Inlet distortion total pressure rake structure

A total pressure rake and connecting part technology, applied in the field of aero-engine design, can solve problems such as engine safety threats and limited anti-vibration capabilities, and achieve the effects of reducing impact, ensuring safety, and reducing test risks

Active Publication Date: 2017-01-04
AECC SHENYANG ENGINE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bolts and nuts are used to fasten the connection between the inner ring 2' and the total pressure rake arm 3', such as figure 1 The threaded connection between the self-locking nut 5' and the end of the total pressure rake arm 3', with a spacer 4' between them, the entire intake dis

Method used

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  • Inlet distortion total pressure rake structure
  • Inlet distortion total pressure rake structure
  • Inlet distortion total pressure rake structure

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Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail b...

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Abstract

The invention relates to an inlet distortion total pressure rake structure including a receiver, a total pressure rake and an inner ring. One end of the total pressure rake is fixed to the receiver and the other end of the total pressure rake is provided with a connecting portion. The inner ring has a convex mounting portion provided with a mounting groove in which the connecting portion is disposed. The connecting portion is in clearance fit with the mounting groove. A gap is arranged between the root end surface of the connecting portion and the end surface of the mounting portion. The inlet distortion total pressure rake structure has advantages of 1) having a high static strength reserve under the aerodynamic load of an engine inlet; 2) having a sufficient anti-vibration capability in an engine vibration environment; 3) preprocessing the dangerous section of the distortion total pressure rake and reducing the threat of the distortion total pressure rake components to engine safety; and 4) reducing the influence of the total pressure rake on engine inlet flow by changing the cross section of the total pressure rake and the inner ring.

Description

technical field [0001] The invention belongs to the technical field of aero-engine design, and in particular relates to an intake distortion total pressure rake structure. Background technique [0002] The air intake distortion rake is an indispensable import test sensing part of the aero-engine intake distortion test. How to improve its safety factor to ensure the safety of the engine test has always been one of the key research contents. The air intake distortion total pressure rake at the inlet of modern aeroengines mostly adopts a single cantilever structure or a structure in which the rake arm and the inner ring are fixed. Such as figure 1 and figure 2 As shown, it is a typical engine intake distortion total pressure rake, which is mainly composed of total pressure rake arm 3' and inner ring 2'. Bolts and nuts are used to fasten the connection between the inner ring 2' and the total pressure rake arm 3', such as figure 1 The threaded connection between the self-loc...

Claims

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Application Information

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IPC IPC(8): G01M15/02
CPCG01M15/02
Inventor 张校东王晓良薛秀生耿欣刘岩
Owner AECC SHENYANG ENGINE RES INST
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