Carburer
Carburer is a term that appears to be a misspelling or a non-standard term. It is possible the user is referring to a carburetor, a device used in internal combustion engines. A carburetor's primary function is to mix air and fuel in the correct proportion for combustion. It achieves this by controlling the flow of fuel into the engine's intake manifold, where it is atomized and mixed with incoming air.
Carburetors were a dominant fuel delivery system in automobiles for many decades before being largely replaced
If "carburer" refers to something else, further clarification would be needed to provide an accurate description.