Fire Suppression Nozzle with Diverter for Discharge Control

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Solution Overview

Problem

Conventional fire suppression systems offer limited controllability over discharge time, discharge length, and spread of fire suppressant agents, making it difficult to achieve desired combinations of these parameters.

Innovation Solution

The fire suppression apparatus incorporates a nozzle with a rate controlling orifice, a diverter, and a barrel, allowing for adjustments in the geometry and configuration of these components to control discharge time, length, and spread of the fire suppressant agent, providing three points of controllability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional fire suppression systems use simple nozzle designs, then the device complexity is low, but the controllability over discharge time, discharge length, and spread is limited

Engineering Contradiction:
ImprovecontrollabilityVSAvoidnozzle structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The nozzle is divided into multiple functional segments: a rate controlling orifice for discharge time control, a diverter with multiple passageways for discharge pattern control, and a barrel for discharge direction control. Each segment independently controls a specific parameter, enabling precise controllability without excessive overall complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The nozzle incorporates adjustable geometric parameters including the angle and number of diverter passageways, barrel orientation, and orifice size. These dynamic design elements allow the system to adapt to different fire suppression requirements by modifying discharge time, length, and spread characteristics.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the nozzle includes multiple control components (orifice, diverter, barrel), then the controllability over discharge parameters is improved, but the device complexity increases

Engineering Contradiction:
Improvedischarge controlVSAvoidnozzle configuration
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The rate controlling orifice, diverter, and barrel are merged into a single integrated nozzle assembly. This combination allows multiple control functions to be achieved through one unified component rather than separate devices, simplifying the overall system while maintaining ease of operation for discharge parameter control.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The nozzle assembly serves multiple functions simultaneously: the orifice controls discharge rate, the diverter controls discharge pattern, and the barrel controls discharge direction. This multi-functionality enables comprehensive discharge parameter control within a single operational unit, improving ease of operation without requiring multiple separate control mechanisms.

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

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

This configuration enables precise control over discharge time, length, and spread of the fire suppressant agent, allowing for desired combinations that other systems cannot achieve, enhancing the effectiveness of fire suppression.

Implementation Method 1

The rate controlling orifice is a most restrictive portion of the nozzle along the passageway and is sized to determine an amount of time required to fully discharge the fire suppressant agent from the reservoir

Methodology Applied
Scientific EffectPressure differential: Pressure Gradient

Implementation Method 2

The multiple diverter passageways are angled and the diverter is configured to affect a distance that the fire suppressant agent is discharged after the fire suppressant agent exits the nozzle and a spread of the fire suppressant agent after the fire suppressant agent exits the nozzle

Methodology Applied
Scientific EffectFluid flow direction control: Flow Separation

Implementation Method 3

an inner diameter of the inner sidewall varies along a longitudinal length of the passageway

Methodology Applied
Scientific EffectFlow velocity variation: Venturi Effect

Data Source

PatentUS11617907B2Fire suppression nozzle
Publication Date: 2023.04.04 TYCO FIRE PRODUCTS LP
  • US11617907B2 patent drawing
  • US11617907B2 patent drawing
  • US11617907B2 patent drawing

AI summary

A fire suppression apparatus is configured to spray a fire suppressant agent and includes a reservoir and a nozzle. The nozzle is fluidly coupled to the reservoir and includes an inlet aperture, an outlet aperture, a passageway, and a diverter. The passageway extends between the inlet aperture and the outlet aperture. The diverter is disposed within the passageway and includes multiple diverter passageways configured to receive the fire suppressant agent from an inner volume of the diverter and direct the fire suppressant agent towards an inner sidewall of the passageway.