IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0502307
(2009-07-14)
|
등록번호 |
US-8250987
(2012-08-28)
|
발명자
/ 주소 |
- Morley, Andrew
- Palathingal, Mohan J.
- Manole, Leon
- Logsdon, Jr., Ernest L.
|
출원인 / 주소 |
- The United States of America as represented by the Secretary of the Army
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
6 |
초록
▼
A Kinetic Energy penetrator round is shown effective in neutralizing incoming air borne threat munitions such as rockets, artillery, or mortars for instance, without posing a threat in urban environments to harm bystanders on the ground. There are also no hazards or expense with this round of cleani
A Kinetic Energy penetrator round is shown effective in neutralizing incoming air borne threat munitions such as rockets, artillery, or mortars for instance, without posing a threat in urban environments to harm bystanders on the ground. There are also no hazards or expense with this round of cleaning up unexploded ordnance, which might have occurred with other types of rounds due to unreliability of self destruct mechanisms. Shown herein is a kinetic energy penetrator for air defense that merely self destructs beyond its operational range into fragments that are not lethal to personnel on ground; no pyrotechnic or energetic materials means are used to activate this self destruct process. A full bore projectile structure is shown that is composed of plural axi-symmetric circular disks stacked on each other and tied by a shape memory metal wire of Nitinol. While operational as a joined group, the disks are a formidable round to kill an incoming air target. After the self destruct phase however, each disk is separated from adjacent disks on either side by a spring mechanism that enables separation after the process is initiated in flight when the Nitinol wire deforms due to heating from air drag. Each disk then proceeds alone with low enough terminal kinetic energy on the ground to be less than lethal.
대표청구항
▼
1. A frangible kinetic energy ammunition round that comprises: a plurality of separate equal or engineered mass disks which are mounted between a base and a nose disk, said base having a solid cap thereon and a cylindrical cavity therein beyond the location of said solid cap, and all said disks and
1. A frangible kinetic energy ammunition round that comprises: a plurality of separate equal or engineered mass disks which are mounted between a base and a nose disk, said base having a solid cap thereon and a cylindrical cavity therein beyond the location of said solid cap, and all said disks and said nose disk having a central hole there through of diameter equal to said cylindrical cavity, said base and said nose disk having mass equal to that of a disk, and;each said disks and said base respectively having several equidistantly placed springs included on the back sides thereof, and several like recessed holes that are on the front side thereof and also on the front side of said nose disk, to receive said springs of a preceding adjacent disk, the depth of such recessed holes resulting in all the springs being in a state of compression in an assembled round, and;each said disks and said base respectively having several equidistant rectangular tabs included on the back sides thereof, which are sized to fit into several matching equidistant slots found on the front side of each adjacent disk, and also on the front side of the nose disk, which mate to provide adequate torque transfer surfaces between the stack of disks, base, and nose disk during spin up in the launching of the round, and wherein said base has a slip band obturator thereon enables the assembled round to spin upon firing through a rifled barrel, anda plurality of wires of shape memory alloy material, said wires attached on the inside of the base cylindrical cavity and elongating through the central hole of each disk and the central hole of said nose disk, whereupon the wires are bent over at the distal side of said nose disk, and which wires hold together the assembled round in spring and disk compressed state, and;whereupon heating of the bent wires in flight due to air drag after a predetermined amount of heating causes the wires to change shape and lose hold of the round, causing the disks to be released under spring decompression. 2. The air defense ammunition round of claim 1, wherein the ballistic coefficient of any disk or the end cap is such that its terminal energy is reduced rapidly enough in falling to be less than lethal to persons or property on the ground. 3. The air defense ammunition round of claim 2, wherein each disk and the end cap are all equal in mass. 4. The air defense ammunition round of claim 2, wherein each disk and the end cap are not all equal in mass. 5. The air defense ammunition round of claim 4, wherein the separation of the disks is aided by decompression of the springs when the wire means changes shape to allow for disks to separate from the projectile. 6. A frangible kinetic energy ammunition round as in claim 1, wherein the shape memory material is selected from the group which includes Nitinol, CuSn, InTi, TiNi, MnCu, CuZnAl, and gold cadmium alloy.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.