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January 22, 2008 USA Today
By Jordan SchraderMass-transit systems across the USA are accelerating orders for diesel-electric hybrid buses, despite an extra cost of more than $100,000 per bus.Four U.S. cities recently ordered more than 1,700 hybrid buses,...
December 10, 2007 Motorsport.com
By Nancy Knapp Schilke The first ever all-diesel powered racing series will hit the tracks in 2008 with the formation of the Jetta TDI Cup, sanctioned by the Sports Car Club of America (SCCA) Pro Racing department. The idea of...
November 22, 2007 Edmunds Inside Line
By Alistair WeaverInside Line Q&A: Volkswagen Group's Wolfgang HatzDoes diesel power have a successful future in the U.S.?Next year, Audi will introduce a diesel A4 in the U.S. that will be available in all 50 states. We hope to...
November 15, 2007 USA Today
By Ron Barnett"(School buses) drive defined routes and have more than one opportunity to be charged per day," Duvall says. There is some federal help available. Clean School Bus USA, a public-private environmental partnership run...
October 30, 2007 Volkswagen of America
LAS VEGAS – Volkswagen of America, Inc. announced today that it will bring TDI clean diesel technology to select North American race tracks starting in May 2008. The Jetta TDI Cup series will be sanctioned by the Sports Car Club...
Displaying results 16 to 20 out of 71
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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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