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:
Aug. 15, 2017
Filed:
Apr. 08, 2014
Hydac Fluidtechnik Gmbh, Sulzbach/Saar, DE;
Martin Grill, St. Wendel, DE;
Peter Bruck, Althornbach, DE;
HYDAC FLUIDTECHNIK GMBH, Sulzbach/Saar, DE;
Abstract
A proportional pressure-regulating valve () for actuating a first fluid connection (f) from a working connection (A) to a tank connection (T) and a second fluid connection (f) from a supply connection (P) to the working connection (A), includes a regulating piston () guided movably in a valve housing (). The regulating piston opens the first fluid connection (f) and closes the second fluid connection (f) when in a first position, and closes the first fluid connection (f) and opens the second fluid connection (f) when a second position. The regulating piston () can be displaced from a first position into a third position when the first fluid connection (f) is open by the total differential pressure produced when fluid flows through. When the regulating piston () is in the third position, the first fluid connection (f) is opened with an enlarged opening cross section compared to the first position, and the second fluid connection (f) remains closed.