Abstract: There is provided an air cleaner configured to be disposed inside a vehicle body frame, the air cleaner including: an air cleaner case in which an intake chamber is formed; an intake air temperature sensor configured to detect an intake air temperature in the intake chamber; an inlet tube configured to take in air to the intake chamber; and an outlet tube configured to send out air from the intake chamber. The outlet tube has an upstream portion protruding into the intake chamber, and the upstream portion of the outlet tube has a peripheral wall formed with a through hole.

Abstract: There is provided an air cleaner configured to be disposed behind an engine and inside a vehicle body frame. The air cleaner includes: an air cleaner case in which an intake chamber is formed; an air filter that divides the intake chamber into a dirty side and a clean side; an inlet tube configured to take in air from a vehicle rear side to the dirty side; and an outlet tube configured to send air from the clean side to the engine. The inlet tube and the outlet tube are attached to an upper side of the air cleaner case, and an expansion portion is formed on a lower side of the air cleaner case, the expansion portion being formed by expanding the clean side further downward than the dirty side.

Abstract: There is provided an intake device, in which an air cleaner is disposed behind an engine and which is configured such that air is introduced from the air cleaner to the engine through an intake passage. The intake device includes: a pressure sensor configured to detect a pressure in the intake passage; a throttle body that forms an upstream side of the intake passage; and an intake pipe that forms a downstream side of the intake passage. An attachment portion to which the pressure sensor is attached is formed on an outer peripheral surface of the intake pipe.

Abstract: There is provided an air cleaner configured to be disposed inside a vehicle body frame, the air cleaner including: an air cleaner case in which an intake chamber is formed; an air filter disposed in the intake chamber; an inlet tube configured to take in air to the intake chamber; and an outlet tube configured to send out the air from the intake chamber. The inlet tube extends in a front-rear direction. The inlet tube has a bottom wall curved downward in a side view to form a concave curved portion below a discharge port of the inlet tube. The concave curved portion is formed with a drain hole.

Abstract: There is provided an air cleaner configured to be disposed inside a vehicle body frame, the air cleaner including: an air cleaner case in which an intake chamber is formed; an intake air temperature sensor configured to detect an intake air temperature in the intake chamber; an inlet tube configured to take in air to the intake chamber; and an outlet tube configured to send out air from the intake chamber. The outlet tube has an upstream portion protruding into the intake chamber, and the upstream portion of the outlet tube has a peripheral wall formed with a through hole.

Abstract: There is provided an air cleaner configured to be disposed behind an engine and inside a vehicle body frame. The air cleaner includes: an air cleaner case in which an intake chamber is formed; an air filter that divides the intake chamber into a dirty side and a clean side; an inlet tube configured to take in air from a vehicle rear side to the dirty side; and an outlet tube configured to send air from the clean side to the engine. The inlet tube and the outlet tube are attached to an upper side of the air cleaner case, and an expansion portion is formed on a lower side of the air cleaner case, the expansion portion being formed by expanding the clean side further downward than the dirty side.

Abstract: There is provided an intake device, in which an air cleaner is disposed behind an engine and which is configured such that air is introduced from the air cleaner to the engine through an intake passage. The intake device includes: a pressure sensor configured to detect a pressure in the intake passage; a throttle body that forms an upstream side of the intake passage; and an intake pipe that forms a downstream side of the intake passage. An attachment portion to which the pressure sensor is attached is formed on an outer peripheral surface of the intake pipe.

Abstract: To provide an intake system of an internal combustion engine that can improve rigidity of a throttle body by strengthening a connection between plural components having an intake passage and further stabilize the opening degree of the throttle body. An intake system of an internal combustion engine includes: a plurality of throttle body members, each having at least one intake passage; and a plurality of structural connectors that are provided on respective throttle body members and connect adjacent the throttle body members with each other. The plurality of structural connectors includes a pair of structural connectors that are connected with each other in directions different from each other.