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US 2015/0020766 A1Published application
Prechamber device for an internal combustion engine
AssigneeCummings Incorporated
InventorsLeon A. LaPointe, Premjee Sasidharan
Life of this patent
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Abstract
The disclosure is directed to an internal combustion engine having an improved prechamber device. The prechamber device includes features that provide improved mixing of fuel and air, specifically, a plurality of ribs positioned in a cavity of the prechamber device. The improved mixing of fuel and air yields improved uniformity of combustion in an associated combustion chamber.
Claims20
A prechamber device for an internal combustion engine, comprising:
- a prechamber body having a first end, a second end positioned a spaced longitudinal distance from the first end, a prechamber cavity, and an interior surface forming the prechamber cavity, the interior surface extending circumferentially around the prechamber cavity from the first end to the second end;
- and
- a plurality of rib portions positioned on the interior surface and spaced circumferentially around the interior surface, each of the plurality of rib portions extending from the interior surface into the prechamber cavity and extending along a direction that is from the first end to the second end.
A prechamber device for an internal combustion engine, comprising:
- an interior surface forming a cavity, the interior surface including a first, circumferentially extending curvilinear portion and a second, cylindrical portion, the first, circumferentially extending curvilinear portion including a proximate end and a distal end, the distal end positioned between the curvilinear portion and the cylindrical portion;
- and
- a plurality of rib portions positioned on the interior surface in the curvilinear portion, each rib portion extending from the interior surface into the cavity, and extending from the proximate end toward the distal end.
Dependencies are inferred from the claim text.