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:
Oct. 26, 2004
Filed:
Jul. 15, 2003
Wolfgang Scheibe, Ludwigsburg-Poppenweiler, DE;
Horst Ressel, Winnenden, DE;
L'Orange GmbH, Stuttgart, DE;
Abstract
An injection valve for injecting fuel into the combustion chamber of an internal combustion engine has an injector needle guided inside the housing in such a way that it can be displaced longitudinally with a shaft in order to open and close the injection cross-sections. The injector needle is actuated by the fuel pressure which act upon the injector needle and by a closing spring acting in the closing direction of the injection needle. The closing spring is pre-compressed between abutments on the injector needle and the housing and is situated on the perimeter of the injector needle in the area between the injector needle guide and the valve seat. One advantage of the arrangement is the compact construction of the injection valve and the low dead volume of the control chamber on the reverse side of the injector needle.