WO2000046551A1 - Anzündsystem für treibladungen, das nach dem induktionsprinzip arbeitet - Google Patents
Anzündsystem für treibladungen, das nach dem induktionsprinzip arbeitet Download PDFInfo
- Publication number
- WO2000046551A1 WO2000046551A1 PCT/EP2000/000273 EP0000273W WO0046551A1 WO 2000046551 A1 WO2000046551 A1 WO 2000046551A1 EP 0000273 W EP0000273 W EP 0000273W WO 0046551 A1 WO0046551 A1 WO 0046551A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ignition
- ignition system
- cartridge case
- primary
- coils
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
- F41A19/58—Electric firing mechanisms
- F41A19/63—Electric firing mechanisms having means for contactless transmission of electric energy, e.g. by induction, by sparking gap
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/08—Cartridges, i.e. cases with charge and missile modified for electric ignition
Definitions
- the invention relates to an ignition system for propellant charges, which works on the induction principle, according to the preamble of the first claim.
- Ignition systems for propellant charges which operate on the induction principle, have been known for a long time and are described, for example, in European patent EP 0 526 389 B1.
- a device for firing ammunition which has a combustion chamber which can accommodate a plurality of propellant bodies containing a propellant charge and an ignition means for igniting the propellant charge.
- a fixed primary coil receiving an ignition signal is provided on the combustion chamber, the primary coil surrounding the combustion chamber.
- a secondary coil is arranged in each propellant charge body and is connected to an ignition means resistor that initiates the ignition means.
- the invention is therefore based on the object of improving the known ignition system for propellant charges. This problem is solved with the aid of the characterizing features of the first claim.
- Advantageous embodiments of the invention are claimed in the subclaims.
- the at least one primary coil is not arranged around the combustion chamber, but in or on the cartridge case wall.
- the primary coil can thus be matched to the size of the propellant charge, as a result of which the required ignition energy is limited to the particular requirement.
- the cartridge case wall is also advantageously suitable as a winding body, and the windings can also be laid inside the case wall, where they can be protected by covering layers of the case wall.
- wire windings printed circuits applied to the cartridge case wall can also be used as the primary coil.
- the winding density of the primary coil can advantageously be constant over the length of the cartridge case.
- the manufacture is very simple and there is a uniform induction with a homogeneous magnetic field.
- the winding density is variable over the length of the cartridge case.
- the density of the windings for generating the induction can be higher than in the area of the distances between the secondary coils.
- the primary coil can also be divided into several individual coils arranged spatially one behind the other. This is already the case if, instead of one propellant body, several propellant bodies, each with its own sleeve wall, are assembled to form a total charge.
- the primary coils can do this optimally are assigned to the secondary coils and can thus also be distributed variably over the length of the cartridge case.
- both the primary coil and the cartridge case can be inert, that is, they can be retained when the propellant charge burns up.
- the primary coil and the cartridge case can also be consumable, which means that they also burn off when the propellant charge burns up.
- the primary coil and the cartridge case can also actively contribute to the fire of the propellant charge by being combustible themselves.
- coils made of the so-called printed conductors are advantageous because, in contrast to conductors made of wire, they can be produced from combustible or consumable materials.
- Propellant charges are usually already available in a certain size as propellant charges. To adapt to the type of projectile, it is necessary to assemble the propellant charge bodies in the required number. It is advantageous if the wall of the cartridge case is in several parts. Since each of the cartridge case parts has at least one primary coil, the partial sleeves must be electrically coupled. This electrical coupling can be galvanic, for example, which means that when the cartridge cases are plugged together, contact points come to rest against one another. The electrical coupling can also take place capacitively. A large-area coating in the area of the places where the partial sleeves are pushed over one another, for example, can result in a capacitive coupling of the conductor surfaces, separated from one another by the cartridge sleeve wall.
- induction coils being arranged in the region of the overlap of the respective partial sleeves, which are opposite one another after the partial sleeves have been plugged together.
- the individual primary coils can be electrically connected in series or electrically in parallel. In the first case, the level of the voltage induced in each of the secondary coils depends on the resistance of the coils of the primary circuit. In the second case, the same voltage is present on all primary coils.
- a combination of the two electrical circuits of the primary coils is also possible, in that a part of the primary coils is electrically connected in series and another part of the primary coils is connected electrically in parallel. This makes it possible to specify the intensities of the firings at a specific point in time.
- Control elements for controlling the ignition current can be connected in the respective circuit of the primary coils. These controls can include temperature sensors, temperature switches, timers, and transmit / receive circuits. Thus, if necessary, for example depending on the temperature of the propellant powder or the prevailing humidity, the ignition current can be switched at different times, simultaneously, in series or as desired.
- the secondary circuit also called the receiving circuit, comprises at least one ignition level arranged in the powder space of the propellant charge, which consists of an inert or consumable or combustible base body, one or more electrical igniters and an inert or consumable or combustible secondary coil which is electrically connected to the igniters.
- the design of the ignition level has the same advantages as the design of the primary circuit.
