Fiat and Cummins in court

Bumpyroad wrote:


I think you think incorrectly. how on earth could a capless system be better than one with a sealed cap?
bumpy

Easy, because the capless system is sealed but with two flaps, not just on cap. You guys keep thinking there is no seal with a capless design, but that is just not the case. Just because you can't see that second sealed flap does not mean it isn't there.

Say you pulled up to a fuel station while there was fine snow blowing like Grit was saying. You open your fuel door and remove the cap. BOOM, you are now exposing your fuel tank to all the contaminants of the air including fine snow until you stick the nozzle in. Even then, the filler neck is a lot bigger than the pump nozzle so you are still letting stiff in as you pump.

With the capless system, when you open your fuel door the first flap is keeping the fine snow out. You slide the nozzle past the first flap and the fuel tank is still sealed by the second flap that is another 6-8 inches down into the neck. The second flap opening is only big enough for a diesel pump nozzle to fit in so as you insert the nozzle it seals up the tank while you are pumping.

Here are a few images of the basics of how the capless system works.