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US 4,902,204 AGranted
Vertical submersible pump assembly
AssigneeKvaerner-Eureka A/S
Inventor.ANG.ge Hofstad
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AssigneeKvaerner-Eureka A/S
Inventor.ANG.ge Hofstad
Estimating the term…
The invention relates to a vertical submersible pump assembly, comprising a pump assembly casing which contains a hydraulic drive motor with a drive shaft. On the pump assembly casing a pump house is secured, and a pump rotor which is connected with the pump shaft and provided in the pump house, a transport conduit from the pump house, which transport conduit extends above the pump medium, and two drive medium conduits from the above said pump medium and down to the pump assembly casing. The vertical submersible pump assembly is characterized by the fact that the pump house is divided radially outside the pump rotor, the external ring shaped pump house portion being connected with the transport conduit. Each drive medium conduit comprises a releasable conduit means which when removed permits a unit compressing pump assembly casing with the drive motor, the pump rotor and the inner pump house portion to be pulled up.
A vertical submersible pump assembly, comprising a pump assembly casing which contains a hydraulic drive motor with a drive shaft, a pump housing which is secured on said pump assembly casing, a pump rotor positioned within the pump housing and connected with the drive shaft, a transport conduit extending upwardly from the pump housing, and two driving medium conduits which extend upwardly from the pump assembly casing, wherein the pump housing is radially divided along a first circumference outside the pump rotor into inner and outer pump housing portions, said pump housing including an external ring-shaped portion connected to the transport conduit, and each drive medium conduit, comprising a releasable conduit means, said releasable conduit means when removed permitting a unit comprising said pump assembly casing to be displaced upwardly together with the drive motor, the pump rotor and the inner pump housing portion.
Dependencies are inferred from the claim text.