Air intake structure of engine and motorcycle having the same

An air intake structure of an engine for a supercharged vehicle comprising

• a supercharger supercharging air;
• an air intake chamber receiving the air supercharged by the supercharger and sending the supercharged air to the engine;
• a throttle body connected to an air intake downstream side of the air intake chamber;
• an air intake port of a cylinder head of the engine connected to an air intake downstream side of the throttle body;
• a liquid cooling type intercooler provided in the air intake chamber;
• wherein the vehicle is a motorcycle, and
• the supercharger has an air intake inlet opened in a vehicle width direction such that the supercharger takes in air from the air intake inlet to rotate the air around an axis extending in the vehicle width direction, and compresses the air by its centrifugal force, and the compressed air extends in the air intake chamber in the vehicle width direction and flows through the intercooler in a front-back direction of the motorcycle.

An air intake structure of a supercharged engine for a vehicle comprising

• a supercharger supercharging air;
• an air intake chamber receiving the air supercharged by the supercharger and sending the supercharged air to the engine;
• a throttle body connected to an air intake downstream side of the air intake chamber;
• an air intake port of a cylinder head of the engine connected to an air intake downstream side of the throttle body;
• a liquid cooling type intercooler provided in the air intake chamber;
• and
• a radiator,
• wherein
• intake air flows in the air intake chamber in a front-back direction of the motorcycle;
• the intercooler is a plate type cooling device having a plurality of plates which each incorporate a cooling liquid passage therein, the plates being stacked so as to be spaced from each other in a direction perpendicular to an air intake direction such that cooling air passes through between the plates, the plates extending in a vehicle width direction, and the cooling liquid passages being connected to an inlet and an outlet of the intercooler;
• the inlet of the intercooler is arranged at one side of the intercooler in the vehicle width direction, the outlet of the intercooler is arranged at an opposite side of the intercooler in the vehicle width direction;
• and
• an inlet of the radiator is arranged at one side of the radiator in the vehicle width direction, and an outlet of the radiator is arranged at an opposite side of the radiator in the vehicle width direction;
• and
• the vehicle is a motorcycle.