Power plants – Reaction motor – Method of operation
Patent
1986-10-14
1989-06-27
Stout, Donald E.
Power plants
Reaction motor
Method of operation
60206, 60260, 60267, F02K 964
Patent
active
048417238
ABSTRACT:
A propulsion system and method having means for cooling the combustor liner and throat liner of a rocket casing by endothermic pyrolysis of a hydrocarbon fuel in the fuel passageway which is adjacent to and surrounding the combustor liner and the throat liner. Means is provided for high heat flux to the combustor liner and throat liner from combustion within the rocket casing whereby the temperature of the liners exceeds their thermal limits. Catalyst means are utilized for the endothermic pyrolysis. Hydrocarbon fuel is passed through the fuel passageway; heat is provided from the combustion of fuel in the combustion chamber to the fuel passageway by radiation through the combustor liner and the throat liner; and the hydrocarbon fuel is heated at a temperature sufficient to cause the endothermic pyrolysis of the hydrocarbon in the fuel passageway. By the propulsion system and method, heat is removed from the combustion chamber through the combustion liner and throat liner, and the temperature in the combustion chamber is reduced at the combustor liner and throat liner so that the thermal limit of the combustor liner and throat liner is not exceeded. The endothermic pyrolysis of the hydrocarbon fuel produces an improved fuel product which has a higher combustion rate, a higher combustion temperature and/or results in a fuel product having a lower molecular weight than the hydrocarbon fuel.
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Coffinberry George A.
Lau Monica M.
General Electric Company
Lawrence Derek P.
Stout Donald E.
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