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. 04, 2014
Filed:
Nov. 04, 2009
Markus Bill, Heusweiler, DE;
Peter Bruck, Althombach, DE;
Gerd Schneider, Dillingen, DE;
Hydac Fluidtechnik GmbH, Sulzback/Saar, DE;
Abstract
A proportional pressure control valve includes a valve box () having a pump (P), user (A) and reservoir (T) connections. Control piston () is guided in a longitudinally displaceably inside the valve box () for optionally connecting the pump connection (P) to the user connection (A) and the user connection (A) to the reservoir connection (T). A fluid-carrying connection is established between the pump connection (P) and a pilot chamber () of a pilot valve (). The pilot valve () is controlled by a magnet system, especially a proportional magnet system (). The proportional pressure control valve, for the fluid-carrying connection to the pilot chamber (), has a bore () extending axially inside the wall of the valve box () and from a radial bore () of the housing () forming the pump connection (P).