Hydropneumatic Braking and Return System for Barrel-Recoil Guns

Abstract

The invention relates to a hydropneumatic braking and return system for barrel-recoil guns having at least one working cylinder ( 1 ) which can be arranged between the gun barrel ( 6 ) of the gun and that mass ( 7 ) of the gun which does not recoil, contains a brake fluid ( 4 ) and has displaceable working pistons ( 3 ) which are arranged on a piston rod ( 2 ). In order to obtain a braking and return system of simple construction for barrel-recoil guns, with which it is simply possible, moreover, to take changes in different shooting parameters into consideration, the invention proposes to replace the braking cylinder of known systems with a simple working cylinder ( 1 ) having a working piston ( 3 ), wherein the working cylinder ( 1 ) is connected to a hydraulic accumulator ( 9 ) via a separate controllable pressure relief valve ( 10 ), wherein the pressure relief valve ( 10 ) can preferably be actuated in such a way that a substantially constant brake-force profile results during the recoil of the corresponding gun barrel ( 6 ).

1 - 6 . (canceled) 
   
   
       7 . A hydropneumatic braking and return system for a barrel-recoil gun, comprising:
 at least one working cylinder arrangeable between a gun barrel of the gun and a mass of the gun that does not recoil, the cylinder including a displaceable working piston arranged on a piston rod, and containing brake fluid;   a hydraulic accumulator; and   a hydraulic control circuit including an adjustable pressure limiting valve, the working cylinder connected to the hydraulic accumulator via the adjustable pressure limiting valve of the hydraulic control circuit, the hydraulic accumulator including a hydraulic cylinder in which a separating piston separates a first chamber, which is connected to the hydraulic control circuit, from a second chamber, which is filled with a prestressed gas, so that during a recoil movement of the gun barrel from a rest position to a recoil end position, the displacement of the working piston presses brake fluid from the working cylinder into the first chamber of the hydraulic cylinder via the adjustable pressure limiting valve and the gas in the second chamber of the hydraulic accumulator is compressed as a result of displacement of the separating piston, the brake fluid being pressed back into the working cylinder upon relaxation of the compressed gas thereby causing the gun barrel to advance to its rest position.   
   
   
       8 . The hydropneumatic braking and return system according to  claim 7 , wherein the hydraulic control circuit contains at least one throttle valve with which the speed of a flow of brake fluid which is pressed back from the first chamber of the hydraulic accumulator into the working cylinder is variable in a predefinable manner. 
   
   
       9 . The hydropneumatic braking and return system according to  claim 7 , wherein the hydraulic control circuit includes a cooling system. 
   
   
       10 . The hydropneumatic braking and return system according to  claim 7 , wherein a plurality of the working cylinders are arranged as to be distributed uniformly around a circumference of the gun barrel. 
   
   
       11 . The hydropneumatic braking and return system according to  claim 7 , and further comprising a central electronic control device operatively arranged so as to activate the actuators of the hydraulic control circuit. 
   
   
       12 . The hydropneumatic braking and return system according to  claim 11 , wherein the electronic control device is operative to activate the pressure limiting valve so that a substantially constant brake force profile results during the recoil of the gun barrel.