FUEL SUPPLY DEVICE
To reduce the number of part items and assembling man-hours by an integration effect of an annular collar and an upper case, and to suppress the come-off of irregularity engagement parts of the upper and lower cases from each other, in a fuel supply device in which a seal ring is interposed between...
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Zusammenfassung: | To reduce the number of part items and assembling man-hours by an integration effect of an annular collar and an upper case, and to suppress the come-off of irregularity engagement parts of the upper and lower cases from each other, in a fuel supply device in which a seal ring is interposed between opposing peripheral faces of an outer cylinder part erected on a tank bottom wall and surrounding a tank opening, and an inner cylinder part surrounded by the outer cylinder part at an entire periphery being a part of an erecting wall extending to the inside of a tank from a bottom wall part of the lower case, and the seal ring is gripped between the annular collar which is fit to an external peripheral face of the erecting wall and an upward step part arranged at the external peripheral face of the erecting wall at a lower part of the annular collar.SOLUTION: In a fuel supply device in which a seal ring 41 is gripped between an annular collar 27 fit to an external periphery of an erecting wall Wo, and an upward step part 28 arranged at an external periphery of the erecting wall Wo at a lower part of the annular collar 27, the annular collar 27 is integrally formed at an upper case 20.SELECTED DRAWING: Figure 2
【課題】タンク底壁に立設されてタンク開口を全周に亘り囲繞する外円筒部と、下部ケースの底壁部よりタンク内方側に延出する起立壁の一部であって外円筒部に全周に亘り囲繞される内円筒部との対向周面間にシールリングが介装され、そのシールリングが、起立壁の外周面に嵌合される環状カラーと、その環状カラーの下方で起立壁の外周部に設けた上向き段部との間に挟止される燃料供給装置において、環状カラーと上部ケースとの一体化効果により、部品点数と組立工数を削減可能とし、併せて、上,下部ケース相互の凹凸係合部の外れを抑制可能とする。【解決手段】シールリング41が起立壁Wo外周に嵌合される環状カラー27と、その環状カラー27の下方で起立壁Wo外周に設けた上向き段部28との間に挟持される燃料供給装置において、環状カラー27は、上部ケース20に一体に形成される。【選択図】 図2 |
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