Disclosed is a vent system (6) comprising a vent stack (2) for venting a tank fluid from a fuel tank (3) that is external to the vent stack (2), during fuelling of the fuel tank (3). The vent stack (2) comprises: a conduit (21) comprising a conduit inlet (21a) and a conduit outlet (21b), the conduit outlet (21b) opening to atmosphere (6) external to the conduit (21). The vent stack (2) also comprises an opening (23) into the conduit (21) between the conduit inlet (21a) and the conduit outlet (21b). The opening (23) is fluidically connected, or connectable, to the fuel tank (3) so that the tank fluid from the fuel tank (3) flows through the opening (23) to the conduit outlet (21b), in use. The vent stack (2) also comprises a fluid mover (25) operable to cause a mixer fluid receivable in the conduit inlet (21a) to flow through the conduit (21) towards the conduit outlet (21b), thereby to mix the mixer fluid with the tank fluid in the conduit (21), upstream of the conduit outlet (21b).
VENT SYSTEM
ENTLÜFTUNGSSYSTEM
SYSTÈME D'ÉVENT
2025-02-26
Patent
Electronic Resource
English