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US 12,578,174 B2Granted
Curve of constant width projectile system
AssigneeBae Systems Bofors AB
InventorsFredrik Thuvander, David Malmström
Life of this patent
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Abstract
A projectile for launching from a launching device with a propellant charge in a barrel is arranged with a cross-section in the shape of a curve of constant width.
Claims8
A projectile launching system, comprising a projectile,
- a propellant charge,
- a barrel wherein the propellant charge and the projectile are arranged with a cross-section in shape of a curve of constant width,
- wherein the curve of constant width is defined by the expression
- r
-
- (
- φ
- )
- =
- D
- 2
- +
- C
- 2
-
- sin
-
- (
- n
-
- φ
- )
- ,
- where D is the core diameter, C is the rotation diameter, φ is an angle and n is an odd integer,
- and wherein the barrel has an inner shape with a matching curve of constant width.
22 more elements
Dependencies are inferred from the claim text.