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:
Aug. 15, 2006
Filed:
Nov. 29, 2002
Roger Potschin, Brackenheim, DE;
Peter Grabandt, Remseck, DE;
Roger Potschin, Brackenheim, DE;
Peter Grabandt, Remseck, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a device for actuating a control piston or nozzle needle () via a control chamber (). The control chamber communicates via a control chamber line () with valve chambers () of a 3/2-way valve (). The valve body () of this valve is switchable by means of an actuator (). By means of a restoring spring (), the valve body () is acted upon such that a seat portion (), embodied in the housing () on the valve body (), is put into its valve seat (). The valve body () of the 3/2-way valve () has a seat portion () and a longitudinal slide portion (), as well as hydraulic faces (), facing one another, that make the state of pressure equilibrium of the valve body () possible. The valve body () is moved to different stroke lengths () by means of an actuator ().