Turbocharger

A turbocharger (11) according to the invention is characterized by including a motor (11b) that can rotationally drive a turbine/compressor (11a), a turbocharger housing (11c) in which the motor (11b) is mounted, a lead-in passage (25) one end of which is connected to the housing (11c), and air flow generation means (11a) that generates, in the lead-in passage (25), an air flow directed toward the inside of the housing (11c). This turbocharger (11) makes it possible to cool the motor (11b) in a simple manner, and to prevent a reduction in the efficiency of the motor (11b).