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New Jetta TDi is green and performs well, says Popular Mechanics

Hybrids are not the only vehicles getting the spotlight for the green movement; America also welcomes new diesel technology as the new Volkswagen Jetta TDi. According to Popular Mechanics “it will be the first automobile to meet the world’s most stringent emission control standards, California’s Tier II, Bin 5,” with its 2.0 liter engine that can generate 140 hp and 236 lb.-ft. of torque.

The difference of the new Jetta technology and that of the BlueTec is its way of eliminating “the biggest environmental hurdles facing diesels”, NOx emissions. In BluTec vehicles, the NOx is converted into nitrogen and water by “injecting a urea-based solution into the exhaust system upstream from the catalytic converter.” The Jetta, on the other hand, first stores the NOx in the NOx-storage catalyst, and will then be burned in one of the engine cycles.

A common-rail fuel injection system that uses piezoelectric fuel injectors will also replace Volkswagen’s traditional mechanical system. Fuel will be atomized better with this as higher injection pressures are released. This will also give a chance to control the pollution easier.

Popular Mechanics found after test driving the new Jetta that it is more powerful and is capable “to power through traffic and accelerate from stoplights with authority and a little bravado,” as said by the report. Engine operation was also quieter.

News from: http://www.popularmechanics.com/blogs/automotive_news/4235586.html

This entry was posted on Wednesday, December 5th, 2007 at 1:48 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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