IGNITER SYSTEM AND PIECE OF AMMUNITION

Abstract

An igniter system for a piece of ammunition, having at least one propellant igniter and at least one igniter element designed for transmitting ignition power and extending away from the propellant igniter. The igniter element is arranged spaced apart from the propellant igniter.

Claims

1. An igniter system for a piece of ammunition, the igniter system comprising: at least one propellant igniter; and at least one igniter element designed to transmit ignition power, which extends away from the propellant igniter, wherein the at least one igniter element is arranged at a distance from the propellant igniter.

2. The igniter system according to claim 1, wherein the igniter system comprises at least one propellant charge, and the igniter element is designed to transmit ignition power to the propellant charge, the igniter element extending away from the propellant igniter in the propellant charge.

3. The igniter system according to claim 2, wherein the at least one igniter element is arranged at a radial distance with respect to a center line of the propellant charge.

4. The igniter system according to claim 2, wherein the at least one igniter element is situated an axial distance from the propellant igniter with respect to a center line of the propellant charge.

5. The igniter system according to claim 1, wherein the at least one igniter element is designed as a channel, tube and/or as a cylindrical element.

6. The igniter system according to claim 2, wherein the igniter element extends in the direction of a propellant charge front or at least up to the longitudinal direction center of the propellant charge or up to the propellant charge front.

7. The igniter system according to claim 1, wherein at least one ignition boost charge is formed separately from the propellant igniter and the igniter element.

8. The igniter system according to claim 1, wherein the igniter element is arranged at a radial distance from the propellant igniter.

9. The igniter system according to claim 1, wherein the at least one igniter element is designed to transfer the flame, hot gases and/or particles generated by the propellant igniter and/or the at least one ignition boost charge.

10. The igniter system according to claim 1, wherein the at least one igniter element is designed to generate a flame, hot gases and/or particles.

11. The igniter system according to claim 2, wherein the at least one igniter element has a greater flashover speed or burn-through speed, compared to the propellant charge.

12. The igniter system according to claim 2, wherein the igniter element is designed such that the propellant charge is ignitable uniformly over the length of the propellant charge or over the entire length of the propellant charge.

13. The igniter system according to claim 1, wherein the at least one ignition boost charge and/or the at least one igniter element is/are designed in the form of an additional black powder, boron-potassium charge and/or igniter charger, in particular in pouch form or encapsulated.

14. The igniter system according to claim 1, wherein the igniter element has an elongated hollow space.

15. A piece of ammunition comprising a projectile and an igniter system according to claim 1.

16. The piece of ammunition according to claim 15, wherein the piece of ammunition is a cartridged piece of ammunition.

17. The piece of ammunition according to claim 15, wherein the projectile includes a penetrator with a tail unit, the at least one igniter element being arranged in the propellant charge such that it runs through a region between two adjacent tail unit wings of the tail unit.

18. The piece of ammunition according to claim 17, wherein each igniter element runs through a separate region between two adjacent tail unit wings in each case.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus, are not limitive of the present invention, and wherein:

[0047] FIG. 1 shows a schematic sectional representation of a piece of ammunition according to the invention, including an igniter system,

[0048] FIG. 2 shows a schematic sectional representation of a piece of ammunition according to the invention, including an igniter system according to the invention;

[0049] FIG. 3 shows a schematic sectional representation of a piece of ammunition according to the invention, including an igniter system according to the invention;

[0050] FIG. 4 shows a schematic sectional representation of a piece of ammunition according to the invention, including an igniter system according to the invention;

[0051] FIG. 5 shows a schematic sectional representation of a piece of ammunition according to the invention, including an igniter system according to the invention;

[0052] FIG. 6 shows a schematic sectional representation of a piece of ammunition according to the invention, including an igniter system according to the invention; and

[0053] FIG. 7 shows a schematic sectional representation of a piece of ammunition according to the invention, including an igniter system according to the invention.

DETAILED DESCRIPTION

[0054] A schematic sectional representation of a piece of ammunition 1 according to the invention, including an igniter system 10 according to the invention, is illustrated in FIG. 1.

[0055] Igniter system 10 is designed for a piece of ammunition 1, as described above. As is apparent in FIG. 1, the piece of ammunition is a piece of cartridged ammunition 1, preferably a piece of large-caliber cartridged ammunition 1, whose projectile 5 includes a penetrator 8 having a sabot 7. Projectile 5, in particular penetrator 8, includes a tail unit 6. Tail unit 6 includes a plurality of tail unit wings 6.1, 6.2.

