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System for multiple burns from a rocket motor

Patent ·
OSTI ID:2541639
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A system for multiple burns from a solid fuel rocket motor may extinguish rocket fuel after the rocket has been ignited. The motor may be extinguished via rapid decompression of the combustion chamber. The fuel may then be reignited by a suitable igniter, and the process of extinguishing and reigniting may be repeated, enabling multi-burn maneuvers. A decompressive extinguishing plug nozzle may extinguish solid rocket fuel after the rocket has been ignited and/or keep a rocket in a disarmed (zero thrust) state until the rocket is to be armed. The nozzle may include a plug that mostly impedes the opening of the nozzle and an outer cowl that is movable to rapidly decompress the combustion chamber. This rapid decompression extinguishes the solid rocket fuel. In some aspects, the fuel can be reignited and extinguished multiple times.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
89233218CNA000001
Assignee:
Triad National Security, LLC (Los Alamos, NM)
Patent Number(s):
11,859,579
Application Number:
16/941,642
OSTI ID:
2541639
Country of Publication:
United States
Language:
English

References (1)

CVD Catalyzed PEM Fuel Cell and Electrolyzer Electrodes journal July 2018

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