US3157124A - Spin stabilized hollow charge projectile - Google Patents

Spin stabilized hollow charge projectile Download PDF

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Publication number
US3157124A
US3157124A US164001A US16400162A US3157124A US 3157124 A US3157124 A US 3157124A US 164001 A US164001 A US 164001A US 16400162 A US16400162 A US 16400162A US 3157124 A US3157124 A US 3157124A
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US
United States
Prior art keywords
projectile
charge
insert
spin
hollow
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
US164001A
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English (en)
Inventor
Muller Helmut
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 Industrie AG
Original Assignee
Rheinmetall 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 Rheinmetall GmbH filed Critical Rheinmetall GmbH
Application granted granted Critical
Publication of US3157124A publication Critical patent/US3157124A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
    • F42B12/12—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge rotatably mounted with respect to missile housing

Definitions

  • the present invention relates to a spin-stabilized hollow-charge projectile, consisting as usual of a body with an explosive charge and a detonator and also an insert.
  • the object of the present invention is to reduce or completely eliminate this loss of power in spin-stabilized hollow-charge projectiles.
  • the hollow-charge projectile according to the invention which likewise comprises a section rotatably mounted in the interior of the projectile body and driving means therefor.
  • a characteristic feature of the type of construction according to the invention is that the rotatably mounted parts of the projectile consist only of the insert connected to the driving means and designed as a coaxial body of revolution.
  • the hollow-charge projectile according to the invention is based on two new discoveries connected with explosion engineering.
  • the malfunctioning of a strongly rotating hollow charge is due especially to the rotation of the insert mass and only to a very small extent to the rotation of the explosive.
  • the explosive charge must not rest absolutely closely against the insert in order to achieve a high penetration effect, but rather there should also be a narrow circularsymmetrical gap between the insert and explosive charge. In this way, it is possible by the method according to the invention to obtain full spin compensation when the projectile reaches the target, in that precautions are taken to see that the insert is not rotating or is rotating only slowly when the projectile reaches the target, whereas the projectile body is rotating together with the explosive charge at the speed due to the spin.
  • FIG. 1 shows a hollow-charge projectile designed for the application of pressure to the driving impeller by atmospheric air
  • FIG. 2 shows a hollow-charge projectile designed for the application of pressure by powder gases and by atmospheric air.
  • the hollow-charge projectile according to FIG. 1 has an insert 1 which is fixedly connected to the driving impeller Z; the two parts can rotate together with respect to the projectile body 3 and the explosive charge 4.
  • An antifriction bearing 5 is arranged in the supporting member '7 fixedly connected to the nose 6 of the projectile body 3, while a plain pivot bearing #8 is let into the explosive charge 4. Said bearing rests on a spring 9 which yields on firing until the gap 10, which separates the insert 1 from the explosive charge 4, is closed.
  • the gap 10 can be filled with a liquid of low viscosity.
  • a high liquid pressure is then produced for a short time in the gap 10.
  • the volume of liquid can either be kept constant in the gap 10 on firing or part of the liquid can be forced through the labyrinth packing 14; in the last-mentioned case, the planned width of the gap 10 is restored only when the acceleration of the projectile abates, in accordance with the dimensioning of the spring 9 and the load applied to the driving impeller 2 by thedynamic air pressure during the in the gap 10 which have been described, only a very slight rotation which is not harmful to the hollow-charge effect is imparted to the insert l on firing owing to the liquid friction and theiadditional bearing frictiong-this rotation being compensated in a very short -time bya particularly lightlyconstructed driving'impeller '2, so that, even-for
  • FIG. 2 shows "a hollow charge projectilewith an advan tageous design of the driving impeller 2;
  • the air accumuiated ordammednpduringtheflight ofthe projectile is fedfcentrallyito the .driving impeller 2 through an air duct 'coaxialuwithIsaidprojectile and the connected ducts116," so that: thetul'l ramspressure is utilised for said impeller
  • a hollow space 17 in which, in addition, there canrbe accommodated: a powder propelling composition which is advantageouslyiignited-immediatelyas the projectile leaves the barrel.
  • the .powder gases escape throughithe bores:
  • impeller 2 substantially morestrongly: than it is possible for the dynamic air-pressure to do. With this arrangement, even without providingthe above-describedsliquid cushion, theispeedof the.
  • hollow-chargeprojectiles described abovewith reference to FIGS.I1 and1'2 merely'irepresent embodiments of the present-inventionuwhich:is by no means limited thereto; but covers in principle all hollow-charge projec-' tiles provided with' al more or less marked spin compensationof the insert;
  • Method-of increasing" the penetrating power of a hollow-charge projectile stabilized in flight by spin comprising rotating the projectile body together with the explos'ivecharge at a speeddependent on thespin at least on reaching the target, and rotating the insert in the opposite'direction to the point of approximate compensation"- of the movement due to the spin.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
US164001A 1961-01-05 1962-01-03 Spin stabilized hollow charge projectile Expired - Lifetime US3157124A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER29404A DE1137351B (de) 1961-01-05 1961-01-05 Drallstabilisiertes Hohlladungsgeschoss

