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Aircraft turbomachine with reduction gearset

A technology for turbines and reducers, which is applied in the lubrication of machines/engines, gas turbine devices, turbines/propulsion devices, etc., and can solve problems such as large diameters in the radial direction

Active Publication Date: 2020-08-21
SAFRAN AIRCRAFT ENGINES SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution is also too large radially

Method used

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  • Aircraft turbomachine with reduction gearset
  • Aircraft turbomachine with reduction gearset
  • Aircraft turbomachine with reduction gearset

Examples

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Embodiment Construction

[0048] refer to figure 1, shows a turbine 1 with a speed reducer, which generally consists of a fan S, a low pressure compressor 1a, a high pressure compressor 1b, a combustion chamber 1c, a high pressure turbine 1d and a low pressure turbine 1e. The rotor of the high-pressure compressor 1b and the rotor of the high-pressure turbine 1d are connected by a high-pressure shaft 5 and form a high-pressure (HP) body with the high-pressure shaft 5 . The rotor of the low-pressure compressor 1a and the rotor of the low-pressure turbine 1e are connected by a low-pressure shaft 4 and form a low-pressure (LP) body. The shaft 3 of the fan S is driven by the LP shaft 4 via a reducer 7 .

[0049] The HP shaft 5 and the LP shaft 4 extend along an axis which is the axis of rotation of the turbine 1 . In the remainder of this description, the concepts "longitudinal" or "radial" and "inner" or "outer" are relative to this axis, and the concepts "upstream" and "downstream" refer to the flow. ...

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PUM

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Abstract

Aircraft turbomachine (1) with reduction gearset, comprising a first shaft (15) and a second shaft (3) having the one same axis of rotation, the second shaft being rotationally driven by the first shaft via a reduction gearset (7), the first shaft comprising elastically deformable means involving bellows section(s) and being connected to the reduction gearset by a connecting system likewise comprising elastically deformable means involving a hairpin (17) or bellows section(s).

Description

technical field [0001] The invention relates to an aircraft turbine with a reducer. Background technique [0002] Turbines, such as twin-flow turbojet engines, typically include an air intake with a fan whose outlet airflow is divided into an airflow entering the engine and forming a hot or primary flow, and an airflow flowing around the engine and forming a cold or secondary flow. [0003] The engine generally comprises, from upstream to downstream in the direction of airflow, at least one compressor, a combustion chamber, at least one turbine and an exhaust nozzle in which the combustion gases leaving the turbine and forming the main flow are mixed with the secondary flow. Turbines can also be of the "twin body" type, which means that the turbine includes two rotors arranged coaxially. The first body is called the low-pressure body, and the second body is called the high-pressure body. In this case, it is known that an engine has a low-pressure compressor, a high-pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/36F01D5/02F01D25/16F01D21/08
CPCF05D2240/62F01D5/026F01D21/08F01D25/164F02C7/36F05D2260/40311F02C7/06F02C7/32F02K3/06F05D2220/323F05D2240/50F05D2260/98
Inventor 朱利安·法比恩·帕特里克·比库利特亚历山大·让-玛丽·坦-基姆尼古拉斯·奥古斯特·马塞尔·波米尔阿诺·尼古拉斯·内格里米歇尔·吉尔伯特·罗兰·布罗
Owner SAFRAN AIRCRAFT ENGINES SAS
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