Intermediate case of engine

An engine and intermediary technology, which is applied in the direction of engine components, machines/engines, liquid fuel engines, etc., can solve the problems of design difficulty and cost increase, limited space of support plates, and increase the complexity of airfoil structure, etc., to improve airflow distribution The effect of circumferential unevenness

CN106481368AActive Publication Date: 2017-03-08AECC COMML AIRCRAFT ENGINE CO LTD
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-03-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides an intermediate case of an engine. The intermediate case comprises an outer wall, an inner wall and a plurality of supporting plates supported between the outer wall and the inner wall, each supporting plate forms a hollow structure through two bent surfaces of a blade, wherein a cross flow fan is arranged on the tail position inside at least one of the supporting plates, the cross flow fan comprises a driving shaft extending along the height direction of the supporting plate and fan blades circumferentially distributed along the length of the driving shaft, and the two surfaces of the blade of the supporting plate with the cross flow fan are provided with an air inlet in the position of the cross flow fan and an air outlet in the tail end of a tail part.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to engine technology, in particular to an engine intermediate casing. Background technique

[0002] The intermediate casing of the aero-engine is used to undertake the airflow transition between the upstream and downstream high and low pressure components, and in order to meet the load-bearing requirements of the structural equipment and strength, there are generally multiple support plates in the intermediate casing. There are drive shafts and pipelines passing through the intermediary casing. Figure 1A and Figure 1B An intermediary casing between the low-pressure compressor and the high-pressure compressor, and an intermediary casing between the high-pressure turbine and the low-pressure turbine are shown, respectively. Figure 1C The structure of a typical intermediate casing is shown. Such as Figure 1C It can be seen that a typical intermediary casing 100 includes an outer wall 110 and an inner wall 130, and the outer wa...

Examples

Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

[0040] figure 2 is a schematic diagram showing the structure of the interposer casing 200 according to one aspect of the present invention. figure 2 Only one support plate 210 of the numerous support plates distributed along the circumferential direction of the main engine rotating shaft 130 of the intermediate casing 200 is shown in FIG. Also, for clarity, figure 2 The outer wall and inner wall of the intermediary casing 200 are also omitted in the figure, and a support plate 210 supported between them is directly shown. in addition, figure 2 Also shown in the engine main axis of rotation 230 . From Figure 1C The schematic diagram ...