Autonomous Fire Nozzle with Reactive Jet Propulsion

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing autonomous fire fighting systems are often complicated, heavy, slow, and lack the payload required for effective fire suppression, posing challenges in deploying them safely and efficiently in hazardous environments.

Innovation Solution

An autonomous fire suppression nozzle and head assembly that uses reactive jet propulsion with a hydraulic core valve and novel geometry to support the hose and nozzle, allowing for self-guided and self-propelled delivery of fire suppression fluids without external moving parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional fire equipment is used with human firefighters, then fire suppression can be performed, but human safety is compromised in hazardous situations

Engineering Contradiction:
Improvefire suppression effectivenessVSAvoidhuman safety risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The nozzle assembly is designed to be self-propelled and self-guided, autonomously navigating to fires and delivering suppression fluid without requiring human operators in hazardous environments. The device uses its own onboard pump and jet propulsion system to move independently through the environment.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces mechanical robotic systems with a fluid-dynamics-based autonomous nozzle that uses reactive jet propulsion from its own pump system. This eliminates complex mechanical actuators, motors, and control systems while achieving autonomous movement and fire suppression.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Object-affected harmful factors

If robotic fire fighting devices are deployed, then human safety is improved, but device complexity and weight increase

Engineering Contradiction:
Improvehuman safety riskVSAvoidsystem complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The device uses a single onboard pump to generate high-pressure fluid that serves dual purposes: propulsion through reactive jet nozzles and fire suppression through discharge nozzles. This hydraulic system replaces complex mechanical propulsion and control systems.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The same fluid system performs multiple functions: the pump provides both propulsion force and suppression fluid delivery. The fluid serves dual roles as both propellant and suppressant, eliminating the need for separate propulsion and suppression systems.

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

3Quantity of substance

If heavy robotic systems are used, then payload capacity is improved, but speed and agility decrease

Engineering Contradiction:
Improvefire suppression fluid capacityVSAvoiddeployment speed
Core Design Contradiction:
Quantity of substanceVSSpeed

Solution Approach 1:

The system uses high-pressure reactive jet propulsion generated by its own pump to achieve rapid acceleration and high speeds. The fluid dynamics-based propulsion provides powerful thrust that overcomes the weight of the device and hose, enabling fast deployment.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The nozzle assembly is designed with dynamic flexibility, allowing it to navigate through the environment rather than requiring rigid mechanical support structures. This dynamic approach reduces overall system weight while maintaining payload capacity.

Inventive Principle:
Principle #15Dynamics

4Productivity

If autonomous nozzles are deployed, then fire suppression speed is improved, but reliability under loss of flow or pressure conditions must be ensured

Engineering Contradiction:
Improvefire suppression delivery speedVSAvoidsafe operation under failure conditions
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The device incorporates sensors that continuously monitor flow conditions and provide feedback to the control system. This allows the nozzle to detect loss of flow or pressure conditions and respond appropriately to maintain safe operation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system is designed with inherent safety features that prevent dangerous operation under failure conditions. The control system monitors operating parameters and automatically prevents operation when flow or pressure conditions indicate potential safety issues, cushioning against harmful effects before they occur.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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

Enables quick and reliable delivery of fire suppression fluids over obstructed paths, into tall structures, and in indoor or outdoor operations, while ensuring safe operation even in case of loss of flow or pressure.

Implementation Method 1

transport the 'the nozzle and head' device via reactive jet propulsion, while utilizing no external moving parts, by the principle of acceleration of a fluid through a plurality of lifting transportation nozzles

Methodology Applied
Scientific EffectReactive jet propulsion: Reaction (physics)

Implementation Method 2

A single hydraulic core valve enclosed within a complex shaped body cavity, can control the travel and delivery functions of fire suppression fluid by an independent means utilizing a novel geometry

Methodology Applied
Scientific EffectHydraulic force: Hydraulic Press

Data Source

PatentUS20250186820A1Autonomous fire suppression nozzle
Publication Date: 2025.06.12 MCDANIEL ROBIN JERRY
  • US20250186820A1 patent drawing
  • US20250186820A1 patent drawing
  • US20250186820A1 patent drawing

AI summary

An improved autonomous fire suppression nozzle and head assembly comprising a system of components to transport the “nozzle and head assembly” device, and moving the attached “hose”, via reactive jet propulsion, while utilizing no external moving parts, by the principle of acceleration of a fluid through lifting jet nozzles, and utilizing the hydraulic force of fluid pressure to assure fast propulsion.A self-guided, self-stabilized, self-propelled, fire detecting, hose nozzle delivery device for the application of fire suppression fluids or gasses.An invention for integrating the functions of fire detection, navigation, guidance, and control of the fire attack phase, by reactive flying of the assembly allowing for delivery of fire suppression over obstructed paths, up into tall structures, indoor flight through rooms and/or corridors, including internal vessel and outdoor fire fighting operations. Therefore application of this fire suppression system is desirable.In summary, this autonomous fire nozzle and hose assembly device can be characterized as “a life saving device” because of the utilization of the dependable hydraulic forces to cause the AUTONOMOUS FIRE SUPPRESSION NOZZLE to travel quickly into a fire, instead of exposing people, to potential harm.