De-icing and conditioning device for an aircraft

Patent metadata

Field	Value
Publication number	US-2016102610-A1
Application number	US-201514974427-A
Country	US
Kind code	A1
Filing date	Dec 18, 2015
Priority date	Jun 28, 2013
Publication date	Apr 14, 2016
Grant date	—

Abstract

The present disclosure provides a device for de-icing an air inlet lip of an aircraft nacelle. The device includes a pre-exchanger, an intake orifice of taking in low-pressure air downstream from a fan, and two high-pressure air intake orifices downstream from a compressor in addition to controlled valves and check valves installed in an air flow network. In particular, the pre-exchanger includes a low-pressure air outlet capable of opening into the air inlet lip of the aircraft nacelle via a pipe of the air flow network.

First claim

What is claimed is:

1 . A device for de-icing an air intake lip of an aircraft nacelle, said device comprising:
a pre-exchanger; a bleeding means configured to bleed a low-pressure air downstream of a fan; and two means for bleeding a high-pressure air downstream of a compressor as well as controlled valves and check valves installed in an air circulation network, wherein the pre-exchanger comprises a low-pressure air outlet configured to open into the air intake lip of the aircraft nacelle via a piping of the air circulation network.

2 . The de-icing device according to claim 1 , further comprising a discharge valve configured to discharge a high-pressure air circulating through the pre-exchanger.

3 . The de-icing device according to claim 1 , further comprising a valve configured to mix at least a part of the high-pressure air for a cabin conditioning and for an airfoil de-icing, with the low-pressure air for the air intake lip de-icing at the low-pressure air outlet of the pre-exchanger.

4 . The de-icing device according to claim 1 , further comprising a valve between the low-pressure air outlet of the pre-exchanger and the air intake lip.

5 . The de-icing device according to claim 1 , further comprising a valve between the low-pressure air outlet of the pre-exchanger and an outside of the aircraft nacelle.

6 . The de-icing device according to claim 1 , further comprising a detector of a temperature of the air intake lip, the detector configured to disable the de-icing of the air intake lip in case of overheat of the air intake lip.

7 . A nacelle comprising the device for de-icing the air intake lip according to claim 1 .

8 . The nacelle according to claim 7 , further comprising a forced opening means for each controlled valve.

9 . An aircraft comprising the nacelle according to claim 7 .

Assignees

• Aircelle Sa

Inventors

• Caruel Pierre
• Hurlin Hervé

Classifications

• B64D2033/0233

  comprising de-icing means · CPC title

• F02C7/047 Primary

  Heating to prevent icing · CPC title

• B64D33/02

  of combustion air intakes · CPC title

• B64D15/04

  Hot gas application · CPC title

• Y02T50/60

  Efficient propulsion technologies, e.g. for aircraft · CPC title