Canister vent valve mounting structure

A canister assembly comprising:

• a canister configured to adsorb fuel vapors produced inside a fuel tank including a first vent valve connecting section and at least one vehicle mounting portion;
• a canister vent valve configured to introduce outside air into the canister including a second vent valve connecting section that engages with the vent valve receiving section of the canister;
• and
• a sealing member being configured to seal a space between the first and second vent valve connecting sections when the first and second vent valve connecting sections are coupled together,
• one of the first and second vent valve connecting sections including a plurality of mating projections that are circumferentially spaced apart near the tip thereof, the other of the first and second vent valve connecting sections including a protrusion with a plurality of mating notches into which the mating projections are inserted, the mating projections and the mating notches being configured to mate with each other such that the protrusion engages the projection upon relative rotational movement of the first and second vent valve connecting sections,
• the canister and the canister vent valve including a rotation regulating structure configured to selectively retain the canister and the canister vent valve in at least two different angular positions relative to each other.

A canister vent valve mounting structure comprising:

• first and second vent valve connecting means for connecting a canister configured to adsorb fuel vapors produced inside a fuel tank with a canister vent valve configured to introduce outside air into the canister, the first and second connecting means being having complementary mating structures that are coupled together by a relative rotational movement;
• sealing means for sealing a space between the first and second vent valve connecting means when the first and the vent valve connecting means are coupled together;
• and
• rotation regulating means for selectively retaining the first and second vent valve connecting means in at least two different angular positions relative to each other.