Rheinmetall Gmbh

Klaus Unterstein

Walter Simon

Thomas Heitmann

Werner Grosswendt

Jurgen Leeker

Sigfrid Buchele-Buecher

Achim Sippel

Dieter Jungbluth

Willhelm Becker

Sigfrid Buechele-Buecher

Wilhelm Becker

A sabot for a subcaliber projectile, preferably an arrow projectile, having an essentially cylindrical guide gage (8) of a lightweight material and a tail-side drive element (14) detachably connected thereto for tail-side support of the projectile body (1). The guide cage (8) has a radially inwardly-extending support wall (12) for supporting a projectile body (1) disposed therein in its forward to central region, and the drive element is a propelling disk (14) that is received by a circumferential or annular groove (13) in the tail region of the guide cage (8), which is segmented in the axial direction of the projectile body (1). As a result, a further reduction in weight can be accomplished with simpler fragmenting of the sabot that practically does not impair the projectile at all.

Sabot for a subcaliber projectile

A subcaliber arrow projectile includes a projectile body which has a rearwardly widening, conical projectile tip having a forward point and a rearward base, whose caliber corresponds to the projectile caliber. The projectile body further has a rearwardly widening, resistance-stabilizing conical rear part immediately adjoining the base of the projectile tip. The rear part has an enlarged caliber which is greater than the projectile caliber.

Subcaliber arrow projectile

The present invention relates to a method of disassembling large-caliber combat cartridges, particularly armor-piercing cartridges, including a combustible casing jacket that conically widens in the direction of the projectile, a casing bottom and a casing cover to which is fastened a sub-caliber projectile equipped with a propelling sabot. To be able, on the one hand, to reduce expenditures for the disassembly of such combat cartridges and, on the other hand, to reuse a major portion of the original combat cartridges for the production of corresponding training cartridges, it is proposed to separate the casing jacket as well as the casing cover starting at their outer circumference, in regions having approximately the same, predetermined diameter D1. This diameter D1 here corresponds to the maximum diameter of the component of the new cartridge to be produced later from the disassembled components. The portion of the casing jacket and of the casing cover disposed between the regions is discarded and is replaced in the production of the new cartridge by a cylindrical casing jacket component having the diameter D1.

Method of disassembling large-caliber combat cartridges and use of the

Projectile equipped with braking parachute

Projectile equipped with deployable parachute

A pressure relief valve arrangement forming a combination with a pyrotechnic gas generator having a housing; a combustion chamber enclosed by the housing; a pyrotechnic propellant charge disposed within the combustion chamber; control nozzles disposed in the housing and communicating with the exterior of the housing; gas channels connecting the combustion chamber with the nozzles; valve devices for opening and closing the gas channels; and a control member for actuating the valve devices. The pressure relief valve arrangement includes: a pressure sensor for measuring pressure in the combustion chamber; a temperature sensor for sensing the temperature of the propellant charge; an electronic circuit connected for receiving the output signals of the pressure sensor and the temperature sensor and for producing a signal representing a desired pressure within the combustion chamber in dependence of the temperature of the propellant and a given combustion speed of the propellant charge, and for comparing the signal representing desired pressure with the signal representing the measured pressure to produce a pressure regulating signal. A regulating device is connected to the electronic circuit for being activated by the pressure regulating signal to vent the combustion chamber when a pressure is detected therein which is in excess of the desired pressure value so as to dissipate such excess pressure.

Pressure relief valve arrangement for a pyrotechnic gas generator

A pressure relief valve for a hot gas generator is constructed as a valve arrangement which can be subjected to high temperature shocks and abrasion causing gaseous streams. The valve arrangement is constructed so as to have a prolonged operative life despite such operative demands, whereby simultaneously the predetermined pressure resistance for this valve arrangement is precisely maintained. For this purpose the valve arrangement includes a piston of substantially longitudinal cylindrical shape which has hemispherically shaped ends. A coil spring is operatively maintained behind the piston between a pair of end pieces which bias the piston towards a combustion chamber. The valve arrangement includes a valve body in which the piston is slidably moved. The valve body is made of a high temperature molybdenum alloy, whereas the piston, the seat and the end pieces for the coil spring 16 are made of a material having poor heat conduction characteristics, preferably silicon nitride.

Valve arrangement

A steering block for the final phase of a guided projectile comprises control jets acted upon by hot gas created in a combustion chamber. A preferred embodiment of more compact and acceleration resistant construction, uses four control jets arranged lying in the cross sectional plane of the projectile casing equidistantly distributed around the circumference of the projectile casing. Each control jet has a corresponding valve likewise arranged lying in a plane in such a way that their longitudinal axes extend along chords of the circular cross section of the projectile casing. In another preferred embodiment, for purposes of further cost reduction in volume and weight, the valves have an adjusting member made of memory alloy which is electrothermically acted upon by way of a heating element.

Projectile steering block

The invention concerns a gas generator with a fuel gas filter for the pyrotechanical production of gases from a propellant charge. A separator chamber is disclosed that is designed with annular slots for the purpose of cleaning gas contaminated with solid residue from combustion. The gases produced in the combustion chamber enter the separator chamber through tangentially arranged gas ducts. After flowing through the annular formed separator chamber, the gases flow around the frontal area of the central axially arranged center block before they reach the guidance components, which are sensitive to soiling. Subsequently, the hot gases exit by way of a jet. Through the effect of centrifugal forces, the contaminating particles are slung against the outer wall of the annularly slotted separator chamber and are held fast in its special profile.

Gas generator

The invention concerns a missile body having a first flight guide and stabilization means mounted on the missile body and a second guide and stabilization means mounted on the missile body in front of the first guide and stabilization means with respect to the direction of flight. The second guide and stabilization means comprise a plurality of wings which are folded inwardly (collapsed inwardly, pivoted inwardly) into the missile body when in their inoperative position. These wings can be pivoted or slid outwardly when in their operative position by means of a collapsed expandable body which is expanded by means of pressurized gas. The pressurized gas is stored in a pressurized gas cylinder mounted within the missile body. The expandable body expands in a radial direction and thereby exerts a force on the wings which causes them to either pivot about a rotatable axis or to move in a radial direction outwardly of the missile body.

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Dusseldorf, Germany

Klaus Unterstein