METHOD OF EVACUATION OF CYLINDRICAL MODULE FROM UNDERWATER STATION TO WATER SURFACE AND DEVICE FOR REALIZATION OF THIS METHOD Russian patent published in 2003 - IPC

FIELD: devices for delivery of cylindrical modules from underwater station to water surface. SUBSTANCE: proposed method consists in forming cavity in water due to blowing with gas and forcing the module into cavity followed by firing the cavity with grain charge till passage of preset height has been formed in water. Charge is fired at time delay after beginning of blowing water with gas. Direction of blowing gas into water and direction of expelled charge change depending on vector of incoming water velocity. Device proposed for realization of this method includes launching tube with cylindrical module mounted in launching well, cavity forming unit, propelling unit with charge and launching unit. Cavity forming unit is made in form of gas generators with nozzles mounted at upper shear of launching tube. Propelling unit is mounted at upper shear of launching tube. Proposed method excludes effect of side hydraulic pressure on module. EFFECT: reduced passive mass of cylindrical module. 8 cl, 6 dwg