Aircraft/spacecraft fluid cooling system and aircraft/spacecraft fluid cooling method

摘要

An aircraft/spacecraft fluid cooling system and an aircraft/spacecraft fluid cooling method in which a fluid in a pipe installed in aircraft or spacecraft can be cooled efficiently so that the amount of fluid required for cooling the fluid can be reduced. A fluid cooling system includes a feed line that feeds a fluid from a storage tank to a pump, and a cooling section that expands a propellant having traveled through the pump, feeds the propellant to the outer periphery of the feed line so as to cool the propellant in the feed line, and discharges the expanded propellant outside.

主权项

1. An aircraft/spacecraft fluid cooling system comprising:
a first feed pipe that feeds a fluid that is a cryogenic fluid from a storage tank to a pump, the cryogenic fluid from the storage tank being used for combustion in a combustor; a second feed pipe that feeds the fluid from the pump to the combustor; a cooling section that expands the fluid having traveled through the pump, feeds the fluid to an outer periphery of at least one of the first feed pipe and the second feed pipe so as to cool the fluid in at least one of the first feed pipe and the second feed pipe, and discharges the fluid that was expanded outside; a cooling section inlet pipe that feeds the fluid from the pump to the cooling section; and an on-off valve that is provided at the cooling section inlet pipe, the on-off valve being configured to be open in a state in which the fluid is allowed to travel to the cooling section, the on-off valve being configured to be closed in a state in which the fluid is not allowed to travel to the cooling section, wherein the on-off valve is configured to be open before ignition of the combustor, wherein the cooling section inlet pipe feeds the fluid to the cooling section before ignition of the combustor, and wherein the cooling section discharges the fluid that was expanded outside before ignition of the combustor without supplying the fluid to the combustor.