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US 10,900,495 B2Granted
Multistage pump
AssigneeGrundfos Holding A/S
InventorSteen Mikkelsen
Life of this patent
Estimating the term…
Abstract
The invention relates to a multistage pump (1), including a pump body (4), at a lower end of which a base element (2) is arranged, and at an upper end of which a head element (3) is arranged. At least the base element (2) is made from sheet steel and has an inlet port (5) and an outlet port (16). The inlet port (5) and the outlet port (16) are mechanically connected to each other by a pipe (6) running through the base element (2).
Claims20
A multistage pump, comprising:
- a base element;
- a head element;
- a pump body with a lower end and an upper end, the base element being arranged at the lower end and the head element being arranged at the upper end, wherein at least the base element is made from sheet steel, the pump body comprising a pump body longitudinal axis;
- and
- an elongate carrier running through the base element, the elongate carrier being a different component from the base element made from sheet steel, wherein the elongate carrier is a one-piece pipe which is interrupted by a wall, wherein an inlet port and an outlet port of the multistage pump are formed by the one-piece pipe, the one-piece pipe comprising a one-piece pipe longitudinal axis, the one-piece pipe longitudinal axis being non-parallel to the pump body longitudinal axis.
2 more elements
A multistage pump, comprising:
- a multistage pump structure comprising:
- abase element comprising an inner base element surface, the inner base element surface defining at least a portion of a base element interior space;
- a head element;
- a pump body with a lower end and an upper end, the base element being arranged at the lower end and the head element being arranged at the upper end, wherein at least the base element is made from sheet steel, the pump body comprising a pump body longitudinal axis;
- and
- a single, one-piece elongate carrier structure comprising a single, one-piece elongate carrier longitudinal axis, at least a portion of the elongate carrier structure extending through the base element interior space in a direction transverse to the pump body longitudinal axis, the single, one-piece elongate carrier structure defining an inlet of the multistage pump structure for receiving a flow of fluid and the single, one-piece elongate carrier structure defining an outlet of the multistage pump structure for discharging the flow of fluid.
3 more elements
Dependencies are inferred from the claim text.