Diesel Milestone: Bosch Ships its 25-Millionth Common Rail System
5 August 2005
|Common Rail Injector System. Photo: Bosch.|
At the end of July, Bosch delivered its 25-millionth common rail fuel injection system for diesel vehicles. In 2004 alone, the automotive supplier produced 5.8 million systems.
Bosch first introduced common rail injection in 1997. In 2003, Bosch launched its third-generation common rail system featuring piezoelectric inline injectors, which assist in reducing engine emissions by 15%–20%, while simultaneously decreasing combustion noise and fuel consumption.
Continuously improving high-pressure injection systems offer ever finer and more flexible control over the timing and amount of injections (pre-, main and post-combustion). This helps optimize combustion in the cylinders.
Partly as a result of that ability, particulate emissions from new diesel passenger vehicle engines have been reduced by some 90% since 1990. Other emissions, including carbon monoxide, nitrous oxide and hydrocarbons, have been reduced by at least 95% percent, according to Bosch.
Common rail offers automakers great potential to meet stringent emissions standards taking effect in the U.S. in 2007. Additionally, diesel offers inherent environmental advantages [over gasoline platforms], such as decreasing carbon dioxide emissions by approximately 15 to 20 percent.—Kevin DeHart, SVP North American diesel systems business unit
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