Patent ID: 9453511
Filing Date: 2016-09-27
CPC Classification: F04D

Claim Text:
1. A regenerative pump comprising a plurality of pump units, each of the plurality of pump units comprising a housing comprising a fluid passage channel; and at least one impeller provided inside the casing or housing for pumping the fluid through the fluid passage channel, wherein the housing comprises at least one inlet channel and at least one outlet channel in communication with the fluid passage channel, wherein the plurality of pump units comprises a feed pump unit, a discharge pump unit, and one or more intermediate pump units, and wherein at least the outlet channel of the feed pump unit, both the inlet channel and the outlet channel of each intermediate pump unit, and at least the inlet channel of the discharge pump unit each comprise an axial portion at least partially parallel to an axis of rotation of the at least one impeller, the axial portions being at least partially aligned and sharing a common axis substantially parallel to the axis of rotation of the at least one impeller.