Wide-temperature-range strong precooling system, aircraft and air intake precooling control method
Patent Information
- Application Number
- CN202510593010.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2045-05-08
AI Technical Summary
[0004]现有技术中，对冲压进气冷却的宽速域适应性差
[0028] Compared with the prior art, the present invention has a variety of different cooling methods, namely, in the first cooling state, the air is cooled by using a pulsed heat pipe; in the second cooling state, the air is cooled by spraying cooling water into the airflow; and in the third cooling state, the heat is dissipated by circulating liquid metal. The three cooling states share the same capillary bundle and use the same heat exchange structure to solve the problem that the prior art cannot take into account both the low-temperature high-efficiency phase change heat transfer and the high-temperature liquid metal strong convection cooling. The present invention also has the following effects: (1) Seamless coverage of wide temperature range: the heat transfer in the full speed range of 300~900K has a high heat transfer density; at the same time, the pre-cooling technologies of the two modes, such as pulsed heat pipe and liquid metal active control, share the same heat exchange system, there is no design redundancy, and the size and weight can be greatly reduced. (2) High efficiency heat-mass synergy: by using engine bleed air and local materials, the evaporation temperature of the pulsed heat pipe can be dynamically adjusted and precisely controlled, and water vaporization can be injected into the mainstream for auxiliary cooling during the conversion. There is no material redundancy, and the overall energy efficiency is improved.