![[Valid Atom 1.0]](valid-atom.png "Validate my Atom 1.0 feed")
TECHNONEWS * Germany - German DI Turbocharged Diesel Truck Engine Slashes Emissions
Munich,Germany -The Daily Tech/ by Jason Mick (Blog) - December 8, 2009: ... Researchers at Technische Universitaet Muenchen (TUM), located in Munich, Germany, have developed a new engine that just may be able to meet the tough new standards without necessitating a catalytic converter. The engine, which may usher in a new era of green performance weighs in at two tons, has hardly any odor of exhaust fumes even when running at full blast... The new engine, dubbed NEMo (Niedrigst-Emissions-LKW-Dieselmotor, the German acronym for "lowest emission truck diesel engine), uses a combination of turbocharging and direct injection to burn the fuel more completely... During recirculation the exhaust gases are compressed to ten times the pressure of the Earth's atmosphere (10 bar), giving enough oxygen for the diesel fuel to burn cleanly. While the pressure is over twice what current engines can handle, NEMo can handle it with ease... Improved direct injection also plays a pivotal role. Traditionally injectors spray large droplets... By using higher pressure direct injection, the engine sprays finer droplets, leading to more complete combustion and less soot. NEMo ups the DI pressure from 1,800 bar to 3,000 bar, allowing this cleaner burn... The team wants to improve their design even more. They're currently trying to better understand how soot particles form. To do this they've created the aforementioned probe -- a speedy sample collector that sucks up a tiny sample of combustion chamber gas in one millisecond. Using the gas sampling valve, 13 samples can be taken during a single ignition, giving the researchers a wealth of new data to better understand and combat soot growth... (Images dailytech: large green-truck wide)
Labels: green technology
posted by Unknown @ 12:12 AM
0 Comments:
Post a Comment
<< Home