Cannon Turret Ammunition Feed Alignment for Flexible Handling

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Solution Overview

Problem

Existing weapon systems face challenges in quickly and efficiently handling and directing different types of ammunition components.

Innovation Solution

A cannon system with a turret assembly and ammunition feed unit that allows for the alignment of multiple magazines and storage racks to deliver ammunition components to a firing chamber, enabling efficient and flexible handling of various ammunition types through a rotatable turret and integrated transport systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple magazines are positioned around the traverse path to deliver different ammunition components, then the versatility and speed of ammunition delivery are improved, but the device complexity and spatial requirements increase

Engineering Contradiction:
Improveammunition type flexibilityVSAvoidsystem structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The ammunition supply system is divided into multiple independent magazines (first magazine with first magazine outlet, second magazine with second magazine outlet) positioned at different locations around the traverse path. Each magazine can be independently aligned with the ammunition feed unit at different positions (P1, P2) during turret rotation, allowing different ammunition types to be delivered without requiring a single complex multi-functional magazine structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from a single-line ammunition feed to a multi-dimensional arrangement by positioning magazines around the traverse path in different angular positions. The turret assembly rotates to bring different magazines into alignment with the ammunition feed unit, adding the dimensional aspect of angular position to the ammunition delivery process, thereby increasing versatility without proportionally increasing complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If the turret assembly is made rotatable to align ammunition feed unit with different magazines, then the speed and efficiency of ammunition handling are improved, but the device complexity increases

Engineering Contradiction:
Improveammunition handling speedVSAvoidturret mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Multiple magazines are pre-positioned around the traverse path at specific locations (first position P1, second position P2) corresponding to different turret angles. Before the firing sequence begins, the system is configured so that as the turret rotates to any position, the ammunition feed unit is already aligned with the appropriate magazine, eliminating the need for complex real-time switching mechanisms during operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The rotatable turret assembly automatically performs the alignment function between the ammunition feed unit and the appropriate magazine based on its angular position. The system uses its own rotational movement to bring the correct magazine into alignment, rather than requiring separate actuation mechanisms for each magazine switch, thereby improving handling speed while limiting the increase in complexity to the essential rotation capability.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4617612A1Improved weapon sub-system
Publication Date: 2025.09.17 BAE SYSTEMS PLC
  • EP4617612A1 patent drawingFigure 1~2
  • EP4617612A1 patent drawingFigure 3~4
  • EP4617612A1 patent drawingFigure 5~6

AI summary

A cannon system (10) which forms part of a weapon sub-system. The cannon system (10) comprises a cannon turret assembly system (100) comprising a turret assembly (102) for supporting a cannon (104). The turret assembly (102) is rotatably mounted to a support structure (20) such that it is rotatable about a z-axis to travel in a traverse path (106). The turret assembly (102) comprises a cannon assembly support (120) and a slew ring (130) with a radially outer engagement surface (132). The slew ring (130) is coupled to and rotatable with the cannon assembly support (120). The cannon assembly support (120) comprises an actuator (133) with an engagement member (137) for engagement with the radially outer engagement surface (132). The actuator (133) is mounted radially outwards of the slew ring (130).