| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cut-off valve having large and small two seal parts which improve aligning performance of a lower float and an upper float.SOLUTION: A fuel cut-off valve includes: a case having a first opening communicated with the inside of a fuel tank and a second opening communicated with a canister; a lower float that is provided so as to move up and down inside the case and has a first valve member above the lower float; an upper float that is provided so as to move up and down above an upper part of the lower float and has a second valve member and a third opening communicated with the canister; a first valve seat provided on the upper float, on which the first valve member abuts to close off the third opening; a second valve seat on which the second valve member abuts to close off the second opening. The upper float includes: a mounting member extending downward; and a guide member. The lower float includes: an locking member to be locked with the mounting member; and a guide part that guides to the guide member. The core shift amount of the upper float is regulated by engaging the locking member with the mounting member, and guiding the guide member to the guide part. |