- control elements can be connected in the circuit of the igniter in order to control the ignition current in the ignition levels.
- These controls can also include temperature sensors and temperature switches, timers, and transmit or receive circuits. In this case too, depending on the temperature, for example the propellant charge powder Ignition current can be switched at different times, simultaneously, serially or as desired.
- Circuits integrated in the igniter circuit for programming the ignition sequence can be connected in the ignition levels. This provides the possibility, particularly in stand-by mode, of programming the firing levels via integrated circuits as a function of the powder temperature, in accordance with the intended purpose, with induction coupling of a coded phase, pulse, or frequency-modulated signal in the primary circuit in order to fire one to achieve time and temperature dependent initiation of the ignition.
- the advantages of the invention lie in the fact that the disadvantages of conventional ignition, which have already been mentioned, are eliminated in that the propellant charge powder is ignited in a manner dependent on the powder temperature and in a temporally and locally defined manner, thereby increasing the range and penetration of the projectiles.
- FIG. 1 shows a propellant charge body according to the invention, partially in section
- FIG. 2 shows a schematic illustration of a series connection of primary coils
- FIG. 3 shows a schematic illustration of a parallel connection of primary coils with control elements in the circuit
- Figure 4 is a schematic representation of a secondary circuit according to the
- Figure 5 is an assembly drawing of a primary and a
- a propellant charge body according to the invention is shown schematically in partial section at 1.
- the cartridge case 2 surrounds the propellant charge 3.
- a cylindrical ignition body 5 is arranged in a longitudinal cylindrical recess 4 in the center of the propellant charge body 1.
- the primary coils 7 embedded in the wall 6 can be seen.
- the ignition current is supplied via a metallic ring 9 which is arranged on the end face 10 of the propellant charge body 1.
- This ring 9 is connected to a power supply in the combustion chamber, not shown here, when the propellant charge is inserted therein.
- the current feedback 11 is likewise in the wall 6 of the cartridge case 2 and leads from the end face 12 to a further ring 13, which is also arranged concentrically with the ring 9 on the end face 10 of the propellant charge body 1.
- This ring 13 is also connected to a contact in the combustion chamber. While the contacts in the combustion chamber can consist of pins, it is advantageous if the contacts on the propellant body are ring-shaped, because then the contacts on the propellant body are always assigned to the contacts in the combustion chamber, regardless of the position of the propellant body.
- the secondary circuit 14 with the ignition planes 15a, 15b and 15c is arranged in the cut ignition body 5. You can see the cut turns 16 of the three secondary coils 17a, 17b and 17c.
- the igniters 18a, 18b and 18c visible here are connected to the secondary coils 17a, 17b and 17c.
- FIG. 2 shows the schematic circuit diagram of a series connection of primary coils.
- An ignition circuit control 20 in which the ignition timing is determined, for example, leads the ignition current via the lead 21 to a pin contact 22 in the combustion chamber (not shown here).
- the ring 9 bears against the pin contact 22, from which the primary coils 7a, 7b and 7c are supplied with the ignition current.
- the primary coils 7a, 7b and 7c are embedded in the wall 6 of the cartridge case 2, as already shown in FIG. 1.
- the return line 11 leads to the ring 13, which is connected to a pin contact 23, which is also arranged in the combustion chamber, not shown here.
- the return line 24 leads back to the ignition circuit control 20 from this pin contact 23.
- Figure 3 differs from Figure 2 in that the primary coils are not connected in series, but in parallel to each other.
- the lead 21 coming from the ignition circuit control 20 is divided into three branches 21a, 21b and 21c. Each of these branches leads to its own pin contact 22a, 22b and 22c. These are each on a single ring 9a, 9b and 9c. Each of these rings is connected to a feed line 25a, 25b and 25c, which lead individually to the primary coils 107a, 107b and 107c located in the wall 6 of the cartridge case 2 and supply them with the required ignition current. Each of these primary coils 107a, 107b and 107c is individually connected to the current guide 11, which, comparable to FIG. 2, leads back to the ignition circuit control 20.
- Switching elements 26a, 26b and 26c are respectively arranged in the ignition lines 21a, 21b and 21c.
- the circuit diagram of the secondary ignition circuit 14 is shown schematically in FIG. It corresponds to the secondary ignition circuit in FIG. 1.
- the three ignition levels 15a, 15b and 15c comprise the respective secondary coils 17a, 17b and 17c.
- the actual number of igniters is shown here.
- the ignition level 15a accordingly has a further igniter 18d
- the ignition level 15d has two further igniters 18e and 18f
- the ignition level 15c also has two further igniters 18g and 18h.
- a different ignition intensity can be set on each of the ignition levels.
- switching elements can also be arranged in the circuit 27 of the respective ignition levels.
- the switching elements 26a, 26b, 26c are also temperature-dependent switching elements.
- the circuits of the respective ignition levels can only be closed and the igniters can only be activated if the switching elements close the circuits and do not leave them open due to an impermissible temperature of the propellant charge.
