Projectile body

US6776102B2 · kind B2 · utility

Assignee

• Rheinmetall W & M GmbH · DE

Inventors

• Stefan Thiesen · Willich, DE
• Dieter Jungbluth · Selters (Westerwald), DE

Key dates

• Filing date: Mar 26, 2003
• Grant date: Aug 17, 2004
• Expiry date: Mar 26, 2023

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42B14/02
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A projectile body having a groove-shaped recess (2), in which a guide band (3) is disposed. To permit use of a relatively wide guide band (3), while preventing the band from being destroyed as the projectile body (1) passes through the gun barrel, and preventing significant copper-plating of the barrel, the guide band (3) is assembled from two partial guide bands (5, 6), with the relatively narrow, first partial band (5), which faces the base (7) of the projectile, comprising copper or a copper alloy and providing a seal against the propellant gases acting on the projectile rear under high pressure. The second, considerably wider partial guide band (6) essentially comprises plastic, and includes at least one hollow space (11), which lends it adequate deformation reserves with respect to the high surface pressure acting on this partial guide band (6) when the projectile body (1) passes through the barrel.