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. 20, 2004
Filed:
Feb. 14, 2002
Helmut Rembold, Stuttgart, DE;
Walter Teegen, Waiblingen, DE;
Walter Lorch, Zaberfeld, DE;
Gerhard Wiltschek, Stuttgart, DE;
Klaus Geistefeldt, Schwaig, DE;
Juergen Haller, Sachsenheim, DE;
Uwe Mueller, Hemmingen, DE;
Harald Lang, Markgroeningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A pressure control valve serves to regulate the fuel pressure in a fuel system. The pressure control valve includes a valve housing, at least one inlet, at least one outlet, and at least one prestressed, electrically actuatable, and at least regionally ball-shaped valve member. The valve member cooperates with a valve seat structurally connected to the housing. To make it possible to achieve stable closed- and/or open-loop control properties of the pressure control valve, it is proposed that the valve seat widen conically toward the valve member, and the ball diameter of the valve member is selected such that with the valve closed, the valve member touches the valve seat in the vicinity of its farther end.