High-explosive projectile

• US 5,009,167 A
• Filed: 01/12/1989
• Issued: 04/23/1991
• Est. Priority Date: 02/12/1988
• Status: Expired due to Fees

• Current Assignee: Rheinmetall GmbH (Rheinmetall AG)
• Original Assignee: Rheinmetall GmbH (Rheinmetall AG)
• Inventors: Kruse, Heinz-Josef, Becker, Wilfried, Sippel, Achim
• Primary Examiner(s): Brown, David H.
• Application Number:
  US07/296,150
• Time in Patent Office: 831 Days
• Field of Search: 102/524, 102/525, 102/526, 102/527, 102/499, 102/473, 102/500
• US Class Current: 102/524
• CPC Class Codes: F42B 12/22 with fragmentation-hull construction
• CPC Class Codes: F42B 14/02 Driving bands; Rotating bands F42B14/04 takes precedence

Abstract

A high-explosive projectile including a projectile body having a forward region and a tail region which transitions to a base, with an explosive charge disposed within the body and detonated by a suitable fuse, and a driving band disposed on the outer circumferential surface of the projectile body in the tail region, wherein the wall thickness of the tail region of the projectile body is substantially the same as the wall thickness of the forward region of the projectile body; the tail region of the projectile body has a cylindrical shape up to its transition to the base and forms a circumferential edge at the transition; and the rearward, gas pressure receiving side of the driving band is disposed adjacent the circumferential edge.

Claims

1. In a high-explosive projectile including a projectile body having a forward region and a tail region which transitions to a base, an explosive charge disposed within said body and detonated by a suitable fuse, and a driving band disposed on the outer circumferential surface of said projectile body in said tail region, the improvement wherein:

the wall thickness of said tail region of said projectile body is substantially the same as the wall thickness of said forward region of said projectile body;

said tail region of said projectile body has a cylindrical shape up to its transition to said base and forms a circumferential edge at said transition;

said projectile body has a tail slope angle of >

10°

between said outer circumferential surface of the cylindrical said tail region and a tangent to the outer surface of said projectile base at said circumferential edge; and

the rearward, gas pressure receiving side of said driving band is disposed adjacent said circumferential edge.

2. A high-explosive projectile as defined in claim 1, wherein said driving band has a width of at least twice said wall thickness.

3. A high-explosive projectile as defined in claim 1, wherein:

said driving band has a width of at least four times said wall thickness.

4. A high-explosive projectile as defined in claim 1, wherein said tail slope angle lies between approximately 20°

and 70°

.

5. A high-explosive projectile as defined in claim 1, wherein said projectile is a fin-stabilized projectile.

6. A high-explosive projectile as defined in claim 1, wherein said rearward gas pressure receiving side of said driving band is located a distance from said circumferential edge which is no greater than twice said wall thickness.

7. A high-explosive projectile as defined in claim 6, wherein said driving band has a width of at least twice said wall thickness.

8. A high-explosive projectile as defined in claim 7, wherein:

said projectile is a spin-stabilized projectile;

said driving band is a rotating band; and

said rotating band has a width of at least four times said wall thickness.

9. A high-explosive projectile as defined in claim 8, wherein said rotating band has a width of five times said wall thickness.

10. A high-explosive projectile as defined in claim 8, wherein, said projectile base has an outward cup-shaped curvature.

11. In a high-explosive projectile including a projectile body having a forward region and a tail region which transitions to a base, an explosive charge disposed within said body and detonated by a suitable fuse, and a driving band disposed on the outer circumferential surface of said projectile body in said tail region, the improvement wherein:

the wall thickness of said tail region of said projectile body is substantially the same as the wall thickness of said forward region of said projectile body;

said tail region of said projectile body has a cylindrical shape up to its transition to said base and forms a circumferential edge at said transition;

said projectile base has approximately the same wall thickness as said projectile body;

said driving band has a width of at least twice said wall thickness; and

the rearward, gas pressure receiving side of said driving band is located a distance from said circumferential edge which is no greater than twice said wall thickness.

12. A high-explosive projectile as defined in claim 11, wherein said projectile base has an outward cup-shaped curvature.

13. A high-explosive projectile as defined in claim 12, wherein, said projectile body has a tail slope angle of >

10°

between said outer circumferential surface of the cylindrical said tail region and a tangent to the outer surface of said projectile base at said circumferential edge.

14. A high-explosive projectile as defined in claim 13, wherein said tail slope angle lies between approximately 20°

and 70°

.

15. A high-explosive projectile as defined in claim 14, wherein said tail slope angle is approximately 30°

.

16. In a high-explosive projectile including a projectile body having a forward region and a tail region which transitions to a base, an explosive charge disposed within said body and detonated by a suitable fuse, and a driving band disposed on the outer circumferential surface of said projectile body in said tail region, the improvement wherein:

the wall thickness of said tail region of said projectile body is substantially the same as the wall thickness of said forward region of said projectile body;

said tail region of said projectile body has a cylindrical shape up to its transition to said base and forms a circumferential edge at said transition;

at least in its outer region, said projectile base has approximately the same wall thickness as said projectile body; and

the rearward, gas pressure receiving side of said driving band is disposed adjacent said circumferential edge.

17. A high-explosive projectile as defined in claim 16, wherein, said projectile base has an outward cup-shaped curvature.

18. A high-explosive projectile as defined in claim 17, wherein, said projectile body as a tail slope angle of >

10°

between said outer circumferential surface of the cylindrical said tail region and a tangent to the outer surface of said projectile base at said circumferential edge.