ENERGY CONVERSION SYSTEM WITH DUPLEX RADIAL FLOW TURBINE

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ENERGY CONVERSION SYSTEM WITH DUPLEX RADIAL FLOW TURBINE ( energy-conversion-system-with-duplex-radial-flow-turbine )

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11 102;rotatingtheshaftinresponsetocausingthemotive?uid to?oW betWeentheWave chamberandtheradial?oW turbine in the ?rst direction and causing the motive ?uid to ?oW betWeen the Wave chamber and the radial ?oW turbine in the second direction, as at 104; pivoting each vane in a ?rst plurality of vanes in a third direction in response to causing the motive ?uid to ?oW betWeen the Wave chamber and the radial?oW turbineinthe?rstdirection,asat106;andpivoting each vane in the ?rst plurality of vanes in a fourth direction thatisoppositetothethirddirectioninresponsetocausingthe motive ?uid to ?oW betWeen the Wave chamber and the radial ?oW turbineintheseconddirection,asat108. Although the present disclosure has described embodi ments relating to speci?c turbomachinery, it is understood that the apparatuses, systems and methods described herein couldappliedtootherenvironments.Forexample,according to other exemplary embodiments, instead of, or in addition to Waveenergysources,otherenergysourcesmay becon?gured to be used With embodiments of the radial ?oW turbines described above. For another example, according to other exemplary embodiments, instead of, or in addition to a gen erator, embodiments of the radial ?oW turbines described above may be used as drivers for other mechanical devices thatrequireshaftpoWerinputsuchascompressorsorpumps. In an exemplary embodiment, an embodiment of the radial ?oW turbine described above may be positioned above a generator operably coupled thereto, and may include an arrangement of ducts such that the interconnection to the Wavechamberisattheouterradialextentoftheturbine,With the ambient air connection being a shared passage axially centered at the top of the turbine. In several exemplary embodiments,theshaftdrivenbyanembodimentoftheradial ?oW turbine described above may extend horizontally. In severalexemplaryembodiments,varioushoriZontalarrange ments of the embodiments of the radial ?oW turbines and generators described above may be implemented in various installations. 20 25 30 12 passage during the upstroke and alloW ?uid to ?oW through the ?rst radial ?oW passage during the doWn stroke;and second vanes compliantly mounted at least partially in the second radial ?oW passage, the second vanes being biasedtoWardaclosedpositionandcon?guredtopivot to an open position When impinged by a ?uid ?oWing aWay from the turbine Wheel such that the second vanes block the second radial ?oW passage during the doWn stroke and alloW ?uid to ?oW through the second radial ?oW passageduringtheupstroke. 2.A methodforrotatingashaft,comprising: pivoting?rstvanesfroma?rstpositiontoasecondposition toopena?rstradial?oW passage,the?rstvanesbeing compliantlymountedinthe?rstradial?oW passage; draWing a motive ?uid through the ?rst radial passage in a ?rst radial direction, past a turbine Wheel coupled to the shaft, and into a Wave chamber; pivotingthe?rstvanesfromthesecondpositiontothe?rst positiontoclosethe?rstradial?oW passage; pivoting second vanes from a ?rst position to a second positiontoopenasecondradial?oW passage,thesecond vanes being compliantly mounted in the second radial ?oW passage; and draWingthemotive?uidto?oW outoftheWavechamber, past the turbine Wheel, and through the second radial ?oW passageinasecondradialdirection. 3. The method of claim 2, further comprising biasing the ?rst and second vanes toWard the ?rst position. 4. The method of claim 3 Wherein biasing the ?rst and second vanes comprises using a structure disposed at least partially in a loW-modulus material. 5. The method of claim 3, Wherein: pivoting the ?rst vanes to the second position comprises pivoting the ?rstvanes When the second vanes are inthe ?rstposition;and pivotingthesecondvanestothesecondpositioncomprises pivoting the second vanes When the ?rstvanes are inthe ?rstposition. 6. The method of claim 5, Wherein pivoting the ?rst and secondvanesdoesnotrequireforcebeyondWhatisprovided by aminimum ?oW rateofthemotive ?uid. 7.An energyconversionsystem,comprising: a Wave chamber; a turbine Wheel coupled to a shaft and ?uidly coupled With the Wave chamber; a ?rst radial ?oW passage ?uidly coupled With the Wave chamber and the turbine Wheel; and ?rstvanes disposedatleastpartiallyinthe?rstradial?oW passage, each of the ?rst vanes being compliantly mountedandpivotalbetWeen?rstandsecondpositions, the?rstvanesbeingcon?guredtoalloWamotive?uidto ?oW ina?rstradialdirectionthroughthe?rstradial?oW passage When the ?rst vanes are in the ?rst position, and the?rstvanesbeingcon?guredtosubstantiallyprevent the motive ?uid from ?oWing through the ?rst radial ?oW passage in a second radial direction When the ?rst vanesareinthesecondposition,Whereineachofthe?rst vanes is substantially aerofoil shaped and includes a head and a tail extending from the head. 8. The energy conversion system of claim 7, Wherein each of the ?rst vanes further comprises a loW-modulus material disposedatleastinthehead. 9. The energy conversion system of claim 8, Wherein each ofthe?rstvanesfurthercomprisesastructureatleastpartially The foregoing has outlined features of several embodi mentssothatthoseskilledintheartmaybetterunderstandthe 40 detailed description that folloWs. Those skilled in the art shouldappreciatethattheymay readilyusethepresentdis closure as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments intro duced herein. Those skilled in the art should also realiZe that such equivalent constructions do not depart from the spirit and scopeofthepresentdisclosure,andthattheymay make various changes, substitutions and alterations herein Without departingfromthespiritandscopeofthepresentdisclosure. What isclaimedis: 1.An energyconversionsystem,comprising: a Wave chamber con?gured to house an oscillating Wave column,theoscillatingWavecolumnhavinganupstroke during Which the oscillating Wave column increases in height and a doWnstroke during Which the oscillating Wave column decreases inheight; a turbine Wheel having impulse turbine blades and com municating With the Wave chamber; ?rst and second radial ?oW passages extending radially fromtheturbineWheel; 45 50 55 ?rstvanescompliantlymountedatleastpartiallyinthe?rst radial?oW passage,the?rstvanesbeingbiasedtoWarda closedpositionandcon?guredtopivottoanopenposi 65 tionWhenimpingedbya?uid?oWingtoWardtheturbine Wheel suchthatthe?rstvanesblockthe?rstradial?oW US 8,286,425B2

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