BRIEF DESCRIPTION OF THE DRAWINGS
Further details, features and advantages will become evident from the following description of two exemplary embodiments, which are illustrated in the drawings, of the projectile fuze according to the invention; and wherein:
FIG. 1 shows a schematic illustration of a trajectory of a projectile with a known projectile fuze;
FIG. 2 shows an illustration, similar to FIG. 1, of the trajectory of a projectile with a projectile fuze according to the invention;
FIG. 3 shows a longitudinal section through a first embodiment of the projectile fuze according to the invention, and
FIG. 4 shows a longitudinal section illustration of a second embodiment of the projectile fuze according to the invention.
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a trajectory 10 of a projectile which has a conventional projectile fuze, with the arrow V indicating the safe separation distance, the arrow Ü indicating the overflight safety and the arrow T the time of flight or target range. The initiation height of the projectile fuze is annotated h.
In an illustration similar to FIG. 1, FIG. 2 shows the trajectory 10 of a projectile which has a projectile fuze according to the invention, with the arrow V once again denoting the mechanical safe separation distance and the arrow T the time of flight or target range. H in FIG. 2 denotes the firing altitude of the projectile fuze. The arrow Ü denotes the overflight safety in FIG. 2 as well, although this relates to electrical/mechanical overflight safety, with the point S denoting the point at which the safety and arming unit of the projectile fuze is armed.
FIG. 3 shows a longitudinal section illustration of one embodiment of the projectile fuze 12 according to the invention, which has a pyrotechnic force element 14 which is interconnected with fuze electronics, and which blocks the safety and arming unit 16 until the time of flight T—minus a predetermined time value Δt (see FIG. 2)—is reached. As soon as this is the case, a firing circuit for the projectile fuze 12 is electrically charged, and the safety and arming unit 16 is unlocked to the armed position, by initiation of the pyrotechnic force element 14. FIG. 3 shows the safety and arming unit in the safe position.
The safety and arming unit 16 has a rotor 18 with a fuze needle 20 and with a piercing detonator 22. The fuze needle 20 and the piercing detonator 22 are axially aligned with one another, and are at a distance from one another.
The projectile fuze 12 has an electrical detonator 24 which is interconnected with the fuze electronics.
The projectile fuze 12 also has a booster charge 26, which is associated with the electrical detonator 24. The rotor 18 is provided between the electrical detonator 24 and the booster charge 26.
While in the safe position as shown in FIG. 3, the fuze needle 20 and the piercing detonator 22 are not in line with the electrical detonator 24 and the booster charge 26, the electrical detonator 24, the fuze needle 20, the piercing detonator 22 and the booster charge 26 are in an axially aligned position, that is to say they are in line, when the projectile fuze 12 is in the armed position, as a result of the rotor 18 having been rotated through 180°.
FIG. 4 represents a longitudinal section illustration, similar to that in FIG. 3, of another embodiment of the projectile fuze 12 according to the invention, with the same details being annotated with the same reference numbers as in FIG. 3, so that there is no need to describe all of these details once again in conjunction with FIG. 4.
LIST OF REFERENCE SYMBOLS
10 Trajectory
12 Projectile fuze
14 Pyrotechnic force element (of 12)
16 Safety and arming unit (of 12)
18 Rotor (of 16)
20 Fuze needle (on 18)
22 Piercing detonator (on 18)
24 Electrical detonator (of 12)
26 Booster charge (of 12)
Patent Application
20080078299