[0056] Piece of ammunition 1 comprises an igniter system 10 in addition to projectile 5.

[0057] According to FIG. 1, piece of ammunition 1 also includes a cartridge casing base 2 and a combustible cartridge casing rim 4. Although this is not illustrated here, cartridge casing base 2 and cartridge casing rim 4 may also be designed as a non-combustible cartridge casing.

[0058] Igniter system 10 includes at least one propellant igniter 20. According to FIG. 1, the latter is arranged in cartridge casing base 2.

[0059] Igniter system 10 also includes at least one propellant charge 30. Propellant charge 30 is a powder charge formed from a fine-grained or course-grained propellant powder 34.

[0060] Igniter system 10 also comprises at least one igniter element 40. Igniter element 40 is designed to transmit ignition power to propellant charge 30. Igniter element 40 extends away from propellant igniter 20 in propellant charge 30. The at least one igniter element 40 is arranged at a distance from propellant igniter 20.

[0061] The at least one igniter element 40 is arranged at a radial distance with respect to a center line M of propellant charge 30.

[0062] Center line M is a shared center line M of propellant charge 30, propellant igniter 20, cartridge casing base 2, cartridge casing rim 4 and projectile 5 as well as penetrator 8 of projectile 5.

[0063] As is apparent from FIG. 1, the at least one igniter element 40 extends in parallel to center line M.

[0064] The at least one igniter element 40 is also designed such that it runs along cartridge casing rim 4.

[0065] The at least one igniter element 40 is designed as a channel, tube and/or as a cylindrical element. According to FIG. 1, igniter element 40 extends in the direction of the propellant charge front 32, which is situated at an adapter opening 4.1 of cartridge casing rim 4. According to FIG. 1, the at least one igniter element 40 extends up to the region of propellant charge front 32 (the front 10% of propellant charge 30).

[0066] At least one ignition boost charge 50 is also formed separately from propellant igniter 20 and igniter element 40. One ignition boost charge 50 is preferably formed for each igniter element 40, which transmits the ignition of propellant charge 30 emerging from propellant igniter 20 to igniter element 40.

[0067] As is apparent from FIG. 1, igniter element 40 is arranged at a radial distance from propellant igniter 20.

[0068] The at least one igniter element 40 may be designed to transfer the flame, hot gases and/or particles generated by propellant igniter 20 and/or the at least one ignition boost charge 50. Igniter element 40 is provided with a hollow design for this purpose. Igniter element 40 may have an elongated hollow space for this purpose.

[0069] The at least one igniter element 40 and/or ignition boost charge 50 is designed to generate a flame, hot gases and/or particles.

[0070] The at least one igniter element 40 also has a higher flashover speed or burn-through speed, compared to propellant charge 30, in order to ensure that propellant charge 30 is ignited uniformly not only in the region of propellant igniter 20 but also along the at least one igniter element 40.

[0071] For this purpose, igniter element 40 is designed in such a way that propellant charge 30 is uniformly ignitable over the length of propellant charge 30, preferably the entire length of propellant charge 30.

[0072] The at least one ignition boost charge 50 and/or the at least one igniter element 40 is/are designed in the form of an additional black powder, boron-potassium charge and/or igniter charge, in particular in pouch form or encapsulated.

[0073] Propellant igniter 20 in FIG. 1 is used to ignite propellant charge 30. The output power of propellant igniter 20 is optionally boosted by one or multiple ignition boost charge(s) 50. The flame, hot particles and/or gases generated by propellant igniter 20 and possibly ignition boost charge 50 are used to either ignite igniter elements 40 or to transfer the flame, the hot particles and/or the gases. In the case of active generation of hot particles and/or gases, pyrotechnic substances, mixtures as well as rapidly burning propellant powders and combinations of the two are used.

[0074] One or multiple ignition boost charge(s) 50 may be used or combined.

[0075] FIG. 2 shows a schematic sectional representation of a piece of ammunition 1 according to the invention, including an igniter system 10′ according to the invention in a second specific embodiment. Igniter system 10′ of the second specific embodiment is based on igniter system 10′ of the first specific embodiment, only the differences between the second and the first specific embodiment being explained below.

