Patent · US Expired

Feeding aggregate for fuel

US6527507B2 · kind B2 · utility

2Cited by

3References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Mathias Rollwage · Ditzingen, DE
Albert Gerhard · Tamm, DE
Jochen Rose · Hemmingen, DE
Erich Eiler · Sersheim, DE

Key dates

Filing date	May 25, 2001
Grant date	Mar 4, 2003
Priority date	—
Expiry date	May 25, 2021

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/188
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A feeding aggregate for fuel has a feed pump which is formed as a side channel pump and has a housing, a pump chamber formed in the housing, and an impeller arranged in the pump chamber, an electric motor provided for driving of the impeller and having a stator and a rotor, with the rotor formed of one piece with the impeller, the feed pump having at least one pump stage, a rim of vanes having vane chambers therebetween and provided on at least one end side of the impeller, a partial ring-shaped side passage formed in the housing opposite to the rim of vanes and having an inlet and an outlet spaced from one another in a peripheral direction of the impeller and open into the side passage, the at least one pump stage of the feed pump having the rim of vanes only on one end side of the impeller and having the side passage in the housing opposite to the rim of vanes, the inlet and the outlet of the side passage being arranged at a same end side of the impeller, and the impeller at an end side which is opposite to the vanes being provided with recesses which are at least approximately mirror-symmetrical to the vane chambers and are connected through openings in the impeller with the van…

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