| abstract |
The invention relates to a device (8) for dispensing a liquid additive in a fuel circulation circuit for an internal combustion engine, comprising a reservoir (12) of liquid additive for diffusing an additive in the fuel circulation circuit. fuel by means of a channel (16) distribution characterized in that it comprises an enclosure (22) of additive communicating with the fuel circulation circuit and at least one wall (32) movable and sealed between said enclosure additive and the additive reservoir ensuring on the one hand a tight separation and on the other hand maintaining an identical pressure between the additive in the additive tank and the fuel in the additive enclosure. |