Author: Gilbert SammutPublisher:
ISBN:
Category : Energy consumption
Languages : en
Pages : 276
Book Description
Effects of Intake and Exhaust Geometry on the Breathing and Fuel Economy of a Single Cylinder SI Engine
Author: Gilbert SammutPublisher:
ISBN:
Category : Energy consumption
Languages : en
Pages : 276
Book Description
An Experimental and Computational Investigation of the Effect of Primary Intake Runner Geometry on the Performance of a Single Cylinder Engine
Author: Vincent Edward MariucciPublisher:
ISBN:
Category : Engines
Languages : en
Pages : 0
Book Description
The present study investigates the effects of various intake configurations on a firing single cylinder research engine. Eighteen different intake configurations were tested and modeled including a straight baseline case, tapers, varying inlet radii, bends, and S-bends. All of the intakes include a beilmouthed flange at the entrance and retain the same length to the beilmouth, transducer locations, and downstream diameter in an effort to identify the effect of the intake geometry only. An experimental study was conducted where each intake was instrumented with three pressure transducers. One of the pressure transducers was located near the entrance of the intake; the others were located downstream of the barrel throttle. Volumetric efficiency, brake power, and intake and exhaust pressures for each configuration are presented to determine the effect of each geometry on engine performance. Each intake configuration was modeled using a quasi-one-dimensional finite difference engine simulation code, MANDY. The volumetric efficiencies and pressures obtained experimentally are compared to the predictions to assess the code's ability to predict the effects of the various intake configurations on engine performance. Taper area ratios above 1.5 were found to have a detrimental effect on volumetric efficiency at high-speed tuning peaks. The inlet flow losses for the sharpest beilmouth studied (R1/D = 0.05) had a measurable negative effect on volumetric efficiency, while those of larger-radiused inlets were negligible. The flow losses associated with the bends and S-bends also had a detrimental effect on volumetric efficiency compared to the straight pipe. In general, MANDY showed a good agreement with the experiments for each intake configuration for both volumetric efficiency and intake pressure near the valves at the main tuning peak speeds.
The Effects of Intake Geometry on SI Engine Performance
Author: L. J. HamiltonPublisher:
ISBN:
Category : Engines
Languages : en
Pages : 9
Book Description
Emission Control and Fuel Economy
Author: John H JohnsonPublisher: 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.
Effects of Engine Geometry on the Air Consumption of a Single Cylinder Internal Combustion Engine
Author: H. A. NewlynTapered Intakes on a Single Cylinder Engine
Author: Todd Michael HowardEffect of Exhaust Pressure on Knock-limited Performance of an Air-cooled Aircraft-engine Cylinder
Author: Albert M. LordPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 30
Book Description
An investigation was conducted to determine the effect of exhaust pressure on the knock-limited performance of an air-cooled aircraft-engine cylinder.
NACA Wartime Reports. Series E.
Author: Ray E. BolzPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 16
Book Description
The object of this report was to determine the effect on the knock-limited permissible power out-put, on the specific indicated specific fuel consumption, and on the cylinder temperatures (1) of exhaust-gas dilution of the inlet-air charge, (2) of inlet-air temperature without exhaust-gas dilution, and (3) of compression ratio.
Engines
Author: John L. LumleyPublisher: Cambridge University Press
ISBN: 9780521644891
Category : Science
Languages : en
Pages : 276
Book Description
Innovative text focusing on engine design and fluid dynamics, with numerous illustrations and a web-based software tool.
Using Exhaust Gas Recirculation (EGR) in Spark-ignition Engines to Lower NOx Emissions and Improve Fuel Consumption
Author: Patrick Glenn SzymkowiczPublisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 150
Book Description