IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0200228
(1988-05-31)
|
발명자
/ 주소 |
- Gartner Robert F. (Eden Prairie MN)
|
출원인 / 주소 |
- Honeywell Inc. (Minneapolis MN 02)
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
0 |
초록
▼
The boat tail (28) of a fin-stabilized projectile (10) for firing from a smooth bore gun tube (14) is provided with a plurality of transversely extending spin chambers (34 a,b,c,d). Each chamber communicates with a converging-diverging nozzle (36 a,b,c,d) which extends through the outer surface of t
The boat tail (28) of a fin-stabilized projectile (10) for firing from a smooth bore gun tube (14) is provided with a plurality of transversely extending spin chambers (34 a,b,c,d). Each chamber communicates with a converging-diverging nozzle (36 a,b,c,d) which extends through the outer surface of the boat tail (28) to provide free access to the surrounding atmosphere when the nozzles (36 a,b,c,d) are clear of the gun tube (14). When the propulsive charge in the rear of the gun tube (14) is ignited, a portion of the propellant gas produced by the charge enters the spin chambers (34 a,b,c,d) through the nozzles (36 a,b,c,d) and is stored in the chambers (34 a,b,c,d) until the converging-diverging nozzles (36 a,b,c,d) clear the gun tube (14), at which point the propellant gas exits through the nozzles (36 a,b,c,d) in the form of high speed tangentially directed jets which cause the projectile to spin at a predetermined rate which reduces dispersion due to fin misalignment.
대표청구항
▼
A projectile (10) for firing from a smooth bore gun tube (14), the projectile (10) comprising: (a) a generally cylindrical warhead (20) having a predetermined outer diameter approximately equal to the diameter of the bore (12) of the gun tube (14); (b) a nose portion (22) formed forwardly of said wa
A projectile (10) for firing from a smooth bore gun tube (14), the projectile (10) comprising: (a) a generally cylindrical warhead (20) having a predetermined outer diameter approximately equal to the diameter of the bore (12) of the gun tube (14); (b) a nose portion (22) formed forwardly of said warhead (20); and (c) a tail section (24) formed rearwardly of said warhead (20), said tail section (24) including I. an elongated, slightly tapered boom (26) formed rearwardly of said warhead (20), said boom having a maximum outer diameter substantially less than the outer diameter of said warhead (20), II. a plurality of stabilizing fins (30) mounted on the rear of said elongated boom (26), III. a boat tail (28), said boat tail (28) having a tapered outer surface providing a gradual transition region between said boom (26) and said warhead (20) and defining a thrust area upon which the propulsive gas created by the combustion of a propelling charge in the smooth bore gun tube acts to propel said projectile (10) out of the gun tube (14), IV. a plurality of transversely extending spin chambers (34 a,b,c,d) formed in the interior of said boat tail (28), and V. a plurality of transversely extending converging-diverging nozzles (36 a,b,c,d), each of said nozzles (36 a,b,c,d) being in communication with a different one of said spin chambers (34) and extending through said outer surface of said boat tail (28) to provide free access to the surrounding atmosphere when said nozzles are clear of the gun tube; whereby a portion of the high pressure hot gas created by the combustion of a propelling charge in the smooth bore gum tube (14) is stored in said spin chambers (34 a,b,c,d) until said spin nozzles (36 a,b,c,d) are clear of said gun tube (14), whereupon most of said portion of said gas escapes through said converging- diverging nozzles (36 a,b,c,d) whereby the escaping gas produces a torque causing said projectile to spin substantially immediately about its longitudinal axis.
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