[0076] The at least one igniter element 40′ does not run in parallel to center line M but extends, in addition to the axial direction, also in a radial direction of center line M. The rear end of the at least one igniter element 40′ is arranged closer to center line M than the front end of igniter element 40′. Accordingly, the front end of igniter element 40′ is arranged closer to cartridge casing rim 4 than the rear end of igniter element 40′.

[0077] As is apparent in FIG. 2, the at least one igniter element 40′ is arranged in propellant charge 30 such that it runs through a region between two adjacent tail unit wings 6.1, 6.2. At least one part of the at least one igniter element 40′ runs between two adjacent tail unit wings 6.1, 6.2.

[0078] As is apparent from FIG. 2, each igniter element 40′ runs through a separate region between two adjacent tail unit wings 6.1, 6.2 in each case.

[0079] FIG. 3 shows a schematic sectional representation of a piece of ammunition 1 according to the invention, including an igniter system 10″ according to the invention. Igniter system 10″ in the third specific embodiment is based on igniter system 10″ in the first specific embodiment, only the differences between the third and the first specific embodiment being explained below.

[0080] Igniter element 40″ extends in the direction of propellant charge front 32 and at least up to longitudinal direction center 30.sub.M (center of the propellant charge in the longitudinal direction) of propellant charge 30. FIG. 4 shows a schematic sectional representation of a piece of ammunition 1 according to the invention, including an igniter system 10′ according to the invention. Igniter system 10′″ in the fourth specific embodiment is based on igniter system 10′ in the second specific embodiment, only the differences between the fourth and the second specific embodiment being explained below.

[0081] Igniter element 40′″ extends in the direction of propellant charge front 32 and at least up to longitudinal direction center 30.sub.M of propellant charge 30.

[0082] FIG. 5 shows a schematic sectional representation of a piece of ammunition 1 according to the invention, including an igniter system 10″″ according to the invention. Igniter system 10″″ in the fifth specific embodiment is based on igniter system 10″″ in the third specific embodiment, only the differences between the fifth and the third examples being explained below.

[0083] According to the example according to FIG. 5, igniter elements 40″″ also run in parallel to center line M. The at least one igniter element 40″″ is arranged in propellant charge 30 such that it runs between two adjacent tail unit wings 6.1, 6.2. Each igniter element 40 preferably runs through a separate region between two adjacent tail unit wings 6.1, 6.2 in each case.

[0084] FIG. 6 shows a schematic sectional representation of a piece of ammunition 1 according to the invention, including an igniter system 10′″″ according to the invention. Igniter system 10′″″ may essentially correspond to igniter system 10′″″ of the first through fifth specific embodiments. Igniter elements 40, 40′, 40″, 40′″, 40″″, 40′″″ are not illustrated in FIG. 6, but they may be designed according to the specific embodiments in FIGS. 1 through 5 or 7. Igniter system 10′″″ is provided with a different design only with respect to ignition boost charge 50. According to igniter system 10′″″ in the sixth specific embodiment, only a single ignition boost charge 50 is formed. The latter is arranged on center line M between propellant igniter 20 and tail unit 6. Accordingly, ignition boost charge 50 is designed to be stronger.

[0085] FIG. 7 shows a schematic sectional representation of a piece of ammunition according to the invention, including an igniter system according to the invention in a first specific embodiment. Igniter system 10″″″ in the seventh example is based on igniter system 10″″″ in the fifth example, only the differences between the seventh and the fifth example being explained below.

[0086] According to the seventh example, only a single igniter element 40″″ is formed, which has a larger diameter than igniter element 40′″″ in the other specific embodiments. Igniter element 40′″″ is formed between tail unit 6 of penetrator 8 and sabot 7 and is mounted on penetrator 8.

[0087] Igniter element 40′″″ is formed at a distance from propellant igniter 20.

[0088] Igniter element 40′″″ extends at least up to longitudinal center 30.sub.M of propellant charge 30, preferably beyond it.

[0089] An ignition variant is shown in FIG. 7, which combines mechanical strength, compactness as well as a low additional volume with each other.

[0090] Igniter element 40′″″ is designed as a perforated or unperforated tube for transferring the flame, the hot particles and/or the gases, and it may ignite propellant charge 30 without the provision of additional pyrotechnic substances in igniter element 40″″. The channel formed by igniter element 40′″″ alone may carry the ignition in the middle and front regions of propellant charge 30. Alternatively, the hollow space through the tube may be partially or completely filled with pyrotechnic substances and mixtures and/or with propellant powder.

[0091] The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are to be included within the scope of the following claims.