Flexible ignition device for gasoline compression ignition combustion in internal combustion engines
AssigneeSaudi Arabian Oil Company
InventorNayan Engineer
Life of this patent
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Abstract
This disclosure presents, in one or more embodiments, an ignition device for a gasoline compression ignition engine. The ignition device includes a shuttle plunger with a gas chamber. The gas chamber is delimited by at least one sidewall of the shuttle plunger and captures exhaust gases. The ignition device also includes an electromagnetic coil that actuates the shuttle plunger in a first direction, a main body with a cavity containing the shuttle plunger and the electromagnetic coil, and a center electrode, fixed to the shuttle plunger, that ignites a fuel mixture.
Claims19
An ignition device for a gasoline compression ignition engine, the ignition device comprising:
- a shuttle plunger comprising a gas chamber, wherein the gas chamber is delimited by at least one sidewall of the shuttle plunger and is configured to capture exhaust gases;
- an electromagnetic coil configured to actuate the shuttle plunger in a first direction;
- a main body comprising a cavity containing the shuttle plunger and the electromagnetic coil;
- and
- a center electrode, fixed to the shuttle plunger, configured to ignite a fuel mixture,
- wherein the shuttle plunger comprises an upper section, a middle section, and a lower section that surround the center electrode.
A method of operating a gasoline compression ignition engine, the method comprising:
- combusting, by a center electrode fixed to a shuttle plunger of an ignition device, a first air and fuel mixture in a main chamber of the gasoline compression ignition engine, thereby producing exhaust gases;
- extending, by an electromagnetic coil, the shuttle plunger from a cavity of a main body of the ignition device that contains the shuttle plunger;
- capturing the exhaust gases by a gas chamber of the shuttle plunger, wherein the gas chamber is delimited by at least one sidewall of the shuttle plunger;
- withdrawing the shuttle plunger into the main body, thereby sealing the gas chamber,
- intaking a second air and fuel mixture into the main chamber of the gasoline compression ignition engine;
- compressing the second air and fuel mixture;
- and
- extending, by the electromagnetic coil, the shuttle plunger from the cavity of the main body, thereby releasing the exhaust gases from the gas chamber,
- wherein the shuttle plunger comprises an upper section, a middle section, and a lower section that surround the center electrode.
Dependencies are inferred from the claim text.