Ignition voltage generator for projectile detonators and the like

US4138946A · kind A · utility

Assignee

• Diehl GmbH & Co. · DE

Inventors

• Gunter Postler · Westerburg, DE
• Wilhelm Furst · Meyenburg, DE
• Norbert Liebl · Westerburg, DE
• Werner Rudenauer · Roth, DE

Key dates

• Filing date: Jan 3, 1978
• Grant date: Feb 13, 1979
• Expiry date: Jan 3, 1998

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42C11/02
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An ignition or firing voltage generator adapted to be actuated only proximate the peak of an inertial force and, in its equilibrium position will not emit a voltage even when subjected to hard shocks. A piezoceramic cell, as well as a solid body which is arranged axially adjacent thereto, are located within a preferably cylindrical support member which is axially displaceably guided within a tubularly-shaped component of an igniter housing, but in the initial position thereof is so restrained through the utilization of a securing element in the configuration of a shear element, spring fastener or the like, that its base is located at a defined spacing opposite a base plate of the igniter or detonator housing. A securing element of that type, without difficulty, may be so dimensioned that it will only first release the support member, when it is influenced by approximately the maximum inertial force. The base of the support member facing towards the base plate of the igniter housing, and/or the base plate of the igniter housing facing towards the base of the support member, may be slightly cambered or curved. A short-circuiting bridge which, in the initial position of the voltage ge…