Device for transmitting rotational motions without contact
AssigneeMahle International GmbH
InventorsRolf Mueller, Thomas Riemay, Peter Wieske
Life of this patent
Estimating the term…
Abstract
A device for transmitting rotational motions without contact may include an inner rotor with at least one inner-rotor magnet and an outer rotor with at least one outer-rotor magnet. The inner rotor and the outer rotor are magnetically coupled to one another and rotatable along a rotation direction about a common axis of rotation. The at least one inner-rotor magnet and/or the at least one outer-rotor magnet may have a magnetization that is at least one of diametric, radial, and lateral. The at least one inner-rotor magnet may have a different type of magnetization than the at least one outer-rotor magnet.
Claims20
A device for transmitting rotational motions without contact, comprising:
- an inner rotor including at least one inner-rotor magnet;
- an outer rotor including at least one outer-rotor magnet and magnetically coupled to the inner rotor,
- the inner rotor and the outer rotor rotatable along a direction of rotation about a common axis of rotation,
- the at least one inner-rotor magnet having at least one of a diametric magnetization, a radial magnetization, and a lateral magnetization;
- the at least one inner-rotor magnet and the at least one outer-rotor magnet having different types of magnetization from one another;
- wherein at least one of the at least one inner-rotor magnet includes at least two inner-rotor magnets arranged along the direction of rotation on the inner rotor and the at least one outer-rotor magnet includes at least two outer-rotor magnets arranged along the direction of rotation on the outer rotor;
- wherein the at least one of the at least two inner-rotor magnets and the at least two outer-rotor magnets have a respective direction of magnetization that differ from one another;
- and
- wherein the at least two inner-rotor magnets each have a diametric magnetization, and the at least two outer-rotor magnets each have a lateral magnetization.
A drive system, comprising:
- a device for transmitting rotational motions without contact, the device including:
- an inner rotor including at least one inner-rotor magnet having at least one of a diametric magnetization, a radial magnetization, and a lateral magnetization;
- an outer rotor including at least one outer-rotor magnet and magnetically coupled to the inner rotor, the at least one outer-rotor magnet having a different type of magnetization then the at least one inner-rotor magnet
- the inner rotor and the outer rotor rotatable along a direction of rotation about a common axis of rotation;
- a drive shaft connected in a torque-proof manner to one of the inner rotor and the outer rotor;
- an output shaft connected in a torque-proof manner to the other of the inner rotor and the outer rotor;
- a sealing body having a pot shape including a pot base and a pot collar, the pot collar arranged radially between the inner rotor and the outer rotor, and the pot collar extending axially away from the pot base into a radially outwardly projecting flange section;
- wherein at least one of the at least one inner-rotor magnet includes at least two inner-rotor magnets arranged circumferentially along the direction of rotation on the inner rotor and the at least one outer-rotor magnet includes at least two outer-rotor magnets arranged circumferentially along the direction of rotation on the outer rotor;
- wherein the at least one of the at least two inner-rotor magnets and the at least two outer-rotor magnets have a respective direction of magnetization that differs from one another;
- and
- wherein the at least two inner-rotor magnets each have a diametric magnetization, and the at least two outer-rotor magnets each have a lateral magnetization;
- a flow machine drive-connected to the output shaft of the device;
- and
- wherein the sealing body is coupled to a housing of the flow machine the flange section.
Dependencies are inferred from the claim text.