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Clean Diesel Licenses SCR Technologies to Bosch

Clean Diesel Technologies, Inc. (CDTI) has licensed its patents for technologies for control of NOx emissions by selective catalytic reduction (SCR) to Robert Bosch GmbH on a worldwide, non-exclusive basis.

The patents Bosch has agreed to license include Clean Diesel’s ARIS (Advanced Reagent Injector System, earlier post) method of single-fluid return-flow cooled urea injection for SCR control of NOx emissions, as well as patents covering the combination of exhaust gas recirculation (EGR) with SCR to minimize toxic emissions while optimizing vehicle fuel efficiency.

In addition to providing  cost-effective control of NOx emissions, the technologies support improved fuel economy. The agreement also includes provision for the use of these technologies in non-vehicular applications such as stationary power generation, rail and marine.

The terms were not disclosed, but Clean Diesel said that its licensing agreements generally are structured around license initiation fees and running royalty payments. Clean Diesel expects its 2007 financial results to include the first revenue under this agreement. Products incorporating these emission control and fuel-efficiency SCR technologies have been developed by Bosch.

This is a significant step for our Company. Clean Diesel has had prior agreements with major companies addressing retrofit markets, and this is the first license targeting a substantial portion of the new diesel vehicles with SCR technology that are predicted to be built over the next several years.

—Bernhard Steiner, Clean Diesel Technologies CEO



Definitely part of the Big Oil/Big Auto plan to protect their interest and to continue building huge numbers of ICEs in the U.S.; only with a new twist of using expensive diesel as the fuel. The diesel ICE is still dirty and requires expensive emission controls. Both ethanol and biodiesel still produce great amounts of GHGs when burned in an internal explosion engine. Many Europeans dislike diesel because of its abhorrent physical properties. It smells, is extremely slippery and stains everything it touches. I wonder what the premium will be for the engines and what the fuel will sell for when autos compete with jet aircraft, trains and long trucks for its use. I'll pass on this one, make do with what I have and wait for my BEV.

P Schager

This should be used not only in diesels, but also in advanced, high-compression ethanol or propane engines. If you run hot, you can increase your efficiency and minimize those other pollutants, especially aldehydes in the case of ethanol.

The inconvenience of maintaining the urea tank supply will be reduced when cars are also plug-in hybrids, so the ICE engine is not used anyway most of the time.

ken johnstone

Retrofit is the key as the number of diesel vehichles already in use is enormous throughtout the world. A litany of factors are coming into play(biodiesel, improved traffic signal timing, and the shift from highways-to-rails) all add up to a reduction in GHGs.

Stan Peterson

Bosch is a significant supplier of automotive components to many auto manufacuturers. I think the most significant item, overlooked by many in this announcement, is that they intend cleanup applications for Rail and Marine applications.

Rail amd marine powerplants are significantly behind the curve in applying cleanup technologies compared to their over the road brethren.

Cleaning up a single rail locomotive is like placing a thousand Priuses on the road and removing a thousand old clunkers.

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