Aeronautics and astronautics – Aircraft power plants – High altitude
Reexamination Certificate
2006-07-05
2010-10-05
Collins, Timothy D (Department: 3644)
Aeronautics and astronautics
Aircraft power plants
High altitude
C244S05300R, C244S13500B
Reexamination Certificate
active
07806365
ABSTRACT:
Hydrogen powered air vehicles that in some embodiments can fly with very long endurance (10 or more days) at altitudes over 60,000 ft carrying payloads of up to 2,000 pounds. Embodiments may include features such as large wingspan relative to fuselage and an all composite or partial composite structure for light weight and strength. The aircraft of the invention use one or more internal combustion engines adapted for hydrogen combustion, each engine driving propellers. The hydrogen fuel is stored on board in containers, located within the fuselage, as a cryogenic liquid, and is vaporized in a heat exchanger before delivery to the internal combustion engine.
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Atreya Shailesh
Bigbee-Hansen William
Davidson Ronald W.
Miller Gerald D.
Moore Wesley
Collins Timothy D
Kreiner Michael
The Boeing Company
Tung & Associates
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