Thermodynamic flotation engine

Details Thermodynamic flotation engine Thermodynamic flotation engine

1980-06-02

1982-04-20

Ostrager, Allen M.

Power plants

Motor having a buoyant working member

With means to vary buoyancy of working member

60531, F03B 1312

Patent

active

043252168

ABSTRACT:
A thermodynamic flotation engine designed to operate using waste heat contained in hot fluids such as water is provided which is of simple construction and allows for continuous operation with no other outside energy source being required. The engine includes an upright fluid tank adapted to receive the hot fluid, with a continuous loop member having a series of discrete bladders mounted thereon. The loop member is supported for continuous movement of successive portions thereof into and out of the fluid filled tank from bottom to top, as by means of a pair of spaced apart pulley members. The respective bladders hold a material such as acetone having a vaporization temperature below the temperature of the hot fluid within the tank; as the bladders successively pass into the tank, the material vaporizes to inflate the bladders, and the buoyancy effect thereby created serves to shift the loop member upwardly; the process is continuous inasmuch as the material in each bladder is reconverted to the liquid form after the bladder leaves the upper end of the fluid tank, with consequent deflation of the bladders. A power takeoff associated with the shiftable bladder-carrying loop member allows the engine to be used as a motive unit.

REFERENCES:
patent: 3410086 (1968-11-01), Bodkin
patent: 4233813 (1980-11-01), Simmons

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