- the secondary ignition circuit in FIG. 4 can each be assigned to one of the primary ignition circuits arranged above it.
- Figure 5 shows one of the possible assignments. There is an assignment of Figure 2 to Figure 4 to the present embodiment.
- a programming signal 28 is applied to the ignition circuit control.
- the ignition levels can be programmed via the integrated circuits as a function of the powder temperature so that a time and temperature dependent initiation of the ignition is achievable.
- the integrated circuits 29a, 29b and 29c are each arranged in the circuits 27 of the ignition levels 15a, 15b and 15c.
- the signal transmission takes place before the actual ignition process, ie before the induction of the ignition current, and is symbolized in the present exemplary embodiment by the characters 30.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00904917A EP1151229A1 (de) | 1999-02-03 | 2000-01-15 | Anzündsystem für treibladungen, das nach dem induktionsprinzip arbeitet |
CA002361674A CA2361674A1 (en) | 1999-02-03 | 2000-01-15 | Ignition system for propelling charges which functions according to the induction principle |
IL14420100A IL144201A0 (en) | 1999-02-03 | 2000-01-15 | Ignition system for propelling charges which functions according to the induction principle |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904195 | 1999-02-03 | ||
DE19904195.4 | 1999-02-03 | ||
DE19962594.8 | 1999-12-23 | ||
DE19962594A DE19962594B4 (de) | 1999-02-03 | 1999-12-23 | Anzündsystem für Treibladungen, das nach dem Induktionsprinzip arbeitet |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000046551A1 true WO2000046551A1 (de) | 2000-08-10 |
Family
ID=26051641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/000273 WO2000046551A1 (de) | 1999-02-03 | 2000-01-15 | Anzündsystem für treibladungen, das nach dem induktionsprinzip arbeitet |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1151229A1 (de) |
CA (1) | CA2361674A1 (de) |
IL (1) | IL144201A0 (de) |
WO (1) | WO2000046551A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0412895A1 (de) * | 1989-08-08 | 1991-02-13 | Commissariat A L'energie Atomique | Elektrisch gezündete pyrotechnische Treibladung |
DE3931896A1 (de) * | 1989-09-25 | 1991-04-04 | Wegmann & Co | Wurfsystem fuer wurfkoerper, wie nebelkerzen u. dgl. |
DE4003320A1 (de) * | 1990-02-05 | 1991-08-08 | Rheinmetall Gmbh | Geschoss fuer elektrothermische beschleunigungsvorrichtungen |
DE4220680A1 (de) * | 1991-06-29 | 1993-01-07 | Dynamit Nobel Ag | Vorrichtung zum verschiessen von munition |
EP0526389A1 (de) | 1991-06-29 | 1993-02-03 | Dynamit Nobel Aktiengesellschaft | Vorrichtung zum Verschiessen von Munition |
DE19706605A1 (de) * | 1997-02-20 | 1998-08-27 | Dynamit Nobel Ag | Sekundärspule für ein induktives Anzündsystem |
FR2764369A1 (fr) * | 1997-06-04 | 1998-12-11 | Lasers Et Tech Avancees Bureau | Systeme de mise a feu par plasma d'une munition d'artillerie |
-
2000
- 2000-01-15 CA CA002361674A patent/CA2361674A1/en not_active Abandoned
- 2000-01-15 EP EP00904917A patent/EP1151229A1/de not_active Ceased
- 2000-01-15 WO PCT/EP2000/000273 patent/WO2000046551A1/de not_active Application Discontinuation
- 2000-01-15 IL IL14420100A patent/IL144201A0/xx unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0412895A1 (de) * | 1989-08-08 | 1991-02-13 | Commissariat A L'energie Atomique | Elektrisch gezündete pyrotechnische Treibladung |
DE3931896A1 (de) * | 1989-09-25 | 1991-04-04 | Wegmann & Co | Wurfsystem fuer wurfkoerper, wie nebelkerzen u. dgl. |
DE4003320A1 (de) * | 1990-02-05 | 1991-08-08 | Rheinmetall Gmbh | Geschoss fuer elektrothermische beschleunigungsvorrichtungen |
DE4220680A1 (de) * | 1991-06-29 | 1993-01-07 | Dynamit Nobel Ag | Vorrichtung zum verschiessen von munition |
EP0526389A1 (de) | 1991-06-29 | 1993-02-03 | Dynamit Nobel Aktiengesellschaft | Vorrichtung zum Verschiessen von Munition |
DE19706605A1 (de) * | 1997-02-20 | 1998-08-27 | Dynamit Nobel Ag | Sekundärspule für ein induktives Anzündsystem |
FR2764369A1 (fr) * | 1997-06-04 | 1998-12-11 | Lasers Et Tech Avancees Bureau | Systeme de mise a feu par plasma d'une munition d'artillerie |
Also Published As
Publication number | Publication date |
---|---|
CA2361674A1 (en) | 2000-08-10 |
EP1151229A1 (de) | 2001-11-07 |
IL144201A0 (en) | 2002-05-23 |
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