Apparatus for recoilless firing of projectiles from a lauching tube
AssigneeWerkzeugmaschinenfabrik Oerlikon-Buhrle AG
InventorArthur Kalin
Life of this patent
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Abstract
An apparatus for recoilless firing of projectiles from a launching tube comprises within the launching tube a forward brake ring, a forward sabot, a propellant charge with an ignition element or screw, a rear sabot, a counter-mass, and a rear brake ring, arranged within the launching tube in the sequence listed. Upon ignition of the propellant charge, high acceleration forces are created by the ensuing high peak pressures, which consequently requires a robust construction. In order to avoid this drawback, according to the invention the aforementioned disadvantage can be eliminated by using a propellant charge comprising a first cylindrical propellant charge body and a second annular propellant charge body which surrounds this first cylindrical propellant charge body.
Claims17
An apparatus for recoilless firing of projectiles from a launching tube, wherein:
- said launching tube comprises a first end and a second end;
- said first end of said launching tube serving as an exit aperture for a projectile and defining a front end of said launching tube;
- said second end of said launching tube being oppositely located with respect to said first end and defining a rear end of said launching tube;
- said launching tube being constructed to accommodate a projectile to be fired;
- a forward first brake ring;
- a rear second brake ring;
- a counter-mass for compensating the thrust of said projectile;
- a forward first sabot;
- a propellant charge, comprising:
- a substantially cylindrical first propellant charge body;
- and
- a substantially annular second propellant charge body at least partially surrounding said substantially cylindrical first propellant charge body;
- an ignition element;
- a rear second sabot;
- and
- said first sabot and said second sabot conjointly defining a substantially cylindrical internal cavity for accommodating said substantially cylindrical first propellant charge body and in conjunction with said launching tube a substantially annular external cavity for accommodating said substantially annular second propellant charge body.
An apparatus for recoilless firing of a projectile, comprising:
- a substantially tubular launching tube for accommodating the projectile to be fired;
- said launching tube having a first end and a second end and defining a firing direction for the projectile extending from said second end to said first end;
- said launching tube comprising a first brake ring and a second brake ring;
- said second brake ring being arranged in the region of said second end;
- said first brake ring being arranged at a location intermediate said first end and said second end;
- said launching tube having a substantially constant internal diameter at least between said first brake ring and said second brake ring;
- a substantially discoidal first sabot translatably arranged within said launching tube between said first brake ring and said second brake ring;
- a substantially discoidal second sabot translatably arranged within said launching tube between said first sabot and said second brake ring;
- a propellant charge comprising a substantially cylindrical first charge body, a substantially annular second charge body;
- an ignition element extending from the exterior through said second charge body to said first charge body;
- said substantially cylindrical first charge body being arranged within a cavity defined conjointly by said substantially annular second charge body, said first sabot and said second sabot;
- said substantially annular second charge body being arranged within a cavity defined conjointly by said launching tube, said first sabot and said second sabot and at least partially surrounding said substantially cylindrical first charge body;
- said first sabot engaging the projectile for imparting an initial muzzle velocity thereto in said firing direction upon ignition of said propellant charge;
- a counter-mass for providing an inertial resistance to said second sabot in said firing direction upon ignition of said propellant charge;
- and
- said second sabot engaging said counter-mass.
Dependencies are inferred from the claim text.