一种基于液氧液甲烷的双组元喷注器及姿控发动机
By designing a liquid oxygen and liquid methane injector with a double-layer panel structure, utilizing liquid methane vaporization cooling and stepped panels, the problems of unstable flow and complex structure of liquid oxygen and liquid methane propellants during transportation were solved, enabling rapid engine start-up, stable operation, and improved reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING LANDSPACETECH CO LTD
- Filing Date
- 2025-11-24
- Publication Date
- 2026-07-17
AI Technical Summary
Liquid oxygen and liquid methane propellants are prone to absorbing ambient heat during transportation, leading to unstable flow rates. They also require specialized ignition systems, increasing engine structural complexity and weight, and affecting engine reliability and weight reduction.
Design a bi-component injector based on liquid oxygen and liquid methane. The injector disk adopts a double-layer panel structure. It utilizes the gas film cooling formed after the liquid methane vaporizes to isolate the liquid collection chamber from heat vaporization. The stepped panel structure avoids structural ablation caused by excessive heat load, thus achieving an integrated and compact design.
It achieves a stable supply of liquid oxygen and liquid methane propellants, rapid start-up and stable operation, avoids additional ignition structures, optimizes engine layout, and improves operational reliability and weight reduction.
Smart Images
Figure CN121497504B_ABST