Method for generating power in a gravity dropped munition

Patent metadata

Field	Value
Publication number	US-9976839-B2
Application number	US-201615201101-A
Country	US
Kind code	B2
Filing date	Jul 1, 2016
Priority date	Mar 12, 2012
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

A method for generating power in a gravity dropped munition. The method including: attaching a cable from a generator associated with the munition to a portion of an aircraft; separating the munition from the aircraft to pull the cable from the munition; converting the pulling of the cable to a rotation; producing power from the rotation; and providing the power to an internal component of the munition.

First claim

What is claimed is:

1. A method for generating power in a gravity dropped munition, the method comprising:
winding a cable around a drum of a generator associated with the munition;
attaching the cable from the generator to a portion of an aircraft;
separating the munition from the aircraft to unwind the cable from the drum to release the cable from the drum after a predetermined amount of rotation of the drum;
converting the rotation of the drum to energy;
using the energy to produce power from the generator operatively connected to the drum; and
providing the power to an internal component of the munition.

2. The method of claim 1 , further comprising:
sensing an air velocity at the munition for distinguishing separation of the munition from the portion of the aircraft while in flight from another event in which power from the generator is not desired; and
controlling the generator output based on the sensed air velocity.

3. The method of claim 1 , wherein the converting the rotation of the drum to energy comprises storing energy in a spring as the cable is unwound from the drum.

4. The method of claim 1 , wherein the using of the energy to produce power comprises providing gearing connecting the drum to the generator.

Assignees

• Rastegar Jahangir S
• Murray Richard T
• Omnitek Partners Llc

Inventors

• Rastegar Jahangir S
• Murray Richard T

Classifications

• H02P9/006

  Means for protecting the generator by using control (control effected upon generator excitation circuit to reduce harmful effects of overloads or transients H02P9/10) · CPC title

• H02N2/18

  producing electrical output from mechanical input, e.g. generators (for measurement devices G01) · CPC title

• F42C11/008 Primary

  Power generation in electric fuzes (F42C11/02, F42C11/04 and F42C15/295 take precedence) · CPC title

• F42C15/40

  wherein the safety or arming action is effected electrically · CPC title

• F42C11/02

  with piezo-crystal · CPC title