Patent ID: 6729311
Filing Date: 2004-05-04
Classification: F02D,F02M

Abstract:
An aeration and deaeration device of the fuel tank (1) of an internal combustion engine (6) in whichthe aeration and deaeration are performed through an adsorption filter (4), the adsorption filter (4) can be regenerated by backwashing with atmospheric air, the backwashing air is added in particular to the air intake area of the internal combustion engine (6), the composition of the backwashing air is detected, and in the case of a supply to the air intake area of the internal combustion engine (6), this is taken into account in the control of the combustion process taking place inside the engine (6), â€ƒcharacterized by the features a sensor (9) which detects selected substance and/or state data on the purging air is provided in a purging air line (5) carrying purging air into the intake area of an internal combustion engine (6), the area of the purging air line (5) containing the sensor (9) can be switched together with the interior of the adsorption filter (4) as a forced flow circulation line, for turning the circulation line on and off, a 3/2-way valve (8) is situated in the purging air line (5) downstream from the sensor (9), its one outlet leading to the outside of the circulation line and its other outlet leading back to the adsorption filter (4) through a bypass line (7) running parallel to the purging air line (5), with the circulation line turned on, the lines (2â€², 2â€³) leading to the tank (1) and the atmosphere are blocked by the cutoff valves (11, 12).