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:
Nov. 09, 2021
Filed:
Apr. 30, 2021
Applicant:
Massachusetts Institute of Technology, Cambridge, MA (US);
Inventors:
Leslie Bromberg, Sharon, MA (US);
Daniel R. Cohn, Bridgton, ME (US);
John B. Heywood, Newtonville, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 19/08 (2006.01); F02B 47/04 (2006.01); F02B 51/00 (2006.01); F02D 19/12 (2006.01); F02D 35/02 (2006.01); F02M 25/14 (2006.01); F02M 37/00 (2006.01); F02D 19/06 (2006.01); F02B 17/00 (2006.01); F02D 13/02 (2006.01); F02D 41/04 (2006.01); F02D 41/30 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0025 (2013.01); F02B 17/005 (2013.01); F02B 47/04 (2013.01); F02B 51/00 (2013.01); F02D 13/0215 (2013.01); F02D 19/0636 (2013.01); F02D 19/0655 (2013.01); F02D 19/0665 (2013.01); F02D 19/0671 (2013.01); F02D 19/0689 (2013.01); F02D 19/0692 (2013.01); F02D 19/08 (2013.01); F02D 19/081 (2013.01); F02D 19/084 (2013.01); F02D 19/12 (2013.01); F02D 35/027 (2013.01); F02D 41/047 (2013.01); F02D 41/3094 (2013.01); F02M 25/14 (2013.01); F02M 37/0088 (2013.01); F02D 41/0007 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/1002 (2013.01); Y02T 10/12 (2013.01); Y02T 10/30 (2013.01);
Abstract
Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.