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. 05, 2008
Filed:
Dec. 02, 2005
Torsten Hilpert, Erdmannhausen, DE;
Pius Trautmann, Stuttgart, DE;
Thomas Schleiden, Stuttgart, DE;
Andreas Beck, Ludwigsburg, DE;
Andreas Weber, Ludwigsburg, DE;
Torsten Hilpert, Erdmannhausen, DE;
Pius Trautmann, Stuttgart, DE;
Thomas Schleiden, Stuttgart, DE;
Andreas Beck, Ludwigsburg, DE;
Andreas Weber, Ludwigsburg, DE;
Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
Apparatus for separating oil from crankcase ventilation gases of an internal combustion engine having at least two oil separators in the form of cyclones connected in parallel and traversed by the crankcase ventilation gases. The apparatus is equipped with a control valve that divides the volumetric flow of the crankcase ventilation gases into at least two subflows, depending on the magnitude of the volumetric flow, and conducts the subflows to the at least two oil separators. A control piston releases or blocks access of the gases to additional cyclones depending on the dynamic pressure of the crankcase gas.