Rotor for a pump, produced with a first elastic material
First Claim
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1. A rotor for a pump comprising:
- the rotor including at least one blade having a pressure side, the rotor being able to be actuated to rotate about an axis of rotation in order to convey a fluid in the axial or radial direction, the at least one blade being able to be deformed reversibly elastically in the radial direction between a first radially compressed state and a second radially expanded state which the at least one blade adopts without the effect of external forces, and the at least one blade having at least one third state, the at least one third state being provided in which, in pumping operation under fluid loading, the at least one blade is deformed from the first radially compressed state to radially beyond the second radially expanded state, wherein the at least one blade is configured such that, during standstill, the at least one blade returns from the at least one third state reversibly elastically into the second radially expanded state, wherein the pressure side of the at least one blade is concave about an axis parallel to a chord length of the at least one blade in the second radially expanded state, and wherein the pressure side of the at least one blade is more concave in the second radially expanded state than in the at least one third state.
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Abstract
The invention relates to a rotor for a pump, having at least one blade, the rotor being able to be actuated to rotate about an axis of rotation in order to convey a fluid in the axial or radial direction, the rotor being able to be deformed reversibly elastically in the radial direction between a first, radially compressed state and a second, radially expanded state which the rotor adopts without the effect of external forces, and a third state of the rotor being provided in which, in pumping operation under fluid loading, the rotor is deformed from the first state to beyond the second state.
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Citations
25 Claims
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1. A rotor for a pump comprising:
- the rotor including at least one blade having a pressure side, the rotor being able to be actuated to rotate about an axis of rotation in order to convey a fluid in the axial or radial direction, the at least one blade being able to be deformed reversibly elastically in the radial direction between a first radially compressed state and a second radially expanded state which the at least one blade adopts without the effect of external forces, and the at least one blade having at least one third state, the at least one third state being provided in which, in pumping operation under fluid loading, the at least one blade is deformed from the first radially compressed state to radially beyond the second radially expanded state, wherein the at least one blade is configured such that, during standstill, the at least one blade returns from the at least one third state reversibly elastically into the second radially expanded state, wherein the pressure side of the at least one blade is concave about an axis parallel to a chord length of the at least one blade in the second radially expanded state, and wherein the pressure side of the at least one blade is more concave in the second radially expanded state than in the at least one third state.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A rotor for a pump, the rotor comprising:
- at least one blade, the at least one blade having a pressure side, the rotor being able to be actuated to rotate about an axis of rotation in order to convey a fluid in the axial or radial direction, the at least one blade having a first radially compressed state and a second radially expanded state and the at least one blade in an operating state having an entry angle of the blade (β
) and an exit angle of the blade (α
), the exit angle of the blade (α
) deviating from the entry angle of the blade (β
), wherein the pressure side of the at least one blade is concave about an axis parallel to a chord length of the at least one blade in the second radially expanded state and wherein the pressure side of the at least one blade is more concave in the second expanded radially state than in a third state. - View Dependent Claims (22, 23, 24, 25)
- at least one blade, the at least one blade having a pressure side, the rotor being able to be actuated to rotate about an axis of rotation in order to convey a fluid in the axial or radial direction, the at least one blade having a first radially compressed state and a second radially expanded state and the at least one blade in an operating state having an entry angle of the blade (β
Specification