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TJ20 Turbojet Engine

Small turbojet engine with the technology of "big" engines. It consists of a single-stage radial compressor, radial and axial diffuser, annular combustion chamber, and single-stage axial turbine. 

It reaches up to 210 N thrust with the weight less than 2.1 kg. Engine bearings are lubricated with the mixture of fuel and 3% of oil. The engine is controlled by a digital electronic system integrated in the engine together with fuel pump and two electromagnetic valves. Starting is electrical. Spark plug is built in the jacket of the combustion chamber. Engine clamp and intake screen can be ordered as optional accessories.

Dimensions and weight
Engine length316 mm
Outside diameter121mm
Weight 2.1kg
Main parameters
Take-off Thrust max 5min)210 N47.2 lbf
Verified longitudinal overload+/- 20 G
Operating altitude0 - 6000 m0 - 20,000 ft
Flight speed range < Mach 0.6
Power supply 12 v
Specific fuel consumption* =< 0.165 kg/Nh=< 1.47 lb/lbf/hr
Fuel consumption min. (idle)126.6 ml /min4.26 oz/min
Fuel consumption max.650.0 ml/min.21.98 oz/min

* (SFC at max. thrust)

Fuel JET A–1 or equivalent with 3 % turbine oil 

PBS_TJ20_01.jpg
PSB TJ20, with courtesy of PBS
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PBS TJ20, with courtesy of PBS
PBS_TJ20_03.jpg
Paris Airshow 06.2013, Photo : Philippe BEZARD
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Paris Airshow 06.2013, Photo : Philippe BEZARD
PBS_TJ20_04.jpg
Paris Airshow 06.2013, Photo : Philippe BEZARD
PBS_TJ20_06.jpg
Paris Airshow 06.2013, Photo : Philippe BEZARD