Patent ID: 11867202
Assignee: MARLIN AS
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pump in which an electric motor which is connected to a rotor provided with at least one pump vane is integrated into a pump casing,
the electric motor being a ring motor surrounding at least a portion of a fluid flow path through the pump,
a stator being arranged internally in an intermediate section of the pump casing and surrounding the rotor,
the rotor, which is supported in the pump casing, being cylinder-shaped and forming an intermediate portion of said fluid flow path,
the at least one pump vane being attached internally in the rotor,
dynamic seals being arranged at end portions of the rotor and defining cavities in the pump casing and the electric motor in a fluid-sealing manner,
said cavities being filled with a motor fluid in the form of oil and being in fluid communication with a motor-fluid-pressure regulator, wherein
the motor-fluid-pressure regulator is connected to a control system which is arranged to monitor the composition of the motor fluid in the cavities of the ring motor, including the occurrence of water in the motor fluid.