US3662684A - Hollow charge warhead - Google Patents

Hollow charge warhead Download PDF

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Publication number
US3662684A
US3662684A US882045A US3662684DA US3662684A US 3662684 A US3662684 A US 3662684A US 882045 A US882045 A US 882045A US 3662684D A US3662684D A US 3662684DA US 3662684 A US3662684 A US 3662684A
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US
United States
Prior art keywords
deflector
casing
conical
detonator
hollow charge
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
US882045A
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English (en)
Inventor
Gaston Jean Olivier Bodinaux
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.)
LES FERGES DE ZEEBRUGGE
Original Assignee
LES FERGES DE ZEEBRUGGE
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 LES FERGES DE ZEEBRUGGE filed Critical LES FERGES DE ZEEBRUGGE
Application granted granted Critical
Publication of US3662684A publication Critical patent/US3662684A/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
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • F42B1/024—Shaped or hollow charges provided with embedded bodies of inert material

Definitions

  • Pendegrass AttorneyBacon & Thomas 57 ABSTRACT A hollow charge warhead having an inert deflecting element embedded within said charge, said element being of a generally frusto-conical shape, the small basis of which being directed towards a punctiform detonator.
  • the efficiency of the suggested solution will be appreciated in that, when proceeding with test firings, blindages with a thickness of 450 mm have been regularly pierced, the penetration openings of the tips having only a very small widening.
  • a. in the explosive charge is embedded an element under the form of a truncated revolution body the large base of which is directed to the liner and the small base, towards a pin-point detonator;
  • the distance between the large base of the said element and the tip of the said liner is at least equal to the halfcaliber size.
  • the inner wall of the head casing will have, in front of the conical surface of the said element, a truncated length the top angle of which is lower than that of the said conical surface of the element.
  • intersection circle of the conical surface of the said element with the plane of its large basis is advantageously situated in the cylindrical surface defined by the inner wall of the casing.
  • the minimum distance between the element and the inner wall of the casing is of about one-fifteenth of the inner diame ter of the latter.
  • the thickness of the said element i.e., the height of the resolution body, is preferably between the half inner diameter and the half outer diameter or caliber size of the casing.
  • FIG. 1 is a vertical section of a rocket according to the invention
  • FIG. 2 shows the rock according to FIG. 1 in axial section
  • FIG. 3 shows, on an enlarged scale, the head of the rocket illustrated in FIG. 2 and FIG. 4 shows the geometry of the hollow charge.
  • the rocket shown in FIG. 1 comprises a head 1 a motor 2 and spreadable fins 3.
  • the head 1 comprises a cylindrical tubular casing 4 on the front portion of which is fastened a hollow cap 5 the top of which is provided with a piezoelectric generator 6 operating at the impact.
  • a conical metal liner 7 In the front portion of the casing, is disposed a conical metal liner 7 the top or tip 8 of which is directed to the rear portion of the head and is situated as accurately as possible on the axis of the said casing 4.
  • This liner is housed in a corresponding conical recess of a cylindrical explosive charge 9. Within this charge, is embedded an element 10 described hereafter.
  • the basis of the said charge 9 opposite to that receiving the liner 7 is centrally provided with a truncated recess in which is inserted a pin-point detonator 11 which passes through a radial wall 12 provided in the said casing.
  • the motor tube 2 contains a propellent charge 14 of the double base type as well as a ballistic auxiliary means 15 applied on a rigid support 16.
  • the charge 14 may be fired by means of a device shown diagrammatically in 17.
  • the motor tube 2 In its rear portion, the motor tube 2 is closed by a wall 18 supporting nozzles 19 as well as the pins 20 of the fins 3.
  • the detonator 11 is housed in a metallic case having a cylindrical portion 21 extended by a truncated portion 22.
  • the length of portion 21 is substantially equal to the thickness of wall 12.
  • This case contains a rapid combustion powder charge 23 housed in the said truncated portion 22 and extended within the said cylindrical portion 21 by a concavely flanked point 24.
  • This point 24 surrounded with a slower combustion powder charge 25 contacts the top of a conical charge 26 which is also of rapid powder.
  • These various charges may be made integral with each other by gluing.
  • This construction provides an accurate centering of the end of point 24 on the axis of easing 4.
  • the bottom of the said truncated portion 22 is parallel with the small base of element 10 at a very small distance therefrom or even in contact therewith.
  • this element 10 has a large base 27 situated in a plane perpendicular to axis X-X of casing 4 and directed to the point 8 of liner 7, a small base 28 directed to the detonator 11, a conical surface 29 and between the latter and the said bases, torus-shaped connecting surfaces 30 and 31 respectively.
  • the extended conical surface 29 intersects the plane of the large base 27 according to a circle situated in the cylindrical surface defined by the inner wall 32 of casing 4.
  • the distance d separating the bases 27 and 28 is between the half inner diameter a of the casing and the half outer diameter b of the latter or the caliber size.
  • the minimum distance d from element 10 to wall 32 is of about a/ l 5.
  • the taper angle of surface 29 is slightly lower than that of liner 7 which is equal to 60.
  • the curvature radii r and r of surfaces 30 and 31 respectively have each a distinct value between 1 and 2 times d
  • the distance d separating the face 27 from the point 8 is higher than b/2. If at., is the distance between the face 27 and the intersection point, with axis XX, of the tangent to surface 27 perpendicularly to the generatrix of liner 7 in the plane of FIG. 4, the distance d;, will be preferably higher than 2.5 X (1,, and lower than 6 X d,,.
  • the inner surface 32 of the casing will have, in front of surface 29 of the element 10, a conical section indicated in 29 on FIG. 4, the charge 9 being profiled correspondingly. As shown, walls 29 and 29 are converging towards the plane of the said face 27.
  • the element may be made of any suitable synthetic material. However, it is preferably made of metal to prevent any distorsion as well under the acceleration effects as when the detonating wave is propagated.
  • fuse 13 it may be of any suitable type.
  • a suitable fuse comprises an electric detonator 33 which may be energized by the piezoelectric element 6 via cable 34, said detonator 33 being carried on a slide 35 the shifting of which is allowed after the withdrawal of a locking rod 36.
  • the withdrawal of said rod 36 is effected through the intermediary of a retardation device comprising a stationary cylinder 37 containing microballs 38 permanently forced back by a piston 39 having a spring 40.
  • the shifting of the sleeve 42 is controlled by a safety ring 43 which is unlocked by inertia at the start.
  • Hollow charge warhead having a tubular casing, a conical liner, an explosive charge, a deflector embedded into said charge and a pin-point detonator, wherein:
  • the deflector is frusto-conical in shape, the large basic of which faces said liner and the small basis of which faces said detonator;
  • the axis of the conical liner, the deflector and the pinpoint detonator are coaxial;
  • a pin-point transfer passage is provided between said detonator and said deflector
  • At least the connecting surface between the conical surface and the large basis of said deflector is curved, the radius of curvature being at least equal to the shortest distance between said deflector and the inner surface of said casing;
  • the axial length of said deflector is at least equal to one fourth of the outer diameter ofsaid casing
  • the inner surface of said casing has a conical portion facing and partly surrounding said deflector.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US882045A 1969-10-27 1969-12-04 Hollow charge warhead Expired - Lifetime US3662684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE49639 1969-10-27

