Patent · US Expired

Multi-stage side-channel fuel pump for a motor vehicle

US6179579A · kind A · utility

11Cited by

4References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Klaus Dobler · Gerlingen, DE
Michael Huebel · Gerlingen, DE
Willi Strohl · Beilstein, DE

Key dates

Filing date	Oct 29, 1999
Grant date	Jan 30, 2001
Priority date	—
Expiry date	Oct 29, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D13/0646
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A multi-stage side-channel pump (1) in particular for fuel for a motor vehicle, having at least first blade chambers (16) of a precursor stage (7) and second blade chambers (17) of a main stage (10). The side-channel pump (1) has an electric motor (19) for driving an impeller (13). The electric motor (19) has a rotor (22) and a stator (24). The first blade chambers (16) of the precursor stage (7) and the second blade chambers 17 of the main stage (10) are integrated with the impeller (13). The impeller (13) can also form the rotor (22), making it possible to produce an extremely shallow side-channel pump (1). This pump is employed preferably for fuel delivery in gasoline injection to an internal combustion engine.

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