Injection System and Method for Injecting Helium and/or Hydrogen in Critical Aerodynamic Areas Around a Capsule in a Tube Transportation System
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United States of America Patent
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Issued Date -
May 19, 2022
app pub date -
Feb 7, 2022
filing date -
Feb 7, 2022
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Abstract
Disclosed within is an injection system for injecting and maintaining a gaseous composition (helium and air) within a tube (e.g., a tubular transportation system for transporting one or more passengers or one or more cargos via a capsule), where the tube is pumped to a pressure that is below atmospheric pressure until the tube is substantially evacuated and where the capsule has an outside skin layer having injection nozzles. A source of helium gas located on board the capsule releases the helium outside of the capsule via the nozzles to relieve pressure buildup in a stagnation point at the front of the capsule or to reduce effects of a choking flow around the capsule or to relieve the effects of a shockwave at the rear of the capsule.
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