DE1044675B - Twist profile high gas liner for floor run - Google Patents

Twist profile high gas liner for floor run

Info

Publication number
DE1044675B
DE1044675B DEB36086A DEB0036086A DE1044675B DE 1044675 B DE1044675 B DE 1044675B DE B36086 A DEB36086 A DE B36086A DE B0036086 A DEB0036086 A DE B0036086A DE 1044675 B DE1044675 B DE 1044675B
Authority
DE
Germany
Prior art keywords
high gas
profile high
twist profile
field
floor run
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.)
Pending
Application number
DEB36086A
Other languages
German (de)
Inventor
Karl Burgsmueller
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEB36086A priority Critical patent/DE1044675B/en
Publication of DE1044675B publication Critical patent/DE1044675B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/16Barrels or gun tubes characterised by the shape of the bore
    • F41A21/18Grooves-Rifling

Description

Drallzugprofil hoher Gasliderung für Geschoßläufe Im allgemeinen liegen die Begrenzungskreisbögen von Zügen und Feldern in der Schnittansicht eines gezogenen Geschoßlaufes konzentrisch zueinander. Die Abb. I zeigt einen Querschnitt durch einen solchen herkömmlichen Lauf, in welchem a das Felderkaliber, b das Zugkaliber und c die Zugbreite darstellen. Die Abb. I a zeigt einen Ausschnitt des Laufes im Schnitt mit Geschoß. Bei Rechtsdrall vermitteln die Flanken x dem Geschoß diejenige Energie, die für die seinen Freiflug stabilisierende Rotation aufzuwenden ist. Da die Flanken x beispielsweise im Falle des Kalibers 8 X 57 JS bei 12 g Geschoßgewicht während der Vermittlung der Geschoßrotation den Druck von etwa 600 kg zusammen auszuhalten haben, so wird das Material des Geschoßführungsmantels tangential gestaucht, und zwar um so mehr, je größer die Geschoßbeschleunigung ist. Durch diese Stauchung des Geschoßführungsmantelmaterials ergibt sich dann bei der Flanke y zwischen dieser und dem Geschoßmantel ein Spielraum rhombischen Querschnittes, der auch dann nicht vermeidbar ist, wenn - wie bereits vorgeschlagen - die nicht aktiven Felderflanken eine geringere Höhe aufweisen. Durch diesen Spielraum dringen die heißen Treibgase ungehindert hindurch, erhitzen das Laufmaterial und korrodieren dasselbe. Aus diesem Umstand erklärt sich auch, daß das Fortbrennen der Züge im Lauf an der an der Rotationsförderung des Geschosses unbeteiligten Rückseite der Felder, also bei der Flanke y, beginnt.Twist tension profile with high gas flare for projectile barrels Generally lying the delimiting arcs of trains and fields in the sectional view of a drawn one Bullet barrel concentric to each other. Fig. I shows a cross section through such a conventional barrel, in which a the field caliber, b the train caliber and c represent the train width. Fig. I a shows a section of the barrel in Section with bullet. In the case of a right-hand twist, the flanks x convey that to the projectile Energy that is expended for the rotation stabilizing its free flight. There the flanks x, for example, in the case of the 8 X 57 JS caliber with a bullet weight of 12 g to withstand the pressure of about 600 kg together during the mediation of the bullet rotation have, the material of the bullet guide jacket is compressed tangentially, and the greater the projectile acceleration, the more so. By this compression of the projectile guide jacket material then results at the flank y between this and the projectile jacket a rhombic cross-section clearance, which even then does not can be avoided if - as already proposed - the field edges are not active have a lower height. The hot propellant gases penetrate through this space unhindered through, heat the barrel material and corrode it. For this This is also explained by the fact that the trains burned away in the course of the rotation conveyor of the storey uninvolved back of the fields, i.e. at the flank y, begins.

Abb. 1I zeigt einen Querschnitt durch einen erfindungsgemäßen Lauf, worin wiederum a das Felderkaliber und b das Zugkaliber darstellen. Die übliche Felderbreite f ist von Z bis N wie beim herkömmlichen Lauf auch hier erhalten geblieben, jedoch verläuft das passive Feld d in einem Kreisbogen von der Höhe des Feldes bei N bis zum Fuß des benachbarten Feldes bei W. Der Verlauf dieses Feldes d ist auch in Abb. I unten noch einmal zur besseren Veranschaulichung (strichpunktierter Kreisbogen) eingezeichnet worden.Fig. 1I shows a cross section through a barrel according to the invention, in which a represents the field caliber and b the pull caliber. The usual field width f has been retained from Z to N as in the conventional run, but the passive field d runs in an arc from the height of the field at N to the foot of the adjacent field at W. The course of this field d is also in Fig. I below again for better illustration (dash-dotted circular arc).

