Author: Ralph David Fleming
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 76
Book Description
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 76
Book Description
The Effect of Piston Design on Hydrocarbon Emissions in a Spark Ignited Engine
Author: M. Willcock
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Combustion Chamber Deposit Effects on Hydrocarbon Emissions from a Spark-ignition Engine
Author: Haissam Ali Haidar
Publisher:
ISBN:
Category :
Languages : en
Pages : 135
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 135
Book Description
Effect of In-cylinder Liquid Fuel Films on Engine-out Unburned Hydrocarbon Emissions for SI Engines
Author: Vincent Stanley Costanzo
Publisher:
ISBN:
Category :
Languages : en
Pages : 272
Book Description
Nearly all of the hydrocarbon emissions from a modern gasoline-fueled vehicle occur when the engine is first started. One important contributing factor to this is the fact that, during this time, temperatures throughout the engine are low - below the point at which all of the components of the gasoline can readily vaporize. Consequently, any fuel that enters the combustion chamber in liquid form can escape combustion and subsequently be exhausted as hydrocarbon emissions. An experimental study was performed in a firing engine in which liquid gasoline films were established at various locations in the combustion chamber and the resulting impact on hydrocarbon emissions was assessed. Unique about this setup was that it combined direct visual observation of the liquid fuel films, measurements of the temperatures these films were subjected to, and the determination from gas analyzers of burned and unburned fuel quantities - all with cycle-level or better resolution. An increase in the hydrocarbon emissions was observed with liquid gasoline films present in the combustion chamber. This increase depended upon both the location of the film and the temperature of that location, and correlated with estimates of the mass of fuel in the film. The largest impact was observed when the head near the exhaust valve was wetted; the smallest impact was observed when the piston on the intake side of the engine was wetted. In general, as engine temperatures increased the hydrocarbon emissions due to the liquid fuel films decreased. It was also identified when, in the exhaust event, fuel from the films was actually exhausted. The effect of the location of the liquid fuel film can best be understood in terms of the time before flame arrival at that location, the local flow over the film, and the extent to which the overall flow in the combustion chamber carries fuel from the film to the exhaust valve. The primary effect of wall temperature is to affect the amount of vaporization from the film: as temperature increases more vaporization occurs before flame arrival, resulting in less fuel that can vaporize post-flame as unburned fuel emissions.
Publisher:
ISBN:
Category :
Languages : en
Pages : 272
Book Description
Nearly all of the hydrocarbon emissions from a modern gasoline-fueled vehicle occur when the engine is first started. One important contributing factor to this is the fact that, during this time, temperatures throughout the engine are low - below the point at which all of the components of the gasoline can readily vaporize. Consequently, any fuel that enters the combustion chamber in liquid form can escape combustion and subsequently be exhausted as hydrocarbon emissions. An experimental study was performed in a firing engine in which liquid gasoline films were established at various locations in the combustion chamber and the resulting impact on hydrocarbon emissions was assessed. Unique about this setup was that it combined direct visual observation of the liquid fuel films, measurements of the temperatures these films were subjected to, and the determination from gas analyzers of burned and unburned fuel quantities - all with cycle-level or better resolution. An increase in the hydrocarbon emissions was observed with liquid gasoline films present in the combustion chamber. This increase depended upon both the location of the film and the temperature of that location, and correlated with estimates of the mass of fuel in the film. The largest impact was observed when the head near the exhaust valve was wetted; the smallest impact was observed when the piston on the intake side of the engine was wetted. In general, as engine temperatures increased the hydrocarbon emissions due to the liquid fuel films decreased. It was also identified when, in the exhaust event, fuel from the films was actually exhausted. The effect of the location of the liquid fuel film can best be understood in terms of the time before flame arrival at that location, the local flow over the film, and the extent to which the overall flow in the combustion chamber carries fuel from the film to the exhaust valve. The primary effect of wall temperature is to affect the amount of vaporization from the film: as temperature increases more vaporization occurs before flame arrival, resulting in less fuel that can vaporize post-flame as unburned fuel emissions.