초록 ▼

A vent module is adapted to be mounted in a top wall of a fuel tank to vent fuel vapor from the tank to a vapor recovery canister located outside the tank. An outer shell is positioned around the vent module to define a fuel vapor transfer passageway arranged to conduct liquid fuel droplets into a l

A vent module is adapted to be mounted in a top wall of a fuel tank to vent fuel vapor from the tank to a vapor recovery canister located outside the tank. An outer shell is positioned around the vent module to define a fuel vapor transfer passageway arranged to conduct liquid fuel droplets into a liquid fuel accumulation chamber. A fuel vapor transfer port is formed in the outer shell to admit fuel vapor into the fuel vapor transfer passageway. A fuel vapor inlet port is formed in the vent module to lie below the fuel vapor transfer port. Liquid fuel entrained in fuel vapor is shed as fuel vapor flows laterally from the fuel vapor transfer passageway into the vent module through the fuel vapor inlet port so that "demoisturized" fuel vapor flows into the vent module and liquid fuel droplets fall into the liquid fuel accumulation chamber.

대표청구항 ▼

A vent module is adapted to be mounted in a top wall of a fuel tank to vent fuel vapor from the tank to a vapor recovery canister located outside the tank. An outer shell is positioned around the vent module to define a fuel vapor transfer passageway arranged to conduct liquid fuel droplets into a l

