Recoil brake with hydropneumatic recuperator and forward movemen

Details Recoil brake with hydropneumatic recuperator and forward movemen Recoil brake with hydropneumatic recuperator and forward movemen

1981-04-20

1984-12-04

Bentley, Stephen C.

Ordnance

Mounts

With recoil check

F41F 1914

Patent

active

044857225

ABSTRACT:
A combination recuperator and gun barrel recoil brake form a single constructional unit assembly. This assembly includes a storage cylinder in which a recoil (brake) cylinder is mounted by means of a separating piston which forms part of the recoil cylinder and which is slidably disposed in the storage cylinder. A recoil piston is slidably disposed in the recoil cylinder and is operatively connected via a piston rod to the gun barrel. A guide bushing is mounted in the rear end wall of the storage cylinder and forms an axial guide for the piston rod of the recoil piston. The outer surface of the guide bushing forms together with the inner wall surface of the recoil cylinder and the internal bore of the separating piston a first passage for permitting a controlled flow of the pressurized liquid between the pressurized liquid chamber in the storage cylinder and the interior of the recoil cylinder. The outer contour of the guide bushing, the inner contours of the recoil cylinder and internal bore of the separating piston are so constructed and arranged that the pressurized liquid is acting on the recoil piston during recoil to firstly, until shortly after the projectile has exited from the gun barrel, only slightly or not at all throttle the flow therethrough, whereby only a reduced or no braking force is applied to the gun barrel, and thereafter the first passage steadily shrinks in size so that an increasing braking force is applied to the gun barrel.

REFERENCES:
patent: 997411 (1911-07-01), Olsson
patent: 3745880 (1973-07-01), Metz et al.

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