Currently
being phased out of commercial production due to its poor fuel
efficiency and loud operation.
In
the turbojet the air intake is compressed and rammed into the
combustion chamber by a compressor, which is driven by a turbine
wheel. The turbine in turn is driven by the momentum of hot exhaust
gases.
In the Above,
picture you can see that there are after-burn injectors that provide
additional thrust. On the other hand fuel consumption is almost
doubled. To my knowledge the Concord is the only airliner that has
afterburners. (The concord is one of the few aircraft that can sustain
supersonic flight without having to use its after burners).
Turbo jets
produce large amounts of thrust by moving a lot of air but exhaust as
well. Temperatures behind turbo jets can reach in upwards of 600C.
As I mentioned
for the most part turbojets engines are old technology. They can be
easily recognized by the long cigar shaped engine pods on this Boeing
737-200 (beside)
