EP1464912B1 - Vorrichtung zur Rückgewinnung von der Rückstossenergie einer Waffe - Google Patents

Vorrichtung zur Rückgewinnung von der Rückstossenergie einer Waffe Download PDF

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Publication number
EP1464912B1
EP1464912B1 EP04290759A EP04290759A EP1464912B1 EP 1464912 B1 EP1464912 B1 EP 1464912B1 EP 04290759 A EP04290759 A EP 04290759A EP 04290759 A EP04290759 A EP 04290759A EP 1464912 B1 EP1464912 B1 EP 1464912B1
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EP
European Patent Office
Prior art keywords
weapon
chamber
cylinder
recoil
energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04290759A
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English (en)
French (fr)
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EP1464912A1 (de
Inventor
Alain Charton
Dominique Guesnet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nexter Systems SA
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Nexter Systems SA
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Publication date
Application filed by Nexter Systems SA filed Critical Nexter Systems SA
Priority to PL04290759T priority Critical patent/PL1464912T3/pl
Publication of EP1464912A1 publication Critical patent/EP1464912A1/de
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Publication of EP1464912B1 publication Critical patent/EP1464912B1/de
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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
    • F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes
    • F41A25/16—Hybrid systems
    • F41A25/20—Hydropneumatic systems

Definitions

  • the technical sector of the invention is that of the braking systems of a moving element, for example a weapon during the recoil caused by firing a projectile and recovering the energy thus developed.
  • EP-0403452 describes a device for using stored energy to close the breech of a weapon.
  • the device described only allows the use of energy for a single movement performed back and forth such as, for example, the opening / closing of the cylinder head or the ejection of the sleeve.
  • the proposed devices do not allow the storage of the recovered energy for possible use for other purposes.
  • the patent EP491106 describes a reversing brake coupled to a recovery cylinder.
  • a recovery cylinder comprises a free piston delimiting a gas chamber and a fluid chamber.
  • the recoil of the weapon causes a pressurization of the chamber while ensuring the suction of fluid via the channel to compensate for leaks.
  • the battery return is via a double piston.
  • the device described in this document is in fact an improved gas recovery system in that it includes an outward connection allowing to use an excess of pressure to control an actuator and also to raise the pressure level by an external generator. However, it does not allow to feed a battery.
  • the known energy recuperators do not allow to feed several networks.
  • the subject of the invention is therefore a device for recovering the energy produced during the recoil of a weapon, comprising an energy recovery cylinder actuated by the recoil of the weapon, a double-effect recuperation cylinder comprising a first and a second second chamber separated by a piston, the first chamber of the jack being connected to a hydraulic supply circuit of the weapon, the piston of this jack pushing the hydraulic fluid of this circuit into a storage accumulator during the recoil of the weapon , characterized in that the second chamber of the energy recovery cylinder is connected to an elastic link of the weapon which ensures its pressurization during the recoil of the weapon, the recovery cylinder further comprising a rod secured to the piston rod which is pushed by the weapon during the return in battery of this one.
  • the energy recovery cylinder is connected to the hydraulic supply circuit of the weapon via a main pipe which divides into at least two secondary pipes provided with the first and second valves allowing the passage of fluid in one direction, a secondary pipe connecting the main pipe to the storage accumulator and another secondary pipe connecting the main pipe to a booster battery.
  • the first valve is disposed between the booster accumulator and the main pipe
  • the second valve is disposed between the main pipe and the storage accumulator, the first valve being closed and the second valve open when the weapon retreats.
  • the storage accumulator can supply fluid under pressure to the hydraulic network of the weapon via a service line.
  • the second chamber of the recovery cylinder is connected to the nitrogen chamber of the elastic link.
  • the second chamber of the recovery cylinder is connected to the elastic link via an oil circuit defined on the side of the nitrogen chamber of the elastic link by a free piston which isolates the nitrogen and the oil circuit.
  • the second chamber of the recovery cylinder is connected to the oil chamber of the elastic link.
  • a weapon 1 whose recoil mass 1a is partially diagrammed. With each shot of the weapon and in a known manner, the weapon 1 is moved back and forth along the arrow F1.
  • This weapon 1 is attached to an elastic link 20 comprising a first jack 9 whose rod 21 is integral with the recoil mass of the weapon and a nitrogen chamber 10.
  • the rod 21 is integral with a piston 32 sliding in the cylinder 9 and delimiting the chambers 8 and 23.
  • the nitrogen chamber 10 is limited by a free piston 7 which is also subjected to the action of the fluid present in the cylinder 9 via a chamber 22.
  • the weapon moves quickly following the arrow F2.
  • the fluid of the cylinder 9 passes through a calibrated orifice and feeds the chamber 22 which causes compression by the free piston 7 of the nitrogen contained in the chamber 10.
  • the recoil of the weapon is by elsewhere quickly braked by a recoil brake (not shown) coupled to the elastic link 20.
  • the compressed nitrogen in the chamber 10 exerts a pressure on the piston 7 which makes it possible to cause, after recoil, the return to battery of the recoil mass 1a, and the return of the rod 21 to its initial position.
