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. 19, 2014
Filed:
Dec. 16, 2010
Brian W. Schwandt, Fort Atkinson, WI (US);
Barry M. Verdegan, Stoughton, WI (US);
Howard E. Tews, Beloit, WI (US);
Roger L. Zoch, McFarland, WI (US);
Shiming Feng, Fitchburg, WI (US);
Patricia E. Heckel, Stoughton, WI (US);
Brian W. Schwandt, Fort Atkinson, WI (US);
Scott P. Heckel, Stoughton, WI (US);
Barry M. Verdegan, Stoughton, WI (US);
Howard E. Tews, Beloit, WI (US);
Roger L. Zoch, McFarland, WI (US);
Shiming Feng, Fitchburg, WI (US);
Cummins Filtration IP Inc., Minneapolis, MN (US);
Abstract
A closed crankcase ventilation system for an internal combustion engine includes a return duct with a variably controlled air-oil coalescer. In a turbocharger version, cleaned separated air is provided to the turbocharger inlet, and the coalescer is variably controlled according to a given condition of the turbocharger and/or the engine and/or the coalescer.