EP0167067B1 - Régulateur de cadence de tir pour arme à feu fonctionnant par action des gaz - Google Patents

Régulateur de cadence de tir pour arme à feu fonctionnant par action des gaz Download PDF

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Publication number
EP0167067B1
EP0167067B1 EP85107606A EP85107606A EP0167067B1 EP 0167067 B1 EP0167067 B1 EP 0167067B1 EP 85107606 A EP85107606 A EP 85107606A EP 85107606 A EP85107606 A EP 85107606A EP 0167067 B1 EP0167067 B1 EP 0167067B1
Authority
EP
European Patent Office
Prior art keywords
gas
shot
tube
pipe
velocity regulator
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
Application number
EP85107606A
Other languages
German (de)
English (en)
Other versions
EP0167067A1 (fr
Inventor
Werner Bosshard
Willi Schröder
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0167067A1 publication Critical patent/EP0167067A1/fr
Application granted granted Critical
Publication of EP0167067B1 publication Critical patent/EP0167067B1/fr
Expired legal-status Critical Current

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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
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
    • F41A5/26—Arrangements or systems for bleeding the gas from the barrel
    • F41A5/28—Adjustable systems

Definitions

  • the invention relates to a cadence controller on a firearm operated by gas pressure, with a temperature-dependent throttle element which regulates the gas pressure by changing the cross section of a gas channel, which is arranged to be movable for changing the cross section and is moved by a device which has a tube.
  • the device has a tube which expands through the hot gases and thereby reduces the cross section of the throttle. Due to the reduced throttle cross-section, less gas reaches the gas piston, which means that the cadence should remain constant even with a long series fire.
  • the tube expands over time, but also the housing in which the tube is located, as a result of which the throttle cross section increases again and the cadence does not remain constant.
  • a temperature-dependent throttle element is also known (see GB-A-279 729) which has two concentric tubes which expand to different extents when hot gases pass through and which are connected to one another at one end. With this throttle element, the passage cross section is also reduced. A different coefficient of expansion is not provided.
  • This throttle body is otherwise suitable for heating systems and not for weapons.
  • the present invention aims to provide a cadence controller which is simple and reliable in construction and which prevents an inadmissible increase in cadence when the firearm is heated.
  • the cadence controller according to the invention in that the device has an additional tube, the two tubes being arranged concentrically to one another, expanding to different extents when hot gases pass through and which are connected to one another at their end, and by the outer tube has a larger coefficient of expansion than the inner tube and therefore expands more evenly when heated than the inner tube.
  • This weapon barrel 1 has the transverse bore 2 through which gas is withdrawn and which opens into the gas sampling tube 3, which is arranged parallel to the weapon barrel 1.
  • the gas sampling tube 3 has at its lower end the transverse bore 4, which opens into the cadence controller 21.
  • the cadence control 21 and the weapon barrel 1 are fastened in the weapon housing 6, of which only a very small section is shown.
  • the cadence controller 21 has the cylinder 7, in which the gas piston 8 is slidably mounted. With the help of the gas piston 8, the firearm is actuated in a manner known per se and therefore not shown in detail, i.e. after each shot, the next shot is triggered with the help of the gas piston 8 in a series fire.
  • the gas drawn from the weapon barrel 1 with the aid of the transverse bore 2, the gas sampling tube 3 and the transverse bore 4 serves to actuate the gas piston 8, the cadence regulator 21 having the task of controlling the supply of the extracted gas to the gas piston.
  • the structure of the cadence regulator 21 is now as follows:
  • the cylinder 7, in which the gas piston 8 is slidably mounted, has the bottom 9 in its central part, which has the opening 10.
  • the cylinder 7 has in its central part the outer annular groove 12, into which the transverse bore 4 opens.
  • the bottom 9 of the cylinder 7 has, parallel to the central opening 10, a number of bores 13 which on the one hand open into the outer annular groove 12 and on the other hand into an upper chamber 14. From this chamber 14 the gas can on the one hand unhindered through the central bore 10 the gas piston 8 act and on the other hand flow through a bore 22 of an insert body 23, which is also located in the upper chamber 14.
  • a cylindrical tube 24 is attached, which is preferably made of aluminum.
  • This second cylindrical tube 26 is arranged concentrically to the first cylindrical tube 24 and is located inside the first tube 24.
  • a throttle body 27 is attached at the lower end of the inner cylindrical tube 26 .
  • the throttle body 27 and the insert body 23 there is a throttle opening which can be adjusted with the aid of the pin 25 screwed into the tube 24.
  • the gases can pass from the bore 22 of the insert body 23 through this throttle opening between the two tubes 24 and 26.
  • the outer tube 24 has outlet openings 28 at its upper end through which the gases present between the two tubes 24, 26 can reach the atmosphere. With a locking member 29, the pin 25 can be secured against unintentional rotation.
  • the mode of operation of the cadence regulator 21 is as follows:

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Toys (AREA)
  • Feed For Specific Animals (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Claims (3)

