Bae Systems Bofors Ab

Bofors Defence Ab

Bofors Ab

Nils Johansson

Torsten Ronn

Torsten Rönn

Erik Fohrman

Rolf Larsson

Thomas Widlund

Sven-ANGke Jern

Bjorn Hagstrom

Bj&ouml;rn Hagstr&ouml;m

Sven-&angst;ke Jern

The invention relates to a shell () arranged with extensible wings () having improved guidance characteristics during the gliding and final phase of the shell (). The invention is characterized in that the extensible wings (), via threaded wing fixtures (), are movably arranged on rotatable axial guide shafts () on the shell body () for separate or simultaneous displacement of the wings () in the longitudinal direction A of the shell (), for guidance of the shell () in the vertical and lateral directions during the trajectory phase of the shell, and in that the wings () are also rotatably arranged on radial guide shafts for controlling the angle of incidence of the wings () during the final phase of the shell ().

Shell arranged with extensible wings and guiding device

The invention relates to a shell () intended for firing from a weapon (), preferably a mortar weapon (), the shell () being designed for securing the shell () in a mortar weapon () in order thereby to prevent movement of the shell () when adjusting the angle of elevation of the weapon (). According to the invention this is achieved in that the shell () comprises a locking part (), the locking part () forming an integral part of the shell () and being designed so that the shell () after ramming home is locked to a corresponding securing part () in the mortar (). The invention also relates to a mortar () intended for firing said shell (), the mortar () being characterized in that the mortar () comprises a corresponding securing part () for locking the shell ().

Shell designed for securing in a mortar and mortar designed for such a shell

The present invention relates to a method and a shell () for achieving variable firing range and effect when firing from a launcher, which shell () contains a firing charge (), a rocket motor charge () with gas outlet (), a rocket motor nozzle () and an active part (). According to the invention, this is achieved by virtue of the fact that the shell () also contains a release mechanism () for releasing the rocket motor nozzle () from the rocket motor charge () after a time delay determined with regard to firing range and effect, and that the rocket motor charge () comprises a propellant which is detonable.

Method of varying firing range and effect in target for shell and shell configured for this purpose

An ammunition unit, for combating targets () with or without using shaped charge effect, that incorporates an openable or removable and replaceable hull or outer casing (). The explosive charge in the ammunition unit comprises a charge section () with shaped charge function arranged to be able to assume either of two freely selectable positions in the ammunition unit, the first of which enables the charge to exert its shaped charge function and the second of which disables the shaped charge function and enables a different effect to be triggered.

Device for combating targets

A proximity-fuzed ammunition unit () that can approach a target and where during approach the proximity fuze function effects or gives rise to a voltage pulse pattern that is dependent on objects located along the flight path of the ammunition unit on its approach to the target. The voltage pulse pattern forms the basis for the actution of at least one triggering device () incorporated in the ammunition unit. The electrical circuit or circuits incorporated in or interacting with each triggering device is/are arranged to sense a voltage or amplitude value in the trailing edge of a pulse incorporated in or forming the pattern. If the pattern comprises a number of pulses an indication is given when a predetermined number of pulses has appeared to appears. Each electrical circuit causes or effects the opeation of the triggering device for its actuation depending on the said sensing and/or indication.

Device for a proximity-fuzed unit ammunition

A warhead charge device () arranged to carry liquid explosive (), and which device is for use in an ammunition cargo unit such as a missile. The device incorporates at least two confined spaces () equipped with or, while the function of the device is in operation, capable of receiving liquid explosive () or components thereof via a device such as a pump device arranged to transfer completely or partially the explosive or components thereof from at least the first confined space to the other confined space, or vice versa.

Device for warhead charges for cargo ammunition units

An ammunition unit () designed to he adaptable to different types of targets () or situations. The said ammunition unit comprises cylindrical warhead charges () that confine or form explosive compositions (), on or around the outside of which there are effect layers or casing containing effect elements (). These effect elements together with the explosive compositions () constitute the combatant function. Two or more cylindrical warhead charges () are arranged essentially parallel alongside each other or inside each other. Each of the cylindrical warhead charges comprises effect layers around their cylindrical outer surface that provide different effects in target. The cylindrical warhead charges are rotatably arranged to assume different rotational setting modes, and in each such mode the same type or co-ordinated types of effect layers are directed outwards.

Device for adapting a unit of ammunition for different types of targets and situations

A warhead device comprising explosive charges and effect elements or effect agents for incorporation in a missile. The warhead device consists of a number of modules or modular charges () arranged to be actuatable between two or more pivotal positions in the cross-section of the warhead device. Each module comprises outer walls () that one by one are directed outwards depending on the position or pivotal position assumed by the module. Each outer wall of each module comprises warhead effect elements and/or effect agents that differ from the other warhead effect elements or agents. The outer walls that are directed outwards simultaneously form or are part of the common outer wall of the warhead device, and project a selectable warhead effect from the warhead device.

Modular warhead for units of ammunition such as missiles

An ammunition device () comprising one or more warhead effect jackets (), each jacket containing warhead effect elements (). The ammunition device also incorporates one or more explosive compositions arranged inside each warhead effect jacket that in or close to the target is/are triggerable by means of a triggering device. One or more separation charges is/are arranged adjacent to each warhead effect jacket that when actuated cause removel of one or more said warhead effect jacket(s). The actuation devices incorporate or interact with a programming device that operates with a first mode that can be an initial mode in which the actuation devices remain non-actuated, and a second mode in which the programming device actuates the actuation devices for initiating the separation charges, thereby causing ejection of each warhead effect jacket concerned.

Unit of ammunition with one or more warhead casings

A device arranged to enable the engagement of targets () by means of a shaped charge function. An ammunition unit is arranged to operate with at least two configuration modes where in the first mode the ammunition unit comprises solely a first modular charge (). In the second mode the first modular charge is conjoined with a second modular charge (). The modular charges each effect their own type of shaped charge function. Another feature is that the ammunition unit is arranged to enable changeover from the first configuration to the second before firing, launch or release of the ammunition unit.

Device to enable targets to be combated by a shaped charge function

A method for contactless inductive transmission of programming data to a programmable time fuse included in a shell for a single shot, semi-automatic, or fully automatic shell firing barrel weapon. While the shell is situated in a cartridge chamber of a barrel of the weapon, data is transmitted to the programmable time fuse from a programming device of the weapon via a transmitting coil arranged around the cartridge chamber of the barrel to a receiving coil arranged in the shell. At least a part of the barrel lying between the coils is replaced by a non-magnetic material and designed so that it does not form an electrically conductive short circuited layer that would prevent transmission between the coils.

Growing community of inventors

Karlskoga, Sweden

Nils Johansson