Submarine Compressed Air Ejection Layout Using a Shared Reservoir

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Solution Overview

Problem

Existing submarine ejection systems face issues with noise, risk of explosion from defective torpedoes, and inefficiency due to dedicated compressed air reservoirs for weapon discharge, which occupy space and weight.

Innovation Solution

Integrate a shared compressed air reservoir system for both ballast tank emergency inflation and weapon discharge, using a control valve to manage air flow, ensuring redundancy and safety by utilizing existing air reserves for emergency operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a dedicated compressed air reservoir is used for weapon discharge, then weapon ejection reliability is improved, but submarine weight and space consumption increase

Engineering Contradiction:
Improveweapon ejection reliabilityVSAvoidsubmarine weight
Core Design Contradiction:
ReliabilityVSWeight of stationary object

Solution Approach 1:

The patent applies multi-functionality by enabling the ballast tank compressed air reservoir to serve dual purposes: emergency ballast tank inflation and weapon barrel discharge. The control system automatically directs compressed air to either the ballast tanks or weapon barrels based on system needs, eliminating the requirement for a separate dedicated weapon air reservoir and reducing overall submarine weight and space.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If a dedicated compressed air reservoir is used for weapon discharge, then weapon ejection reliability is improved, but device complexity increases

Engineering Contradiction:
Improveweapon ejection reliabilityVSAvoidair supply system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the ballast tank air supply system and weapon discharge air supply system into a single integrated compressed air reservoir. The control system includes automatic detection and directional control mechanisms that manage air flow to either ballast tanks or weapon barrels based on system requirements, simplifying the overall architecture compared to maintaining separate dedicated systems.

Inventive Principle:
Principle #5Merging (Combining)

3Speed

If compressed air is used for weapon ejection, then ejection speed is improved, but noise generation increases

Engineering Contradiction:
Improveejection speedVSAvoidnoise
Core Design Contradiction:
SpeedVSObject-generated harmful factors

Solution Approach 1:

The patent utilizes partial compressed air action by directing only the necessary amount of compressed air to the weapon barrel for ejection, rather than continuous or excessive air supply. The control system regulates air flow duration and pressure to achieve sufficient ejection velocity while minimizing noise generation from prolonged or excessive air discharge.

Inventive Principle:
Principle #16Partial or excessive action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Reduces system weight and space by sharing air resources, enhances safety by preventing unintentional ejections, and maintains efficient weapon deployment even with limited air supply.

Implementation Method 1

a first compressed air reservoir (20) is provided in the submarine (10), wherein the first compressed air reservoir (20) is capable of providing sufficient pressure for discharging the at least one weapon (41, 42)

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 2

a discharge control (50) is provided, which has a first control state for directing a flow of compressed air from the first compressed air reservoir (20) to the at least one ballast tank (30) and a second control state for directing a flow of compressed air from the first compressed air reservoir (20) to the at least one weapon barrel (41, 42)

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentEP4711260A1Integrated compressed air ejection device for a submarine
Publication Date: 2026.03.18 TKMS GMBH
  • EP4711260A1 patent drawingFigure 1~2
  • EP4711260A1 patent drawingFigure 3~4
  • EP4711260A1 patent drawing

AI summary

The present invention relates to a submarine 10, wherein the submarine 10 has a first compressed air reservoir 20, wherein the submarine 10 has a first compressed air consumer, wherein the first compressed air reservoir 20 is connected to the first compressed air consumer, wherein the submarine 10 has at least one first gun barrel 41, characterized in that the first compressed air reservoir 20 is connected to the first gun barrel 41 via a first discharge control 50, wherein the first discharge control 50 has at least one first main control valve 52, wherein the first main control valve 52 has at least one first position and one second position, wherein in the first position no compressed air can flow through the first discharge control 50, wherein in the second position the compressed air from the first compressed air reservoir 20 flows through the first discharge control 50 into the first gun barrel 41.