Fuel tank with separating membrane
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United States of America Patent
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Jun 9, 2015
Grant Date -
May 2, 2013
app pub date -
Oct 25, 2012
filing date -
Oct 27, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tank especially suitable for use as a fuel or oxidizer tank in spacecraft is divided into two tank spaces by a membrane. A liquid is stored on one side of the membrane and a pressure gas is stored on the other side of the membrane. The pressure gas is to drive the liquid out of the tank. The membrane is made of a polymer material and is held by a spring ring in a recess on the outer wall of the tank. The spring ring has a substantially C-shaped cross-section to exert elastic spring holding forces on the membrane in the recess.
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