In Abb. 11a ist das erfindungsgemäße Drallzugprofil mit Geschoß veranschaulicht. Wenn hierbei das Material des Geschoßführungsmantels bei x durch die Übertragung der Kräfte für die Geschoßrotation die weiter oben schon behandelte tangentiale Stauchung erfährt, so wird der daraus sich ergebende Luftspalt zwischen d und dem Geschoßführungsmantel eine nur geringe, für den Gasdurchtritt unbedeutende Größe annehmen.In Fig. 11a the twist tension profile according to the invention is illustrated with a projectile. If here the material of the bullet guide jacket at x through the transfer of the forces for the projectile rotation is the tangential one already discussed above Experiences compression, the resulting air gap between d and the Bullet guide jacket is only a small size that is insignificant for the passage of gas accept.

In Abb.III ist schließlich ein Querschnitt durch ein erfindungsgemäßes Laufprofil dargestellt, das an Stelle von vier wirksamen Drallflanken x beispielsweise doppelt so, viele mit nur halber Höhe aufweist. Hierdurch kann bei gleicher spezifischer Belastung des Laufmaterials und des Geschoßführungsmantelmaterials diese geringere und daher leichter herstellbare Felderhöhe vorgesehen werden. Auf die Erhaltung der üblichen Felderbreite wurde hier verzichtet.Finally, in Fig.III is a cross section through an inventive Running profile is shown, instead of four effective twist flanks x, for example twice as much, many with only half the height. This allows more specific Loading of the barrel material and the bullet guide jacket material this lower and therefore more easily manufacturable field height can be provided. On the preservation the usual field width has been omitted here.

Claims (1)

PATENTANSPRUCH: Drallzugprofil hoher Gasliderung für Geschoßläufe, dadurch gekennzeichnet, daß die Züge durch Kreisbögen (d) vom Fuß (W) jeder Flanke (x) zur Höhe (N) des benachbarten Feldes (f) gebildet werden. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 48101; schweizerische Patentschrift Nr. 103 682; USA.-Patentschrift Nr. 840085. PATENT CLAIM: Twisted pull profile with high gas lofting for projectile barrels, characterized in that the pulls are formed by circular arcs (d) from the foot (W) of each flank (x) to the height (N) of the adjacent field (f) . Documents considered: German Patent No. 48101; Swiss Patent No. 103 682; U.S. Patent No. 840 085.
DEB36086A 1955-06-11 1955-06-11 Twist profile high gas liner for floor run Pending DE1044675B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB36086A DE1044675B (en) 1955-06-11 1955-06-11 Twist profile high gas liner for floor run

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB36086A DE1044675B (en) 1955-06-11 1955-06-11 Twist profile high gas liner for floor run

Publications (1)

Publication Number Publication Date
DE1044675B true DE1044675B (en) 1958-11-20

Family

ID=6964787

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB36086A Pending DE1044675B (en) 1955-06-11 1955-06-11 Twist profile high gas liner for floor run

Country Status (1)

Country Link
DE (1) DE1044675B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997045690A1 (en) * 1996-05-31 1997-12-04 Sharunova, Elena Rifled barrel
DE102012000686A1 (en) 2012-01-17 2013-07-18 Rheinmetall Waffe Munition Gmbh Gun barrel with chromed inner profile
WO2017220348A1 (en) 2016-06-23 2017-12-28 Rheinmetall Waffe Munition Gmbh Weapon barrel having an internal profile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE48101C (en) * G. BUSER in Gelterkinden, Schweiz Firearm tubes with trains of different cross-sections
US840085A (en) * 1904-08-02 1907-01-01 Peter Mulock Firearm.
CH103682A (en) * 1923-07-17 1924-03-01 Grunder Friedrich Profile for trains in the barrels of firearms.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE48101C (en) * G. BUSER in Gelterkinden, Schweiz Firearm tubes with trains of different cross-sections
US840085A (en) * 1904-08-02 1907-01-01 Peter Mulock Firearm.
CH103682A (en) * 1923-07-17 1924-03-01 Grunder Friedrich Profile for trains in the barrels of firearms.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997045690A1 (en) * 1996-05-31 1997-12-04 Sharunova, Elena Rifled barrel
DE102012000686A1 (en) 2012-01-17 2013-07-18 Rheinmetall Waffe Munition Gmbh Gun barrel with chromed inner profile
WO2013107578A1 (en) 2012-01-17 2013-07-25 Rheinmetall Waffe Munition Gmbh Weapon barrel with a chrome-plated inner profile
WO2017220348A1 (en) 2016-06-23 2017-12-28 Rheinmetall Waffe Munition Gmbh Weapon barrel having an internal profile
DE102016111571A1 (en) 2016-06-23 2017-12-28 Rheinmetall Waffe Munition Gmbh Gun barrel with inner profile

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