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:
Mar. 13, 2007
Filed:
Apr. 01, 2004
Applicants:
Andrej Astachow, Regensburg, DE;
Grit Krüger, Regensburg, DE;
Inventors:
Andrej Astachow, Regensburg, DE;
Grit Krüger, Regensburg, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05B 1/30 (2006.01); F02M 51/00 (2006.01); B05B 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
The fuel injection valve, for an internal combustion motor, has a valve body with injection openings () at its point. A valve needle has an axial movement within the valve body, with a conical needle point to give a selective blocking and release of the fuel flow through the injection openings. The point of the valve needle has recessed grooves matching each of the injection openings. The width of each groove matches the diameter of an injection opening, with a stepped contour and a curved cross section.