Condensation reduction around cryogenic service connection
AssigneeHamilton Sundstrand Space Systems International, Inc.
InventorJorge E. Hidalgo
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Abstract
The system has a cryogenic tank and a connection for supplying a first fluid to the cryogenic tank. The fluid connection is provided with at least one valve which may be selectively opened to receive the fluid and one valve for venting. A vacuum chamber housing is positioned on an opposed side of the valve from the tank. A vacuum source is operated to remove leaking fluid from the vacuum housing while the first fluid is being supplied through the valve to the tank in order to minimize heat leaks to the transfer tube. A method is also disclosed.
Claims15
A system comprising:
- a cryogenic tank and a connection for supplying a first fluid to said cryogenic tank;
- and
- said connection provided with at least one valve which may be selectively opened to receive the first fluid, and a vacuum chamber housing positioned on an opposed side of the at least one valve from said tank with said vacuum housing being connected to a vacuum source operable to remove any fluid from said vacuum housing while the first fluid is being supplied through said at least one valve to said tank.
A method of supplying fluid to a cryogenic tank comprising the steps of:
- attaching a connection to a cryogenic tank;
- opening a valve and supplying cryogenic fluid to said tank;
- providing a vacuum chamber housing positioned on an opposed side of a valve from said tank, and pulling a vacuum within said vacuum housing to remove fluid from said vacuum housing while cryogenic fluid is being supplied through said valve to said tank.
Dependencies are inferred from the claim text.