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. 10, 2021
Filed:
Apr. 01, 2020
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventor:
Dennis Vroman, Saint Clair Shores, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 23/04 (2006.01); F02M 23/14 (2006.01); F02M 23/00 (2006.01); F02P 3/01 (2006.01); F02M 27/04 (2006.01);
U.S. Cl.
CPC ...
F02M 23/04 (2013.01); F02M 23/006 (2013.01); F02M 23/14 (2013.01); F02M 27/04 (2013.01); F02P 3/01 (2013.01);
Abstract
Methods and systems are provided for an engine having a pre-chamber ignition system. In one example, a method may include adjusting a valve coupled between a pre-chamber of an engine cylinder and a main chamber of the engine cylinder between a fully open position and a fully closed position based on whether pre-chamber ignition is desired or direct spark ignition is desired. In this way, the engine may be operated with direct spark ignition during conditions when pre-chamber combustion has reduced stability without including additional spark plugs and air injectors.