Controlling buoyancy of an underwater vehicle using a dual-internal-reservoir configuration to enhance efficiency of inflating and deflating an external chamber
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United States of America Patent
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Jan 24, 2017
Grant Date -
Sep 8, 2016
app pub date -
Feb 8, 2016
filing date -
Feb 11, 2014
priority date (Note) -
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Abstract
An underwater vehicle may include a buoyancy control system configured to use a dual-internal-reservoir configuration to enhance efficiency of changing buoyancy of the underwater vehicle. The buoyancy control system may utilize an incompressible fluid (e.g., oil or water) that is transferred between a first internal reservoir and an external chamber to affect buoyancy of the underwater vehicle. In exemplary implementations, a compressible fluid (e.g., air) may be used to inflate or deflate a second internal reservoir. The second internal reservoir may be disposed within the buoyancy control system so that it can act on the first internal reservoir by applying a compressive force or a tensive force on the first internal reservoir, depending on the pressure differences between the two reservoirs.
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