Patent · US Expired

Supply pump

US7497656B2 · kind B2 · utility

0Cited by

4References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Sabine Burhenne · Bretten, DE
Johannes Deichmann · Lengede, DE
Bernd Jaeger · Fritzlar, DE
Karsten Meiser · Frielendorf, DE

Key dates

Filing date	Aug 29, 2002
Grant date	Mar 3, 2009
Priority date	—
Expiry date	Jan 24, 2025

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05B2250/503
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a supply pump embodied as a side channel pump, whereby several sections (14-16) forming the cross-section of a supply chamber (13) each comprise radii. The origins of the external radii are arranged on the front face of a pump housing facing the one rotor. The sections (14-16) comprise common tangents in the adjacent regions thereof. A particularly high efficiency for the supply pump can thus be guaranteed.

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