Engine

An engine wherein it comprises:

• an engine body comprising a cylinder head and a cylinder block;
• an intake passage part attached to the engine body;
• and
• a fuel system component disposed between the engine body and the intake passage part,
• wherein the intake passage part is disposed on a vehicle forward side of the engine body when mounted to a vehicle, and wherein the intake passage part comprises:
• a fuel system component-corresponding portion located in a zone overlapping the fuel system component when viewed from the vehicle forward side and a brittle portion located adjacent to the fuel system component-corresponding portion and having a lower rigidity than the fuel system component-corresponding portion.

An engine wherein it comprises:

• an engine body comprising a cylinder head and a cylinder block;
• an intake passage part attached to the engine body;
• and
• a fuel pipe provided along the intake passage part at a position between the engine body and the intake passage part,
• wherein the intake passage part is disposed on a vehicle forward side of the engine body when mounted to a vehicle,
• wherein a portion of the intake passage part on the side of the fuel pipe has:
• a plurality of ribs provided at a position overlapping the fuel pipe when viewed from the vehicle forward side so as to provide a higher rigidity than a surrounding region, and formed to intersect with each other;
• and a butting portion protruding from a position where the plurality of the ribs intersect with each other toward the engine body, and
• wherein the butting portion is provided at a position that does not overlap the fuel pipe when viewed from the vehicle forward side.

An engine wherein it comprises:

• an engine body comprising a cylinder head and a cylinder block;
• an intake passage part attached to the engine body;
• and
• a fuel system component disposed between the engine body and the intake passage part,
• wherein the intake passage part comprises an inlet duct extending substantially parallel in the engine output shaft direction,
• wherein the inlet duct comprises a first flange provided at one end of the inlet duct for connecting to another component of the intake passage part, a second flange provided at the other end of the inlet duct for connecting to a valve for controlling an amount of intake air to be supplied to the engine body and a third flange provided on an upper end of a peripheral surface of the inlet duct for connecting to further another component of the intake passage part,
• wherein the third flange is connected to the second flange,
• wherein the inlet duct is further disposed on a vehicle forward side of the engine body when mounted to a vehicle and located in a zone overlapping the fuel system component when viewed from the vehicle forward side,
• wherein the inlet duct further comprises a fuel system component-corresponding portion on a surface facing the engine body with ribs extending to the first flange and a brittle portion located adjacent to the fuel system component-corresponding portion, arranged at a given range from the second flange along a longitudinal direction of the inlet duct on the surface facing the engine body and having a lower rigidity than the fuel system component-corresponding portion.