Patent · US Active

Liquid heating pump for conveying and heating liquid in a water-bearing domestic appliance

US11015616B2 · kind B2 · utility

0Cited by

2References

30Claims

0Family size

Assignee

BSH Hausgeräte GmbH · DE

Inventors

Igor Hoffmann · Dillingen/Saar, DE
Stephan Lutz · Sontheim, DE
Hans-Holger Pertermann · Dresden, DE
Markus Wecker · Gundremmingen, DE

Key dates

Filing date	Apr 25, 2017
Grant date	May 25, 2021
Priority date	—
Expiry date	Feb 13, 2038

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06F39/083
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A liquid heating pump includes an impeller chamber having an impeller, which can be rotatably driven, and a diffusor chamber and/or pressure chamber arranged axially downstream in the flow direction and having a stationary diffusor. A heating device is associated with the diffusor and/or pressure chamber. The diffusor has a main body, in particular in the shape of a circular cylinder. The main body has a front wall on which a guide blade portion is arranged which axially protrudes in a direction of the impeller into a liquid ejection region of the impeller arranged around an outer periphery of the impeller and which extends away from the liquid ejection region outwardly toward an axial outer casing of the main body, which axial outer casing is arranged radially further outwardly than the liquid ejection region of the impeller.

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