Patent · US Active

Centrifugal pump having a radial impeller

US11221019B2 · kind B2 · utility

0Cited by

6References

17Claims

0Family size

Assignee

KSB SE & Co. KGaA · DE

Inventor

Bjoern Will · Bischofswerda, DE

Key dates

Filing date	Dec 5, 2017
Grant date	Jan 11, 2022
Priority date	—
Expiry date	Dec 5, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/167
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A centrifugal pump includes a radial impeller surrounded by a housing. The housing has a channel associated with a front side space between a cover of the impeller and the casing. Flow is led through the channel from a pressure region of the pump to a radial gap at a suction region of the pump. The flow in the channel reduces angular momentum and results in an increase in pressure in the front side space which acts of in the cover side of the impeller to offset axial force from a rear side of the impeller.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.