Power unit

A utility vehicle comprising:

• a prime mover;
• a belt continuously variable transmission comprising a drive pulley, a driven pulley, a belt wound around the drive pulley and the driven pulley, and a housing forming an accommodation space in which the belt is disposed, the belt continuously variable transmission being configured to change a speed of rotation produced by drive power output from the prime mover;
• an intake duct connected to the housing;
• an exhaust duct connected to the housing;
• and
• a temperature sensor, wherein
• one of the drive pulley and the driven pulley includes a sheave with an impeller;
• the belt continuously variable transmission further comprises an opening that faces the impeller such that a rotation of the impeller causes air to flow from the opening toward the belt;
• the temperature sensor is configured to detect a temperature of the air downstream of the opening;
• the housing includes a dividing wall dividing the accommodation space into a first flow passage and a second flow passage, the first flow passage communicating with an intake passage of the intake duct, the second flow passage communicating with an exhaust passage of the exhaust duct, the second flow passage accommodating the drive pulley, the driven pulley, and the belt;
• the dividing wall is provided with an opening between the first flow passage and the second flow passage;
• and
• the temperature sensor is configured to detect a temperature of air in the second flow passage.