Refrigeration – Air compressor – cooler and expander type – Motor-type expander
Patent
1976-03-10
1977-04-05
King, Lloyd L.
Refrigeration
Air compressor, cooler and expander type
Motor-type expander
418 13, F25D 900, F01C 130, F01C 1100, F03C 300
Patent
active
040154416
ABSTRACT:
Disclosed is a first stator defining an internal cavity and a second stator within the cavity of the first stator. A cylindrical rotor is disposed within the cavity. The rotor defines a first chamber within the cavity between it and the inner walls of the first stator and a second chamber within the cavity between the rotor and the outer walls of the second stator. The rotor carries vanes radially slidable in slots spaced circumferentially about the rotor. The inner and outer walls of the first and second stators respectively are spaced one from the other such that the linear distance therebetween along any extended radius of the rotor is substantially equal to the radial length of vanes whereby the outer and inner edges of the vanes are in continuous engagement along the inner and outer walls of the respective first and second stators upon rotation of the rotor. An inlet and an outlet are provided each of the first and second chambers. Air flowing into the second chamber is compressed upon rotation of the rotor and flows to a heat exchanger. Cool compressed air flows from the heat exchanger to the first chamber where it is expanded and further cooled for delivery to a cooling duct.
REFERENCES:
patent: 1940384 (1933-12-01), Zoller
patent: 2915017 (1959-12-01), Whitney
patent: 3686893 (1972-08-01), Edwards
patent: 3884664 (1975-05-01), Edwards
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