Publications (1)

Publication Number Publication Date
US3662684A true US3662684A (en) 1972-05-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
US882045A Expired - Lifetime US3662684A (en) 1969-10-27 1969-12-04 Hollow charge warhead

Country Status (8)

Country Link
US (1) US3662684A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE740812A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH506769A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE2000363A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES375376A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2065770A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1246028A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6918440A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606272A (en) * 1984-02-20 1986-08-19 Etat Francais Initiation delay system for warheads with tandem mounted shaped charges
US4612859A (en) * 1983-10-11 1986-09-23 Rheinmetall Gmbh. Multiple purpose warhead
US4672896A (en) * 1984-08-21 1987-06-16 Societe D'etudes, De Realisations Et D'applications Techniques Hollow charges
US5204493A (en) * 1978-12-04 1993-04-20 Wolfgang Christmann Inert insertion for explosive wave guidance in shaped charges
USH1504H (en) * 1995-02-21 1995-12-05 The United States Of America As Represented By The Secretary Of The Navy Anti-armor warhead assembly
US20050115391A1 (en) * 2003-10-14 2005-06-02 Baker Ernest L. Method and apparatus to improve perforating effectiveness using a unique multiple point initiated shaped charge perforator
WO2019232597A1 (en) * 2018-06-07 2019-12-12 Petkov Stancho Petkov Shot with a directed flow of high-speed kinetic elements
US20210310773A1 (en) * 2018-07-31 2021-10-07 Orica International Pte Ltd Explosive Device Configured For Producing A Quasi-Planar Shock Wave

