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US 12,173,640 B2Granted
Vented pre-chamber ignitor
AssigneeFord Global Technologies, LLC
InventorsVincent Mastrogiacomo, Thomas Leone
Life of this patent
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Abstract
System and methods for an internal combustion engine are described. In one example, the internal combustion engine may be a boosted internal combustion engine that includes an igniter that is at least partially positioned in a cylinder of the internal combustion engine. The igniter includes an orifice that is configured to release exhaust from a pre-chamber of the igniter.
Claims18
An igniter system, comprising:
- a ceramic insulator;
- a center electrode;
- a pre-chamber;
- one or more orifices positioned on a first side of the igniter system and allowing access to the pre-chamber;
- and
- one or more exhaust orifices positioned on a second side of the igniter system, where the one or more exhaust orifices are positioned between a first group of threads and a second group of threads, the first group of threads and the second group of threads configured to engage threads of a cylinder head.
3 more elements
An engine operating method, comprising:
- introducing an air-fuel mixture to a pre-chamber of an igniter;
- combusting at least a portion of the air-fuel mixture via the igniter;
- and
- evacuating at least a portion of exhaust gases from the pre-chamber to an area of an engine other than a cylinder of the engine without the exhaust gases flowing through the cylinder other than in the igniter.
1 more element
An igniter system, comprising:
- a ceramic insulator;
- a center electrode;
- a pre-chamber;
- one or more orifices allowing access to the pre-chamber on a first side of the igniter system;
- one or more exhaust orifices positioned on a second side of the igniter system;
- and
- a cylinder head including an exhaust passage, the exhaust passage configured to receive exhaust gas from the exhaust orifice, where the one or more exhaust orifices lead to an engine air-intake system.
4 more elements
An igniter system, comprising:
- a ceramic insulator;
- a center electrode;
- a pre-chamber;
- one or more orifices allowing access to the pre-chamber on a first side of the igniter system;
- one or more exhaust orifices positioned on a second side of the igniter system;
- and
- a cylinder head including an exhaust passage, the exhaust passage configured to receive exhaust gas from the exhaust orifice, where the one or more exhaust orifices lead to an engine crankcase.
4 more elements
Dependencies are inferred from the claim text.