Gas turbine engine generator

A gas turbine and engine technology, applied in the direction of gas turbine devices, engine components, engine functions, etc., to achieve the effect of direct assembly and disassembly

Pending Publication Date: 2021-01-12
ROLLS ROYCE PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such arrangements provide efficient packaging, but present other difficulties

Method used

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  • Gas turbine engine generator
  • Gas turbine engine generator
  • Gas turbine engine generator

Examples

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Embodiment Construction

[0051] figure 2 and image 3 A gas turbine engine in the form of a low-bypass turbofan 10 with a main axis of rotation 9 is shown. The axis of rotation 9 defines a rearward direction X substantially parallel to the air flow through the engine 10 , a forward direction opposite to this rearward direction, and a radial direction Y. The engine 10 includes an air intake 12 and a pusher fan / low pressure compressor 13 that generates two airflows: a core airflow A and a bypass airflow B. The gas turbine engine 10 includes a core 11 receiving a core flow A. As shown in FIG. The engine core 11 includes a high-pressure compressor 14 , a combustion device 15 , a high-pressure turbine 16 , a low-pressure turbine 17 and a core exhaust nozzle 18 in series in axial flow. A nacelle 19 surrounds the gas turbine engine 10 and defines a bypass conduit 20 and a bypass exhaust nozzle 21 . The bypass airflow B flows through a bypass duct 50 delimited by a radially inner wall in the form of the ...

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PUM

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Abstract

An aircraft gas turbine engine (10) comprises a main engine shaft (22, 23), a main engine shaft bearing arrangement (36, 44, 49, 50) configured to rotatably support the main engine shaft (22, 23) andan electric machine (30) comprising a rotor (34) and a stator (32). The rotor (34) is mounted to the main engine shaft (22, 23) and is rotatably supported by the main engine shaft bearing arrangement(36, 44, 49, 50), and the stator (32) is mounted to static structure (46) of the gas turbine engine (10).

Description

technical field [0001] The present disclosure relates to electric machines for gas turbine engines and gas turbine engines including electric machines. Background technique [0002] Aircraft gas turbine engines provide propulsion and electrical power to the aircraft. Accordingly, such engines include electric machines, such as generators, for providing electrical power. Additional electric machines in the form of motors configured to drive fluid pumps, such as oil pumps and fuel pumps, may also be provided. The functions of the generator and the motor can be combined so that, for example, the generator can be used as a starter motor during starting. [0003] As electrical power requirements increase, and electric motors are increasingly used to replace hydraulic and air motors in aircraft, the size of electric machines on aircraft relative to the size of gas turbine engines is steadily increasing. Therefore, it is becoming increasingly difficult to package such machines i...

Claims

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Application Information

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IPC IPC(8): F02C7/36F02C6/00F02C7/06
CPCF02C7/36F02C6/00F02C7/06F05D2220/76F02C7/32F01D15/10F05D2260/311F05D2240/50F01D25/16Y02T50/60F01D19/00F01D25/162F01D25/166F02C6/04
Inventor 保罗·R·戴维斯
Owner ROLLS ROYCE PLC
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