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:
Sep. 27, 2016
Filed:
Jan. 07, 2012
Frank Schulz, Blieskastel-Bierbach, DE;
Peter Bruck, Althornbach, DE;
Frank Schulz, Blieskastel-Bierbach, DE;
Peter Bruck, Althornbach, DE;
HYDAC FLUIDTECHNIK GMBH, Sulzbach/Saar, DE;
Abstract
A proportional pressure-regulating valve () includes a valve housing () having pump, utility and tank connections (P, A, T). A regulating piston () is longitudinally displaceable within the valve housing () to selectively connect the pump connection (P) to the utility connection (A) and the utility connection (A) to the tank connection (T) and is controllable by a magnetic coil device (). The regulating piston () has a surface ratio () such that pressure on the utility connection (A) generates a counter force (F) against the magnetic force (F) of the magnetic coil device (), moving the regulating piston () back and causing reduction of pressure medium from the pump connection (P) to the utility connection (A) until the pressure acting on the utility connection (A) corresponds to the magnetic force (F) of the current signal applied to the magnetic coil device ().