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Auxiliary power unit (APU) of an aircraft

A backup power device and aircraft technology, applied to auxiliary power equipment, aircraft parts, transportation and packaging, etc., can solve problems such as sound pollution, pollution, APU use restrictions, etc.

Active Publication Date: 2011-09-07
AIRBUS OPERATIONS SL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The disadvantage presented by the conventional configuration described above is that its operation generates noise and at the same time as it consumes fuel, emits polluting gases into the environment, all of which generate sound pollution and air pollution
[0007] This mode of operation allows full autonomy of the aircraft but means that the operating costs of the route cannot be ignored
Furthermore, it is likely that in the future national, international or airport regulations will present greater restrictions or penalties on the use of APUs for acoustic and / or environmental reasons

Method used

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  • Auxiliary power unit (APU) of an aircraft
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  • Auxiliary power unit (APU) of an aircraft

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Embodiment Construction

[0025] Given below is a detailed description of the invention based on the drawings reviewed above.

[0026] first and by means of figure 1 , briefly explaining the configuration of a conventional APU, which includes a power module 1 supplied with fuel 2 , which has smoke exhaust 3 and air intake 13 , and which is also used for a compressor 4 to provide aerodynamic power 7 . It also includes a generator 6 for generating electricity 8 . In this configuration, a gearbox 5 must be included in order to accommodate the different rotational speeds required between the power module 1 and the generator 6 for generating electrical and / or aerodynamic power. Furthermore, the APU is also conventionally provided to be able to generate hydraulic power, pneumatic power or electric power or any combination thereof, for which purpose, instead of the compressor 6 or in parallel thereto, a hydraulic pump is included, this hydraulic pump not being drawn so as not to render the drawing complicat...

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Abstract

Auxiliary power unit (APU) of an aircraft comprising a power module (1) powered by fuel (2), a gearbox (5), an electricity generator (6), and an element chosen from a compressor (4), a hydraulic pump and a combination thereof, to provide an operating mode for the production of power chosen from electric (8), pneumatic (7), hydraulic and a combination thereof; it offers the innovation of includingan electric motor (9), built into the electricity generator (6), both being connected to the power module (1) via the gearbox (5a) and a main clutch (10). Furthermore the compressor (4) and / or hydraulic pump are also connected to the power module (1) via the gearbox (5a), and the main clutch (10). This architecture enables the expansion of the operating modes of the APU, increasing its performance and reducing harmful environmental effects.

Description

technical field [0001] Alternative power units (APUs) of this type traditionally included in aircraft to provide them with autonomy have specific adverse effects on the environment, for example pollutants in airports, both acoustically and gaseously. In addition, three types of external power may be required for the operation of the aircraft on the ground: electric power, high or low pressure pneumatic power, and hydraulic power. [0002] The object of the present invention is to provide versatility of use, capable of reducing adverse environmental impacts and at the same time facilitating the work of aircraft on the ground by reducing the number and types of external power sources. [0003] To this end, the present invention provides different modes of operation depending on the need for a backup power plant and is further described below. Background technique [0004] Contemporary aircraft, primarily the larger ones, are often equipped with an alternate power unit (APU) c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D41/00
CPCB64D2041/002B64D41/00
Inventor H.卡萨多阿巴奎罗C.卡萨多蒙特罗
Owner AIRBUS OPERATIONS SL