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What isclaimedis: 13 14 compressorcavitiesWherebythesupercriticalWorking ?uidisselectivelyleakedintotherotorcavitytoreduce thetemperaturetherein. 12. The thermodynamic system of claim 11, Wherein the compressor has a high-pressure face facing an inlet of the compressorcavityandaloW-pressurefaceoppositethereto, thesystemfurthercomprisingapluralityofridgesextending fromtheloW-pressurefaceofthecompressorforpumpingthe supercritical Working ?uid as itpasses over the compressor Whereby a pressure differential betWeen the high-pressure face and the loW-pressure face is reduced such that thrust is balanced across the compressor. 13. The thermodynamic system of claim 12, Wherein the turbinehasapluralityofcutoutsthereinformanipulatingthe supercriticalWorking?uidasitpassestherethroughWhereby thrust is balanced across the turbine. 14. The thermodynamic system of claim 11, Wherein the bearings are selected from the group consisting of thrust, journal,gasfoil,bal,magneticandtiltbearings. 15. The thermodynamic system of claim 11, Wherein the seals are selected from the group consisting of dry lift off, brush, Windback, abradable, hole pattern and combinations thereof. 16.Thethermodynamic systemofclaim11,furthercom prisingapumpoperativelyconnectedtotherotorcavityfor selectivelyloWeringpressuretherein. 17. The thermodynamic system of claim 11, Wherein the supercriticalWorking?uidcomprisesatleastaportionofone selectedfromthegroupconsistingofaninorganiccompound, a noble gas, an ole?n, a fuel, a refrigerant, and combinations thereof. 18. The thermodynamic system of claim 11, Wherein the supercritical Working ?uid enters the compressor cavity at a pressure just above a critical pressure of the supercritical Working?uid. 19.Thethermodynamic systemofclaim11,furthercom prisinga?uidcircuitforcirculatingthesupercriticalWorking ?uidthroughthesystem. 20. The thermodynamic system of claim 19, Wherein the ?uidcircuitcomprisesatleastoneselectedfromthegroup consisting of a heater, a chiller, a gas booster, a drain, at least one valve, at least one ?uid measurer and combinations thereof. 21. A method of generating poWer from a supercritical Working?uid,comprising: providing a thermodynamic system, the system compris ing ahousing; aturbinepositionedinaturbinecavityofthehousing; a compressor positioned in a compressor cavity of the housing,thecompressorhavingahigh-pressureface facing an inlet of the compressor cavity and a loW pressure face on an opposite side thereof, the loW pressurefacehavingapluralityofridges;and an alternator positioned in a rotor cavity betWeen the turbineandcompressorcavities,thealternatorhaving a rotor shaft operatively connected to the turbine and compressor, the alternator supported in the housing bybearings; compressingasupercriticalWorking?uidbypassingthe Working ?uid across the compressor; generating a poWer output by passing the compressed supercritical Working ?uid across the turbine; and balancing thrust across the compressor by pumping the supercriticalWorking?uidWiththepluralityofridgesas the supercritical Working ?uid passes over the compres sor. 1.A thermodynamicsystemforgeneratingpowerfroma supercriticalWorking?uid,comprising: ahousing; aturbinepositionedinaturbinecavityofthehousing; a compressor positioned in a compressor cavity of the housing, the compressor having a high-pressure face facing an inlet of the compressor cavity and a loW pressure face on an opposite side thereof; and an alternator positioned in a rotor cavity betWeen the tur bine and compressor cavities, the alternator having a rotorshaftoperativelyconnectedtotheturbineandcom pressor,thealternatorsupportedinthehousingbybear ings; Whereinthecompressorhasapluralityofridgesextending from the loW-pressure face thereof for pumping the supercriticalWorking?uidasitpassesoverthecompres sor Whereby a pressure differential betWeen the high pressure face and the loW-pressure face isreduced such that thrust is balanced across the compressor. 2. The thermodynamic system of claim 1, Wherein the turbinehasapluralityofcutoutsthereinformanipulatingthe supercriticalWorking?uidasitpassestherethroughWhereby thrust is balanced across the turbine. 3.Thethermodynamicsystemofclaim1,furthercompris ing a plurality of seals positioned about the alternator for selectively isolating the rotor cavity from the turbine and compressorcavitiesWherebythesupercriticalWorking?uid is selectively leaked into the rotor cavity to reduce the tem peraturetherein. 4.Thethermodynamicsystemofclaim3,Whereintheseals areselectedfromthegroup consistingofdryliftof,brush, Windback,abradable,holepatternandcombinationsthereof. 5.Thethermodynamicsystemofclaim1,furthercompris inga?uidcircuitforcirculatingthesupercriticalWorking ?uid through the thermodynamic system. 20 25 30 35 6.Thethermodynamic systemofclaim5,Whereinthe?uid circuit comprises at least one selected from the group con sistingofaheater,achiller,agasbooster,adrain,atleastone valve,atleastone?uidmeasurerandcombinationsthereof. 40 7. The thermodynamic system of claim 1, Wherein the bearings are selected from the group consisting of thrust, journal,gasfoil,bal,magneticandtiltbearings. 8.Thethermodynamicsystemofclaim1,furthercompris ingapumpoperativelyconnectedtotherotorcavityfor45 selectivelyloweringpressuretherein. 9. The thermodynamic system of claim 1, Wherein the supercriticalWorking?uidcomprisesatleastaportionofone selectedfromthegroupconsistingofaninorganiccompound, a noble gas, an ole?n, a fuel, a refrigerant, and combinations thereof. 10. The thermodynamic system of claim 1, Wherein the supercritical Working ?uid passes over the compressor at a pressure just above a critical pressure of the supercritical Working?uid. 11.A thermodynamicsystemforgeneratingpoWerfroma supercriticalWorking?uid,comprising: ahousing; aturbinepositionedinaturbinecavityofthehousing; a compressor positioned in a compressor cavity of the housing; an alternator positioned in a rotor cavity betWeen the tur 50 55 60 bine and compressor, the alternator having a rotor shaft operativelyconnectedtotheturbineandcompressor,the alternatorsupportedinthehousingbybearings;and 65 apluralityofsealspositionedaboutthealternatorforselec tively isolating the rotor cavity from the turbine and US 8,397,506B1PDF Image | United States Patent Wright et a1. TURBO-ALTERNATOR-COMPRESSOR DESIGN FOR SUPERCRITICAL HIGH DENSITYWORKING FLUIDS
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United States Patent Wright et a1. TURBO-ALTERNATOR-COMPRESSOR DESIGN FOR SUPERCRITICAL HIGH DENSITYWORKING FLUIDSOriginal File Name Searched:
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