FEEDER OF INTAKE PIPE OF INTERNAL COMBUSTION ENGINE WITH STEAM EXISTING IN SPACE OF FUEL TANK

摘要

PURPOSE: To provide a device capable of easily carrying out tests in respect to sealing performance of the device between a shutoff valve and a fuel tank and avoiding damages caused by an excess pressure or a negative pressure in the system when the device fails. CONSTITUTION: In a device for feeding vapors present in a free space of a fuel tank into an intake manifold of an internal combustion engine, the free space of the fuel tank and the intake manifold of the internal combustion engine are connected by a line in which an activated carbon container and a stop valve are connected in series, and the activated carbon container is connected with the atmosphere by a vent line that can be closed by a vent line valve 11 comprising an excess pressure valve 12 and a vacuum valve 13.