Oval Nozzle Water Column for Disrupting Explosives
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Solution Overview
Problem
Disrupter cannons face challenges in effectively disabling explosive devices using water projectiles, as existing designs may either damage or fail to adequately disrupt explosive devices due to the shape and impact characteristics of the water column.
Innovation Solution
The design of a disrupter cannon that uses a nozzle with a specific configuration to produce a column of water with either a circular or oval cross-section, depending on the target, to enhance the effectiveness of water as a projectile by varying the shape and area of impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a water column projectile is used to disable explosive devices, then the device can be disabled without direct contact, but the effectiveness is insufficient due to the shape and impact characteristics of the water column
Solution Approach 1:
The patent applies asymmetry by changing the water column from a traditional circular cross-section to an oval cross-section. This asymmetric shape creates a larger impact area and different pressure distribution when the water column strikes the explosive device, thereby improving the reliability of disabling the device while addressing the limitation of the conventional symmetric circular shape.
Solution Approach 2:
The patent implements parameter changes by modifying the geometric parameters of the water column, specifically the cross-sectional shape from circular to oval. This change in shape parameters increases the impact area and alters the force distribution during impact, enhancing the effectiveness of the water column projectile in disabling explosive devices.
2Reliability
If the water column shape is changed to oval cross-section, then disruption effectiveness increases for certain devices, but the device complexity increases due to nozzle configuration requirements
Solution Approach 1:
The patent applies local quality by designing the nozzle with specific localized features that generate the oval cross-section water column. The nozzle incorporates particular geometric configurations at its exit region to shape the water flow into an oval form, while the rest of the nozzle structure remains relatively simple. This localized complexity achieves the desired water column shape without requiring complete system redesign.
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
The use of a nozzle producing a column of water with an oval cross-section is more effective against certain explosive devices, such as those in ammunition boxes or pressure cookers, by causing greater disruption and separation of components, whereas a circular cross-section is effective for piercing solid targets like car doors.
Implementation Method 1
The design of a disrupter cannon that uses a nozzle with a specific configuration to produce a column of water with either a circular or oval cross-section
Implementation Method 2
The use of a nozzle producing a column of water with an oval cross-section is more effective against certain explosive devices, such as those in ammunition boxes or pressure cookers, by causing greater disruption and separation of components
Data Source
AI summary
A disrupter cannon is used to disrupt or destroy explosive devices. A disrupter cannon may launch a liquid (e.g., water) toward an explosive device to disrupt the explosive device. The liquid may be launched through a nozzle. The nozzle may include passages that spread the liquid to for a column of liquid with a cross-section. A nozzle that provides a column of liquid with an oval cross-section may be more effective at disrupting certain types of explosive devices.