EP0379952B1 - Gasdüse für Gasbohrungen - Google Patents

Gasdüse für Gasbohrungen Download PDF

Info

Publication number
EP0379952B1
EP0379952B1 EP90100885A EP90100885A EP0379952B1 EP 0379952 B1 EP0379952 B1 EP 0379952B1 EP 90100885 A EP90100885 A EP 90100885A EP 90100885 A EP90100885 A EP 90100885A EP 0379952 B1 EP0379952 B1 EP 0379952B1
Authority
EP
European Patent Office
Prior art keywords
gas
gas nozzle
nozzle
bore
bores
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
EP90100885A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0379952A2 (de
EP0379952A3 (de
Inventor
Helmut Mäder
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.)
Mauser Werke Oberndorf GmbH
Original Assignee
Mauser Werke Oberndorf GmbH
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 Mauser Werke Oberndorf GmbH filed Critical Mauser Werke Oberndorf GmbH
Priority to AT90100885T priority Critical patent/ATE98012T1/de
Publication of EP0379952A2 publication Critical patent/EP0379952A2/de
Publication of EP0379952A3 publication Critical patent/EP0379952A3/de
Application granted granted Critical
Publication of EP0379952B1 publication Critical patent/EP0379952B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a gas nozzle for gas bores in workpieces, in particular for use in gas extraction bores of weapon barrels, with a device for mounting and dismounting in / from such gas bores.
  • US-A-2,775,920 discloses an automatic on-board cannon for aircraft with a gun barrel and a locking ring attached to the gun barrel.
  • This locking ring has gas channels running parallel to the gun barrel, which are connected to the gun barrel by radial bores.
  • nozzles for pressure control are screwed into the axial gas channels.
  • the gas nozzle has a projecting pin with an external thread, onto which a dismantling tool in the form of a hollow nut with an internal thread can be screwed, and in that an assembly tool is provided with an internal bore and an external thread, which is provided with an internal thread of the nozzle bore is engaged and acts axially against the shoulder of the gas nozzle around the pin.
  • the hollow nut can have a tool engagement device for the rotary entrainment in its outwardly facing end face.
  • the lower fitting shape of the gas nozzle can be formed in one piece with the gas nozzle and have a design that deviates from the symmetrical shape.
  • an optionally straight, curved or angled nozzle bore can be provided.
  • a gas nozzle with the features of the invention facilitates both its assembly and its disassembly in a gas bore of a weapon barrel.
  • a tight fit is achieved in all operating conditions in a nozzle bore. Since the gas nozzle is fitted into the recess by means of a threaded screw connection with the assembly tool, tilting of the gas nozzle or pressing up is avoided in principle. Due to the fits on the lower end of the gas nozzle, this gas nozzle only ever fits into a recess provided for it, while at the same time ensuring a correct fit with respect to the nozzle bore and the gas bore.
  • the gas nozzle 1 consists of a cylindrical base body with a lower end face 2, which has a fit 5 or 5.1 corresponding to Figures 3 and 4. These fits 5 and 5.1 of the gas nozzle 1 are inserted into corresponding recesses in the workpiece 9 and permit the insertion of a gas nozzle 1 only in the recess provided for them. In addition, this always results in the same axis between the nozzle bores 13 and the gas bore 10.
  • the upper end face 4 of the gas nozzle 1 has a pin 3 with an external thread 6 and with a tool engagement device 11 for the rotary entrainment of the gas nozzle 1.
  • the external thread 6 serves to receive a screw-on dismantling tool 14 in the form of a hollow nut with an internal thread 15.
  • the gas nozzle 1 is therefore dismantled by unscrewing the tool 14 and pulling the gas nozzle 1 out of the nozzle bore 13 after the assembly tool 12 has been removed.
  • the assembly tool 12 has an external thread 8 and can be screwed into the internal thread 7 of the nozzle bore 13.
  • the assembly tool 12 is in contact with its axial end face on the shoulder 16 of the gas nozzle 1 around the pin 3.
  • the nozzle 1 shown in FIG. 1 shows a rectilinear inner nozzle passage bore 17 which is connected at its opposite ends to a gas extraction bore 10 of the workpiece 9.
  • the workpiece 9 is a weapon barrel in the example shown.
  • a total of three gas nozzles 1 are arranged at an angle of 120 ° to one another on a cross-sectional area.
  • other arrangements and other quantities of gas nozzles in a cross-sectional plane are also possible.
  • the fits 5 and 5.1 according to FIGS. 3 and 4 can be formed differently.
  • the fits 5 and 5.1 formed in one piece with the gas nozzle 1 are designed in a design that deviates from the symmetrical shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP90100885A 1989-01-25 1990-01-17 Gasdüse für Gasbohrungen Expired - Lifetime EP0379952B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90100885T ATE98012T1 (de) 1989-01-25 1990-01-17 Gasduese fuer gasbohrungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3902014 1989-01-25
DE3902014A DE3902014A1 (de) 1989-01-25 1989-01-25 Gasduese fuer gasbohrungen

Publications (3)

Publication Number Publication Date
EP0379952A2 EP0379952A2 (de) 1990-08-01
EP0379952A3 EP0379952A3 (de) 1991-09-25
EP0379952B1 true EP0379952B1 (de) 1993-12-01

Family

ID=6372680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100885A Expired - Lifetime EP0379952B1 (de) 1989-01-25 1990-01-17 Gasdüse für Gasbohrungen

Country Status (4)

Country Link
EP (1) EP0379952B1 (es)
AT (1) ATE98012T1 (es)
DE (2) DE3902014A1 (es)
ES (1) ES2047715T3 (es)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1808052A (en) * 1931-01-31 1931-06-02 George M Mccann Gun
US2775920A (en) * 1950-05-01 1957-01-01 Paul H Dixon Bolt spline
DE2249545A1 (de) * 1972-10-10 1974-04-18 Eta Corp Maschinenrohrfeuerwaffe des gasdruckladesystems

Also Published As

Publication number Publication date
ES2047715T3 (es) 1994-03-01
DE59003638D1 (de) 1994-01-13
EP0379952A2 (de) 1990-08-01
EP0379952A3 (de) 1991-09-25
ATE98012T1 (de) 1993-12-15
DE3902014A1 (de) 1990-07-26

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