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE445670B (sv) * 1982-01-15 1986-07-07 Bofors Ab Laddning med riktad sprengverkan
RU2177599C1 (ru) * 2000-08-30 2001-12-27 Открытое акционерное общество АК "Туламашзавод" Управляемый артиллерийский снаряд. способ сборки боевой части артиллерийского снаряда
RU2191982C1 (ru) * 2001-03-05 2002-10-27 Государственное унитарное предприятие "Конструкторское бюро приборостроения" Управляемый снаряд
DE102005043078B4 (de) * 2005-09-10 2007-06-14 Diehl Bgt Defence Gmbh & Co. Kg Suchzündermunition

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809585A (en) * 1949-11-16 1957-10-15 Sidney A Moses Projectile for shaped charges
DE1220306B (de) * 1964-12-11 1966-06-30 Boelkow Gmbh Rotationssymetrische Hohlladung mit Detonationswellenlenkung durch Inertstoffeinlageim Sprengstoff
US3437036A (en) * 1966-04-20 1969-04-08 Diehl Hollow charge for land mines
US3451339A (en) * 1964-03-03 1969-06-24 Tech De Rech Ind Et Mechanique Priming explosive devices

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809585A (en) * 1949-11-16 1957-10-15 Sidney A Moses Projectile for shaped charges
US3451339A (en) * 1964-03-03 1969-06-24 Tech De Rech Ind Et Mechanique Priming explosive devices
DE1220306B (de) * 1964-12-11 1966-06-30 Boelkow Gmbh Rotationssymetrische Hohlladung mit Detonationswellenlenkung durch Inertstoffeinlageim Sprengstoff
US3437036A (en) * 1966-04-20 1969-04-08 Diehl Hollow charge for land mines

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204493A (en) * 1978-12-04 1993-04-20 Wolfgang Christmann Inert insertion for explosive wave guidance in shaped charges
US4612859A (en) * 1983-10-11 1986-09-23 Rheinmetall Gmbh. Multiple purpose warhead
US4606272A (en) * 1984-02-20 1986-08-19 Etat Francais Initiation delay system for warheads with tandem mounted shaped charges
US4672896A (en) * 1984-08-21 1987-06-16 Societe D'etudes, De Realisations Et D'applications Techniques Hollow charges
USH1504H (en) * 1995-02-21 1995-12-05 The United States Of America As Represented By The Secretary Of The Navy Anti-armor warhead assembly
US20050115391A1 (en) * 2003-10-14 2005-06-02 Baker Ernest L. Method and apparatus to improve perforating effectiveness using a unique multiple point initiated shaped charge perforator
US6925924B2 (en) * 2003-10-14 2005-08-09 Molycorp Inc. Method and apparatus to improve perforating effectiveness using a unique multiple point initiated shaped charge perforator
US20050188878A1 (en) * 2003-10-14 2005-09-01 Baker Ernest L. Unique multiple point initiated shaped charge perforator and method for its use
WO2019232597A1 (en) * 2018-06-07 2019-12-12 Petkov Stancho Petkov Shot with a directed flow of high-speed kinetic elements
US20210310773A1 (en) * 2018-07-31 2021-10-07 Orica International Pte Ltd Explosive Device Configured For Producing A Quasi-Planar Shock Wave
US12104887B2 (en) * 2018-07-31 2024-10-01 Orica International Pte Ltd Explosive device configured for producing a quasi-planar shock wave

Also Published As

Publication number Publication date
NL6918440A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-04-29
BE740812A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-07-27
CH506769A (fr) 1971-04-30
DE2000363A1 (de) 1971-05-06
ES375376A1 (es) 1972-05-01
GB1246028A (en) 1971-09-15
DE7000254U (de) 1970-06-11
FR2065770A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-08-06

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