Patent ID: 11879483
Assignee: SULZER MANAGEMENT AG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 18:
19. A multiphase pump for conveying a multiphase process fluid, comprising:
a pump housing;
a rotor arranged in the pump housing and configured to rotate about an axial direction, the rotor comprising a pump shaft and an impeller fixedly mounted on the pump shaft;
a stationary diffuser is arranged adjacent to and downstream of the impeller, the impeller comprising a blade with the blade having a radially outer tip, and the impeller comprising a ring surrounding the impeller and arranged at the radially outer tip of the blade, a passage is disposed between the ring and a stationary part configured to be stationary with respect to the pump housing, the passage extending in the axial direction from an entrance to a discharge; and
a swirl brake disposed at the passage, the swirl brake configured and arranged to brake a swirl of the process fluid passing through the passage,
an inner surface of the ring being parallel to the axial direction.