What is HHO carbon-cleaning?

“Carbon cleaning” or “HHO carbon cleaning” is the process of removal of carbon deposits from the internal surfaces of the engine and the exhaust tract components, using a mixture of Hydrogen and Oxygen.

Briefly, the process of HHO carbon cleaning consists of the following steps:

  • Production of HHO gas by electrolysis;
  • Pre-mixing of HHO gas with the ambient air in the engine air intake;
  • Running the engine on HHO-air-fuel mix for a predefined period of time;
  • Verification of the results of HHO carbon cleaning;

Electrolysis

The mix of Hydrogen and Oxygen, also known as oxy-hydrogen gas, hydroxy gas, HHO gas, or Brown’s gas, is produced by the electrolysis of water.

The electrolyser uses the mains electrical power, or the power of a car battery, to split water molecules (H2O) into Hydrogen (H) and Oxygen (O).

The mix of Hydrogen and Oxygen is produced by the electrolysis of water. Image credit - wikipedia
The mix of Hydrogen and Oxygen is produced by the electrolysis of water. Image credit – Wikipedia.

HHO gas pre-mix

The HHO gas is introduced into the engine by pre-mixing it with the ambient air in the air intake manifold, while the engine is running.

The HHO gas is introduced into the engine by pre-mixing it with the ambient air
The HHO gas is introduced into the engine by pre-mixing it with the ambient air. Image credit – ANTISMOG.

The negative air pressure created by the engine helps deliver the HHO gas into the engine. Due to the turbulence in the air intake, the HHO gas is pre-mixed with the air, just before the combustion.

Carbon-cleaning process

The process of HHO carbon cleaning itself can take between 30 minutes and 1.5 hours, depending on such factors as engine displacement and the degree of carbon deposits on engine and exhaust tract components. The duration of the HHO carbon cleaning session is determined by the mechanic on the basis of the recommendations of the HHO machine manufacturer.

Once the HHO carbon cleaning process is finished, it is recommended to take the car for a drive on a motorway for at least 15 minutes, to ‘flash’ the remaining carbon deposits from the exhaust.

The process of HHO carbon cleaning itself can take between 30 minutes and 1.5 hours. Image credit - ANTISMOG
The process of HHO carbon cleaning itself can take between 30 minutes and 1.5 hours. Image credit – ANTISMOG.

Results verification

The effectiveness of the HHO carbon cleaning procedure is verified by measuring certain vehicle parameters before and after the process, for example:

  • Exhaust emissions (opacity, NOx, CO, CO2, etc.);
  • Counter-pressure at the DPF (diesel particulate filter);
  • Soot accumulation in the DPF;
  • Degree of movement of the EGR (exhaust gas recirculation) valve;
Reduction in DPF back-pressure value. Image credit - ANTISMOG
Reduction in DPF back-pressure value. Image credit – ANTISMOG.
Reduction in exhaust gas opacity value. Image credit - ANTISMOG
Reduction in exhaust gas opacity value. Image credit – ANTISMOG.

➡️  For more details about the process of hydrogen carbon cleaning, watch this instructional video  ➡️

C-600 carbon-cleaning machine operating sequence

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