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:
Oct. 01, 2013
Filed:
Mar. 09, 2010
James M. Cleeves, Redwood City, CA (US);
Nicholas Manov, Palo Alto, CA (US);
Michael A. Willcox, Mountain View, CA (US);
Simon David Jackson, Redwood City, CA (US);
James M. Cleeves, Redwood City, CA (US);
Nicholas Manov, Palo Alto, CA (US);
Michael A. Willcox, Mountain View, CA (US);
Simon David Jackson, Redwood City, CA (US);
Pinnacle Engines, Inc., San Carlos, CA (US);
Abstract
A system and method are disclosed for fabricating and running an engine in two modes. The first mode is an efficiency mode having a high compression ratio and efficiency for low to medium loads. The second mode is a power mode having high power density for higher loads. The system may use a lean mixture in the efficiency mode, which mixture is made richer for more power in the power mode. The system may also use ignition timing to allow the efficiency mode and the high power mode to be at the same mixture.