In combination with effective temperature management, SCR-based exhaust-gas treatment can do even more to reduce nitrogen oxide emissions. Bosch has developed an SCR technology called DI-SCR that uses a double injection of urea.

Exhaust-gas treatment by selective catalytic reduction of nitrogen oxides (SCR): Nitrogen oxides (NO x) are reduced in presence of oxygen. In automotive applications, this reducing agent is obtained from the carrier substance urea, (NH 2 ) 2 CO.

In BOSCH's view the double-injection SCR technology represents an efficient, robust and targeted method to achieve this goal. AdBlue® is injected separately by a close-coupled SCR (coated DPF) and a second SCR located away from the engine.

The Bosch Denoxtronic System is the leading OEM emissions solution utilizing Selective Catalytic Reduction (SCR) technology. SCR technology is an Exhaust Gas Treatment strategy designed to reduce oxides of nitrogen (NOx) emissions from diesel vehicles. NOx gasses react in the atmosphere to form smog and acid rain. The Bosch Denoxtronic system is

With its combination of diaphragm pump technology and actively switched solenoid valves, the supply module provides precise, reliable AdBlue ® delivery and is ideal for use with DI-SCR systems. Thanks to the system concept without a return-to-tank facility, system costs are reduced and the delivered AdBlue ® can be measured very precisely.

May 12, 2018 · In BOSCH’s view the double-injection SCR technology represents an efficient, robust and targeted method to achieve this goal. AdBlue® is injected separately by a closecoupled SCR (coated DPF) and a second SCR located away from the engine.

The SCR system (Selective Catalytic Reduction) with the Denoxtronic Urea Dosing System from Bosch further reduces these raw emissions by up to 95%.

The Bosch experimental test vehicle is a modern compact diesel in which the company’s engineers have modified nearly all the components of the powertrain and exhaust-gas system to take advantage of advances in technology and information gained from ongoing experimentation.

The majority of truck manufacturers chose to use selective catalytic reduction (SCR) technology to meet the standards. As part of SCR technology, Bosch provides the Denonxtronic 2.2 dosing system which injects urea into the exhaust which interacts with the SCR catalyst to reduce the NOx emissions level.

Die SCR-Technologie mit Doppeldosierung kann in Verbindung mit einem leistungsfähigen Temperaturmanagement die Stickoxid-Emissionen in einem Nutzfahrzeug weiter senken. Das SCR-System spritzt abhängig von der Fahrsituation Harnstoff in einen motornahen und motorfernen Katalysator ein.