To provide a fuel supply device of an engine capable of securing safety against collision while improving workability.SOLUTION: A fuel supply device of an engine including a fuel pump 33 disposed on a rear part of a left side wall portion of the engine 1 in which a cylinder arrangement direction is determined in a vehicle body longitudinal direction, further has: suction piping 60 extended in a longitudinal direction, connected to a suction side of the fuel pump 33 at one end portion, and connectable to a prescribed external negative pressure source at the other end portion, the suction piping 60 capable of being closed by a cap 63 at the other end portion; and a check valve 70 disposed on the middle of the suction piping 60 for allowing fuel flow to a suction direction by the external negative pressure source and allowing and limiting the fuel flow to an anti-suction direction. The check valve 70 has a throttle passage 73 for allowing the fuel flow to the anti-suction direction.SELECTED DRAWING: Figure 4
【課題】作業性を向上しつつ衝突安全性を確保することができるエンジンの燃料供給装置を提供する。【解決手段】気筒配列方向が車体前後方向に設定されたエンジン1の左側壁部の後側部分に燃料ポンプ33を備え、前後に延びると共に一端部が燃料ポンプ33の吸入側に接続され且つ他端部が所定の外部負圧源に接続可能な吸引配管60であって、他端部がキャップ63によって閉塞可能な吸引配管60と、吸引配管60の途中部に外部負圧源による吸引方向への燃料流動を許容すると共に反吸引方向への燃料流動を許容し且つ制限する逆止弁70とを有し、逆止弁70は、反吸引方向への燃料流動を許容するための絞り通路73を有している。【選択図】 図4
FUEL SUPPLY DEVICE OF ENGINE
エンジンの燃料供給装置
2021-04-01
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 / F16K VALVES , Ventile |