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:
Apr. 01, 2003
Filed:
Dec. 26, 2001
Uwe Gordon, Markgroeningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A fuel injection valve for internal combustion engines, having a valve body in which a valve member is disposed, which valve member changes into a spring plate, which is disposed in a spring chamber that receives the closing spring provided with a valve stop face on an end face. A control piston is provided defining a hydraulic control chamber, which control piston protrudes into the spring chamber, whose end face toward the combustion chamber forms a stroke stop face. As a function of pressure in the control chamber, the control piston can be moved counter to the closing force of a restoring spring from a first stroke position, remote from the valve member, toward the valve member into a second stroke position, where the control piston limits the maximum opening stroke (h) of the valve member to a partial stroke (h ).