Engine air intake frame

An engine and frame technology, applied in the field of engine intake frame design, can solve problems such as weld cracking, engine damage, and catastrophic accidents

Inactive Publication Date: 2020-08-25
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the frame of the engine intake frame is a titanium alloy welded structure as a whole, with many welds, so that the overall structure of the engine intake casing has a large residual stress, poor stability, and violent vibrations are prone to occur during the engine's working process , it is very easy to cause cracking of the weld seam, resulting in damage to the engine, or even a catastrophic accident. The engine intake case frame with a titanium alloy welded structure as a whole has a relatively large mass, which does not meet the current aircraft weight reduction requirements

Method used

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Embodiment Construction

[0034] In order to make the technical solution of the present application and its advantages clearer, the technical solution of the present application will be further clearly and completely described in detail below in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only part of the application Examples are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, and other relevant parts can refer to the general design. In the case of no conflict, the embodiments in the application and the technologies in the embodiments Features can be combined with each other to obtain new embodiments.

[0035] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the application shall have the usual meanings und...

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Abstract

The invention belongs to the technical field of engine air intake frame design, and particularly relates to an engine air intake frame, which comprises an inlet casing, an inner ring and a plurality of support plates, wherein the inlet casing is provided with a plurality of through holes distributed in a circumferential direction, and a plurality of flanges are arranged on the outer wall of the inlet casing; each flange is correspondingly close to one through hole; the inner ring is arranged in the inlet casing; the plurality of support plates are arranged between the inlet casing and the inner ring; one end of each support plate is connected to the inner ring; and the other end of each support plate correspondingly extends out from one through hole and is connected to the corresponding flange through a bolt.

Description

technical field [0001] The application belongs to the technical field of engine intake frame design, and in particular relates to an engine intake frame. Background technique [0002] The air intake frame of the aircraft engine is one of the main load-bearing frames of the engine, which mainly includes the intake casing; the inner ring arranged in the intake casing; There are support plates distributed in different directions, one end of each support plate is connected with the intake casing, and the other end is connected with the inner ring. [0003] At present, the frame of the engine intake frame is a titanium alloy welded structure as a whole, with many welds, so that the overall structure of the engine intake casing has a large residual stress, poor stability, and violent vibrations are prone to occur during the engine's working process , It is very easy to cause weld cracking, resulting in engine damage, and even a catastrophic accident. The engine intake case frame ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/04
CPCF02C7/04
Inventor 胡丹郑海亮高凤树尚守堂王小颖
Owner AECC SHENYANG ENGINE RES INST
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