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. 13, 2013
Filed:
Nov. 05, 2008
Christian Courth, Frankfurt, DE;
Christoph Voss, Frankfurt, DE;
Harald Biller, Eschborn, DE;
Joachim Bohn, Hundsangen, DE;
Holger Kollmann, Mainhausen, DE;
José Garcia-quilon, Altenstadt/Oberau, DE;
Christian Courth, Frankfurt, DE;
Christoph Voss, Frankfurt, DE;
Harald Biller, Eschborn, DE;
Joachim Bohn, Hundsangen, DE;
Holger Kollmann, Mainhausen, DE;
José Garcia-Quilon, Altenstadt/Oberau, DE;
Abstract
A pressure regulating valve having a compression spring fixed in a valve housing for positioning a valve plunger connected to a magnetic armature in the position above a valve seat and not electromagnetically excited, in order to create a connection between at least two pressure medium channels opening into the valve housing, and having a further compression spring disposed coaxially to the first compression spring in the valve housing, having the characteristic that the first compression spring is designed as a control spring forming a stroke and force-specific spring drive by adjusting the spring rates of both compression springs to the force/distance curve of an electromagnet by varying the current in an exciter coil, wherein the further compression spring is designed as a variably adjustable spring acting opposite to the control spring.