Publications (1)

Publication Number Publication Date
US3157124A true US3157124A (en) 1964-11-17

Family

ID=7402995

Family Applications (1)

Application Number Title Priority Date Filing Date
US164001A Expired - Lifetime US3157124A (en) 1961-01-05 1962-01-03 Spin stabilized hollow charge projectile

Country Status (3)

Country Link
US (1) US3157124A (enrdf_load_stackoverflow)
DE (1) DE1137351B (enrdf_load_stackoverflow)
NL (2) NL135094C (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302567A (en) * 1964-03-09 1967-02-07 Dresser Ind Shaped-charge booster
US3439613A (en) * 1964-11-26 1969-04-22 Bolkow Gmbh Self-propelled hollow charge having concave liner with propellant contained therein
US4102271A (en) * 1976-02-12 1978-07-25 Rheinmetall Gmbh. Armor-piercing tandem shell or projectile
US4982665A (en) * 1973-11-29 1991-01-08 The United States Of America As Represented By The Secretary Of The Navy Shaped charge
US5194690A (en) * 1990-02-21 1993-03-16 Teledyne Industries, Inc. Shock compression jet gun
US5235916A (en) * 1966-01-10 1993-08-17 Hughes Missile Systems Company Warhead directed-charge positioner system
EP2487451A3 (de) * 2011-02-10 2015-04-29 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Hohlladungspenetrator
US10215543B1 (en) * 2012-05-10 2019-02-26 Mark Benson Linear explosive disruptor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8719846D0 (en) * 1987-08-21 1987-09-30 Ici Plc Shaped primer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE564801A (enrdf_load_stackoverflow) * 1957-02-19
US2623465A (en) * 1949-02-15 1952-12-30 Brandt Soc Nouv Ets Projectile
US2787958A (en) * 1952-09-15 1957-04-09 Belge De Mecanique Et D Armeme Projectile
US2900873A (en) * 1955-11-10 1959-08-25 Haut Rhin Manufacture Machines Ordnance
US2981188A (en) * 1955-10-10 1961-04-25 Henry S Lipinski Spin-stabilized projectile with nonrotating shaped charge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623465A (en) * 1949-02-15 1952-12-30 Brandt Soc Nouv Ets Projectile
US2787958A (en) * 1952-09-15 1957-04-09 Belge De Mecanique Et D Armeme Projectile
US2981188A (en) * 1955-10-10 1961-04-25 Henry S Lipinski Spin-stabilized projectile with nonrotating shaped charge
US2900873A (en) * 1955-11-10 1959-08-25 Haut Rhin Manufacture Machines Ordnance
BE564801A (enrdf_load_stackoverflow) * 1957-02-19
GB886225A (en) * 1957-02-19 1962-01-03 Rheinmetall Gmbh Improvements in and relating to spin-stabilised hollow charge projectiles

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302567A (en) * 1964-03-09 1967-02-07 Dresser Ind Shaped-charge booster
US3439613A (en) * 1964-11-26 1969-04-22 Bolkow Gmbh Self-propelled hollow charge having concave liner with propellant contained therein
US5235916A (en) * 1966-01-10 1993-08-17 Hughes Missile Systems Company Warhead directed-charge positioner system
US4982665A (en) * 1973-11-29 1991-01-08 The United States Of America As Represented By The Secretary Of The Navy Shaped charge
US4102271A (en) * 1976-02-12 1978-07-25 Rheinmetall Gmbh. Armor-piercing tandem shell or projectile
US5194690A (en) * 1990-02-21 1993-03-16 Teledyne Industries, Inc. Shock compression jet gun
US5303633A (en) * 1990-02-21 1994-04-19 Teledyne Industries, Inc. Shock compression jet gun
EP2487451A3 (de) * 2011-02-10 2015-04-29 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Hohlladungspenetrator
US10215543B1 (en) * 2012-05-10 2019-02-26 Mark Benson Linear explosive disruptor

Also Published As

Publication number Publication date
NL135094C (enrdf_load_stackoverflow)
DE1137351B (de) 1962-09-27
NL272938A (enrdf_load_stackoverflow)

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