Fuze for a Projectile

Abstract

A fuze (10) for a projectile, in particular for a spin-free projectile, having a first and a second arming criterion for the safety and arming unit (14) for the fuze (10), with the first arming criterion using the launch acceleration of the projectile (12) or of the fuze (10). The fuze (10) has pressure and/or temperature sensors (20) arranged at a distance from one another in order to measure the pressure and/or temperature difference during the Right phase of the projectile (12), with the respective difference measured value being compared by means of a comparator (24) with a predetermined threshold value (26), and with a corresponding comparison signal (28) forming the second arming criterion for the safety and arming unit (14) of the fuze (10).

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The invention relates to a fuze for a projectile, in particular for a non-spinning or spin-free projectile, which possesses a first and a second arming criterion for its safety and arming unit, with the first arming criterion using the launch acceleration of the fuze.[0003]2. Discussion of the Prior Art[0004]In the case of projectiles that do not spin, such as mortars or the like, the launch acceleration is used as a first arming criterion. A safety break, for example, such as a pin or cotter, or latching device, is used as a second arming criterion, which must be withdrawn before the projectile is launched. A safety break, i.e., a safety pin, cotter, or latching device, such as this has the serious defect that the fuze of the projectile has only one safety feature once the safety break has been withdrawn, and nevertheless still has to be handled. This results in an increased risk to the operator. Furthermore, safety br...

AI Technical Summary

Benefits of technology

[0009]The advantages achieved by the invention are that the safety for the user and the reliability are considerably improved, because the fuze is armed automatically, and because there are no openings into the interior of the fuze.

Problems solved by technology

A safety break, i.e., a safety pin, cotter, or latching device, such as this has the serious defect that the fuze of the projectile has only one safety feature once the safety break has been withdrawn, and nevertheless still has to be handled.

This results in an increased risk to the operator.

Furthermore, safety breaks such as these are not suitable for automatic weapons or launch systems.

This channel as well as the mounting for the wind-driven impeller or turbine wheel are sensitive to dirt and to icing, and are therefore unsuitable for use, for example, in sandy or dusty operating conditions and environments.

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