  • an energy recovery device 2 which is connected to the nitrogen chamber 10 and actuated by the recoil of the weapon.
  • This device is represented on the lower part of the figure 1 .
  • the device comprises a cylinder 3 recovery rod of energy, comprising a piston 24 sliding in the body of the cylinder 3 and secured to a rod 4 which is supported at one end against the recoil mass 1a of the weapon 1.
  • This piston 24 defines a first chamber 6 and a second chamber 5.
  • the second chamber 5 of the cylinder 3 is in communication with the nitrogen chamber 10 and therefore also contains nitrogen.
  • the first chamber 6 is in communication with a fluid accumulator assembly 25.
  • the assembly 25 comprises on the one hand a booster accumulator 15 and on the other hand a storage accumulator 16.
  • the accumulator 15 can be supplied with oil through a pipe 26 leading the return of the oil from the various actuators of the hydraulic circuit (not shown).
  • the accumulator may also be powered by a pump motor 18.
  • the booster accumulator 15 is a low pressure accumulator (pressure of the order of 3 10 5 Pa to 10 6 Pa).
  • the storage accumulator 16 is in the form of a pressurized oil reservoir which is intended to supply one or more devices (not shown) via a service line 27.
  • the storage accumulator 16 is a high pressure accumulator (pressure of the order of 1.5 ⁇ 10 7 Pa at 2.5 ⁇ 10 7 Pa).
  • the chamber 6 of the jack 3 communicates with the assembly 25 by a main pipe 19 which is divided into two branches 11 and 12 each provided with a non-return valve, respectively 13 and 14.
  • the valve 13 allows the passage of compressed fluid only the booster accumulator 15 to the cylinder 3.
  • the valve 14 only allows the supply of the storage accumulator 16 compressed fluid from the piston 3 (the low pressure of the booster accumulator 15 is always lower at the high pressure of the storage accumulator 16).
  • the compressed fluid can be conventionally oil.
  • Each accumulator 15 or 16 will comprise in a conventional manner and not shown a gas chamber isolated from the fluid by a membrane and allowing the pressurization of the accumulator.
  • the figure 2 illustrates the device according to the invention during an intermediate step of the recoil phase of the weapon, that is to say the energy recovery phase, the final position of the weapon not being shown because it is not necessary for understanding the operation.
  • the recoil mass of the weapon 1 has moved back a certain distance along the arrow F2 by driving with it the rod 21 of the cylinder 9.
  • the elastic link 20 fulfills its function and the fluid contained in the chamber 23 is forced back into the chamber 22 which causes the compression of the nitrogen contained in the chamber 10.
  • the pressure of the nitrogen in the chamber 5 increases concomitantly and pushes the piston 24 of the recuperator 3, which forces the oil contained in the first chamber 6.
  • This pressurized oil is led through the valve 14 into the storage tank 16 at high pressure. So we recovered some of the energy produced by the recoil of the weapon. This energy is available in the accumulator 16 to be used at any time, for example via a pipe 27.
  • the figure 3 shows the device according to the invention during the battery return phase of the weapon. It is the pressure of the nitrogen contained in the chamber 10 which, as indicated succinctly above, causes this movement back to the battery of the weapon.
  • the recoil mass of the weapon 1 then pushes the rod 4 of the cylinder 3 (and thus the piston 24) and returns it to its initial position as shown in FIG. figure 1 .
  • This return movement of the piston 24 causes a depression of oil in the main pipe 19 which has the effect of opening the valve 13 and the booster accumulator 15 ensures the oil filling of the first chamber 6 of the cylinder 3.
  • the valve 14 remains closed by the high pressure of the storage recuperator 16 which is greater than the pressure supplied by the booster accumulator 15.
  • the figure 4 illustrates a variant of the recovery device according to the invention.
  • the second chamber 5 of the recovery cylinder 3 is connected to the elastic link 20 by via an oil circuit comprising a pipe 29.
  • This oil circuit is delimited on the side of the nitrogen chamber 10 of the elastic link 20 by a second free piston 17 which isolates the nitrogen and the fuel system. 'oil.
  • the chamber 10 containing the nitrogen no longer communicates with the second chamber 5 of the recovery cylinder 3.
  • the piston 17 carries a rod 31, the output of the elastic link 20, to visualize the oil filling of the system.
  • the operating principle remains generally the same, the nitrogen pressure then applies to the piston 24 of the recovery cylinder 3 via another fluid.
  • This embodiment has the advantage of being safer. Indeed, if a rupture of the pipe 29 occurs by accident, there is no leakage of nitrogen and the elastic link 20 remains functional. Shots therefore remain possible.
  • the figure 5 illustrates another variant embodiment of the recovery device according to the invention.
  • the second chamber 5 of the recovery cylinder 3 is connected to the oil chamber 22 of the elastic linkage 20 of the weapon via a pipe 30.
  • the oil is pushed from the chamber 23 to the chamber 22 and thus to the second chamber 5 of the recovery cylinder 3.
  • the nitrogen pressure of the chamber 10 brings back in battery the recoil mass of the armed.
  • the recoil mass pushes the rod 4 and the oil depression that results in the main pipe 19 causes the oil re-supply of the circuit by the booster accumulator 15.
  • Other variants are of course possible without leaving out of the scope of the invention.
  • this circuit also includes the usual control and safety devices such as manometers and pressure relief valves.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Generation Of Surge Voltage And Current (AREA)
  • Laser Surgery Devices (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Claims (7)

