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:
Oct. 20, 2020
Filed:
Oct. 23, 2019
Applicant:
Cummins Inc., Columbus, IN (US);
Inventors:
Darren Yaoshun Ting, Columbus, IN (US);
David M. Barnes, Columbus, IN (US);
Assignee:
Cummins Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/14 (2006.01); F01L 1/24 (2006.01); F01L 1/053 (2006.01); F01L 1/18 (2006.01); F01L 1/26 (2006.01); F01L 13/00 (2006.01); F01L 13/06 (2006.01); F02D 13/02 (2006.01); F02D 13/04 (2006.01); F02D 13/06 (2006.01);
U.S. Cl.
CPC ...
F01L 1/2405 (2013.01); F01L 1/053 (2013.01); F01L 1/143 (2013.01); F01L 1/185 (2013.01); F01L 1/265 (2013.01); F01L 1/267 (2013.01); F01L 13/0005 (2013.01); F01L 13/065 (2013.01); F02D 13/0207 (2013.01); F02D 13/04 (2013.01); F02D 13/06 (2013.01); F01L 2001/0537 (2013.01); F01L 2001/2444 (2013.01); F01L 2013/001 (2013.01); F01L 2305/00 (2020.05);
Abstract
For a given cylinder in the engine having two intake valves and two exhaust valves, one of the intake valves is driven by a bucket tappet, while the other intake valve is actuated via a roller finger follower. Similarly, one of the exhaust valves is driven by a bucket tappet, while the other exhaust valve is actuated via a roller finger follower. The intake valves read inputs form an intake camshaft, and the exhaust valves read inputs from an exhaust camshaft.