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:
Mar. 23, 2021
Filed:
Feb. 18, 2020
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 13/02 (2006.01); F01L 1/047 (2006.01); F02P 5/06 (2006.01); F02D 41/06 (2006.01); F01L 13/00 (2006.01); F02D 41/00 (2006.01); F01L 1/08 (2006.01);
U.S. Cl.
CPC ...
F02D 13/0273 (2013.01); F01L 1/047 (2013.01); F01L 1/08 (2013.01); F01L 13/0036 (2013.01); F01L 13/0063 (2013.01); F02D 13/0246 (2013.01); F02D 41/009 (2013.01); F02D 41/064 (2013.01); F02P 5/06 (2013.01); F02D 2013/0292 (2013.01); F02D 2200/101 (2013.01);
Abstract
Systems and methods for opening and closing exhaust poppet valves of an engine are disclosed. In one example, the exhaust poppet valves may be opened and closed twice during a cycle of an engine via two serially arranged cam lobes that are coupled to a crankshaft so that hydrocarbons may be retained in a cylinder.