  1. Vorrichtung zur Rückgewinnung (2) der Energie, die beim Rücklauf einer Waffe (1) erzeugt wird, umfassend einen Zylinder (3) zur Rückgewinnung von Energie, der durch den Rücklauf der Waffe betätigt wird, wobei der Zylinder zur Rückgewinnung mit doppelter Wirkung eine erste (6) und eine zweite (5) Kammer umfasst, die durch einen Kolben (24) getrennt sind, wobei die erste Kammer (6) des Zylinders mit einem hydraulischen Versorgungskreis der Waffe verbunden ist, wobei die Vorrichtung dadurch gekennzeichnet ist, dass der Kolben (24) dieses Zylinders (3) das Hydraulikfluid dieses Kreises in einen Vorratsspeicher (16) beim Rücklauf der Waffe druckt, wobei die zweite Kammer (5) des Zylinders zur Rückgewinnung (3) von Energie mit einer elastischen Verbindung (20) der Waffe verbunden ist, die deren Druckbeaufschlagung beim Rücklauf der Waffe gewährleistet, wobei der Zylinder zur Rückgewinnung außerdem eine Stange (4) umfasst, die fest mit dem Kolben (24) verbunden ist, wobei die Stange von der Waffe (1) bei ihrem Rücklauf in Stellung gedrückt wird.
  2. Vorrichtung zur Rückgewinnung (2) der Energie, die beim Rücklauf einer Waffe (1) erzeugt wird, nach Anspruch 1, dadurch gekennzeichnet, dass der Zylinder zur Rückgewinnung (3) von Energie mit dem hydraulischen Versorgungskreis der Waffe mit Hilfe einer Hauptleitung (19) verbunden ist, die sich in wenigstens zwei Sekundärleitungen (11, 12) teilt, die mit ersten (13) und zweiten (14) Rückschlagventilen versehen sind, die den Durchfluss von Fluid in eine einzige Richtung ermöglichen, wobei eine Sekundärleitung (12) die Hauptleitung mit dem Vorratsspeicher (16) verbindet und eine zweite Sekundärleitung (11) die Hauptleitung mit einem Vordruckspeicher (15) verbindet.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das erste Rückschlagventil (13) zwischen dem Vordruckspeicher (15) und der Hauptleitung (19) angeordnet ist, und das zweite Rückschlagventil (14) zwischen der Hauptleitung (19) und dem Vorratsspeicher (16) angeordnet ist, wobei beim Rücklauf der Waffe das erste Rückschlagventil (13) geschlossen ist und das zweite Rückschlagventil (14) geöffnet ist.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Vorratsspeicher (16) das hydraulische Netz der Waffe mit Hilfe einer Betriebsleitung (27) mit unter Druck stehendem Fluid versorgt.
  5. Vorrichtung zur Rückgewinnung von Energie nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die zweite Kammer (5) des Zylinders zur Rückgewinnung (3) mit der Stickstoffkammer (10) der elastischen Verbindung (20) verbunden ist.
  6. Vorrichtung zur Rückgewinnung von Energie nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die zweite Kammer (5) des Zylinders zur Rückgewinnung (3) mit der elastischen Verbindung (20) mit Hilfe eines Ölkreises (29) verbunden ist, der seitens der Stickstoffkammer (10) der elastischen Verbindung (20) durch einen freien Kolben (17) begrenzt wird, der den Stickstoff und den Ölkreis (29) isoliert.
  7. Vorrichtung zur Rückgewinnung von Energie nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die zweite Kammer (5) des Zylinders zur Rückgewinnung (3) mit der Ölkammer (22) der elastischen Verbindung (20) verbunden ist.
EP04290759A 2003-04-03 2004-03-22 Vorrichtung zur Rückgewinnung von der Rückstossenergie einer Waffe Expired - Lifetime EP1464912B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04290759T PL1464912T3 (pl) 2003-04-03 2004-03-22 Urządzenie do odzyskiwania energii wytwarzanej podczas odrzutu broni

