PROBLEM TO BE SOLVED: To provide a fuel tank structure capable of improving fuel economy with a simple configuration.SOLUTION: A fuel tank structure includes: a fuel tank 10 having a storage part 14 for storing fuel; a canister 40; first piping 38 for connecting the storage part 14 with the canister 40; a first opening and closing valve 42 for opening and closing the first piping 38; a filler pipe 18 having an oil supply port 18A; second piping 44 for connecting the filler pipe 18 with the canister 40; a second opening and closing valve 46 for opening and closing the second piping; a pressure sensor 48 for detecting a pressure in the storage part 14; a fuel pump 30 for supplying the fuel GS in the storage part 14 to an engine; and a control part 36 for opening the first opening and closing valve 38 so as to allow movement of evaporated fuel from the storage part 14 to the canister 40 during oil supply, and closing the first opening and closing valve 38 except during oil supply, and opening the second opening and closing valve 46 when the pressure in the storage part 14 detected by the pressure sensor 48 is equal to or lower than a prescribed pressure which is lower than the atmospheric pressure.SELECTED DRAWING: Figure 1
【課題】簡易な構造で燃費を向上させることができる燃料タンク構造を得る。【解決手段】燃料が収容される収容部14を備えた燃料タンク10と、キャニスタ40と、収容部14とキャニスタ40とを連結する第1配管38と、第1配管38を開閉させる第1開閉弁42と、給油口18Aを備えたフィラーパイプ18と、フィラーパイプ18とキャニスタ40とを連結する第2配管44と、第2配管を開閉させる第2開閉弁46と、収容部14内の圧力を検知する圧力センサ48と、収容部14内の燃料GSをエンジンへ送給する燃料ポンプ30と、給油時に第1開閉弁38を開弁させて収容部14からキャニスタ40への蒸発燃料の移動を許容すると共に、給油時を除いて第1開閉弁38を閉弁させ、かつ、圧力センサ48が検知した収容部14内の圧力が大気圧よりも低い所定の圧力以下になると第2開閉弁46を開弁させる制御部36と、を有する。【選択図】図1
FUEL TANK STRUCTURE
燃料タンク構造
2017-02-02
Patent
Electronic Resource
Japanese
IPC: | F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |