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1. WO2009139840 - MOTEUR THERMIQUE/POMPE À CHALEUR UTILISANT DES VENTILATEURS CENTRIFUGES

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

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CLAIMS

1) A device comprising a first substantially centrifugal compressor, a second substantially centrifugal compressor to be used as an expander to produce power, a first fluid connection, which communicates between the conventional output of said first substantially centrifugal compressor and the conventional output of said second substantially centrifugal compressor, a second fluid connection, which communicates between the conventional input of said first substantially centrifugal compressor and the conventional input of said second substantially centrifugal compressor, said fluid connections being such that normally during constant device speed when a substantial conventional flow is taking place in the first compressor a reverse flow is taking place in the second compressor thus making the second compressor's conventional flow output an actual input and making its conventional flow input an actual output,

a means located along said first fluid connection to add heat to the fluid while it is flowing in said first fluid connection, the heat coming from some system outside of the fluid,

a means located along said second fluid connection to remove heat from the fluid while it is flowing in said second fluid connection, the heat going to a system outside of the fluid,

said fluid being contained in said device, so that, except for minor leaks, none of the fluid escapes from the device during power production.

2) A device as in claim 1, being an external heat engine comprising a fluid container containing a compressible fluid, a means to rotate said fluid container around a rotation axis, a means to cause a part of said fluid to flow from a first position, called position one, in the container close to the rotation axis to a second position, called position two, in the container far from the rotation axis thus causing a compression of said part of said fluid,

near and far being relative to a scale having a minimum distance being the distance from the axis of a point in said container closest to the rotation axis and a maximum distance being the distance from the axis of a point in said container farthest from the rotation axis,

a means located far from the rotation axis and used to heat said part of said fluid by heat exchange with a heat sink external to the said fluid while said part of said fluid travels from position two to another position, called position three, also far from the axis, a means to extract energy as said part of said fluid moves from said position three, far from the axis, to a position, called position four, close to the rotation axis, with accompanying expansion of said part of said fluid, a means located near to the rotation axis and used to remove heat from said part of said fluid by heat exchange with another heat sink external to the said fluid while said part of said fluid travels from position four, near to the rotation axis, to position five also near to the rotation axis.

3) A device as in claim 1, being an external heat engine wherein said first substantially centrifugal compressor is such that said first compressor's blades and said first compressor's blade casing both rotate at substantially the same rate.

4) A device as in claim 1, being an external heat engine wherein said first substantially centrifugal compressor is such that at least some of said first compressor's rotating blades are firmly attached to said first compressor's blade casing.

5) A device as in claim 1, being an external heat engine wherein the working fluid of said flow is heavier than air, as for example Argon and

Krypton, thus making compression using centrifugal force easier than for air.

6) A device comprising a first substantially centrifugal compressor, a second substantially centrifugal compressor to be used as an expander to produce power, a first fluid connection, which communicates between the conventional output of said first substantially centrifugal compressor and the conventional output of said second substantially centrifugal compressor, a second fluid connection, which communicates between the conventional input of said first substantially centrifugal compressor and the conventional input of said second substantially centrifugal compressor, said fluid connections being such that normally during constant device speed when a substantial conventional flow is taking place in the first compressor a reverse flow is taking place in the second compressor thus making the second compressor's conventional flow output an actual input and making its conventional flow input an actual output,

a means located along said first fluid connection to remove heat from the fluid while it is flowing in said first fluid connection, the heat going to some system outside of the fluid,

a means located along said second fluid connection to add heat to the fluid while it is flowing in said second fluid connection, the heat coming from a system outside of the fluid, said fluid being contained in said device, so that, except for minor leaks, none of the fluid escapes from the device during device operation.

7) A device as in claim 6, being a heat pump comprising a fluid container containing a compressible fluid, 5 a means to rotate said fluid container around a rotation axis, a means to cause a part of said fluid to flow from a first position, called position one, in said container close to the rotation axis to a second position, called position two, in said container far from the rotation axis thus causing a compression of said part of said fluid, 0 near and far being relative to a scale having a minimum distance being the distance from the axis of a point in said container closest to the rotation axis and a maximum distance being the distance from the axis of a point in said container farthest from the rotation axis,

a means located far from the rotation axis and used to extract heat from said S part of said fluid by heat exchange with an external sink while said part of said fluid travels from position two to another position, called position three, also far from the rotation axis, a means to extract energy as said part of said fluid moves from said position three, far from the axis, to a position, called position four, close to the rotation 0 axis, with accompanying expansion of said part of said fluid, a means located near to the rotation axis and used to add heat to said part of said fluid by heat exchange with another external heat sink while said part of said fluid travels from position four, near to the rotation axis, to position five also near to the rotation axis.

5 8) A device as in claim 6, being a heat pump wherein said first substantially centrifugal compressor is such that said first compressor's blades and its blade casing both rotate at substantially the same rate.

9) A device as in claim 6, being a heat pump wherein said first substantially centrifugal compressor is such that at least some of said first compressor's rotating blades are firmly attached to said first compressor's blade casing.

S 10) A device as in claim 6, being a heat pump wherein the working fluid of said flow is heavier than air, as for example Argon and Krypton, thus making it easier to compress said fluid using centrifugal force.

H)A pump comprising a set of blades capable of being rotated around an axis and pushing a fluid, 0 those blades being within a casing that rotates around said axis at substantially the same rotation rate as that of the blades and such that while the blades are rotating during normal pump operation the velocity vector of each point within said blades intersects die casing.

S 12) A pump as in claim 11 comprising a set of blades capable of being rotated around an axis and pushing a fluid, a casing that rotates around said axis at substantially the same rotation rate as that of the blades and to which the blades are attached, the blades in the set being inside the said casing in the sense that a respective sub volume within each blade, 0 each said respective sub volume comprising at least 90% of the respective blade volume, is such that a plane can be swept through the respective said sub volume and at plane position during the sweep the plane intersects the said casing along a closed path surrounding the area of intersection with the respective sub volume.