Fluid pump with a rotor
AssigneeEcp Entwicklungsgesellschaft Mbh
InventorMario Scheckel
Life of this patent
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Abstract
The invention relates to a fluid pump, in particular to a liquid pump having a rotor with at last one rotor blade for conveying the fluid, the rotor being variable with respect to its diameter between a first, compressed state and a second expanded state. In order to produce a simple compressibility and expandability of the rotor of the pump, it is provided according to the invention that at least one rotor blade is deformable between a first state which it assumes in the compressed state of the rotor and a second state which it assumes in the expanded state of the rotor by means of a fluid counterpressure during a rotation of the rotor during pump operation.
Claims39
A fluid pump, comprising a rotor with at least one rotor blade for conveying fluid, the rotor being variable with respect to its diameter between a compressed state, a first expanded state, and a second expanded state, wherein the at least one rotor blade deforms as the rotor transitions between the compressed state, the first expanded state, and the second expanded state, and wherein the second expanded state is achieved by means of a fluid counterpressure resulting from conveyance of fluid during rotation of the rotor during conveying pump operation, wherein the at least one rotor blade has a leading side and a trailing side with respect to the direction of rotation during conveying pump operation, and wherein the rotor is configured such that when the rotor is rotating during conveying pump operation, the fluid counterpressure is produced counter to the direction of rotation against the leading side of the at least one rotor blade and the at least one rotor blade is resultingly deformed so as to widen the diameter of the rotor.
A method for operating a fluid pump, comprising the step of starting rotation of a rotor in an operating direction, wherein the rotor is expanded by the fluid counterpressure, and wherein the fluid pump comprises the rotor with at least one rotor blade for conveying fluid, the rotor being variable with respect to its diameter between a compressed state, a first expanded state, and a second expanded state, wherein the at least one rotor blade deforms as the rotor transitions between the compressed state, the first expanded state, and the second expanded state, and wherein the second expanded state is achieved by means of a fluid counterpressure resulting from conveyance of fluid during rotation of the rotor-during conveying pump operation, wherein the at least one rotor blade has a leading side and a trailing side with respect to the direction of rotation during conveying pump operation, and wherein the rotor is configured such that when the rotor is rotating during conveying pump operation, the fluid counterpressure is produced counter to the direction of rotation against the leading side of the at least one rotor blade and the at least one rotor blade is resultingly deformed so as to widen the diameter of the rotor.
A method of making a fluid pump, comprising the step of making a rotor blade, wherein the fluid pump comprises a rotor with at least one rotor blade for conveying fluid, the rotor being variable with respect to its diameter between a compressed state, a first expanded state, and a second expanded state, wherein the at least one rotor blade deforms as the rotor transitions between the compressed state, the first expanded state, and the second expanded state, and wherein the second expanded state is achieved by means of a fluid counterpressure resulting from conveyance of fluid during rotation of the rotor during conveying pump operation, wherein the at least one rotor blade has a leading side and a trailing side with respect to the direction of rotation during conveying pump operation, and wherein the rotor is configured such that when the rotor is rotating during conveying pump operation, the fluid counterpressure is produced counter to the direction of rotation against the leading side of the at least one rotor blade and the at least one rotor blade is resultingly deformed so as to widen the diameter of the rotor.
Dependencies are inferred from the claim text.