What is a dosing module?
The dosing module is a component in the Bosch system that helps to reduce nitrogen oxide emissions in the exhaust system. Its job is to spray the urea-water solution into the exhaust system.
What is the Bosch Denoxtronic system?
The Bosch Denoxtronic system is an important part of the exhuast gas treatment system in commercial and off-highway vehicles. It controls and doses the injection of Diesel Exhaust Fluid, such as AdBlue, into the exhaust gas stream to reduce NOx emissions.
What is Dosing Control Unit?
Dosing Control Unit or “DCU” means the electronic hardware device, together with the software and calibrations installed on the device, that controls, among other things, the operation of the DEF dosing system in the Subject Vehicles.
What pressure does the supply module maintain in the Deno?
4.5 to 8.5 bar
The Supply Module sucks the AdBlue/DEF out of the tank with a diaphragm pump and compresses it to the system pressure of 4.5 to 8.5 bar required for atomization.
What is the 7th injector?
If it is 6 cylinder, the 7th injector would be an additional injector feeding the common air duct prior to the intake plenum. Example would be an injector in a turbo inlet.
What is catalyst dosing unit?
The dosing unit, or injector, is a robust component that delivers an atomized urea and air mixture upstream of the SCR catalyst. The design allows injection in the center of the exhaust gas flow, which minimizes the risk of deposits and improves reliability.
How does the SCR system work?
An SCR (Selective Catalytic Reduction) system is a system installed on diesel vehicles to reduce harmful Nitrous Oxide (NOx) emissions. It works by injecting an automotive grade urea, or Diesel Exhaust Fluid (DEF) through a specially designed catalyst, into the exhaust stream of a diesel engine.
Can you clean a doser valve?
You can either can get it cleaned at a dealership or repair facility, or you can do it yourself. Cleaning the doser valve yourself can be relatively straightforward and cost-effective. You just need some basic hand tools and brass bristled brush. With a cleaner doser valve, you will be operating at an optimal level.
What is Ahi module?
What does an AHI module do? The AHI module’s purpose is to regulate and control the amount of fuel that goes to the 7th injector during the DPF regeneration process. The AHI module has a low-pressure fuel and high-pressure fuel that is controlled by the internals of the AHI module.
How does a doser valve work?
During active regeneration, the doser valve injects a fine mist of fuel into the exhaust stream, where it then ignites on the surface of the DOC to raise the exhaust temperature and oxidize the particulate matter in the CDPF. The Doser assembly also includes a fuel pump and filter.
What is SCR equipment?
What is Selective Catalytic Reduction? Selective Catalytic Reduction (SCR) is an advanced active emissions control technology system that reduces tailpipe emissions of nitrogen oxides (NOx) down to near-zero levels in newer generation diesel-powered vehicles and equipment.
What is a Bosch Denoxtronic dosing module?
The dosing module is part of the Bosch Denoxtronic system which contributes towards reducing the NOx emissions. It sprays the required diesel exhaust fluid (DEF) into the exhaust system.
How does a Denoxtronic supply module work?
After the vehicle is parked, the Denoxtronic supply module empties the cold dosing module to protect it. The core task of the dosing module is the demand-based injection of diesel exhaust fluid into the exhaust manifold. A distinction is made between two variants. The water-cooled dosing module is actively flushed with coolant.
What is a dosing module in a diesel engine?
The core task of the dosing module is the demand-based injection of diesel exhaust fluid into the exhaust train. A distinction is made between two variants. The water-cooled dosing module is actively flushed with coolant.
How to install the watercooled dosing module in narrow installation spaces?
The hydraulic connection on the dosing module and the coolant connections can be aligned in different directions to make them easier to mount in narrow installation spaces on the engine. High variance of hydraulic connector possibilities to install the watercooled dosing module in narrow installation spaces