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:
Apr. 01, 2025
Filed:
Aug. 09, 2022
Applicant:
Cummins Inc., Columbus, IN (US);
Inventors:
Govindarajan Kothandaraman, Columbus, IN (US);
Lyle E. Kocher, Whiteland, IN (US);
David M. Barnes, Columbus, IN (US);
Scott Robert Bardakjy, Columbus, IN (US);
J. Steven Kolhouse, Columbus, IN (US);
Assignee:
Cummins Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 13/00 (2006.01); B01D 35/00 (2006.01); F01M 1/02 (2006.01); F01M 1/10 (2006.01); F01M 1/16 (2006.01); F01M 5/00 (2006.01); F01P 3/06 (2006.01); F01P 3/00 (2006.01);
U.S. Cl.
CPC ...
F01L 13/0005 (2013.01); B01D 35/005 (2013.01); F01M 1/02 (2013.01); F01M 1/10 (2013.01); F01M 1/16 (2013.01); F01M 5/002 (2013.01); F01P 3/06 (2013.01); F01L 2013/001 (2013.01); F01M 2001/0215 (2013.01); F01M 2001/0261 (2013.01); F01P 2003/006 (2013.01);
Abstract
Systems, devices, and methods are disclosed that during cylinder deactivation, including skipfire, at low engines speeds and low engine loads maintain adequate oil pressure of valvetrain components or hardware required for CDA and/or skipfire operation.