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. 10, 2015
Filed:
Oct. 14, 2010
Philipp Hilzendegen, Weiskirchen, DE;
Peter Bruck, Althornbach, DE;
Hermann Albert, Lebach, DE;
Hydac Fluidtechnik GmbH, Sulzbach/Saar, DE;
Abstract
A valve assembly for regulating the pressure of a pressure medium () of a pressure medium pump () to at least one first consumer () includes a pilot-controlled pressure control valve () with a main piston () acted on by the pressure medium () and a pilot piston (). A pressure chamber () between a piston back side () of the main piston () and the pilot piston () can be relieved. A relief valve () is connected in a fluid-conducting manner to the pressure chamber (), opens when pressure at the load sensor (LS) represents an out-of-operation mode of the consumer (), and recirculates pressure medium () having a low pressure to a pressure medium reservoir () or to the pressure medium pump (). The relief valve () closes when the pressure at the load sensor (LS) represents an in-operation mode of the consumer ().