News tagged with diesel engines

Delphi gasoline-injection engine technique rivals hybrid's edge

(Phys.org) -- Running a diesel like engine on gasoline is something Delphi is doing in notable fashion. They claim they are on to a promising way to enjoy an engine that gives the vehicle owner high efficiency ...

Technology / Energy & Green Tech

created May 21, 2012 | popularity 4.7 / 5 (18) | comments 40 | with audio podcast report

Tiny heat engine may be world's smallest

(PhysOrg.com) -- Steam engines, combustion engines, and diesel engines are all different types of heat engines, which operate by converting heat energy into mechanical work. Although heat engines have existed ...

Physics / General Physics

created Feb 02, 2011 | popularity 4.7 / 5 (29) | comments 10 | with audio podcast feature

Volkswagen's XL1 said to be world's most economical car

(PhysOrg.com) -- Volkswagen has unveiled its new, prototype super-efficient hybrid vehicle, the XL1, at this week's Qatar motor show. The car has been under development for a decade and Volkswagen claims it ...

Technology / Energy & Green Tech

created Jan 28, 2011 | popularity 4.8 / 5 (34) | comments 22 | with audio podcast report

Advanced engine-control system reduces biodiesel fuel consumption and emissions

Researchers from Purdue University and Cummins Inc. have developed an advanced "closed-loop control" approach for preventing diesel engines from emitting greater amounts of smog-causing nitrogen oxides when ...

Technology / Energy & Green Tech

created Jan 25, 2010 | popularity 3.8 / 5 (5) | comments 0 | with audio podcast

Gasoline-diesel 'cocktail': A potent recipe for cleaner, more efficient engines

(PhysOrg.com) -- Diesel and gasoline fuel sources both bring unique assets and liabilities to powering internal combustion engines. But what if an engine could be programmed to harvest the best properties ...

Technology / Energy & Green Tech

created Aug 03, 2009 | popularity 4.3 / 5 (27) | comments 6

Combining gas and diesel engines could yield best of both worlds

It may be hard to believe, but the beloved gasoline engine that powers more than 200 million cars across America every day didn't get its status because it's the most efficient engine. Diesel engines can be ...

Technology / Engineering

created May 05, 2011 | popularity 4.6 / 5 (16) | comments 17 | with audio podcast

Five myths about diesel engines

(PhysOrg.com) -- Diesel engines, long confined to trucks and ships, are garnering more interest for their fuel efficiency and reduced carbon dioxide emissions, relative to gasoline engines. Argonne mechanical ...

Technology / Energy & Green Tech

created Jun 14, 2011 | popularity 5 / 5 (2) | comments 15 | with audio podcast

Hydrogen-generating technology might power boats, store energy from wind, solar sources

Researchers have developed a method that uses aluminum and a liquid alloy to extract hydrogen from seawater to run engines in boats and ships, representing a potential replacement for gasoline and diesel fuel ...

Technology / Energy & Green Tech

created Oct 25, 2010 | popularity 4.8 / 5 (14) | comments 7 | with audio podcast

Hybrid technology moves from road to water

Hybrid engines aren't just for cars anymore. Hybrid engine systems are slowly catching on with environmentally conscious sailors, replacing less-fuel efficient diesel motors on sailboats.

Technology / Energy & Green Tech

created Mar 02, 2012 | popularity 2.5 / 5 (4) | comments 11

Building lightweight trains

The less trains weigh, the more economical they are to run. A new material capable of withstanding even extreme stresses has now been developed. It is suitable for a variety of applications, not least diesel ...

Technology / Engineering

created Mar 28, 2012 | popularity 4 / 5 (3) | comments 0

Engineered tobacco plants have more potential as a biofuel

Researchers from the Biotechnology Foundation Laboratories at Thomas Jefferson University have identified a way to increase the oil in tobacco plant leaves, which may be the next step in using the plants for biofuel. Their ...

Biology / Biotechnology

created Dec 31, 2009 | popularity 3 / 5 (4) | comments 6 | with audio podcast

Gasoline worse than diesel when it comes to some types of air pollution: study

The exhaust fumes from gasoline vehicles contribute more to the production of a specific type of air pollution-secondary organic aerosols (SOA)-than those from diesel vehicles, according to a new study by scientists from ...

Space & Earth / Environment

created Mar 02, 2012 | popularity 1 / 5 (1) | comments 3

Diesel technologies drastically cut emissions under real-world conditions

New research from North Carolina State University shows that federal requirements governing diesel engines of new tractor trailer trucks have resulted in major cuts in emissions of particulate matter (PM) and nitrogen oxides ...

Technology / Engineering

created Apr 16, 2012 | popularity not rated yet | comments 0

Green car makers urged to go a step further

Four international bodies on Wednesday called on governments and car makers to halve global vehicle emissions by 2050 as the auto industry insisted it was serious about producing greener vehicles.

Technology / Energy & Green Tech

created Mar 04, 2009 | popularity 3 / 5 (5) | comments 0

Traffic's true toll: Researchers explore the health effects of vehicle exhaust

(PhysOrg.com) -- When Dr. Ralph Delfino and Michael Kleinman look at Southern California's gridlocked freeways, they don't just see traffic. They see research opportunities.

Medicine & Health / Health

created May 22, 2009 | popularity 4.6 / 5 (9) | comments 1