| 摘要 |
<p>A fuel tank filter cap has superimposed compartments that are separated by partition walls and filled with fibrous material, the top wall of the uppermost compartment having an air vent and the partition walls having communication ports through them. Communication from the interior of the fuel tank to the air vent through the fibrous material filling the superimposed compartments is so tortuous that the escape of liquid fuel from the tank is virtually impossible, though vapours can freely leave the tank and air can readily enter it. Any liquid fuel that accumulates in the several superimposed compartments will collect in the bottom compartment when the engine stops and will drain through the drain hole (33).</p> |
