the turbocharged direct injection or TDI
is a design of turbo diesel engines that
feature turbo charging in cylinder
direct fuel injection
this technology is proudly developed and
produced by the Volkswagen Group the TDI
engine used direct injection where a
fuel injector sprays atomized fuel
directly into the main combustion
chamber of each cylinder rather than the
pre combustion chamber prevalent and
older diesels which used in direct
injection the engine also uses forced
induction by way of a turbocharger to
increase the amount of air which is able
to enter the engine cylinders and most
TDI engines also feature an intercooler
to lower the temperature and therefore
increase the density of the charged or
compressed air from the turbo thereby
increasing the amount of fuel that can
be injected and combusted these in
combination allow for greater engine
efficiency and therefore greater power
outputs from a more complete combustion
process compared to indirect injection
while also decreasing emissions and
providing more torque than its non turbo
and non direct injection control engine
counterpart
similar technology has been used by
other automotive companies but TDI
specifically refers to these folks
bagging troop engines the reduced
material volume of the injection
injection diesel engine reduces heat
losses and thereby increases engine
efficiency at the expense of slightly
increased combustion noise a direct
injection engine is also easier to start
when cold due to more efficient placing
and usage of glow plugs TDI engines are
currently available in the following
models Polo sedan 1.6 TDI manual
transmission Jetta 2.0 TDI manual
transmission to go on 2.0 TDI automatic
transmission to ron 2.0 TDI DSG and
Tuareg 3.0 TDI v6 automatic transmission
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