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:
Dec. 04, 2007
Filed:
Aug. 28, 2006
Johann Bayer, Strullendorf, DE;
Wolfgang Koschwitz, Litzendorf, DE;
Johann Bayer, Strullendorf, DE;
Wolfgang Koschwitz, Litzendorf, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A fuel injector for fuel injection systems of internal combustion engines is described. The fuel injector includes an electromagnetic actuating element having a magnetic coil, a core, and a valve jacket as an outer magnetic circuit component and a movable valve closing body which interacts with a valve seat surface assigned to a valve seat body. The core and a connecting tube are fixedly joined in an inner opening of a thin-walled valve sleeve and the valve jacket at the outer circumference of the valve sleeve by pressing in or on. The fixed compression joint of two of these metallic components of the fuel injector is characterized in that at least one of the components has a surface-roughening structure in its compression area, it being possible to create the surface-roughening structure using a laser and metal oxides being deposited on the structure.