The air chamber is made from aluminium and
receives pressurized air, cooled by the intercooler, and conveys
it directly to the cylinder head.A throttle body fitted to the air chamber
intake is controlled by the injection control unit. In order to limit engine shake during switching
off, the injection control unit controls the closure of the throttle,
while the throttle remains open under all other service condtiions. The spiral inlet manifolds give the air
the necessary (swirl) rotary motion for correct combustion.An excess pressure sensor Characteristic
of working principle 1060G pressure pump electric controlconnected
to the injection control unit, is fitted on the chamber.