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0304163A FR2853408B1 (fr) 2003-04-03 2003-04-03 Dispositif de recuperation de l'energie produite par le recul d'une arme
FR0304163 2003-04-03

Publications (2)

Publication Number Publication Date
EP1464912A1 EP1464912A1 (de) 2004-10-06
EP1464912B1 true EP1464912B1 (de) 2010-07-14

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ID=32843137

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EP04290759A Expired - Lifetime EP1464912B1 (de) 2003-04-03 2004-03-22 Vorrichtung zur Rückgewinnung von der Rückstossenergie einer Waffe

Country Status (7)

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US (1) US7258056B2 (de)
EP (1) EP1464912B1 (de)
AT (1) ATE474201T1 (de)
DE (1) DE602004028068D1 (de)
ES (1) ES2348869T3 (de)
FR (1) FR2853408B1 (de)
PL (1) PL1464912T3 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7594465B2 (en) * 2003-03-07 2009-09-29 Bae Systems Land & Armaments L.P. In bore air regulation system
DE102010051651A1 (de) * 2010-11-17 2012-05-24 Liebherr-Hydraulikbagger Gmbh Arbeitsgerät
US9097475B2 (en) 2012-12-05 2015-08-04 Ra Brands, L.L.C. Gas-operated firearm with pressure compensating gas piston
US9383149B2 (en) 2012-12-05 2016-07-05 Ra Brands, L.L.C. Gas-operated firearm with pressure compensating gas piston
US9212856B2 (en) 2012-12-26 2015-12-15 Ra Brands, L.L.C. Gas cut-off system for firearms
US8950313B2 (en) 2013-01-04 2015-02-10 Ra Brands, L.L.C. Self regulating gas system for suppressed weapons
US8887616B2 (en) 2013-01-11 2014-11-18 Ra Brands, L.L.C. Auto regulating gas system for supressed weapons
US9500423B2 (en) 2014-01-24 2016-11-22 Ra Brands, L.L.C. Method and mechanism for automatic regulation of gas flow when mounting a suppressor to a firearm
US10823523B1 (en) * 2019-09-25 2020-11-03 Mandus Group Llc Temperature compensator for artillery system
EP4379307A1 (de) * 2022-11-30 2024-06-05 BAE SYSTEMS plc Artilleriewaffe
CN115930673A (zh) * 2022-11-30 2023-04-07 山西北方机械制造有限责任公司 一种双向储存高压气体装置
WO2024115876A1 (en) * 2022-11-30 2024-06-06 Bae Systems Plc Artillery weapon
GB2624907A (en) * 2022-11-30 2024-06-05 Bae Systems Plc Artillery weapon

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US3146672A (en) * 1952-08-27 1964-09-01 Philias H Girouard Means for charging hydraulic systems for guns
US3144809A (en) * 1952-08-27 1964-08-18 Philias H Girouard Breech block operating mechanism
DE2335649C2 (de) * 1973-07-13 1983-12-08 Rheinmetall GmbH, 4000 Düsseldorf Vorrichtung zum Entnehmen eines Teils der Rückstoßenergie für eine Waffenfunktion eines Geschützes
US4046056A (en) * 1976-04-05 1977-09-06 The Garrett Corporation Pneumatic gun system and method
US4296670A (en) * 1979-06-29 1981-10-27 General Electric Company Ordnance recoil energy control and recovery system
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FR2789760B1 (fr) * 1999-02-16 2001-12-07 Tda Armements Sas Dispositif anti-recul avec frein, compensateur du frein et recuperateur

Also Published As

Publication number Publication date
ATE474201T1 (de) 2010-07-15
FR2853408B1 (fr) 2007-11-30
PL1464912T3 (pl) 2010-12-31
ES2348869T3 (es) 2010-12-16
EP1464912A1 (de) 2004-10-06
US20040216598A1 (en) 2004-11-04
FR2853408A1 (fr) 2004-10-08
US7258056B2 (en) 2007-08-21
DE602004028068D1 (de) 2010-08-26

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