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Variable-cycle engine mode control mechanism and intermediate casing structure with variable-cycle engine mode control mechanism

A variable cycle engine, mode control technology, applied to engine components, machines/engines, mechanical equipment, etc.

Pending Publication Date: 2020-06-02
AECC SHENYANG ENGINE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is a lack of a mechanism that can efficiently and quickly control the conversion of variable cycle aeroengines in single-duct operation mode and double-duct operation mode

Method used

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  • Variable-cycle engine mode control mechanism and intermediate casing structure with variable-cycle engine mode control mechanism
  • Variable-cycle engine mode control mechanism and intermediate casing structure with variable-cycle engine mode control mechanism
  • Variable-cycle engine mode control mechanism and intermediate casing structure with variable-cycle engine mode control mechanism

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Embodiment Construction

[0041] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the related application, not to limit the application. In addition, it should be noted that, for ease of description, only parts relevant to the present application are shown in the drawings.

[0042] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0043] It should be noted that in the description of this application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The terms of the indicated direction or positional relationship are based on the direction or positional ...

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Abstract

The invention belongs to the technical field of variable-cycle engine mode selection and design, and specifically relates to a variable-cycle engine mode control mechanism. The variable-cycle engine mode control mechanism comprises a plurality of valve block connecting rods, a plurality of piston cylinders, a plurality of piston rods, linkage rings and actuator cylinders, wherein the one ends of each valve block connecting rod are correspondingly hinged to valve blocks; the piston cylinders are connected to the inner wall of an outer casing of an intermediate casing; each piston rod corresponding penetrates through each piston cylinder, and one ends of the piston rods are hinged to the other ends of the valve block connecting rods correspondingly; the linkage rings are connected to the other ends of each piston rod; the piston rods of the actuator cylinders are connected with the linkage rings to drive the movement of the linkage rings so as to drive each piston rod to move in the axial direction of the corresponding piston cylinders, and the corresponding valve blocks are driven to rotate through each valve block connecting rod, so that each valve block is simultaneously in a closed state or an open state. The invention relates to an intermediate casing structure with the variable-cycle engine mode control mechanism.

Description

technical field [0001] The application belongs to the field of variable-cycle engine mode selection design technology, and in particular relates to a variable-cycle engine mode control mechanism and its intermediary case structure. Background technique [0002] The intermediate casing of a variable cycle aero-engine usually includes an inner duct (leading to the core engine) and an outer duct (leading to the tail nozzle) on the flow channel. When a large thrust is required, the valve plate is closed to close the outer duct, and the low-pressure compressor The outlet airflow all flows to the core engine. At this time, the engine is in the "turbojet" working mode, that is, the single-duct working mode; when cruising, open the valve plate to open the outer duct, and the outlet airflow of the low-pressure compressor is unimpeded at a certain ratio. Through the inner duct and the outer duct, it flows to the core engine and the tail nozzle. At this time, the engine is in the "turb...

Claims

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Application Information

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IPC IPC(8): F02K3/075F02C7/057F01D25/26
CPCF02K3/075F02C7/057F01D25/26
Inventor 胡丹阎深郑海亮刚铁张成凯
Owner AECC SHENYANG ENGINE RES INST
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