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US 2017/0175614 A1Published application
Gasoline compression ignition (gci) engine with dedicated-egr cylinders
OwnerSteven J. Kolhouse, Lyle E. Kocher +1inventors
InventorsSteven J. Kolhouse, Lyle E. Kocher, Samuel C. Geckler
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Abstract
The present disclosure provides a method comprising adjusting at least one of an air-to-fuel ratio and an ignition spark characteristic of a first cylinder of an engine to produce an exhaust gas comprising a predetermined quantity of hydrogen; and providing the exhaust gas from the first cylinder to a second cylinder of the engine, wherein the exhaust gas comprising the hydrogen ignites a first fuel type in response to a compression event.
Claims20
A method, comprising:
- adjusting at least one of an air-to-fuel ratio supplied to a first cylinder and an ignition spark characteristic of the first cylinder of an engine to produce an exhaust gas comprising a quantity of hydrogen;
- and
- providing the exhaust gas from the first cylinder to a second cylinder of the engine, wherein the exhaust gas comprising the hydrogen ignites a first fuel type in response to a compression event.
An apparatus comprising:
- an engine comprising at least a first cylinder and a second cylinder, the first cylinder is a dedicated EGR cylinder, the first cylinder utilizes at least one of spark ignition, fuel-fed pre-chamber ignition, laser ignition, corona ignition, or plasma ignition configured to provide an exhaust gas;
- and
- the second cylinder is a non-dedicated EGR cylinder utilizing compression ignition.
An apparatus comprising:
- an engine comprising at least a first cylinder and a second cylinder;
- the first cylinder is a dedicated-EGR cylinder utilizing spark ignition and the second cylinder is a gasoline compression ignition cylinder utilizing compression ignition;
- the first cylinder is configured to combust an air and fuel mixture in response to an occurrence of an ignition spark and provide an exhaust gas comprising a quantity of hydrogen;
- an exhaust gas recirculation (EGR) circuit configured to provide the exhaust gas from the first cylinder to the second cylinder;
- and
- wherein the exhaust gas comprising the hydrogen ignites a fuel type in response to a compression event.
3 more elements
Dependencies are inferred from the claim text.