BULLET HAVING BULLET SURFACE FLUID INFLOW PATH AND MANUFACTURING METHOD THEREFOR

WIPO Patent Application WO/2018/079957

A1

The present invention relates to a bullet having a bullet surface fluid inflow path and a manufacturing method therefor, to forcibly flow in fluid flowing along the bullet surface through a surface fluid inflow path of a bullet lateral surface, which starts from one side surface of the bullet, so as to reduce the amount of fluid flowing along the bullet surface such that surface friction force is reduced, and a vortex generated at a bullet base part is removed while the influent fluid is discharged to the center portion of a bullet base, thereby reducing resistance caused by the surface friction force and the vortex, so as to increase an accuracy rate and an effective range. In addition, in the coupling of a core, made from various materials, to wing bodies, the core can be separated during flying if the core has a high specific gravity, but the present invention applies a connection method for promoting natural fixed-coupling by allowing latch-shaped engraved part, having a head part coupled to a wing part and formed by separating the head part, to be formed such that the surface of the wing part is slightly compressed and deformed inwards by a rifling part protruding from the inside of a gun (cannon) barrel and a copper alloy part is pressed into an engraved latch part, thereby enabling simple manufacturing during manufacturing.

KIM JUNKYU (KR)
KIM HYUNGSE (KR)

PCT/KR2017/003983

May 03, 2018

April 13, 2017

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DURETEK LTD (KR)

F42B10/34; F15D1/00; F42B10/44; F42B10/46; F42B12/02; F42B33/00

JP2005030721A	2005-02-03
KR101660887B1	2016-09-28
CN203422027U	2014-02-05
KR20120090165A	2012-08-17
KR20090087160A	2009-08-17

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