Coupling between drive and blower head
AssigneeLoewenstein Medical Technology S.A.
InventorChristian-Georg Schregel
Life of this patent
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Abstract
A ventilator having a blower head comprising at least one fan wheel and a housing having blower nozzles, as well as a drive device. The blower head together with the drive device is configured to convey a patient gas and the blower head and the drive device are detachably coupled to one another via a coupling.
Claims12
A ventilator, wherein the ventilator comprises a blower head comprising at least one fan wheel connected to a fan shaft, a housing having blower nozzles, and a drive device having a motor shaft, the blower head and the drive device together being configured to convey a patient gas and being releasably couplable to one another via a coupling, the coupling comprising a first coupling element arranged on the fan shaft of the at least one fan wheel and a second coupling element that is complementary to the first coupling element arranged on the motor shaft of the drive device, the first and second coupling elements having a conical shape suitable for a force-fit connection in which the first and second coupling elements are pressed against each other such that force is transmitted from the motor shaft to the fan shaft.
A method for coupling a blower head of a ventilator that comprises at least one fan wheel and a housing having blower nozzles to a drive device of the ventilator, the blower head comprising at least one fan wheel connected to a fan shaft and the drive device being connected to a motor shaft, wherein the method comprises arranging a first coupling element on the fan shaft of the at least one fan wheel and arranging a second coupling element that is complementary to the first coupling element on the motor shaft of the drive device, the first and second coupling elements having a conical shape for a force-fit connection in which the first and second coupling elements are pressed against each other such that force is transmitted from the motor shaft to the fan shaft.
Dependencies are inferred from the claim text.