US 12,258,979 B2
Method of preventing damage to a pump
Age Hofstad, Mjoendalen (NO); Randhir Mohite, Drammen (NO); Sergio Walsh Goldvag, Dilling (NO); Pal Erik Tysvaer Soerensen, Drammen (NO); Tarje Olderheim, Billingstad (NO); Dag Elvebakken, Heggedal (NO); Bastiaen Van Der Rest, Gullaug (NO); Einar Marius Haaverstad, Slependen (NO); and Rune Pettersen, Slependen (NO)
Assigned to AKER SOLUTIONS AS, Lysaker (NO)
Filed by AKER SOLUTIONS AS, Lysaker (NO)
Filed on Jan. 2, 2024, as Appl. No. 18/401,844.
Application 18/401,844 is a division of application No. 18/030,504, previously published as PCT/NO2021/050209, filed on Oct. 8, 2021.
Claims priority of application No. 2016035 (GB), filed on Oct. 9, 2020; application No. 2016038 (GB), filed on Oct. 9, 2020; application No. 2016039 (GB), filed on Oct. 9, 2020; and application No. 2016040 (GB), filed on Oct. 9, 2020.
Prior Publication US 2024/0133392 A1, Apr. 25, 2024
Prior Publication US 2024/0229811 A9, Jul. 11, 2024
Int. Cl. F04D 7/02 (2006.01); F04D 1/06 (2006.01); F04D 13/08 (2006.01); F04D 27/00 (2006.01); F04D 27/02 (2006.01)
CPC F04D 7/02 (2013.01) [F04D 1/06 (2013.01); F04D 13/086 (2013.01); F04D 27/001 (2013.01); F04D 27/0223 (2013.01); F05B 2210/13 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multiphase pump comprising:
a housing comprising a flow inlet and a flow outlet which are fluidly connected to each other via a flow path;
a rotor arranged in the flow path of the housing, the rotor being configured to propel a fluid from the flow inlet to the flow outlet via the flow path, the rotor comprising a longitudinal axis which extends for a length of the rotor and a multiphase impeller arrangement;
at least one leak path which is configured to permit a reverse flow of the fluid from the flow outlet to the flow inlet; and
at least one channel which is arranged within the housing, the at least one channel being configured to direct a liquid from a liquid source to one of the at least one leak path in the multiphase pump.