FUEL TANK VENTING SYSTEM

摘要

The present invention involves a venting system for venting a gaseous fluid from a tank having an aperture and a fuel delivery module cover. The tank is made of a predetermined material. The venting system comprises a venting valve disposed within the aperture. The venting valve includes a valve body having a top portion and a neck portion extending from the top portion. The top portion is disposed outside the tank and is engaged thereto. The neck portion is disposed in the tank and has an index and a port extending from the neck portion. The port is formed below the index relative to the top portion. The port is in fluid communication with the valve when the valve vents the gaseous fluid. The venting system further includes a channel having first and second ends, wherein the first end connects to the port within the tank so that the venting valve is in fluid communication therewith when the valve vents the gaseous fluid. The second is attached to the fuel delivery module cover to allow the gaseous fluid in the tank to be vented therefrom. The venting system further includes a cover which is comprised of the same predetermined material and is welded to the tank to seal the valve between the cover and the tank.