Ballonet for a balloon

摘要

Methods and apparatuses are disclosed for altitude control of a high-altitude balloon. A bladder or ballonet is provided within an envelope of a balloon. The bladder is tubular-shaped, is inflatable, and is foldable for insertion into the balloon prior to performing a final seam on the balloon. To stabilize the bladder, the bladder may be attachable to one or more interior surfaces of the envelope with one or more ropes.

主权项

1. A variable buoyancy system comprising:
an envelope; and an inflatable bladder arranged inside of the envelope, wherein the inflatable bladder comprises:
(a) a cylindrical body comprising a top end and a bottom end;(b) a top exterior surface at the top end comprising a mounting point; and(c) a first rope affixed to the mounting point of the inflatable bladder, wherein the first rope extends from the mounting point and attaches an interior surface of the envelope, thereby attaching the top exterior surface of the inflatable bladder to the interior surface of the envelope.