公开(公告)号：US10859356B1

公开(公告)日：2020-12-08

申请号：US16784789

申请日：2020-02-07

申请人： U.S. Government as Represented by the Secretary of the Army

发明人： Frank J. Dindl

IPC分类号： F42B14/04 ,  F42B5/145 ,  F42B5/24 ,  F41A9/50 ,  F41A9/29

摘要： A liquid or powder filled cartridge is used to cool and lubricate the bore of gun barrels to eliminate cook off and improve barrel life. A primer is used to rupture the nose of the cartridge and propel the cooling material into the bore. The coolant absorbs heat from the bore of the barrel and is ejected from the muzzle of the weapon. The liquid or powder may include lubricants, preservatives, antifreeze, coolants, cleaners, or mixtures thereof, or other materials to enhance barrel performance. The liquid or powder filled cartridge is particularly well suited to externally powered weapons. Ammunition may be fed into the weapon using a mix of conventional cartridges and coolant filled cartridges. Internally cooling the barrel may be used to reduce or eliminate cook off and increase barrel life.