Method and apparatus for extracting heat and mechanical energy f

Refrigeration – Air compressor – cooler and expander type

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62467R, 62499, 165 86, F25D 900

Patent

active

044493797

ABSTRACT:
The disclosure provides an apparatus for extracting heat and/or mechanical energy from a pressured gas wherein the pressured gas is applied to the radially outer ends of rotating cylinder elements defining logitudinally extending fluid pressure chambers having one end thereof remote from the axis of rotation and the other end proximate to the axis of rotation. A free piston is mounted in each of the fluid pressure chambers and is reciprocable therein solely under the influence of the gas pressure and centrifugal force. Valving elements are provided at the outer end of the cylinder elements which are operable by the movement of the free piston toward such outer end to open the pressured gas inlet valve. A second valving element is provided near the inner end of each fluid pressure chamber to open ports causing the exhaust of the expanded, cooled gas from the chamber. The fluid pressure chambers accommodating such free pistons may be cylindrical, longitudinally curved, spirally shaped, or of a spiral-helical configuration. The free pistons comprise ball-shaped or ellipsoid-shaped elements capable of traversing the longitudinally curved fluid pressure chambers and are coated with an organic plastic having lubricating and sealing properties.

REFERENCES:
patent: 1323785 (1929-12-01), Nichol
patent: 1511985 (1924-10-01), Spencer
patent: 2174584 (1939-10-01), Imus
patent: 2175162 (1939-10-01), Waterfill
patent: 2716971 (1955-09-01), Sykes
patent: 2730874 (1956-01-01), Schelp
patent: 3052106 (1962-09-01), Sampietro et al.
patent: 3648670 (1972-03-01), Siddons
patent: 3896632 (1975-07-01), Huntley
patent: 4022032 (1977-05-01), Nott
patent: 4197715 (1980-04-01), Fawcett et al.

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