Turbocharger (TC)

Fig 1: Identifying Exhaust Pipe And Charge Air Cooler (CAC)

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Turbocharger (TC) System

Courtesy of VOLVO CARS OF NORTH AMERICA.

The turbocharger (TC) system is designed to increase engine output. This is achieved by compressing the intake air in the turbocharger (TC). The system senses that more air in entering the cylinder and so injects more fuel. The cylinder is filled with more air and fuel than it could suck in. The pressure that occurs is called turbocharger (TC) boost pressure.

Exhaust gases pass through (1) to the turbocharger (TC) driving the rotor. They then pass out through exhaust pipe (2). Fresh air is sucked in through (3) and pressed through (4) via the charge air cooler (CAC) into the intake manifold.