RESCUE HOVERCRAFT Russian patent published in 2016 - IPC B60V1/18 B63B3/68 B63B29/02 

FIELD: shipbuilding; life-saving appliances.

SUBSTANCE: invention relates to the life-saving equipment for emergency response, in particular to the rescue of shipbuilding facilities, and can be used in the superstructure constructions hovercraft. Rescue hovercraft, is a structure mounted on the platform of the superstructure, the piece contains sound absorber, the frame is made of two parts. Lower, reactive portion is formed as a structure of the spherical-shaped inner congruent spherical resonant cavity formed by a rigid continuous spherical shell, equidistant outer perforated spherical shell connected to the upper active part of which is made of a rigid perforated cylindrical shell with a perforated cover and solid base. Cavity of the cylindrical shell is filled with sound absorbing material. Connection of the top and bottom parts of the sound absorber is made by the resilient damping element ensuring dampening of HF oscillations. Spherical reactive resonant cavity of the frame is rigidly connected to the bushing axial opening.

EFFECT: noise reduction is achieved.

2 cl, 7 dwg