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June 14, 2007 Industry Week
In the Crossover to sustainable mobility engineering competition (Challenge X) first and second places went to Mississippi State and University of Wisconsin-Madison teams – both of which used diesel engines running on biodiesel...
April 11, 2007 Enivronmental Protection Agency
New York, N.Y. - What do chicken dinners, salmon and filet mignon have in common? They could all be found in a state-of-the-art pollution slashing hybrid diesel electric trailer refrigeration unit like the one showcased by the...
March 28, 2007 J.D. Power and Associates
NEW YORK -- Conventional gas engines will remain dominant in the U.S. market, but hybrids and diesels are steadily gaining market share, especially as gas prices and concerns about global warming rise and technology advances,...
February 5, 2007 Passenger Transport
As part of its ongoing partnership with the city of Indianapolis' Knozone program, the city's public transportation agency, IndyGo, unveiled a bus wrapped with the message "Clean air is in" on January 16. The bus is...
January 11, 2007 The Trucker
TROY, Mich. — ArvinMeritor and Wal-Mart Transportation of Bentonville, Ark., have agreed to the development of a dual-mode, diesel-electric drivetrain for a Class 8 tractor.The vehicle, which is believed to be the first dual-mode...
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Technology Spotlight
The diesel industry is constantly evolving. Through aggressive research and development, advanced clean diesel technologies are changing the way these engines, fuels and aftertreatment systems work.
This spotlight on the latest in advanced diesel technology provides insights into the revolutionary innovations being designed and tested by industry groups for ever greater power, efficiency and environmental progress.
Cummins DOC+CCV Receives EPA Verfication
An emission control system developed by Cummins Emission Solutions & Cummins Filtration has been verified under the US EPA Environmental Technology Verification (ETV) program. The system consists of a precious metal diesel oxidation catalyst (DOC) and a closed crankcase ventilation (CCV) system (coalescer breather and crankcase depression regulator valve).
The system is applicable to heavy-duty highway engines using ultra-low sulfur diesel fuel. After aging, the system reduced PM emissions by 30%, HCs by 68%, and CO by 60%. Read more.
Mercedes Bionic Combines Diesel Power With Aquatic Design
Featured in Popular Science Magazine among the next generation of
high-efficiency small cars, the Mercedes-Benz Bionic Car moves like a fish in water. The shape of the aerodynamic concept car is aquatically inspired and resembles a tropical boxfish. Despite its cube-shaped form, the streamlined profile and lightweight construction create the conditions for an incredibly low fuel consumption of 70 miles per gallon.
Equipped with a 2.0-liter, four-cylinder, direct-injection turbodiesel
engine, the Bionic reaches 62 mph in 8.2 seconds, while making 140 hp and 221 lbs-ft of torque. The engine is clean enough to meet current Euro 5 exhaust emission standards and a Selective Catalytic Reduction system allows for nitrogen oxide emission reductions of up to 80 percent.
Army Recycling Diesel Exhaust into Drinking Water
March 2007
Using modified Humvees, the U.S. Army is field testing a system that converts diesel exhaust into clean drinking water. Through a complex series of filters and chemical processes, the diesel exhaust is recirculated through a separate tank and broken down into water vapor. Though the technology is only being used in a few vehicles, the Army expects the concept to provide an additional tactical advantage on the battlefield, aiding in troop survivability. Read the feature story in Popular Science.
MTU Launches Cleaner Power Solution: New Generation Of Series 4000 Engines Meet Stricter Emissions Rules
via Lloyd's List
By Hugh O'Mahony
MTU Friedrichshafen has unveiled a new generation of its Series 4000 high speed marine diesel engines that are cleaner and more powerful than their predecessors.
The new units meet the demands of US Environmental Protection Agency Tier 2 emission specifications, which prescribe a significant reduction in nitrogen oxide.
The manufacturer said its new marine units undercut the NOX-limit of 7.2 g/kWh by employing purely internal engine technology without any exhaust aftertreatment.
The new combustion balance also achieved a significant decrease in particulate emissions.
The Series 4000 marine diesel engines produce power of up to 4.300 kW.
"Because compliance with exhaust emission specifications has been achieved without exhaust aftertreatment and the additional sub-assemblies that go with it, the new engine will fit the same footprint as its predecessor."
MTU executive vice-president, engineering and operations, Gerd-Michael Wolters, said: "MTU Friedrichshafen was the first manufacturer of large diesel engines to use common rail injection technology.
MTU said it has also achieved technological progress on the turbocharging front: its Series 4000 marine engines are fitted with two (12 and 16-cylinder versions) or four (20-cylinder version) of the turbochargers developed and manufactured by MTU in-house.
The TCs can be switched in line with engine speed and the single-stage sequential charging system ensures optimum performance across the whole engine performance map.
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