Intermediate case assembly

An intermediary and component technology, applied in engine components, mechanical equipment, gas turbine devices, etc., can solve problems such as incompatibility, complex structure of double-ducted intermediary casings, etc.

Inactive Publication Date: 2020-08-28
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The intermediate casing with three-duct structure has a more complicated structure than the double-duct intermediate casing, and the existing dual-duct intermediate casing's duct conversion mechanism cannot be well matched to it

Method used

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Embodiment Construction

[0041] 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.

[0042] 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 relates to an intermediate case assembly. The intermediate case assembly comprises an intermediate case, a front shunt ring, an outer ring, an inner ring, a plurality of support plates,a plurality of duct conversion valves, a plurality of adjusting rods and an actuating mechanism, wherein the front shunt ring is arranged in the intermediate case; the outer ring is connected with thefront shunt ring in a butt joint mode; the inner ring is arranged in the outer ring; one end of each support plate is connected with the intermediate case, the other end of each support plate is connected with the inner ring, and a notch is formed in one side, face back onto the inlet end of the intermediate case, of each support plate; a rear shunt ring is clamped into the notches; the pluralityof duct conversion valves are hinged to the front shunt ring; the two sides of each duct conversion valve are in sealing contact with the corresponding two adjacent support plates; one end of each adjusting rod is hinged to the corresponding duct conversion valve; the actuating mechanism is arranged on the intermediate case and hinged with the other end of each adjusting rod so as to drive each adjusting rod to move and make each duct conversion valve to rotate, so that the intermediate case assembly is provided with an outer duct closing state and an outer duct opening state; in the outer duct closing state, each duct conversion valve is connected to the rear shunt ring in an overlap joint mode; and in the outer duct opening state, each duct conversion valve is separated from the rear shunt ring.

Description

technical field [0001] The application belongs to the design field of an engine intermediary case assembly, and in particular relates to an intermediary case assembly. Background technique [0002] The traditional aero-engine intermediary case is mostly a double-duct structure, which divides the airflow channel in the intermediary case into inner duct and outer duct through a shunt ring, and controls the inner duct and outer duct through the corresponding duct conversion mechanism. status of circulation. [0003] At present, with the development of aviation technology, an adaptive variable cycle engine is proposed, which adds an independent third duct by adding a shunt ring and its corresponding structure on the basis of the double-duct intermediary casing. A three-channel structure is formed in the box, so that the air flow can be better adjusted and controlled, and the overall performance of the engine can be improved. [0004] The intermediate casing with three-duct str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/04F02C7/057F02C7/28F02K3/075F02K3/077
CPCF02C7/04F02C7/057F02C7/28F02K3/075F02K3/077
Inventor 张弛门玉宾王坤
Owner AECC SHENYANG ENGINE RES INST
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