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:
Jan. 04, 2005
Filed:
Mar. 12, 2002
Nestor Rodriguez-amaya, Stuttgart, DE;
Achim Brenk, Kaempfelbach-Bilfingen, DE;
Wolfgang Klenk, Loechgau, DE;
Uwe Gordon, Kemmern, DE;
Manfred Mack, Altheim, DE;
Hubert Greif, Markgroeningen, DE;
Nestor Rodriguez-Amaya, Stuttgart, DE;
Achim Brenk, Kaempfelbach-Bilfingen, DE;
Wolfgang Klenk, Loechgau, DE;
Uwe Gordon, Kemmern, DE;
Manfred Mack, Altheim, DE;
Hubert Greif, Markgroeningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a 3/2-way valve for controlling the injection of fuel in a common rail injection system of an internal combustion engine, having a first switching position, in which an injection nozzle is in communication with a fuel return, and having a second switching position, in which the injection nozzle is in communication with a high-pressure fuel reservoir. To improve the function and quality of the injection, the 3/2-way valve includes a force-balanced control piston, and the control edge of the control piston is pressure-equalized by means of a blind bore.