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Geothermal Turbine 1982

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Geothermal Turbine 1982 ( geothermal-turbine-1982 )

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4,336,039 78 2. A turbine as in claim 1 in which the nozzles are formed by airfoil vanes extending between the opposed walls and cooperating contoured surfaces on the op posed wall surfaces to form a convergent-divergent nozzle. 3.A geothermal?uidturbinerotorincluding: two rotor wheels, one for steam and one for water; each wheel having a row of supersonic nozzles on its periphery; and a separator in the rotor for diverting water into the water wheel and steam to the steam wheel. 'v4.A turbinerotorasinclaim3inwhichtheseparator includes: a conical element on the axis of the rotor; and a cooperating surrounding wall element forming an annular passage increasing in radius in a down stream direction and serving as a centrifuge to divert water radially outwardly into the water rotor. ‘ 5.A turbinerotorasinclaim4inwhichthewater wheel has opposed wall elements between which the water ?ows radially outward to the nozzles and an extension of said surrounding wall element is one of the opposed walls. 6.A turbinerotorasinclaim3inwhich: each rotor wheel has opposed ‘wall elements de?ning between them a ?ow path for ?uids to the nozzles located at the periphery of these walls. ‘7.A turbinerotorasinclaim6inwhich,‘inatleast one wheel, the nozzles are formed by nozzle vanes extending between said wall'elements and the opposed wall surfaces at these nozzle vanes are contoured to form, with the vanes, convergent-divergent nozzles arranged to discharge ?uid therein in a substantially -tangential direction to the periphery of the wheel. 8. A geothermal ?uid turbine rotor for use with a ?uid including both water and steam, the turbine rotor including: a water wheel having opposed walls and a row of reaction, supersonic nozzles at the periphery thereof, these nozzles discharging ?uid therefrom inadirectionsubstantiallytangentialtotheperiph ery; ' a conical element upstream of the water wheel; 5 a cooperating outer wall surrounding the conical element and defining a divergent passage to form a centrifuge, an extension of said outer wall forming one wall of the water wheel; the other wall of the water wheel extending radially inward at a point downstream of the conical ele ment such that water in the ?uid is guided by said wall into the water wheel, 9.A turbinerotorasinclaim8inwhich: a concave wall surface, downstream of the conical element, and a cooperating wall surface surround ing the concave wall surface form a passage for diverting steam around said other wall of the water wheel and away from the water wheel. 10. A turbine rotor as in claim 9 including a steam wheel having opposed walls and a row of reaction su personic nozzles between them at the periphery, and this wheel receives steam from said steam passage. 11. A turbine rotor as in claim 8 including: a steam wheel having opposed walls and a row of reactionsupersonicnozzlesattheperiphery,these nozzlesdischarging?uidsubstantiallytangentialto the wheel periphery; and the centrifuge being located as to separate the water from the steam in the ?uid and divert the steam into the steam wheel. 12.A turbinerotorasinclaim11inwhichtheother wall of the water wheel forms the outer wall of a steam passage to divert steam from the centrifuge away from the water wheel and into the steam wheel, the inner wall of the steam passage being a concave wall surface downstream of and concentric to the conical element. 13.A turbinerotorasinclaim8inwhichthespace between the walls of the water rotor, inwardly of the row ofnozzles,isfreeofobstructiontothe?uidflowing outwardly to the nozzles. 14..A turbinerotorasinclaim11inwhichthespace between the walls of at least one of the wheels is unob structed, radially inward to the nozzles to allow radial ?ow ofthe?uidtherein. 15.A turbinerotorasinclaim11inwhichthespace between the ‘opposite walls of at least one of the wheels hasguidevanesthereincurvedtoassurearadial?ow of ?uid in the wheel without signi?cant tangential acceler 20 .25 45 ation. 55 60 65 * * * \k *

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Geothermal Turbine 1982

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