| 摘要 |
PROBLEM TO BE SOLVED: To prevent an orifice from being clogged by foreign matters such as refuse or burrs by providing a filter preventing the intrusion of foreign matters into a communicating path in a gas-liquid separation chamber in a system communicating the gas- liquid separation chamber for separating gasoline vapor into a vapor phase and a liquid phase and a canister body with the communicating path. SOLUTION: A gas-liquid separation chamber structure 2 is connected to the side section of a canister body 1, the peripheral wall 18a of the main body section 18 of the gas-liquid separation chamber structure 2 is formed into a bottomed cylindrical shape, and its inside is formed into a gas-liquid separation chamber 20. A tank port 21 formed on the peripheral wall 18a of the main body section 18 is communicated to a fuel tank 2 3. A canister communicating path 26 constituted of a rise passage section 26a and a horizontal passage section 26b and provided with an orifice 27 in the middle is formed in the gas-liquid separation chamber 20, and it is communicated with the canister body 1. A filter 28 is provided on the upper end opening section 26c of the rise passage section 26a of the canister communicating path 26 to block the intrusion of foreign matters into the communicating path 26 to prevent the clogging of the orifice 27.
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