Inflation systems for evacuation slides and life rafts

Patent metadata

Field	Value
Publication number	US-11554999-B2
Application number	US-202017075453-A
Country	US
Kind code	B2
Filing date	Oct 20, 2020
Priority date	Nov 15, 2019
Publication date	Jan 17, 2023
Grant date	Jan 17, 2023

Abstract

An inflation system for an evacuation system may comprise an inflator and a controller operationally coupled to the inflator. The inflator may include a solid gas generating material and an igniter configured to ignite in response to receiving an ignite signal. The solid gas generating material may be configured to generate a gas in response to an ignition of the igniter. The controller may be configured to send the ignite signal to the inflator.

First claim

What is claimed is:

1. An inflation system for an inflatable, comprising:
a first inflator including:
a solid gas generating material; and
an igniter configured to ignite in response to receiving a first ignite signal, wherein the solid gas generating material is configured to generate a gas in response to an ignition of the igniter;

a first panel located in an interior volume of the inflatable, wherein the first panel comprises a plurality of panel openings, wherein the first inflator is located through a first opening of the plurality of panel openings in the first panel, and wherein other openings in the plurality of openings allow the gas to flow through the first panel;
a second panel located in the interior volume of the inflatable, wherein the second panel forms a sealing interface such that the gas is prevented from flowing through the second panel; and
a controller operationally coupled to the first inflator and configured to send the first ignite signal to the first inflator.

2. The inflation system of claim 1 , further comprising a second inflator operationally coupled to the controller, wherein the second inflator is located through a second opening of the plurality of panel openings in the first panel, wherein the controller is configured to send a second ignite signal to the second inflator, and wherein the controller is configured to send the first ignite signal to the first inflator prior to sending the second ignite signal to the second inflator.

3. The inflation system of claim 2 , further comprising:
a first sensor in communication with the controller;
a tangible, non-transitory memory configured to communicate with the controller, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising:
receiving, by the controller, an output from the first sensor; and
determining, by the controller, an ignition sequence for the first inflator and the second inflator based on the output from the first sensor.

4. The inflation system of claim 3 , wherein the first sensor is configured to measure at least one of a temperature, a wind speed, or a sill height.

5. The inflation system of claim 4 , further comprising a second sensor in communication with the controller, wherein the second sensor is configured to measure a pressure of the inflatable.

6. The inflation system of claim 4 , wherein the inflatable comprises an evacuation slide, and wherein the first inflator is located closer to a head end of the evacuation slide as compared to the second inflator.

7. The inflation system of claim 1 , wherein the inflatable includes at least one of an evacuation slide or a life raft.

8. An evacuation system, comprising:
an inflatable; and
a first inflator configured to inflate the inflatable, the first inflator including:
a solid gas generating material; and
a first igniter configured to ignite in response to receiving a first electrical signal, wherein the solid gas generating material is configured to generate a gas in response to an ignition of the first igniter;

a first panel located in an interior volume of the inflatable, wherein the first panel comprises a plurality of panel openings, wherein the first inflator is located through a first opening of the plurality of panel openings in the first panel, and wherein other openings in the plurality of openings allow the gas to flow through the first panel;
a second panel located in the interior volume of the inflatable, wherein the second panel forms a sealing interface such that the gas is prevented from flowing through the second panel; and
a controller operationally coupled to the first inflator and configured to send the first electrical signal to the first inflator.

9. The evacuation system of claim 8 , further comprising a second inflator operationally coupled to the controller, the second inflator including a second igniter configured to ignite in response to receiving a second electrical signal from the controller, wherein the second inflator is located through a second opening of the plurality of panel openings in the first panel.

10. The evacuation system of claim 9 , wherein the controller is configured to send the first electrical signal prior to the second electrical signal.

11. The evacuation system of claim 9 , further comprising:
a first sensor in communication with the controller, wherein the first sensor is configured to measure at least one of a temperature, a wind speed, or a sill height;
a tangible, non-transitory memory configured to communicate with the controller, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising:
receiving, by the controller, at least one of a temperature measurement, a wind speed measurement, or a sill height measurement from the first sensor; and
determining, by the controller, an ignition sequence for the first inflator and the second inflator based on the at least one of the temperature measurement, the wind speed measurement, or the sill height measurement.

12. The evacuation system of claim 11 , further comprising a second sensor in communication with the controller, the second sensor being configured to measure a pressure of the inflatable.

13. The evacuation system of claim 8 , wherein the first inflator includes:
a nozzle located at an end of the first inflator opposite the solid gas generating material; and
a seal configured to form a sealing interface with the inflatable, and wherein a portion of the first inflator extending from the seal to the nozzle is located in an internal volume defined by the inflatable.

14. The evacuation system of claim 8 , further comprising a second inflator located through the first panel, wherein a first nozzle of the first inflator is oriented away from a second nozzle of the second inflator and wherein the first inflator is located through a first opening of the plurality of panel openings in the first panel.

15. A method of forming an inflation system, comprising:
locating a first panel in an interior volume of an inflatable, wherein the first panel comprises a plurality of panel openings;
locating a second panel located in the interior volume of the inflatable, wherein the second panel forms a sealing interface such that a gas is prevented from flowing through the second panel;
locating a first inflator through a first opening of the plurality of panel openings in the first panel in the interior volume of the inflatable, the first inflator, including:
a solid gas generating material; and
an igniter configured to ignite in response to receiving an electrical signal, wherein the solid gas generating material is configured to generate the gas in response to an ignition of the igniter;

operationally coupling a controller to the first inflator; and
configuring the controller to send a first ignite signal to the first inflator,
wherein other openings in the plurality of openings allow the gas to flow through the first panel.

16. The method of claim 15 , further comprising:
locating a second inflator through a second opening of the plurality of panel openings in the first panel located in the interior volume of the inflatable; and
configuring the controller to send a second ignite signal to the second inflator.

17. The method of claim 16 , further comprising:
operationally coupling a sensor to the controller; and
configuring the controller to determine an ignition seq

Assignees

• Goodrich Corp

Inventors

• Shen Guangqing
• Werbelow Jeffrey Martin

Classifications

• B64D25/14 Primary

  Inflatable escape chutes · CPC title

• C06D5/04 Primary

  by auto-decomposition of single substances · CPC title

• B63C2009/042

  inflatable · CPC title