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

Claim 19:
20. 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,
the ring surrounding the impeller such that an axial length of the ring is approximately equal to an extension length of the blade of the impeller.