Pulsed detonation engine

A pulsed detonation engine supplied cyclically with a combustible charge fed into the combustion chamber (5) of a flame tube (2) with a transverse base (3) by a supply device (6), wherein:

• said transverse base (3) of the flame tube (2) is mounted so that it can move with respect to the latter in order to be able to occupy two boundary positions, a first position corresponding to the detonation phase of the combustible charge in the combustion chamber (5) of said tube and a second position corresponding to the phase wherein the combustible charge is supplied to said chamber;
• at least one supply opening (7) for said combustible charge is provided in the lateral wall (4) of said tube, this opening being closed off and separated from said combustion chamber (5) by said movable base (3) when the latter is occupying its first position and being in fluid communication with said chamber (5) when said movable base (3) is occupying its second position;
• and
• in said first position, said transverse movable base (3) is secured to said tube (2) by releasable locking means (9;
• 42, 43).