“This increase in charge air density is accomplished on most modern diesel engine types by use of exhaust gas turbo-charging, in which a turbine wheel driven by exhaust from the engine is rigidly coupled to a centrifugal type air compressor.” According to this sentence, we can know that increases density, drives the compressor directly.
A.
a modern diesel engine, a turbine wheel
B.
a modem diesel engine, exhaust gases
C.
a compressor, an exhaust gas turbocharger
D.
a compressor, a turbine wheel