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. 17, 2015
Filed:
May. 25, 2010
Sebastian Jansen, Ludwigsberg, DE;
Sebastian Jansen, Ludwigsberg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A valve system is described for high-pressure fuel injection, including a pilot valve which has a pilot valve needle, a pilot valve seat and a pressure chamber, an electromagnetic actuator for actuating the pilot valve needle, and a main valve which has at least one spray hole, a closing element, a support piston and a pressure compensating chamber, the closing element having a receiving chamber for the purpose of accommodating the support piston and the pressure compensating chamber being provided in the receiving chamber of the closing element, the pilot valve seat being provided on the closing element, and the pilot valve establishing a connection between the pressure chamber and the pressure compensating chamber for the purpose of reducing an opening force for the main valve.