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:
Jul. 05, 2016
Filed:
Dec. 18, 2013
Ford Global Technologies, Llc, Dearborn, MI (US);
Chris Paul Glugla, Macomb, MI (US);
John Edward Hedges, Canton, MI (US);
Gopichandra Surnilla, West Bloomfield, MI (US);
Eric Warren Curtis, Milan, MI (US);
Mark Allen Dearth, Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Methods and systems are provided for delivering gaseous fuel as multiple fuel injections split between an intake stroke, a compression stroke, and/or a power stroke to expedite exhaust catalyst heating during an engine cold-start. Fuel injected in the intake and compression stroke is ignited and combusted. The power stroke fuel injections are combusted in the exhaust port to increase exhaust temperature and pressure for faster catalyst light-off.