| 摘要 |
A ventilation device on a top wall of a fuel tank mounted on a motor vehicle includes an upper panel fixedly mounted on an inner surface of the top wall of the fuel tank and extending substantially horizontally, the upper panel having an opening vented to atmosphere. A middle panel is fixedly mounted on a lower surface of the upper panel, and a lower panel is fixedly mounted on a lower surface of the middle panel and has first and second openings communicating with an interior of the fuel tank. The lower and middle panels jointly define first and second passages, and the upper and middle panels jointly define a chamber. The first and second openings communicate with the first and second passages, respectively, and the middle panel has first and second through holes providing communication between the first and second passages and the chamber, the opening in the upper panel communicating with the chamber. The ventilation device is capable of effectively ventilating air and preventing fuel from leaking.
|
