Enhanced Low Pressure Drop Acoustic Suppressor Nozzle for Inert Gas Discharge Systems

Publication ID: 24-11857817_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Low Pressure Drop Acoustic Suppressor Nozzle for Inert Gas Discharge Systems,” Published Technical Disclosure No. 24-11857817_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857817_0001_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,817.

Summary of the Inventive Concept

An improved acoustic suppressor nozzle for inert gas discharge systems that reduces pressure drop, turbulence, and sound generation while maintaining efficient inert gas flow and fire suppression performance.

Background and Problem Solved

Inert gas fire suppression systems are often limited by high pressure drops, turbulence, and noise generation in the nozzle, which can compromise system performance and safety. The original patent's low pressure drop acoustic suppressor nozzle, while effective, can still be improved upon. This new inventive concept addresses these limitations by introducing novel design elements that reduce pressure drop, turbulence, and sound generation.

Detailed Description of the Inventive Concept

The enhanced acoustic suppressor nozzle features a spiral-shaped middle portion in the second conduit to reduce turbulence and pressure loss. Additionally, the nozzle can be configured with a sound-dampening material strategically placed within the flow path to minimize sound power levels. Alternatively, the nozzle can incorporate helical grooves on the inner surface of the second conduit to reduce pressure loss and turbulence. The nozzle's design also allows for a tapered inner surface to reduce flow restriction and pressure drop. These design elements work together to optimize inert gas flow, reduce pressure drop, and minimize sound generation.

Novelty and Inventive Step

The new claims introduce novel design elements, such as the spiral-shaped middle portion, sound-dampening material, helical grooves, and tapered inner surface, which provide a significant reduction in pressure drop, turbulence, and sound generation compared to the original patent. These elements are non-obvious and provide a substantial improvement over the existing art.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include different spiral patterns, varying sound-dampening materials, or modified helical groove geometries. Additionally, the nozzle could be designed with adjustable flow restrictors or interchangeable sound-dampening inserts to accommodate different system requirements.

Potential Commercial Applications and Market

The enhanced acoustic suppressor nozzle has significant commercial potential in the fire protection industry, particularly in applications where noise reduction and efficient inert gas flow are critical, such as in data centers, museums, and other sensitive environments. The improved design can also be applied to other gas discharge systems, expanding its market reach.

Original Patent Information

Patent NumberUS 11,857,817
TitleLow pressure drop acoustic suppressor nozzle for inert gas discharge system
Assignee(s)Tyco Fire Products LP