Patent ID: 9482232
Filing Date: 2016-11-01
CPC Classification: F01D,F04B,F04D

Claim Text:
1. A pump section with a centre line in the axial longitudinal direction, wherein the pump section comprises: at least two pump steps, the pump steps having a centre line and each pump step comprising a motor and one or more pump stages, wherein the pump section comprises an outer casing enclosing one or more inner casings, the outer casing forming a confined and sealed enclosure round the pump section and having a larger diameter than the inner casings, the inner casings forming a confined and sealed enclosure round the at least two pump steps, wherein the centre line of the pump section is displaced relative to the centre line of the pump steps, thereby forming an annulus between the outer casing and the inner casing, wherein the annulus is sealed to prevent fluids from penetrating into the annulus, and wherein the inner casings comprise at least one distance piece, on a radial outside surface of the inner casings, that displaces the centre line of the pump steps relative to the centre line of the pump section.