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Elastic sheet sealing structure

An elastic sheet and sealing sheet technology, applied in the field of elastic sheet sealing structure, can solve the problems of poor sealing effect, complex sealing structure, poor assembly operability, etc., and achieve easy assembly and use, good sealing effect, and manufacturing low cost effect

Inactive Publication Date: 2019-10-11
AECC SHENYANG ENGINE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, due to the small structural size space between the outer casing and the inner casing, and the sealing structure is generally more complicated, the assembly operability is poor, and the poor assembly operability will also lead to the final seal. Strict effect and poor effect

Method used

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  • Elastic sheet sealing structure
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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application. 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 application. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application. Embodiments of the present application will be described in detail below in conjunction with th...

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Abstract

This invention belongs to the field of sealing structural design, particularly relates to an elastic sheet sealing structure. The elastic sheet sealing structure comprises an outer-layer casing, an inner-layer casing and a sealing sheet assembly. The outer-layer casing and the inner-layer casing are both cylindrical, the inner-layer casing is nested inside the outer-layer casing, and the outer wall surface of the inner-layer casing is provided with an annular boss in the circumferential direction; the sealing sheet assembly is annular, the outer ring end of the sealing sheet assembly is provided with a fan-shaped segment, the sealing sheet assembly is arranged on the inner-layer casing in a sleeving manner, and a preset included angle is formed between the sealing sheet assembly and the axis direction of the inner-layer casing; the inner ring end of the sealing sheet assembly is fixedly connected with the annular boss of the inner-layer casing, and the outer ring end of the sealing sheet assembly abuts against the outer-layer casing; and when airflow flows, the fan-shaped segment can press the outer-layer casing. The elastic sheet sealing structure is simple in structure, good in sealing effect, low in manufacturing cost, easy to assembly and use and capable of being used in a small structural size space.

Description

technical field [0001] The application belongs to the field of sealing structure design, in particular to an elastic sheet sealing structure. Background technique [0002] The casings of aero-engines and gas turbines generally adopt a multi-layer structure, and there is air flow between the outer casing and the inner casing to cool the casing and other components. In order to ensure that the airflow does not leak, a sealing structure design is required between the outer casing and the inner casing. [0003] In the prior art, due to the small structural size space between the outer casing and the inner casing, and the sealing structure is generally more complicated, the assembly operability is poor, and the poor assembly operability will also lead to the final seal. Strict effect is poor. [0004] Therefore, it is desirable to have a technical solution to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/26F01D11/00
CPCF01D25/26F01D11/005F01D11/003
Inventor 王天一王鹏栾永先牛俊涛刘日晨
Owner AECC SHENYANG ENGINE RES INST
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