| 摘要 |
PURPOSE:To enable the easy treatment of generated vapors by providing a suction pipe at the sub-chamber side of a tank body and fitting the suction pipe with a valve closing when a liquid level has dropped below the bulge of the tank body. CONSTITUTION:When fuel is jetted from a nozzle 11, negative pressure occurs within a chamber 10 and vapors generated in an upper space 'S2' at the sub- chamber side are sucked into the chamber 10. Concurrently therewith, vapors flow into an upper space 'S1'. And when a liquid level has dropped below a bulge 2, a communication hole 16 is closed and a suction effect for vapors from a suction pipe 14 is interrupted, thereby causing a liquid flow toward a main chamber 4 due to the effect of an ejector 9. Consequently, it becomes possible to transfer vapors in the upper space 'S2' at the side of the sub- chamber 5 to the upper space 'S1' at the side of the main chamber 4, and treat vapors easily. |
