Abstract: An airflow converger belonging to the field of auto parts, that was developed to improve air supply conditions and performance of internal combustion engines includes: a tubular body equipped at an upper end with an air inlet, having parallel fins that direct airflow lines entirely in parallel; internally, the body has an inner surface that acts on the airflow; and an opposite end of the body has an outlet positioned horizontally and connected to an air receiving medium like a carburetor or throttle body of a vehicle's engine system, the airflow lines flowing entirely in parallel as they move through the body from the inlet to the outlet.

Abstract: An air filter assembly module, belonging to the field of auto parts, and that was developed to improve air supply to internal combustion engines and their performance, includes: a dirty air admission inlet; a chamber, in which the inlet opens; an air filtering element housed in the chamber; a clean air outlet, derived from the chamber and positioned downstream the filtering element; means of noise reduction; an apparatus for recirculation of oil vapors from the oil sump to the combustion chamber; an airflow converger located at the outlet of the module having selected geometry in order for the airflow, subject to constant or variable flow conditions, to be converted from turbulent flow with high recirculation rate to laminar flow with minimized or annulled recirculation rate and turbulence intensity, all incorporated and assembled in a housing assembly located at the top of the engine compartment.