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:
Jun. 10, 2003
Filed:
Mar. 18, 2002
Nestor Rodriguez-Amaya, Stuttgart, DE;
Roger Potschin, Brackenheim, DE;
Ulrich Projahn, Leonberg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to an arrangement for injecting fuel, which is at high pressure, into an internal combustion engine. An injector ( ) encloses a pressure chamber ( ), from which a high-pressure line ( ) discharges into a control chamber ( ) of a nozzle needle ( ). Also contained in the injector ( ) are two control valves ( ), which on the outlet side communicate with regions ( ) of a lesser pressure level. One of the control valves ( ) that form the injection course ( ) contains a pressure compensation system ( ), by which the injection pressure course ( ) can be varied by varying the stroke length ( ) of the nozzle needle ( ).