Air intake device and air intake control valve

An air intake device comprising:

• a valve body which includes a rotating shaft;
• a bearing member which rotatably supports the rotating shaft of the valve body;
• and an air intake port which includes a concave portion on which the bearing member is disposed, wherein the bearing member includes a positioning portion for positioning the bearing member with respect to the concave portion of the air intake port, a plurality of facing surfaces which extend from the positioning portion along the concave portion of the air intake port, said facing surfaces facing the concave portion of the air intake port, and a plurality of protruding portions which protrude toward the concave portion of the air intake port from the facing surfaces and seal a gap, said gap existing between the facing surfaces and the concave portion except at the protruding portions, and wherein the protruding portions of the bearing member, in a view along a direction in which the rotating shaft of the valve body extends, are provided at a position overlapping the valve body at the time of closing the valve body.