1. Régulateur de cadence de tir pour arme à feu fonctionnant par action des gaz, avec un organe d'étranglement (11) dépendant de la température, et assurant la régulation de la pression des gaz par modification de la section transversale d'un canal de gaz, cet organe étant prévu mobile pour permettre la modification de section transversale, et étant déplacé par un dispositif (24, 26), comportant un tube (26), régulateur caractérisé en ce que le dispositif (26, 24) comporte un tube supplémentaire (24), les deux tubes (24, 26) étant disposés concentriquement l'un par rapport à l'autre, se dilatant de façon fortement différente lorsqu'ils sont parcourus par des gaz chauds, et qui sont reliés ensemble à leur extrémité, le tube externe (24) ayant un plus grand coefficient de dilatation que le tube interne (26) et se dilatant en conséquence plus fortement pour un échauffement identique que le tube interne (26).
2. Régulateur de cadence selon la revendication 1, caractérisé en ce que, lors de l'échauffement des deux tubes (24, 26), la section transversale d'étranglement augmente.
3. Régulateur de cadence selon la revendication 1, caractérisé en ce que le tube externe (24) est en aluminium, tandis que le tube interne (26) est en acier.
EP85107606A 1984-07-03 1985-06-20 Régulateur de cadence de tir pour arme à feu fonctionnant par action des gaz Expired EP0167067B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3187/84 1984-07-03
CH318784 1984-07-03

Publications (2)

Publication Number Publication Date
EP0167067A1 EP0167067A1 (fr) 1986-01-08
EP0167067B1 true EP0167067B1 (fr) 1987-12-09

Family

ID=4250517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107606A Expired EP0167067B1 (fr) 1984-07-03 1985-06-20 Régulateur de cadence de tir pour arme à feu fonctionnant par action des gaz

Country Status (7)

Country Link
US (1) US4611525A (fr)
EP (1) EP0167067B1 (fr)
JP (1) JPS6124999A (fr)
BR (1) BR8503166A (fr)
DE (1) DE3561177D1 (fr)
ES (1) ES8702644A1 (fr)
IL (1) IL75677A0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9719739B2 (en) 2014-02-06 2017-08-01 Bernard (Bernie) T. Windauer Gas block balancing piston for auto-loading firearm

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH669839A5 (fr) * 1986-03-20 1989-04-14 Oerlikon Buehrle Ag
DE19921804A1 (de) * 1999-05-11 2000-11-16 Dynamit Nobel Ag Aufsatzvorrichtung für die Gasabnahme einer automatischen Waffe
US7610844B2 (en) 2004-09-17 2009-11-03 Colt Defense Llc Firearm having an indirect gas operating system
DE102005062758B3 (de) * 2005-12-23 2007-06-21 Heckler & Koch Gmbh Gasabnahmeanordnung und Lauf bzw. Waffe mit einer Gasabnahmeanordnung
US20100218671A1 (en) * 2008-12-30 2010-09-02 Magpul Industries Corporation Adjustable and Suppressible Gas Operating System for an Automatic Firearm
US8528458B2 (en) 2011-07-27 2013-09-10 Bernard T. Windauer Pressure-regulating gas block
US9766026B2 (en) * 2013-10-21 2017-09-19 Sig Sauer, Inc. Gas operating system for an automatic pistol-caliber firearm
RU2569433C1 (ru) * 2014-09-05 2015-11-27 Акционерное общество "Конструкторское бюро приборостроения им. академика А.Г. Шипунова" Газоотводный двигатель оружия
US9863733B2 (en) 2015-01-13 2018-01-09 Machine Gun Armory, L.L.C. Barrel with integrated gas channel
RU209946U1 (ru) * 2019-11-25 2022-03-24 Владимир Александрович Драгочинский Газоотводная система огнестрельного автоматического оружия
US20230228507A1 (en) * 2022-01-14 2023-07-20 KNS Precision, Inc. Adjustable gas valve for firearm

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR505576A (fr) * 1919-10-07 1920-08-02 Frederic Perdrizet Purgeur automatique d'eau de condensation de vapeur
GB279729A (en) * 1927-05-17 1927-11-03 Bailey Alfred John Improvements in or relating to steam traps or separators
LU33752A1 (fr) * 1955-07-26
DE1108024B (de) * 1956-12-08 1961-05-31 Commissariat Energie Atomique Vorrichtung zum Regeln geringer Gasstroemungen
CH511414A (de) * 1969-07-11 1971-08-15 Oerlikon Buehrle Ag Kadenzregler an einer durch Gasdruck betätigten Feuerwaffe
JPS5010479A (fr) * 1973-06-04 1975-02-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9719739B2 (en) 2014-02-06 2017-08-01 Bernard (Bernie) T. Windauer Gas block balancing piston for auto-loading firearm

Also Published As

Publication number Publication date
ES544798A0 (es) 1986-12-16
JPS6124999A (ja) 1986-02-03
IL75677A0 (en) 1985-10-31
JPH0557519B2 (fr) 1993-08-24
EP0167067A1 (fr) 1986-01-08
US4611525A (en) 1986-09-16
DE3561177D1 (en) 1988-01-21
ES8702644A1 (es) 1986-12-16
BR8503166A (pt) 1986-03-25

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