|
|
 |
HDi is the system of DIRECT injection of diesel
oil developed by the PSA Peugeot Citroën Group.
This system is based on heavy injection pressure,
in the range of 1,600 to 2,000 bars. The injectors
are fed diesel oil by a “shared ramp”,
more commonly called a “common rail”.
The “hydraulic” operation is the
same in racing as in mass-produced models.
The high-pressure pumps – there are 2 for
the V12, one for each bank of cylinders –
must be adjusted to the flow of diesel required
to feed the motor.
The injectors are optimised in terms of shape
and the direction of the diesel jets.
The competition motor requires adaptation of
the “mechanical” aspects, particularly
in seeking to reduce as much as possible the various
components of the system (high-pressure pumps,
common rails, injectors), while remaining capable
of bearing the constraints of temperature and
vibrations that are different from the mass-produced
model.
|
 |
|
|
|
 |
|
|
