UNDERWATER SHIP Russian patent published in 2019 - IPC B63G8/41 

FIELD: shipbuilding.

SUBSTANCE: invention relates to shipbuilding, namely, to submarines with rescue equipment for the whole crew. Submarine includes at least two self-contained modules equipped with propulsors - lower transport vehicle with power plant, devices for change of degree of buoyancy, functional devices, sealed containers with substances of various aggregate state and containers with products for different purposes, including weapons; and upper rescue in the form of constant buoyancy safety of floating craft, which is located in upper part of lower module housing, has facilities for crew work and rest and is equipped with systems for life support, monitoring and control. Both modules are connected by grips with drives and have means of separation with pyro engines, interconnected by gate chambers and connected by electric cables with connectors and pipelines with two-valve circuit breakers. Propulsor of the upper module is made in the form of two water drafts of horizontal thrust. Upper module is made of several dispersed rescue craft. Housing of lower module is made water-permeable and equipped with compensators of loss of buoyancy with spherical elements of positive buoyancy. Functional devices are arranged in sealed containers, all containers, including containers, are made in form of shells of spherical and/or cylindrical shape, and each rescue watercraft is protected by lower module housing and is communicated by its at least one lock chamber with common hermetic passage to carrying at least main functional devices sealed containers.

EFFECT: higher depth of immersion, which is considerably higher than permissible for strength of housing and simultaneously providing safety to crew in accident and after it.

12 cl, 21 dwg