Marcel Armengaud studied gas turbines until 1910, reaching promising conclusions. He did not materialize any operational aircraft engine.

From appendix A6/6: Now we have found a picture of this engine in an old book that gives us an idea of how it was.

"Armengaud gas turbine"

-References:
A, Fuel injector.
B, Compressed air inlet.
C, Spark-plug.
G, Diffuser for combustion chamber.
E y F, fastening bolts.
H, Bernoulli nozzle.
K, Turbine