Multi-layer complicated shell and shell assembly

Abstract

The invention discloses a multi-layer complicated shell and a shell assembly. The shell comprises a shell outer wall, a guiding cone, a main valve guiding wall, an auxiliary guiding wall and a plurality of rib plates, wherein the shell outer wall is connected with the guiding cone through the multiple rib plates, the guiding cone is located in the shell outer wall, the multiple rib plates are distributed in the peripheral direction of the shell outer wall, one end of the main valve guiding wall is connected with the inner wall of the guiding cone, one end of the auxiliary guiding wall is connected with the inner wall of the guiding cone, and the auxiliary guiding wall is located in the main valve guiding wall. The multi-layer complicated shell achieves axial flow type flowing of a high-pressure and ultralow-temperature medium, achieves optimal configuration between a valve actuating mechanism and a flow resistor and can meet the high working condition and the demand for multiple timesof reliable use, and the size and weight of the whole multi-layer complicated shell are decreased.

Description

technical field [0001] The invention belongs to the field of high-thrust aerospace engines, and in particular relates to a multi-layer complex casing and a casing assembly. Background technique [0002] With the rapid development of my country's spaceflight, and with the increase of rocket thrust, the parameters of its engine assembly, such as pressure, flow, size and weight, have also increased significantly. For flight products, how to reduce the size and weight as much as possible on the premise of meeting the design parameters with high reliability puts forward higher requirements for the design and process technology of complex shells and shell components. [0003] The existing shell design technology of low-temperature bacteria valve usually adopts a single-layer structure, and its main function is to bear pressure and guide the moving parts. Although the structure is relatively simple, there are mainly the following problems: 1. The flow resistance loss is relatively ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a multi-layer complex shell and shell assembly, to solve the problem of large flow resistance loss, poor component integration, and The technical difficulty of not being able to realize the slow opening function of the valve, realize the axial flow of high pressure and ultra-low temperature medium, realize the optimal configuration between the valve actuator and flow resistance, reduce the size and weight of the entire product, and meet high working conditions and The need for repeated reliable use

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