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Title:
MULTI-MODE HIGH EFFICIENCY INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2011/112735
Kind Code:
A4
Abstract:
An internal combustion engine can be operated in an efficiency mode to provide a first power output range between zero and a transition power output level and in a power mode to provide a second power output range between the transition power output level and a maximum power output level. A first ignition timing and a first air/fuel ratio of the mixture can be used in the efficiency mode to avoid premature auto-ignition of a mixture of inlet air and a fuel according to an octane rating of the fuel and a compression ratio exceeding approximately 13:1. A second ignition timing and a second air/fuel ratio of the mixture can be used in the power mode to avoid premature auto-ignition of the mixture according to the octane rating of the fuel and the compression ratio exceeding approximately 13: 1. 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.

Inventors:
CLEEVES, James, M. (1300 Industrial Road, Suite 1aSan Carlos, CA, 94070, US)
MANOV, Nicholas (1300 Industrial Road, Suite 1aSan Carlos, CA, 94070, US)
WILLCOX, Michael, A. (1300 Industrial Road, Suite 1aSan Carlos, CA, 94070, US)
JACKSON, Simon, David (1300 Industrial Road, Suite 1ASan Carlos, CA, 94070, US)
Application Number:
US2011/027775
Publication Date:
October 27, 2011
Filing Date:
March 09, 2011
Export Citation:
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Assignee:
PINNACLE ENGINES, INC. (1300 Industrial Road, Suite 1aSan Carlos, CA, 94070, US)
CLEEVES, James, M. (1300 Industrial Road, Suite 1aSan Carlos, CA, 94070, US)
MANOV, Nicholas (1300 Industrial Road, Suite 1aSan Carlos, CA, 94070, US)
WILLCOX, Michael, A. (1300 Industrial Road, Suite 1aSan Carlos, CA, 94070, US)
JACKSON, Simon, David (1300 Industrial Road, Suite 1ASan Carlos, CA, 94070, US)
International Classes:
F02D41/30; F02D15/00; F02D35/02
Attorney, Agent or Firm:
VAN LOY, Michael, D. et al. (Mintz Levin Cohn Ferris Glovsky And Popeo, P.C.One Financial Cente, Boston MA, 02111, US)
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