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Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

Green Car Congress

The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). liter downsized turbocharged centrally-mounted direct injection engine. Johnson, David R.

Gasoline 253
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Bosch leading Direct4Gas consortium to develop direct injection for monovalent natural gas engines

Green Car Congress

Today’s CNG vehicles are generally bivalent, running on gasoline and CNG with engines designed for gasoline direct injection. However, because methane behaves differently from gasoline when injected directly, it is important to optimize the combustion process for methane. million (US$4.3 By 2025, this limit could be even lower.

Gas 150
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Calls for an international 48V electrical standard for vehicles; looming WLTP implementation

Green Car Congress

The EU goal is to introduce the WLTP by 2017 if possible and no later than 2020 to coincide with the 95 g/km requirement. This means that in addition the power demand is more difficult to achieve with engine downsizing and transmission down-speeding alone. the Worldwide harmonized Light vehicles Test Procedures (WLTP).

Standards 257
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Study: splash blended ethanol fuels with higher ethanol percentage enable higher thermal efficiency in SI engine

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A team from the University of Birmingham (UK) and Shell Global Solutions has investigated the effect of RON, octane sensitivity and charge cooling in splash-blended ethanol fuels with different volume percentages of ethanol on a single-cylinder direct-injection spark ignition (DISI) research engine. and 85 vol.%

Engine 150
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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines. May, Greg T. Drozd, Allen H.

Fleet 207
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NRC report finds Federal analysis to set LD CAFE and GHG standards generally of high quality; some technologies and issues should be re-examined

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The analysis used by federal agencies to set standards for fuel economy (CAFE) and greenhouse gas emissions for new US light-duty vehicles from 2017 to 2025 was thorough and of high caliber overall, according to a new report from the National Research Council. only the MY 2017-2021 CAFE standards are final. to 41 mpg by 2021 and 48.7

Standards 150
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DOE Co-Optima initiative publishes report reviewing first 12 months; progress on fuels and engines

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Thrust I has concentrated on improving near-term SI engine efficiency and assessing desirable properties for bio-derived or bio-based components (blendstocks) to be blended with petroleum-derived gasoline. The research teams have identified more than 40 promising blendstock candidates. Click to enlarge.

Engine 150