To reduce production costs by decreasing the number of joints fitted to a fuel tank in a fuel supply structure of a saddle-riding type vehicle comprising an upstream-side fuel supply system which guides fuel from the fuel tank to the side of a fuel pump side, a downstream-side fuel supply system which guides fuel from the fuel pump to the side of a fuel injection valve, and a surplus fuel return system which returns surplus fuel from the downstream-side fuel supply system to the side of the fuel tank.SOLUTION: A fuel hose joint 116 having an insertion pipe part 116a formed to have a double-pipe structure formed by covering an inner pipe 117 with an outer pipe 118 and inserted into a fuel tank 15, a first connection pipe part 116b connecting with the inside of the inner pipe 117, and a second connection pipe part 116c connecting with the inside of the outer pipe 118 is fitted to the fuel tank 15. A fuel suction hose 95 is connected to one of the first and second connection pipe parts 116b, 116c, and a fuel return hose 100 is connected to the other of the first and second connection pipe parts 116b, 116c.SELECTED DRAWING: Figure 11
【課題】燃料タンクから燃料ポンプ側に燃料を導く上流側燃料供給系と、燃料ポンプから燃料噴射弁側に燃料を導く下流側燃料供給系と、下流側燃料供給系から余剰燃料を燃料タンク側に戻す余剰燃料戻し系とを備える鞍乗り型車両の燃料供給構造において、燃料タンクに取付けられるジョイントの個数を減少させて生産コストの低減を図る。【解決手段】内管117が外管118で覆われて成る二重管構造に形成されて燃料タンク15内に挿入される挿入管部116aと、内管117内に通じる第1接続管部116bと、外管118内に通じる第2接続管部116cとを有する燃料ホースジョイント116が燃料タンク15に取付けられ、燃料吸入ホース95が第1および第2接続管部116b,116cの一方に接続され、燃料戻しホース100が第1および第2接続管部116b,116cの他方に接続される。【選択図】 図11
FUEL SUPPLY STRUCTURE OF SADDLE-RIDING TYPE VEHICLE
鞍乗り型車両の燃料供給構造
2020-03-05
Patent
Electronic Resource
Japanese
IPC: | B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS |
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