| US 7,392,785 B2 | ||
| Controlled self-ignition of an otto engine by supporting spark ignition | ||
| Andre-Francisco Casal Kulzer, Boeblingen (Germany) | ||
| Assigned to Robert Bosch GmbH, Stuttgart (Germany) | ||
| Filed on Sep. 14, 2006, as Appl. No. 11/522,006. | ||
| Claims priority of application No. 10 2005 043 686 (DE), filed on Sep. 14, 2005. | ||
| Prior Publication US 2007/0068466 A1, Mar. 29, 2007 | ||
| Int. Cl. F02B 23/08 (2006.01); F02B 17/00 (2006.01); F02P 23/04 (2006.01) | ||
| U.S. Cl. 123—295 [123/294; 123/299; 123/300; 123/305] | 13 Claims |
| 1. A method for operating an internal combustion engine in controlled self-ignition, the method comprising:
introducing a fuel-air mixture into a combustion chamber at least partially in a gas-exchange cycle;
compressing the fuel-air mixture in a compression stroke; and
in the fuel-air mixture, during the gas-exchange cycle, generating a flame front at at least one place by spark ignition,
which at least one of compresses and heats up a remaining fuel-air mixture, and converts the remaining fuel-air mixture at
least partially to intenriediate combustion products.
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