| 摘要 |
A fuel shut off valve is provided to prevent backflow of fuel by forming a double sealing structure with first and second opening/closing units. A fuel shut off valve comprises: a valve case connected with upper(10a) and lower(10b) cases to be attached and detached, a first opening/closing unit mounted rotatably only in a fuel injection direction in an upper end of the lower case, a second open/close unit mounted in a direction perpendicular to fuel flow inside the lower case at regular interval with the first opening/closing unit and a return unit connecting the first and second opening/closing units to be interlocked to each other, which returns the units to an original position.
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