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liter Isuzu diesel engine, demonstrates a 35% fuel efficiency improvement over traditional vehicles in the FedEx Express fleet. FedEx is also working with XL Hybrids, a developer of low-cost hybrid electric powertrain system, to convert ten conventionally-powered panel vans into more fuel-efficient, hybrid vehicles.
Meeting in Chicago, the chief executives of commercial vehicle and engine manufacturers in Europe, Japan, and the United States discussed fuel efficiency and greenhouse gas emissions reductions, diesel fuel specifications, and topics related to heavy-duty engine and vehicle regulation and certification.
Alternative Fuel Technology, LLC has been awarded a Phase 1 SBIR contract (W56HZV-10-C-0200) from the US Army to concept design and demonstrate an ultra-high pressure, intensified fuel injection system for use with jet propellant (JP-8) fuel. With most fuel injection systems, JP-8 fuel causes wear and premature failure.
L) diesel engines at idle and load, using a biodiesel blend (B20) and conventional ultralow sulfur diesel (ULSD) fuel. Their paper appears in the ACS journal Energy & Fuels. Information pertaining to these emissions in diesel engine exhaust is much less complete than that for the regulated pollutants. L) and medium-duty (6.4
Isuzu D201 35 hp diesel engine (left) and the LiquidPiston 40 hp X2 Prototype (right). Other features of the X2 include: Quiet operation: engine lacks poppet valves and over-expansion minimizes exhaust noise. Click to enlarge. LiquidPiston, Inc. Power modulation by cycle skipping increases efficiency and recaptures heat.
A paper on their work was published online 14 October in the ACS journal Energy & Fuels. In addition, the diesel fuel used in previous research has a high sulfur content of 0.25% by weight. liter, naturally-aspirated, in-line four-cylinder direct-injection Isuzu diesel engine. —Tsang et al.
Comparison of DSF fuel economy gains and costs with competing technologies, from Tula’s 2013 SAE paper. The operation of each firing cylinder can be optimized for best thermal efficiency, subject to possible constraints such as air-fuel mixture ratio, peak pressures or temperatures (durability), and other factors. Wilcutts et al.
The world’s leading heavy-duty vehicle and engine manufacturing companies are urging the close cooperation between policy makers in Europe, the United States and Japan to develop practical and effective fuel-efficiency measurement metrics, methodologies and regulations which would then be used all around the globe.
will address natural gas engine emissions and efficiency improvements by developing a natural gas specific combustion design utilizing optimized in-cylinder charge motion and cooled exhaust gas recirculation (EGR). CNG Full Fills with a Complete Smart Fueling System. Cummins Inc. Plug-in Hybrid CNG Drayage Truck “PHET”.
Australia doesn’t have its own fuel efficiency standards, making it one of only two advanced countries without such a rule, alongside Russia. The rules will cut new vehicle emissions by more than half by 2029 and will save Australians $95 billion in fuel costs by 2050.
A team at the University of Michigan has investigated the performance of three different fuels—ultralow sulfur diesel (ULSD), diesel fuel produced via a low temperature Fischer–Tropsch process (LTFT), and a renewable diesel (RD), which is a hydrotreated camelina oil under partially premixed compression ignition (PCCI) combustion.
Without being exhaustive, let’s take a look at some examples. For instance, the charge port will end up being where the gas fuel filler used to be, whether that makes sense for an electric vehicle or not. It supplements, not replaces, the traditional fossil-fuel car. I’m looking primarily at the U.S. I’m hoping for the latter.
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