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:
May. 17, 2022
Filed:
Mar. 31, 2021
Applicant:
Tula Technology, Inc., San Jose, CA (US);
Inventors:
Andrew W. Phillips, Rochester, MI (US);
Jerry F. Fuschetto, Bay Point, CA (US);
Assignee:
Tula Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 41/40 (2006.01); F02D 13/02 (2006.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
F02D 41/402 (2013.01); F02D 13/0242 (2013.01); F02D 41/009 (2013.01); F02D 41/401 (2013.01); F02D 2041/389 (2013.01);
Abstract
A skip fire engine controller is disclosed that commands an early direct-injection of fuel during a skipped working cycle in which a cylinder is not exhausted. With early direct injection, the fuel has more time to vaporize and mix with air for combustion in an immediately following working cycle in which the cylinder is fired. By increasing the degree of vaporization and mixing, the combustion is both cleaner and more efficient.