Projectile base for carrier projectiles

US5033388A · kind A · utility

Assignee

• Rheinmetall GmbH · DE

Inventors

• Achim Sippel · Ratingen, DE
• Heinz-Josef Kruse · Ratingen, DE
• Klaus D. Karius · Jüchen, DE
• Michael Primus · Ratingen, DE

Key dates

• Filing date: Mar 22, 1990
• Grant date: Jul 23, 1991
• Expiry date: Mar 22, 2010

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42B30/003
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

In projectile bases (20) for carrier projectiles which are equipped with a cavity (26) on the side facing away from the projectile tail for, for example, a parachute, it may happen that the base plate (23) is axially bent through during firing. This causes the base body (22) to be radially constricted and contact is lost between the rotating band (27) disposed on the body (22) and the gun tube, frequently resulting in a gas breakthrough. To avoid the above-mentioned radial constriction in the region of the rotating band, the projectile base (20) is provided with a base plate (23) which is curved toward the tail of the projectile. The curved configuration of the base plate (23) makes it possible to produce radial widening in the rear projectile base region during firing so as to ensure gas tightness and spin transmission from the rotating band (27) even at high gas pressures.