Waste-gas line for a battery in an aircraft

Patent metadata

Field	Value
Publication number	US-10859193-B2
Application number	US-201816177606-A
Country	US
Kind code	B2
Filing date	Nov 1, 2018
Priority date	Nov 29, 2017
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

A waste-gas line has a first pipe section connectable to a battery and having an inlet end and a first flange, a separate second pipe section having a second outlet end and a second flange, and an inner sleeve and an outer sleeve, both of a non-conductive material. The inner sleeve is positioned on an outer side of the first flange and of the second flange. The outer sleeve surrounds the first flange, the second flange and the inner sleeve. The first and the second flanges are fastened to one another in such a way that at least the second pipe section is electrically insulated by the inner and the outer sleeves and, by the combination of inner and outer sleeves, is heat-resistant up to a temperature of at least 1100° C. and pressure-resistant up to a pressure of at least 8 bar, for a duration of at least 120 seconds.

First claim

The invention claimed is:

1. A waste-gas line for a battery in an aircraft, comprising:
a first pipe section connectable to the battery and having an inlet end at a first end and a first flange at a second end opposite the first end;
a separate second pipe section having a second outlet end at a first end and a second flange at a second end opposite the first end;
an inner sleeve and an outer sleeve, wherein the inner sleeve and the outer sleeve are composed of a non-conductive material,
wherein the inner sleeve is positioned on an outer side of the first flange and of the second flange,
wherein the outer sleeve surrounds the first flange, the second flange and the inner sleeve, and
wherein the first flange and the second flange are fastened to one another in such a way that at least the second pipe section is electrically insulated by the inner sleeve and the outer sleeve, and the combination of inner sleeve and outer sleeve is heat-resistant up to a temperature of at least 1100° C. and pressure-resistant up to a pressure of at least 8 bar, in each case for a duration of at least 120 seconds.

2. The waste-gas line according to claim 1 , wherein in each case one spacer is attached to the first flange and to the second flange in order to space the inner sleeve and the outer sleeve apart from one another in a radial direction.

3. The waste-gas line according to claim 2 , wherein the spacers attached to the first flange and the second flange are dimensioned such that the inner sleeve fills a spacing predefined by the spacers.

4. The waste-gas line according to claim 2 , wherein the spacers attached to the first flange and the second flange have, at least over a spacing defined by the spacers, an additional heat-resistant material.

5. The waste-gas line according to claim 2 , wherein the outer sleeve is configured to surround the first flange, the second flange and the spacers.

6. The waste-gas line according to claim 1 , wherein the non-conductive material is silicone.

7. The waste-gas line according to claim 1 , wherein the outer sleeve is connected in positively locking and/or non-positively locking fashion to the first flange and the second flange in order to thus connect the first pipe section and the second pipe section.

8. The waste-gas line according to claim 1 , wherein the waste-gas line further comprises at least two pipe clamps for the purposes of fastening the outer sleeve to the first pipe section and to the second pipe section.

9. An aircraft, comprising:
a fuselage with a fuselage skin and with a rupture disk arranged therein;
a battery; and
a waste-gas line according to claim 1 ,
wherein the inlet end is connected to the battery, and the outlet end is connected to an inner side of the rupture disk, and
wherein the rupture disk is configured to rupture in the presence of a predetermined pressure within the waste-gas line in order to discharge the waste gases from the aircraft.

10. The aircraft according to claim 9 , wherein the battery is a lithium-ion battery.

11. The waste-gas line according to claim 1 , wherein the first pipe section is connectable to the battery at the inlet end.

12. The waste-gas line according to claim 1 , wherein the first pipe section is connectable to an electrolyte outlet of the battery.

Assignees

• Airbus Operations Gmbh

Inventors

• Harmuth Dirk
• Meinke Jürgen

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• B64D33/00 Primary

  Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for · CPC title

• B64D45/02

  Lightning protectors; Static dischargers · CPC title

• H01M50/3425

  in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member · CPC title

• F16L25/12

  Joints for pipes being spaced apart axially · CPC title