Kvaerner Eureka As

Torgeir Skarstad

The invention relates to a vertical submersible pump assembly comprising a centrifugal pump assembly which comprises a centrifugal pump with a rotor and a pump casing, and a drive motor connected with the pump rotor by a drive shaft. A drain chamber surrounds the drive shaft and is sealed off in the direction of the pump rotor and the drive motor by the aid of respective shaft seals. The invention is characterized by the fact that the centrifugal pump has a dual inlet, that the pump casing forms the bottom of the drain chamber and contains the seals against the pump rotor, and that the drain chamber is shaped with a pocket extending down into the upper casing inlet.

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Spikkestad, Norway

Torgeir Skarstad