The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 2010
Filed:
Sep. 28, 2005
Applicant:
Eberhard Geiβel, Künzell, DE;
Inventor:
Eberhard Geiβel, Künzell, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 37/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a fuel pump in the form of a side-channel pump for a motor vehicle two partially annular ducts () concentrically enclosing one another are connected to one another via a connecting duct (). Connections () of the connecting duct () to the partially annular ducts () are laid so that at a rated speed of the fuel pump the same pressure prevails in each of them. If the speed falls below the rated speed, fuel passes from the radially outer, partially annular duct () into the radially inner, partially annular duct (). A sufficient delivery capacity through the radially inner, partially annular duct () is thereby ensured.