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SAE technical paper series, Volume 960067.
Malfunctioning emission controls continue to be a major source of emissions from in-use vehicles. We analyze two sources of data on cars with malfunctioning... 
Exhaust emissions | Hydrocarbons | Nitrogen oxides | Emissions control | Tests and Testing | Remote sensing | Emissions
eJournal
SAE technical paper series, Volume 950410.
The revisions in the United States Clean Air Act of 1990 and recent regulatory actions taken by the California Air Resources Board and European Economic... 
Hydrocarbons | Emissions control | Emissions
eJournal
SAE technical paper series, Volume 861560.
Onboard refueling control technology has been successfully applied to two vehicles with 98+% efficiency without a vapor seal in tests with 11.8 RVP fuel at... 
Seals and gaskets | Refueling emissions | Hydrocarbons | Emissions control | Emissions | Refueling
eJournal
SAE technical paper series, Volume 942043.
Regulated and non-regulated emissions from five current European diesel passenger cars and one light-duty diesel truck were measured to assess the... 
Diesel exhaust emissions | Test facilities | Particulate matter (PM) | Hydrocarbons | Fuel economy | Emissions
eJournal
SAE technical paper series, Volume 860488.
Valid inspection techniques are required so that previous incidents of misfueling may be determined on vehicles involved in in-use emission surveillance... 
Exhaust emissions | Surveillance | Gasoline | Hydrocarbons | Nitrogen oxides | Emissions control | Tests and Testing | Carbon monoxide | Catalytic converters | Emissions
eJournal
SAE technical paper series, Volume 960064.
Real-world tailpipe emissions from properly-functioning, model year 1991-94 conventional gasoline-fueled cars associated with vehicle operations not emphasized... 
Exhaust emissions | Hydrocarbons | Nitrogen oxides | Emissions control | Carbon monoxide | Emissions
eJournal
SAE technical paper series, Volume 881681.
This paper determines the level of improvement in Federal Test Procedure (FTP) exhaust emissions realized by typical in-use vehicles over the last twenty years... 
Exhaust emissions | Hydrocarbons | Environmental regulations and standards | Nitrogen oxides | Emissions control | Carbon monoxide | Emissions
eJournal
SAE technical paper series, Volume 740564.
Automotive exhaust emissions of polynuclear aromatic (C16+) hydrocarbons (PNA) were reduced by 65-70% by current emissions control systems and by about 99% by... 
Hydrocarbons
eJournal
SAE technical paper series, Volume 2004-01-3055.
Emissions optimization, particularly for complex engines, relies on developing mathematical correlations or ‘Response Surface Models’ of engine outputs. There... 
Hydrocarbons | Emissions control | Spark ignition engines
eJournal
SAE technical paper series, Volume 2001-24-0066.
This paper reports the results of a study on adsorption properties of zeolitic materials with different pore opening and Si/Al ratio towards engine cold start... 
Test procedures | Hydrocarbons | Emissions control | Diesel exhaust emissions control
eJournal
SAE technical paper series, Volume 952080.
As the federal regulations of on-road engine exhaust emissions become more and more stringent, the exhaust emissions of small utility engines are now under... 
Exhaust emissions | Hydrocarbons | Nitrogen oxides | Emissions control | Tests and Testing | Emissions
eJournal
SAE technical paper series, Volume 922376.
Three European vehicles, one fitted with a three-way catalyst (TWC), were tested using a typical European gasoline (95 RON) and a first generation reformulated... 
Diesel exhaust emissions | Exhaust emissions | Hydrocarbons | On-board Energy Sources | Emissions
eJournal
SAE technical paper series, Volume 2009-01-2724.
Diesel vehicles are significant sources of NOx and PM emissions, and to a lesser extent, emissions of CO, HC, and toxic species. For many years, biodiesel fuel... 
Particulate matter (PM) | Hydrocarbons | Diesel exhaust emissions control | Carbon monoxide | Diesel fuels | Emissions | Alternative fuels
eJournal
SAE technical paper series, Volume 2001-26-0008.
Developments of the low emission vehicles (LEV) require the mass emission measurement technologies to be highly accurate. The present paper first reviews... 
Exhaust emissions | Hydrocarbons
eJournal
SAE technical paper series, Volume 910838.
High engine efficiency and low emissions on spark ignition engines can be achieved with a new camshaft profile switching device. This enables the use of two... 
Exhaust gas recirculation (EGR) | Hydrocarbons | Nitrogen oxides | Camshafts | Emissions
eJournal
SAE technical paper series, Volume 2001-01-0733.
Current EPA and CARB regulations allow a maximum of 2.0 g/test for Hot Soak + Diurnal evaporative emissions. The State of California has adopted LEV II... 
Fuel tanks | Exhaust emissions | Hydrocarbons | Environmental regulations and standards | Evaporative emissions control systems (EVAP) | Emissions | Refueling | Electric motors
eJournal
SAE technical paper series, Volume 960347.
A new adsorber concept has been tested. A zeolite adsorber with a central hole is mounted below the first catalyst, with a second catalyst downstream. During... 
Hydrocarbons | Emissions control | Catalytic converters | Emissions
eJournal
SAE technical paper series, Volume 951856.
A methodology is established to assess total life-cycle exhaust emissions for light-duty motor vehicles. The focus is to model a vehicle's carbon monoxide... 
Exhaust emissions | Surveillance | Life cycle analysis | Hydrocarbons | Air pollution | Nitrogen oxides | Emissions
eJournal
SAE technical paper series, Volume 2006-01-3372.
In 2007, the Environmental Protection Agency will begin measuring not only exhaust emissions from diesel engines, but also emissions from the crankcase if it... 
Road tests | Diesel / Compression Ignition engines | Hydrocarbons | Nitrogen oxides | Mathematical models | Carbon monoxide | Crankcases | Emissions
eJournal
SAE technical paper series, Volume 980049.
Hydrocarbon emissions represent one of the causes for the formation of ozone and other photochemical pollutants in the atmosphere. Hydrocarbons (HC's), their... 
Fuel tanks | Fuel systems | Thermal testing | Hydrocarbons | Evaporative emissions control systems (EVAP) | Emissions
eJournal
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