Abstract: A capless fuel filler device includes an anti-contamination seal mounted upon an external portion of a fuel filler passage extending through the device. An anti-contamination plug may selectively be inserted into the combination passage so as to sealingly engage the anti-contamination seal. A contaminant drain leading from the valve body's fuel and nozzle passage serves to not only remove liquid contaminants from the fuel and nozzle passage, but also to mitigate any incidental buildup of vacuum within the fuel tank.

Abstract: A capless fuel filler system has lower and upper sealing doors. The upper sealing door prevents water, water vapor, dust, etc. from entering into the space between the lower and upper doors. In prior systems with one sealing door a drain is provided to remove water (either directly entering or condensed water vapor), dust, or excess fuel drips from fueling just upstream of the lower door. By providing two sealing doors, water and dust cannot access the lower door. Although some fuel may puddle upstream of the lower door after a fueling event, the fuel is trapped, with no drain to the exterior, between lower and upper doors. If such fuel evaporates, it causes the lower door to open and vents the fuel vapors to the fuel tank, a desirable disposition for the vapors. The two sealing doors are contained in separate components to facilitate interchangeability and serviceability.

Abstract: A fuel type information collar is provided. The fuel type information collar is configured to engage an outer perimeter of a fuel tank filler pipe assembly of an automotive vehicle. It may include an inner perimeter defining an aperture configured to engage the outer perimeter of the fuel tank filler pipe assembly. It may additionally include a top surface including indicia of fuel type information for indicating type of fuel to be used by the automotive vehicle. It may further include a plurality of radial finger cuts angularly spaced around the inner perimeter, the plurality of radial finger cuts forming a plurality of fingers that engage the outer perimeter of the fuel tank filler pipe assembly.

Abstract: A fuel filler closure device for an automotive vehicle includes a valve body adapted for mounting to a fuel filler pipe and having a filler passage. An access door mounted within the valve body has an open position allowing placement of a fuel nozzle within the filler passage and a closed position for blocking insertion of a filler nozzle. The locking mechanism selectively permits the access door to move from the closed position to the open position. The locking mechanism may include either a manual locking device, or an electronic or other type of remote lock which will be responsive to a vehicle condition.

Abstract: A capless fuel filler device includes an anti-contamination seal mounted upon an external portion of a fuel filler passage extending through the device. An anti-contamination plug may selectively be inserted into the combination passage so as to sealingly engage the anti-contamination seal. A contaminant drain leading from the valve body's fuel and nozzle passage serves to not only remove liquid contaminants from the fuel and nozzle passage, but also to mitigate any incidental buildup of vacuum within the fuel tank.