Patent ID: 11872568
Assignee: ALFA LAVAL CORPORATE AB
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A centrifugal separator comprising:
a rotor arrangement; and
a drive arrangement,
wherein the rotor arrangement comprises a spindle, a separator bowl enclosing a separation space, and a user of electric energy,
wherein the centrifugal separator comprises an inlet for a fluid mixture, and an outlet for a separated fluid,
wherein the inlet is fluidly connected with the separation space, and the outlet is fluidly connected with the separation space,
wherein the drive arrangement is connected to, or forms part of, the spindle and is configured to rotate the rotor arrangement about a rotation axis,
wherein the centrifugal separator comprises a rotary transformer, the rotary transformer comprising a transformer stator and a transformer rotor,
wherein the transformer stator and the transformer rotor are arranged adjacent to each other with an airgap therebetween,
wherein the transformer rotor comprises a coil and is rotatable together with the rotor arrangement, wherein the coil is electrically connected to the user of electric energy arranged in the rotor arrangement for providing the user of electric energy with an electric current,
wherein:
the centrifugal separator comprises an actuator arranged in the rotor arrangement, the actuator at least part of the user of electric energy; or
the centrifugal separator comprises a sensor arranged in the rotor arrangement, the sensor forming at least part of the user of electric energy; or
the centrifugal separator comprises a control unit arranged in the rotor arrangement, the control unit forming at least part of the user of electric energy, and

wherein the transformer rotor is arranged on the separator bowl to rotate with the separator bowl, and wherein the transformer stator is arranged adjacent to the separator bowl.