초록 ▼

The filler neck includes a neck tube body having a fuel passage a guide member for guiding the fuel gun and a recirculation passage that connects the fuel tank and the neck tube body through a passage separate from the fuel passage, and that directs fuel vapors inside the fuel tank into the fuel pas

The filler neck includes a neck tube body having a fuel passage a guide member for guiding the fuel gun and a recirculation passage that connects the fuel tank and the neck tube body through a passage separate from the fuel passage, and that directs fuel vapors inside the fuel tank into the fuel passage. The neck tube body includes a housing chamber a primary connector section and a secondary connector section connected to the housing chamber and defining part of the recirculation passage. The guide member is a member that is housed in the housing chamber and includes a guide section for guiding the fuel gun into the fuel passage and a passage-defining section formed in the guide section, and partly defining the recirculation passage inside the housing chamber.

대표청구항 ▼

1. A filler neck for guiding fuel dispensed from a fuel gun into a fuel tank, the filler neck comprising: a neck tube body having a fuel passage; a guide member retained within the neck tube body for guiding the fuel gun; and a recirculation passage that connects the fuel tank with the neck tube bod

1. A filler neck for guiding fuel dispensed from a fuel gun into a fuel tank, the filler neck comprising: a neck tube body having a fuel passage; a guide member retained within the neck tube body for guiding the fuel gun; and a recirculation passage that connects the fuel tank with the neck tube body, the recirculation passage being configured to be separated from the fuel passage and directs fuel vapors inside the fuel tank into the fuel passage,wherein the fuel vapors mix with incoming liquid fuel, and the neck tube body includes (i) a housing chamber sealed off from the outside by a fuel cap; (ii) a primary connector section defining the fuel passage; and (iii) a secondary connector section connected to the housing chamber and defining part of the recirculation passage, andthe guide member is a member housed in the housing chamber and includes (i) a guide section for guiding the fuel gun into the fuel passage; and (ii) a passage-defining section formed with the guide section and partly defining the recirculation passage inside the housing chamber,wherein the neck tube body includes a catch claw on an inside wall of the neck tube body, and the guide member is secured within the housing chamber through partial engagement of the guide member with the catch claw,the primary connector section includes a passage-defining wall that defines an outlet passage constituting part of the recirculation passage,the neck tube body includes a base section that is formed in a lower part of the primary connector section and that decreases in diameter from the primary connector section and connects with the secondary connector section, wherein the base section includes an upright wall that defines a communicating chamber connecting the recirculation passage with the outlet passage, andthe passage-defining section includes a sealing plate that blocks off an upper opening of the communicating chamber, wherein the communicating chamber connects the recirculation passage with the outlet passage. 2. The filler neck in accordance with claim 1, wherein the passage-defining wall is integrally formed with the passage-defining section. 3. A filler neck for guiding fuel dispensed from a fuel gun into a fuel tank, the filler neck comprising: a neck tube body having a fuel passage; a guide member retained within the neck tube body for guiding the fuel gun; and a recirculation passage that connects the fuel tank with the neck tube body, the recirculation passage being configured to be separated from the fuel passage and directs fuel vapors inside the fuel tank into the fuel passage,wherein the fuel vapors mix with incoming liquid fuel, and the neck tube body includes (i) a housing chamber sealed off from the outside by a fuel cap; (ii) a primary connector section defining the fuel passage; and (iii) a secondary connector section connected to the housing chamber and defining part of the recirculation passage, andthe guide member is a member housed in the housing chamber and includes (i) a guide section for guiding the fuel gun into the fuel passage; and (ii) a passage-defining section formed with the guide section and partly defining the recirculation passage inside the housing chamber,wherein the primary connector section includes a passage-defining wall that defines an outlet passage constituting part of the recirculation passage,the neck tube body includes a base section that is formed in a lower part of the primary connector section and that decreases in diameter from the primary connector section and connects with the secondary connector section, wherein the base section includes an upright wall that defines a communicating chamber connecting the recirculation passage with the outlet passage, andthe passage-defining section includes a sealing plate that blocks off an upper opening of the communicating chamber, wherein the communicating chamber connects the recirculation passage with the outlet passage. 4. A filler neck for guiding fuel dispensed from a fuel gun into a fuel tank, the filler neck comprising: a neck tube body having a fuel passage; a guide member retained within the neck tube body for guiding the fuel gun; and a recirculation passage that connects the fuel tank with the neck tube body, the recirculation passage being configured to be separated from the fuel passage and directs fuel vapors inside the fuel tank into the fuel passage, wherein the fuel vapors mix with incoming liquid fuel, and the neck tube body includes (i) a housing chamber sealed off from the outside by a fuel cap; (ii) a primary connector section defining the fuel passage; and (iii) a secondary connector section connected to the housing chamber and defining part of the recirculation passage, andthe guide member is a member housed in the housing chamber and includes (i) a guide section for guiding the fuel gun into the fuel passage; and (ii) a passage-defining section formed with the guide section and partly defining the recirculation passage inside the housing chamber,wherein the primary connector section includes a passage-defining wall that defines an outlet passage constituting part of the recirculation passage,the neck tube body includes a base section that is formed in a lower part of the primary connector section and that decreases in diameter from the primary connector section and connects with the secondary connector section, andthe passage-defining section includes an inverted cup shape that is positioned resting on an upper face of the base section, wherein the passage-defining section is configured to define a communicating chamber that connects the recirculation passage with the outlet passage.