| Patent application number | Description | Published |
|---|
| 20090126710 | DUAL COIL IGNITION CIRCUIT FOR SPARK IGNITED ENGINE - An electrical circuit for extending the duration of the spark provided by a spark plug. Instead of a single coil (and a single pair of windings), a dual coil unit is used. The dual coil unit may be operated in a “multi-strike” mode in which the discharge of each coil is shortened and offset from that of the other coil. This provides an effective spark for an extended duration. | 05-21-2009 |
| 20090266344 | Stratified Charge Gasoline Direct Injection Systems Using Exhaust Gas Recirculation - An aspect of the present disclosure relates to a method and system for reducing emissions and improving knock-tolerance in an engine. Air, including exhaust gas present at levels greater than 20% by total air mass, may be introduced into a combustion chamber having a volume including a piston and a cylinder head. A first amount of fuel and a second amount of fuel may be directly injected into the combustion chamber at various points during the cycle, wherein the ratio of the air, including the exhaust gas, to the first and second amounts of fuel is 14.0:1 to 15.0:1. The first and second amounts of fuel may then be ignited. An electronic control unit may be utilized to time the injections and control the introduction of exhaust gas. | 10-29-2009 |
| 20090308070 | EGR SYSTEM WITH DEDICATED EGR CYLINDERS - Improved exhaust gas recirculation system and methods that use one or more of the engine's cylinders as dedicated EGR cylinders. All of the exhaust from the dedicated EGR cylinders is recirculated back to the engine intake. Thus, the EGR rate is constant, but the EGR mass flow may be controlled by adjusting the air-fuel ratio of the dedicated EGR cylinders or by using various variable valve timing techniques. | 12-17-2009 |
| 20110059878 | Lubricant Oil Compositions To Optimize Internal Combustion Engine Performance - The present disclosure relates to lubricant oil compositions formed from base stock oils to optimize internal combustion engine performance. Base stock oils are identified that have selected cetane number characteristics and relatively reduced reactivity to improve their associated combustion characteristics and reduce engine knock without the need to modify the engine fuel or engine parameters such as compression ratio and/or ignition timing. The base stocks may specifically include esters of dicarboxylic acids, esters of trimellitic anhydride and/or alklyated naphthalene compounds. | 03-10-2011 |
