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:
Nov. 07, 2017
Filed:
Jul. 25, 2013
Hydac Filtertechnik Gmbh, Sulzbach/Saar, DE;
Norbert Sann, Riegelsberg, DE;
Viktor Josef Lauer, Nalbach, DE;
Stefan Hennes, Hangard, DE;
Michael Sakraschinsky, St. Ingbert, DE;
Alexander Wohlers, Saarburg, DE;
Paul Seibold, Grainau, DE;
HYDAC FILTERTECHNIK GMBH, Sulzbach/Saar, DE;
Abstract
A device for the suction filtration of fluids, such as urea solutions for exhaust gas after-treatment systems, has a tank () storing the fluid, and a filter element () arranged in the tank and provided with a filter medium () separating the tank contents from a clean-side inner filter cavity (). The filter cavity extends from the bottom () of the tank () to a filling level height () and corresponds to a part of the filling volume of the tank (). On the filter cavity (), a suction connection () discharges the cleaned fluid by a suction pressure corresponding to a system operating pressure. The filter element () is provided with a filter medium (), which is air-impermeable if suction pressures are within the range of a low system operating pressure.