Ventilation system for providing ventilation to fuel tank in internal combustion engine of vehicle, has vent pipes joined in combustion engine supply line, where engine supply line is connected with air intake of combustion engine

摘要

The system (10) has a reversing valve (26) with three terminals and two switching positions, and a small adsorption container (16) with a supply line (161) and a vent pipe (162). A combustion engine supply line (141) comprises a fuel tank vent pipe (122), which is indirectly connected with a fuel tank (12) at an end and the reversing valve at another end. The vent pipe of the small adsorption container and another vent pipe (182) of a large adsorption container (18) are joined in the supply line, where the supply line is connected with an air intake of a combustion engine (14). Independent claims are also included for the following: (1) a vehicle comprising a fuel tank (2) a method for controlling ventilation of a fuel tank of a combustion engine.