What is DPF EGR SCR and DEF for your diesel engine? Why to delete and how to delete?

This video is created by https://dl.ge/aff/5

The scheme of the diesel engine operation

Combustion chamber
Fuel combustion takes place in the combustion chamber, as a result DPM (soot) and NOx (nitrogen oxides) are produced, which are later released into the atmosphere through the exhaust line.

Exhaust line
The exhaust line is designed to release the exhaust gases DPM (soot) and NOx (nitrogen oxides)

Exhaust gases
Fuel combustion result: DPM (soot) and (nitrogen oxides) NOx

To reduce emissions into the atmosphere (DPM and NOx), manufacturers have developed exhaust gas after-treatment systems:

The EGR system
Exhaust Gas Recirculation is designed to reduce NOx emission, the principle of its operation is to redirect (up to 50%) exhaust gases back into the intake manifold.

Disadvantages of the EGR system:
- increases of the fuel consumption,
- decreases of the engine power,
- leads to non-efficient fuel combustion,
- increases the DPM (soot) emission

DPM (soot), gets into the engine oil, turns into an abrasive, which increases wear and tear of the engine and reduces its life time.

The DPF system
Diesel Particulate Filter is a fine filter designed to retain DPM (soot) and therefore reduce DPM emissions.

Disadvantages of the DPF system:
- reduces engine efficiency,
- increases exhaust back pressure.

DPF RE-GEN (burn)
The filter regeneration process occurs by increase temperature to 1100 ⁰C inside the DPF, due to injection of additional fuel into the engine combustion chamber.
Consequences of an irregular/incorrect DPF regeneration process:
- the DPF system is clogged,
- reduction in engine efficiency.

DEF & SCR Systems
Designed to eliminate nitrogen oxides (NOx).
SCR means Selective Catalytic Reduction,
DEF (Diesel Exhaust Fluid) is a liquid (urea) consisting primarily of ammonia (NH3).

Operating principle:
The control unit sends a signal for urea injection (NH3) into the SCR.
During the chemical reaction: (NH3+NOx=H2O+N2), water and nitrogen are produced.

Operational problems of DEF & SCR:
- if the DEF level is insufficient, the vehicle goes into emergency mode, the speed drops to 5 MPH,
- if the DEF is not updated in timely manner and/or temperature drops occur, the urea may crystallize, in this case the engine will not be able to start until the problem is fixed!

DrunkLab has developed the best solutions for you to disable EGR/DPF/DEF&SCR systems.


DrunkLab LLC is a leading developer of tuning solutions for commercial Volvo-family engines ( Mack, Volvo, Renault, UD trucks and buses and и Volvo CE - excavators, pipelayers, haulers). We can help you with DPF delete, SCR delete, EGR delete remote tuning.

We are the sole manufacturer of SCR/DPF-off VILKUS-62 emulators and next generation tuning adapter VLOMINGO.

https://dl.ge/product-tag/emulators/a...
https://dl.ge/product/vlomingo/aff/5

SCR / DPF / EGR delete for Mack trucks: https://dl.ge/product-category/mack-t...

SCR / DPF / EGR delete for Volvo trucks: https://dl.ge/product-category/volvo-...

SCR / DPF / EGR delete for Renault trucks: https://dl.ge/product-category/renaul...

SCR / DPF / EGR delete for Volvo heavy equipment: https://dl.ge/product-category/volvo-...