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SAE technical paper series, Volume 2004-01-1973.
With the high auto ignition temperature of natural gas, various approaches such as high compression ratios and/or intake charge heating are required for auto ignition... 
Exhaust gas recirculation (EGR) | Diesel / Compression Ignition engines | Performance tests | Single cylinder engines | Diesel fuels | Alternative fuels
eJournal
SAE technical paper series, Volume 2004-01-0647.
Spiraling manufacturing costs for exhaust-gas treatment and tougher legislative requirements are good reasons for seeking new approaches to reach the ever-increasing emission-targets... 
Electronic control systems | Exhaust gas recirculation (EGR) | Catalytic converters | Emissions | Exhaust systems
eJournal
SAE technical paper series, Volume 2001-01-2473.
The composite fuel, trademarked as “Super-Gas™”, a combination of Propane (LPG) and Compressed Natural Gas (CNG... 
Exhaust emissions | Tests and Testing | Vehicle performance | Compressed natural gas | Engines | Intelligent transportation systems | Alternative fuels
eJournal
SAE technical paper series, Volume 2000-01-0478.
..., while the second part gives a description of activities on electrochemical NOx reduction. The Electrochemical Reactor for filtration and continuous combustion of soot from diesel exhaust gas has been described earlier [1, 2... 
Diesel exhaust emissions | Nitrogen oxides | Emissions | Exhaust systems
eJournal
SAE technical paper series, Volume 2008-01-0907.
.... The pressure sensor used in the DPF system has to be at an affordable price and to be reliable against corrosion, freezing, moisture and clogged soot in the harsh environment of exhaust gas with high... 
Vehicle networking | Sensors and actuators | Diesel exhaust emissions control | Diesel particulate filters | Emissions
eJournal
SAE technical paper series, Volume 981395.
Lean-burn natural gas engines offer attractively low particulate matter emissions and enjoy higher efficiencies than their stoichiometric counterparts... 
Exhaust gas recirculation (EGR) | Ignition timing
eJournal
SAE technical paper series, Volume 780648.
Calibration gases are an essential element of pollution measurement. Their importance is emphasized because calibration errors are translated directly to the measured data... 
Exhaust emissions | Emissions control | Emissions
eJournal
SAE technical paper series, Volume 881160.
Allison Gas Turbine is conducting a program to develop components for a direct coal-fueled gas turbine and demonstrate operating feasibility of a complete system in a proof-of-concept engine test... 
Exhaust emissions | Gas turbines | Coal | Emissions
eJournal
SAE technical paper series, Volume 871653.
This paper deals with the separation of short-circuit gas from exhaust gas in a two-stroke cycle gasoline engine and the measures to effectively utilize the short-circuit gas... 
Pistons | Exhaust gas recirculation (EGR) | Gas engines | Spark ignition engines
eJournal
SAE technical paper series, Volume 830585.
Eight exhaust gas condensates were evaluated for their corrosiveness towards plain carbon steel, Type 1 aluminized steel, Galvalume, and Type 409 stainless steel... 
Exhaust emissions | Corrosion | Steel | Emissions
eJournal
SAE technical paper series, Volume 2007-01-0126.
The effects of intake dilution with various dilution gases including nitrogen, argon, and carbon dioxide on low temperature diesel combustion were investigated in a naturally aspirated DI diesel... 
Diesel exhaust emissions | Exhaust gas recirculation (EGR) | Diesel / Compression Ignition engines | Exhaust emissions | Carbon dioxide | Emissions
eJournal
SAE technical paper series, Volume 2002-01-2712.
Increasingly stringent emission levels require better quality facility gas supplies to enable more precise measurements at low levels and reduce variation in test results... 
Gases | Diesel / Compression Ignition engines | Statistical analysis | Exhaust emissions | Quality control | Emissions measurement | Spark ignition engines
eJournal
SAE technical paper series, Volume 750414.
.... Accordingly, exhaust gas recirculation (EGR) has been receiving continued efforts as one of promising NOx control... 
Exhaust gas recirculation (EGR)
eJournal
SAE technical paper series, Volume 922361.
Existing air-fuel ratio control systems for lean burn gas engines are rather complicated... 
Lean burn engines | Exhaust emissions | Gas engines | Natural gas | Emissions
eJournal
SAE technical paper series, Volume 2005-01-3778.
About 2000 hours of gas engine operation with producer gas from biomass as fuel has been conducted on the gasification combined heat and power (CHP... 
Exhaust emissions | Wear | Gas engines | Spark ignition engines | Alternative fuels
eJournal
SAE technical paper series, Volume 740249.
.... The effects of temperature, gas composition, NOx concentration, and sulfur dioxide on the activity of some potential NOx catalysts have been studied... 
Exhaust emissions | Emissions
eJournal
SAE technical paper series, Volume 780115.
.... The sampling system for steady state engine operation utilizes the dilution of exhaust gas with air, injection of 14C radioactive tracers and collection of the condensed particulates on a filter... 
Exhaust emissions | Emissions
eJournal
SAE technical paper series, Volume 961103.
Engine dynamometer testing of homogeneous charge, spark ignition lean burn engines fueled by natural gas, hydrogen/natural gas blends and neat hydrogen was conducted to determine if NOx emissions... 
Exhaust emissions | Hydrogen fuel | Compressed natural gas | Spark ignition engines | Emissions
eJournal
SAE technical paper series, Volume 871075.
.... Correlation with the traffic load was positive. The level of the gases except for O3 was higher in the winter months. Friday (the weekend... 
Exhaust emissions | Hydrocarbons | Air pollution | Nitrogen oxides | Carbon monoxide | Emissions
eJournal
SAE technical paper series, Volume 800394.
Recently developed catalytic systems on a precious metal/metal support basis were tested unter European conditions using low leaded gasoline (0.15 g/l).... 
Exhaust emissions | Fuel additives | Emissions | Exhaust systems
eJournal
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