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:
Mar. 19, 2013
Filed:
Apr. 15, 2004
Thorsten Hillesheim, Reichshof-Schemmerhausen, DE;
Peter Bruck, Althornbach, DE;
Thorsten Hillesheim, Reichshof-Schemmerhausen, DE;
Peter Bruck, Althornbach, DE;
Hydac Fluidtechnik GmbH, Sulzbach/Saar, DE;
Abstract
A valve, particularly a proportional pressure control valve for controlling fluid flows, includes a valve housing () having at least three fluid-conducting connections in the form of a pump connection (P), a use connection (A) and of a tank (T) connection. To connect the pump connection (T) to the use connection (A) and the use connection (A) to the tank connection (T), a control piston () can be guided in a longitudinally displaceable manner inside the valve housing (). This control piston is provided for establishing a fluid-conducting connection between at least one of the connections (P) and a pilot chamber () of a pilot valve () having a connecting channel (). A valve part () of the pilot valve () is guided in the pilot chamber () in a longitudinally displaceable manner. The connecting channel () has a throttle in the direction of the pilot chamber () of the pilot valve () with its valve part. A guiding device () oriented toward the pilot chamber () and provided for guiding the fluid flow is provided next to the throttle to divert the fluid flow, conveyed inside the connecting channel () and flowing toward the valve part (), at least partially away from this valve part.