Green Car Congress
MAY 1, 2009
The researchers found that the combination of technologies allowed improvements in fuel economy over the engine drive cycle. Furthermore, a reasonable improvement in dilution tolerance could be achieved at higher engine loads, which could eliminate over-fueling requirements under such conditions. Cairns et al. SAE 2009-01-0138).
Green Car Congress
MARCH 27, 2020
For the past four years, the Co-Optimization of Fuels & Engines (Co-Optima) National Laboratory consortium has focused research efforts primarily on turbocharged (boosted) spark-ignition (SI) engines for light-duty vehicles. The report highlights researchers’ answers to three vital questions: What fuels do engines want?
Green Car Congress
JUNE 28, 2019
While fuel economy ratings of today’s cars significantly outstrip those of just a decade ago, cost-effective efficiency improvements remain limited by existing engine designs and fuel formulas. —NREL Vehicle Technologies Program Manager John Farrell.
Green Car Congress
AUGUST 30, 2009
The Brazilian government’s dedication to the ethanol industry declined and incentives given by the government wore off, causing hydrous ethanol-fueled vehicle production to decline in the late 1980s to early 1990s. Named flex-fuel vehicles (FFVs), these automobiles run on gasoline, ethanol, or any blend of the two.
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