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US 10,883,413 B2Granted
Pre-chamber assembly
AssigneeCummins Inc.
InventorsAlan C. Anderson, John R. Andras
Life of this patent
Estimating the term…
Abstract
A pre-chamber assembly of an internal combustion engine comprises a pre-chamber housing and a plurality of nozzles extending through a portion of the pre-chamber housing. The plurality of nozzles are directed to one location.
Claims21
A pre-chamber assembly of an internal combustion engine, comprising:
- a pre-chamber housing;
- and
- a plurality of nozzles extending through a portion of the pre-chamber housing, each of the plurality of nozzles being directed to a center portion of a combustion chamber of the internal combustion engine.
An internal combustion engine, comprising:
- at least one cylinder including a main chamber and a pre-chamber;
- a plurality of nozzles fluidly coupling the pre-chamber and the main chamber, and each nozzle is angled toward a center portion of the pre-chamber;
- and
- a piston positioned in the main chamber and including a piston bowl facing the pre-chamber,
- wherein outputs from the plurality of nozzles are configured to converge within the piston bowl.
2 more elements
A method of initiating combustion within an internal combustion engine, comprising:
- providing a main chamber extending along a longitudinal axis;
- providing a pre-chamber fluidly coupled to the main chamber through a plurality of nozzles;
- igniting a charge in the pre-chamber;
- focusing an output of the ignited charge from each nozzle toward one location within the main chamber;
- and
- converging the output of the ignited charge from each nozzle toward each other within the piston bowl.
3 more elements
Dependencies are inferred from the claim text.