Pressurized inerting system

Patent metadata

Field	Value
Publication number	US-11834191-B2
Application number	US-202117526355-A
Country	US
Kind code	B2
Filing date	Nov 15, 2021
Priority date	Oct 2, 2018
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

A system and method for providing dried inert gas to a protected space is disclosed.

First claim

What is claimed is:

1. A system for providing inert gas to a protected space, comprising
a boost compressor configured to receive pressurized air and boost a pressure of the pressurized air;
a chemical inert gas generator; and
an inert gas flow path in operative fluid communication with the chemical inert gas generator, a condenser and the protected space, wherein the condenser operates at a pressure greater than or equal to 2 atmospheres absolute pressure and is located between the chemical inert gas generator and the protected space along the inert gas flow path.

2. The system of claim 1 , wherein the chemical inert gas generator comprises a catalytic oxidation unit.

3. The system of claim 2 , wherein the catalytic oxidation unit operates at a temperature greater than 150° C.

4. The system of claim 1 , wherein the chemical inert gas generator comprises a proton exchange membrane electrochemical device.

5. The system of claim 4 , wherein the pressurized air flow path further comprises a heat exchanger.

6. The system of claim 4 , wherein the pressurized air flow path comprises a heat exchanger before the boost compressor and an additional heat exchanger after the boost compressor.

7. The system of claim 1 , wherein the chemical inert gas generator comprises a solid oxide electrochemical device.

8. The system of claim 7 , wherein the chemical inert gas generator operates at a temperature greater than 700° C.

9. The system of claim 7 , wherein the inert gas flow path further comprises a heat exchanger between the chemical inert gas generator and the compressor.

10. The system of claim 1 , wherein the pressurized air flow path comprises a bypass valve in parallel with the boost compressor.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Rheaume Jonathan
• Emerson Sean C

Classifications

• B64D37/32 Primary

  Safety measures not otherwise provided for, e.g. preventing explosive conditions · CPC title

• B01D53/265

  by refrigeration (condensation) · CPC title

• B01D53/326

  in electrochemical cells · CPC title

• A62C99/0018 Primary

  using gases or vapours that do not support combustion, e.g. steam, carbon dioxide · CPC title

• A62C3/08

  in aircraft {(A62C3/0207 takes precedence)} · CPC title