Fuel supply device

A fuel supply device for an internal combustion engine, the fuel supply device comprising:

• a fuel pipe configured to lead, to an injector, fuel introduced into the fuel pipe;
• an injector cup into which the injector is inserted, the injector cup including a peripheral wall;
• and
• a bracket configured to fix the fuel pipe to the internal combustion engine,
• the fuel pipe including a first side wall and a second side wall,
• the first side wall including a mounting surface to which the injector cup and the bracket are attached, and
• the second side wall being configured such that the injector cup and the bracket are not attached,
• the second side wall being configured to elastically deform when a pressure of the fuel is applied to the second side wall,
• the bracket includes a pair of rib portions attached to the mounting surface, a pair of extension portions respectively attached to the pair of rib portions and extending in an axial direction of the injector cup, and a fixed portion between respective ends of the pair of extension portions,
• the fixed portion configured to be attached to the internal combustion engine,
• the rib portions extend away from the extension portions in a direction perpendicular to the axial direction of the injector cup and the extension portions are perpendicular to the mounting surface,
• the mounting surface including a first end, a second end, and a centerline,
• the first end and the second end being one end and an opposite end of the mounting surface in the axial direction of the injector cup, the centerline being a virtual line placed at a center between the first end and the second end, and
• the injector cup being configured such that the peripheral wall extends at least from a position on a first-end side relative to the centerline in the mounting surface to a position on a second-end side relative to the centerline, and the peripheral wall is fixed to the mounting surface at a part of the mounting surface on the first-end side relative to the centerline and at a part of the mounting surface on the second-end side relative to the centerline.