A vent module is adapted to be mounted in a top wall of a fuel tank to vent fuel vapor from the tank to a vapor recovery canister located outside the tank. An outer shell is positioned around the vent module to define a fuel vapor transfer passageway arranged to conduct liquid fuel droplets into a liquid fuel accumulation chamber. A fuel vapor transfer port is formed in the outer shell to admit fuel vapor into the fuel vapor transfer passageway. A fuel vapor inlet port is formed in the vent module to lie below the fuel vapor transfer port. Liquid fuel entrained in fuel vapor is shed as fuel vapor flows laterally from the fuel vapor transfer passageway into the vent module through the fuel vapor inlet port so that "demoisturized" fuel vapor flows into the vent module and liquid fuel droplets fall into the liquid fuel accumulation chamber. in pipe moves together with the enclosing element, said apparatus further comprising: a second drain pipe capable of receiving the processing liquid drained through the first drain pipe connected to the drain port, wherein the positional relationship between the first drain pipe and the second drain pipe changes according to a movement of the enclosing element. 3. The processing apparatus according to claim 2, wherein one of the first and second drain pipes are movably received in the other, and wherein a length of parts of the first and the second drain pipe overlapping each other varies according to the movement of the enclosing element. 4. The processing apparatus according to claim 3, wherein the first drain pipe is received in the second drain pipe, and wherein the second drain pipe is provided with an exhaust port at a top portion thereof, the exhaust port being arranged so that, when the enclosing element is positioned at the first position, the exhaust port is positioned adjacent to a tip of the first drain pipe. 5. The processing apparatus according to claim 3, wherein the first drain pipe is received in the second drain pipe, said apparatus further comprising: a tube surrounding the first drain pipe, the tube being provided with a drain port at a bottom portion thereof and an exhaust port at a top portion thereof. 6. The processing apparatus according to claim 3, wherein the first and the second drain pipes are capable of engaging in a watertight fashion. 7. The processing apparatus according to claim 2 further comprising a drain receiving member configured to receive the processing liquid that falls from the drain pipes, wherein the drain receiving member is arranged so that, when the enclosing element is positioned at the second position, the drain receiving member is located below the first drain pipe. 8. The processing apparatus according to claim 2, wherein the first drain pipe is connected to the second drain pipe when the enclosing element is positioned at the first position and is disconnected from the second drain pipe when the enclosing element is positioned at the second position. 9. The processing apparatus according to claim 2, wherein the first and the second drain pipes are connected by a stretchable bellows. 10. The processing apparatus according to claim 1, wherein the enclosing element is a tubular having an axis extending in a horizontal direction and in a moving direction of the enclosing element. 11. The processing apparatus according to claim 10, wherein an inner surface of a bottom portion of the enclosing element is sloped down from the first end toward the second end. 12. The processing apparatus according to claim 1, wherein the enclosing element includes; a cylindrical part having an axis extending in a horizontal direction and in a moving direction of the enclosing element; and a channel arranged at a lowermost portion of the cylindrical part and extending between the first end and the second end, the channel having a bottom wall sloped down from the first end toward the second end. 13. The processing apparatus according to claim 1, wherein an inner surface of a bottom portion of the enclosing element is sloped down from the first end toward the second end. 14. The processing apparatus according to claim 13, wherein the enclosing element has a shape resembling a frustum formed by truncating an oblique circular cone, the oblique cone having a first generator located at an uppermost portion of the cone and extending horizontally and a second generator located at a lowermost portion of the cone and sloped down from the first end toward the second end. 15. The processing apparatus according to claim 1 further comprising a second enclosing element capable of moving between a first position where the second enclosing element surrounds the holder and forms a second closed processing chamber in which the object is processed and a second position where the second enclosing ele ment is withdrawn from around the holder, the second enclosing element being capable of enclosing the first enclosing element. 16. The processing apparatus according to claim 1, wherein the object has a shape of a circular disc, and wherein, as viewed in a direction of a center axis of the disk when the object is held by the holder, the nozzle is arranged in the processing chamber in a region above a horizontal diametrical line passing a center of the disk and outside of a vertical line passing intersection of the horizontal diametrical line and a periphery of the object. 17. The processing apparatus according to claim 1, wherein the enclosing element is a tubular member having an axis extending in a substantially horizontal direction and in a moving direction of the enclosing element, is sloped down, at an angle of not less than 3 degrees with respect to a horizontal plane, from the first end toward the second end. 18. A processing apparatus for processing an object with a processing liquid, comprising: a holder adapted to hold the object; and an enclosing element adapted to surround the holder to define a closed processing chamber, in which the object held by the holder is processed; wherein the enclosing element includes: a cylindrical body having a center axis extending in a horizontal direction; and a channel-forming member provided at a lowermost portion of the cylindrical body to define a channel into which the processing liquid is collected, the channel extending in an axial direction of the cylindrical body, and the channel-forming member having a first end and a second end and having a bottom sloping downward toward the second end, and wherein the enclosing element is provided with a drain port arranged adjacent to the second end of the channel to drain the processing liquid from the processing chamber. 19. The processing apparatus according to claim 18, wherein the object has a shape of a circular disk, said apparatus further comprising: a nozzle that supplies the processing liquid into the processing chamber, wherein, as viewed in a direction of a center axis of the disk when the object is held by the holder, the nozzle is arranged in the processing chamber in a region above a horizontal diametrical line passing a center of the disk and outside of a vertical line passing an intersection of the horizontal diametrical line and a periphery of the object. 20. The apparatus according to claim 18, wherein an inclination of the bottom of the channel-forming member is 3 to 10 degrees. 21. The apparatus according to claim 18, wherein an inclination of the second generator of the channel-forming member is 3 to 10 degrees. 22. A processing apparatus for processing an object with a processing liquid, comprising: a holder adapted to hold the object; and an enclosing element adapted to surround the holder to define a closed processing chamber, in which the object held by the holder is processed; wherein: the enclosing element includes a body having an oblique, circular, truncated cone shape, the body having a first circular end of relatively small diameter and a second circular end of a large diameter relative to the first circular end; the body is configured and arranged so that a first generator of the cone located at an uppermost portion of the body extends in a horizontal direction, and a second generator of the cone located at an lowermost portion of the body slopes downward from the first end toward the second end; and the enclosing element is provided with a drain port arranged adjacent to a lowermost portion of the second end of the body to drain the processing liquid from the processing chamber. 23. The apparatus according to claim 22, wherein the object has a shape of a circular disk, said apparatus further comprising: a nozzle that supplies the processing liquid into the processing chamber, wherein, as viewed in a direction of a center axis of the disk when the object is held by the hol der, the nozzle is arranged in the processing chamber in a region above a horizontal diametrical line passing a center of the disk and outside of a vertical line passing an intersection of the horizontal diametrical line and a periphery of the object.