A rear channel ejector with the valve body tightly closed in the circumferential direction

A technology of ejector and valve body, which is applied in the field of variable cycle engine structure design, can solve the problems of complex sealing structure, complex cover tight structure, unreliable air tightness of airflow passage, etc., and achieves the effect of tight and reliable structure

Active Publication Date: 2021-07-02
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

[0004] Most of the current designs cover the valve body piece driven by the synchronous ring. This kind of cover structure is relatively complicated. For example, the line contact between the active plate and the sealing plate with scale-like action is used to seal the line with an oblique angle. Yes, the sealing sheet is a cross-section "I" structure, this kind of sealing structure is relatively complicated, and the airtightness is not very reliable when the air flow channel is closed

Method used

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  • A rear channel ejector with the valve body tightly closed in the circumferential direction
  • A rear channel ejector with the valve body tightly closed in the circumferential direction
  • A rear channel ejector with the valve body tightly closed in the circumferential direction

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[0039] The above objects, features, and advantages of the present invention will be more clearly understood, and the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the features of the present invention can be combined with each other in the case of an unable conflict.

[0040] Many of the specific details are set forth in the following description to fully understand the present invention, but the present invention may also employ other different from those described herein, and therefore, the protection range of the present invention is not subject to the specifically disclosed below. The limitation of the embodiment.

[0041] The design method taken by the present invention is: modeling, rigid body simulation, flexible simulation. Such as Figure 1-4 As shown, a huntellet collector of a valve body circumferential cover, characterized in that an outer casing 1 is provided, a pair of hydraulic...

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Abstract

The invention discloses a rear duct ejector whose valve body is tightly covered in the circumferential direction. Circumferentially actuated valve body and inner casing for crank and pair of ball-joint links. The technical scheme of the present invention can adjust the outlet area of ​​the variable cycle engine; there is a circumferential sliding groove between the valve body and the inner casing, so the opening and closing of the airflow channel can be realized by circumferential rotation; the valve body is a circumferential sliding groove. Tighten to a tightly capped one-piece valve body, not multiple valve body pieces. It solves the problem that it is difficult to realize the synchronous movement of multiple valve body pieces due to different stress conditions.

Description

Technical field [0001] The present invention belongs to the field of variable circulating engine structure design, and more particularly to a rear tuning of a valve body circumference. Background technique [0002] The variable circulating engine is also known as the geometric adjustable engine, refers to the engine of the engine's connotation ratio of the engine can be changed under the action of the component geometry. Since the creation of this engine is more adjustable, the geometric adjustable engine is capable of having the advantages of the high unit thrust of the turbine jet engine and the low-energy rate of the turbine fan engine, low noise. [0003] The convetriotous compassion of change circulating engines is mainly achieved by adjustable coverage, which generally has two conversators with two conserved speculoes - front-tunitional culvert (forged The emitter) and the post-adjustable area conversion include an emitter (a rear calendering ejector). Among them, the role ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K3/04F02K1/38
CPCF02K1/38F02K3/04
Inventor 董少静张益恺申秀丽廖智宇
Owner BEIHANG UNIV
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