PROBLEM TO BE SOLVED: To stabilize a fuel supply quantity when a full tank is full.SOLUTION: A breather pipe 20A is provided that is mounted in a fuel tank 10A, and has an exhaust port 23 at a lower end opened to the inside of the fuel tank 10A. The breather pipe 20A comprises: a pipe body part 21 in which the exhaust port 23 is formed; a wave prevention part 31A which is formed in a cylindrical shape extending from a position lower than the exhaust port 23 to a position higher than the exhaust port 23 and encloses a lower end of the pipe body part 21 while leaving an interval 36 between the wave prevention part and the lower end; a narrow ventilation part 33A which is formed in an area higher than at least the exhaust port 23, of the wave prevention part 31A and causes the outside of the wave prevention part 31A and the exhaust port 23 to communicate with each other; and a defoaming part 34 which is formed in a lower end surface of the wave prevention part 31A, permits the passing of fuel F and comes in contact with a bubble B of the fuel F to defoam the bubble B.SELECTED DRAWING: Figure 2
【課題】満タン時の燃料の給油量を安定させる。【解決手段】燃料タンク10Aに取り付けられ、下端部の排気口23を燃料タンク10A内に開口させたブリーザパイプ20Aであって、排気口23が形成されたパイプ本体部21と、排気口23より低い位置から排気口23より高い位置に亘って筒状に形成され、パイプ本体部21の下端部を間隔36を空けて包囲する防波部31Aと、防波部31Aのうち少なくとも排気口23より高い領域に形成され、防波部31Aの外部と排気口23とを連通させる狭小通気部33Aと、防波部31Aの下端面に形成され、燃料Fの通過を許容し、且つ燃料Fの気泡Bを接触させることで消滅させる消泡部34とを備えている。【選択図】図2
BREATHER PIPE AND FUEL TANK
ブリーザパイプ及び燃料タンク
08.08.2016
Patent
Elektronische Ressource
Japanisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |
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