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(11) | EP 0 090 155 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Propellant cartridge for a mortar projectile |
(57) Propellant and ignition cartridge (8) designed to be enclosed in a cartridge tube
(2) of a finned projectile (1). The walls (5) of the cartridge tube are provided with
a number of through holes (6) so as to permit the outflow of powder gases from powder
which has been ignited in the cartridge. The cartridge (8) has a casing (9) which
is dimensioned so as to burst in the centre of the said holes (6). The powder consists
of a group (16) of strips (17) which are held together in brush form. The pressure
of the gases from the powder during a period of 0.5-3 ms, preferably 1-2 ms, after
the said rupture of the casing (9) has taken place is greater than the «opening pressure"
at which rupture takes place. |