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AssigneeNETZSCH Pumpen & Systeme GmbH
InventorsPhilipp Nübl, Dominik Sinseder, Michael Mittermaier, Daniel Bürger, Stefan Weigl
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Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.
An eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, characterized in that the power train consists essentially of a one-piece rotational body, which is substantially molded from a material selected from a group comprising plastic, metal and combinations of them which provide it with elasticity to rotate.
An eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, characterized in that the power train consists essentially of a one-piece rotational body, which is substantially molded in one piece from a powder which provides it with elasticity to rotate.
A power train for transmitting torque between first and second components which carry out rotational movements about different axes, wherein the power train adjusts differences of motion sequences of the first and second components through its internal elasticity provided by being substantially molded from malleable material in an essentially single piece which has multiple weakening recesses in its outer surface which allow it to twist while it rotates.
Dependencies are inferred from the claim text.