摘要:
A method for providing electrical energy to a self-destruct fuze for submunitions in a projectile, the method including: storing mechanical energy in an elastic element attached to a first movable mass at one end of the elastic element upon a firing acceleration of the projectile; engaging a second movable mass with the first movable mass such that movement of the second movable mass upon the acceleration moves the second movable mass which in turn moves the first movable mass; converting the stored mechanical energy to electrical energy upon the acceleration to vibrate the first movable mass and the elastic element to apply a cyclic force to a piezoelectric element attached to another end of the elastic element; and locking the second movable mass in a position where the second movable mass cannot interfere with vibration of the first movable mass upon the second movable mass being subjected to the acceleration.
摘要:
A power generation device including: a housing; an elastic element disposed in the housing in a preloaded state; a power source operatively connected to the elastic element such that release of the elastic element from the preloaded state converts potential energy in the elastic element to electric power by the power source; and a locking element for releasably locking the elastic element in the preloaded state such that removing the locking element causes the potential energy preloaded in the elastic element to be converted to electric power by the power source.
摘要:
A method for providing electrical energy to a self-destruct fuze for submunitions contained in a projectile is provided. The method including: using a firing acceleration of the projectile to deform at least one elastic element to store mechanical energy in the elastic element; converting the stored mechanical energy to electrical energy; and providing the electrical energy at least indirectly to the self destruct fuze for detonation of the self destruct fuze. Alternatively, the firing acceleration can lock the elastic element in the deformed position and an expulsion acceleration of the submunitions from the projectile can be used to unlock the elastic element and convert the stored mechanical energy to electrical energy.
摘要:
An inertia igniter including a mechanical delay mechanism having two or more members which are movable under different acceleration conditions to sequentially move a movable member upon sequential movement of the two or more members and an ignition member actuatable by the movable member such that movement of the movable member by the two or more members ignites the ignition member. The movable member can be movable by one of translation and rotation. The inertia igniter can further comprise an impact mass releasably movable in the housing, wherein the impact mass is released and movable by movement of the movable member to impact the ignition member. The inertia igniter can also further comprise a stop member for preventing movement of the impact mass until the movable member has moved a predetermined distance.
摘要:
An inertial igniter including: a housing; a striker mass movable relative to the housing; a biasing element for biasing the striker mass towards a percussion primer; one or more movable members each having one or more stops, the one or more stops having a first position for preventing a portion of the striker mass from striking the percussion primer and a second position allowing the portion of the striker mass to strike the percussion primer; wherein the movable members move the one or more stops to the second position when subjected to a predetermined acceleration profile.
摘要:
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.
摘要:
A generator including: a housing having an opening; a rotatable member having a slot formed for an angular length less than 360 degrees; a cable disposed in the slot and having a free end protruding from the opening in the housing; a cable stop disposed in a predetermined position in the slot; a spring for storing energy as the cable is unwound from the slot by pulling on the free end until the rotatable member rotates relative to the housing and the cable stop aligns with the opening; and an electromagnetic generator operatively connected to the spring such that the stored energy of the spring is transferred to an input side of the electromagnetic generator.
摘要:
A device for enabling safe/arm functionality in a gravity dropped weapon detachably connected to an airframe. The device including: an elastic element disposed in a shell of the weapon; a releasable connection between the weapon and the airframe to release a stored and/or generated energy in the elastic element; and a piezoelectric member connected to one end of the elastic member for converting the one or more of the stored and generated energy to an electrical energy. Wherein the releasable connection includes: a link having a movable connection for movement of the link relative to the shell between a first position constraining the elastic element from movement and a second position releasing the elastic member to generate the electrical energy; and a lanyard for tethering the link to the airframe such that the link is moved to the second position upon the weapon being released from the airframe.
摘要:
An ignition system for a thermal battery where the ignition system includes: a base plate for connection to the thermal battery; and two or more inertial igniters formed on the base plate, each of the two or more inertial igniters having a striker mass which ignites one or more pyrotechnic materials upon a predetermined acceleration profile, the base plate having an opening corresponding to each of the two or more inertial igniters for allowing a generated spark to pass into the thermal battery.
摘要:
An inertial igniter including: a body having a base and three or more posts, each post having a hole; a locking ball corresponding to each post, wherein a portion of the locking balls are disposed in the hole; a striker mass movably disposed relative to the posts and having a surface corresponding to the posts, the striker mass further having a concave portion corresponding to the locking balls, wherein a second portion of each locking ball is disposed in a corresponding concave portion for retaining the striker mass relative to the posts; a collar movable relative to the posts; and a biasing element for biasing the collar in a first position which retains the striker mass, the biasing element permitting movement of the collar to a second position to release the striker mass relative to the posts upon a predetermined acceleration profile.