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An auxiliary power unit with integrated fire detection system

A technology of auxiliary power unit and casing, applied in APU. It can solve problems such as weight increase and achieve the effect of reducing weight

Active Publication Date: 2015-07-01
AIRBUS OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this type of solution results in a reinforced APU assembly that allows the APU to better withstand firing conditions, this solution has the disadvantage of increased weight

Method used

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  • An auxiliary power unit with integrated fire detection system
  • An auxiliary power unit with integrated fire detection system
  • An auxiliary power unit with integrated fire detection system

Examples

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Embodiment Construction

[0026] figure 2 The housing 21 of the APU 5 is shown positioned within the APU compartment 8 , the components of the APU 5 having been detailed to illustrate the preferred location of the mount 2 . Generally, the APU5 includes a generator, a gearbox, a load compressor, a booster chamber, a compressor, a combustion chamber, a turbine, and a discharge duct, where an APU discharge pipe is attached. According to a preferred embodiment, the APU housing 21 includes a generator housing 10, a gearbox housing 1, a load compressor housing 11, a booster chamber housing 12, a compressor housing 13, a combustion chamber housing 14, a turbine housing Body 22 and discharge pipe housing 15.

[0027] Mounts 2 are preferentially provided at the gearbox housing 1 , the plenum housing 12 and the combustion chamber housing 14 , as shown, in order to attach the APU 5 to its compartment 8 . Since the combustion chamber housing 14 was originally designed to be fireproof in its entirety in order to...

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PUM

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Abstract

The present invention refers to an Auxiliary Power Unit ("APU") for an aircraft with reduced weight, but which at the same time meets all fire-related airworthiness standards. The auxiliary power unit of the invention, comprises a metallic housing (1) having mounts (2) for attaching the housing (1) to an external structure, wherein the auxiliary power unit further comprises at least one temperature sensor (3) suitable for detecting temperature under fire conditions, wherein said temperature sensor (3) is coupled with said mounts (2) for sensing temperature at the housing (1).

Description

technical field [0001] The present invention relates to an auxiliary power unit ("APU") for an aircraft with reduced weight but at the same time fulfilling all ignition-related airworthiness standards. More specifically, the present invention relates to an APU with integrated sensing means for detecting temperature under ignition conditions. [0002] Another object of this invention is to provide an APU that complies with the standards and safety requirements for APUs and their housings, in particular for maintaining them in serviceable and safe attachment to the aircraft fuselage in case of ignition security requirements. [0003] Another object of the invention is to provide an APU system that responds faster to ignition when an ignition occurs in the APU compartment. Background technique [0004] An APU in an aircraft is a small turbine engine designed to provide compressed air for electrical, hydraulic or pneumatic power primarily when the aircraft's main engines are n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D41/00
CPCF05D2220/50F02C7/20F05D2240/90G01K1/14B64D41/00F05D2260/83B64D2041/002F16H57/02G01K13/00F02C6/00B64D45/00B64D2045/009Y02T50/40Y10T74/2186
Inventor 卡洛斯·卡萨多蒙特罗玛丽亚·克鲁斯·萨马罗马丁皮奥·费尔南德斯洛佩兹
Owner AIRBUS OPERATIONS GMBH
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