Hot air balloon and methods and devices for augmenting buoyancy,

Details Hot air balloon and methods and devices for augmenting buoyancy, Hot air balloon and methods and devices for augmenting buoyancy,

1987-08-24

1989-09-12

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft, lighter-than-air

Balloons

244 97, B64B 140, B64B 162

Patent

active

048652660

ABSTRACT:
The invention improve hot air balloons of the type using heavy duty propane burners producing large unconfined flames by manually controlled intermittent short combustion periods,--the type used for the sustained flight and transport of one or more passengers. The improvements comprise increased lift and rate of lift, fuel economy, safety of components and passengers, envelope life, and elimination of scorching and near-scorching of the envelope and skirt, reduced cumulative deterioration of the envelope; these improvements are accomplished by the elimination of the hiterto unrecognized large loss of radiant energy from the flame which has passed through the transparent gas and translucent portions of the envelope (thin, light colored) and being lost without having heated the interior gases,--by means of opaque shields of metal and/or fabric suspended between the flame and the envelope to intercept the radiant energy, convert it to heat energy and transfer it to the contiguous gases.
Solar energy is utilized in the same maner by increasing the translucency of the ceiling and intercepting the solar energy that passes through it by an opaque diaphragm suspended beneath the ceiling. This subceiling has two other simultaneous functions: it intercepts the radiant energy from the flame and converts it to heat and it collects a pocket of hot gas to agument buoyancy. Annular diaphragms suspended at successively lower levels collect annular pockets of hot gas to increase the average gas temperature and augment lift.

REFERENCES:
patent: 3565368 (1971-02-01), Byron
patent: 4084771 (1978-04-01), Creuzet

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