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:
May. 16, 2017
Filed:
Jan. 30, 2015
Cummins Filtration Ip, Inc., Columbus, IN (US);
Yashpal Subedi, Madison, WI (US);
Brian W. Schwandt, Fort Atkinson, WI (US);
Scott W. Schwartz, Cottage Grove, WI (US);
CUMMINS FILTRATION IP, INC., Columbus, IN (US);
Abstract
A system for providing air to an internal combustion engine is described. The system includes a crankcase ventilation unit that separates oil from the unrefined blowby gas and discharges refined blowby gas. A conduit delivers the refined blowby gas to an air cleaner housing. The air cleaner housing includes a first chamber that receives intake air through a first port, a second chamber that receives intake air from the first chamber and refined blowby gas from the conduit through a second port, and a third chamber that receives a mixture of intake air and refined blowby gas from the second chamber and discharges the mixture through a third port. A primary filter element filters the intake air as it passes from the first chamber to the second chamber. A secondary filter element filters the mixture as it passes from the second chamber to the third chamber.