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:
Feb. 23, 2016
Filed:
Jan. 05, 2012
James M. Cleeves, Redwood City, CA (US);
Michael A. Willcox, Redwood City, CA (US);
Simon David Jackson, Redwood City, CA (US);
Nicholas Manov, Palo Alto, CA (US);
James M. Cleeves, Redwood City, CA (US);
Michael A. Willcox, Redwood City, CA (US);
Simon David Jackson, Redwood City, CA (US);
Nicholas Manov, Palo Alto, CA (US);
Pinnacle Engines, Inc., San Carlos, CA (US);
Abstract
An internal combustion engine is operable in an efficiency mode providing a first power output range between zero and a transition power output and in a power mode providing a second power output range between the transition power output and a maximum power output. The efficiency mode can include a first ignition timing and a first air/fuel ratio of the mixture to avoid premature auto-ignition, and the power mode can include a second ignition timing and a second air/fuel ratio of the mixture to avoid premature auto-ignition of the mixture. To further enable knock free operation of such an engine, turbulence can be imparted to the mixture to promote a faster burn duration and high temperatures that may lead to premature auto-ignition of the mixture can be avoided.