Rocket propellant storage tank rear bottom structure, propellant storage tank and liquid rocket

By integrating the integrated design of vortex removal, anti-collapse and filtration functions in the rear bottom structure of the rocket propellant storage tank, the problems of concave and vortex flow during the outflow of the liquid rocket propellant are solved, the stability and efficiency of the structure are improved, and the cost is reduced.

CN119686870AActive Publication Date: 2025-03-25北京天兵科技有限公司
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Patent Information

Application Number
CN202411790823.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-03-25
Estimated Expiration
2044-12-06

AI Technical Summary

Technical Problem

Multiple liquid rockets with parallel structures are prone to concave and vortex flow during the propellant outflow process, resulting in propellant gas clamping and pressure loss, and may even cause explosions. In addition, external impurities enter the engine and damage the turbo pump, resulting in the failure of the rocket launch mission. The prior art improves the outflow effect by installing anti-collapse cover plates, vortex blades and filters near the inlet of the outflow flange, but due to structural complexity and multi-machine parallel structure, the structure efficiency is low, the stability is poor and the cost is high.

Method used

It adopts an integrated design of rocket propellant storage tank rear bottom structure, integrating vortex removal, anti-collapse and filtration functions. The structure includes the back bottom of the storage tank, tunnel joint, outflow flange, anti-collapse cover plate, filter mesh and vortex fin plate, and the components are connected into one through multiple connecting plates to form a compact and stable overall structure.

Benefits of technology

The compactness and stability of the outlet device are achieved, production costs are reduced, repairability and applicability are improved, and propellant delivery needs of multiple parallel engine liquid rockets are met.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention provides a rocket propellant storage tank rear bottom structure, a propellant storage tank and a liquid rocket. The rocket propellant storage tank rear bottom structure comprises a storage tank rear bottom, a tunnel connector, a plurality of outflow flanges, an anti-collapse cover plate, a filter screen and a plurality of vortex eliminating fin plates. The tunnel connector is located in the center of the storage box rear bottom, and the multiple outflow flanges are arranged on the storage box rear bottom and distributed around the tunnel connector in a circumferential mode. The outer contour of the anti-collapse cover plate is connected with the inner wall of the rear bottom of the storage box; the inner contour of the filter screen is connected with the tunnel joint, and the outer contour of the filter screen is connected with the inner contour of the anti-collapse cover plate; the plurality of vortex eliminating fin plates are circumferentially distributed around the tunnel joint, the vortex eliminating fin plates are arranged below the anti-sloughing cover plate and the filter screen, and the bottom edges of the vortex eliminating fin plates are connected with the inner molded surface of the rear bottom of the storage box in an attached mode. The outflow device is integrally designed, has vortex eliminating, collapse preventing and propellant filtering functions, is compact in system structure, reasonable in overall layout, good in stability and high in maintainability, and meets general design requirements.
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