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US 12,025,047 B2Granted
Flow guiding device, cylinder head assembly, and internal combustion engine
AssigneeInnio Jenbacher GmbH & Co OG
InventorFrederic Bussieres
Life of this patent
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Abstract
A flow guiding device for an internal combustion engine includes a main body substantially in the shape of a surface shell of a truncated cone and/or a cylinder and a plurality of orifices in the main body. The main body is adapted to be mounted between a cylinder head body and an ignition assembly of the internal combustion engine, and wherein the orifices are adapted to guide a cooling medium between an outside volume and an inside volume of the truncated cone or cylinder.
Claims26
A system, comprising:
- a flow guiding device for an internal combustion engine, comprising:
- a main body substantially in the shape of a surface shell of a truncated cone and/or a cylinder;
- and
- a plurality of orifices in the main body, wherein the main body is adapted to be mounted between a cylinder head body and an ignition assembly of the internal combustion engine, and wherein the plurality of orifices are adapted to guide a cooling medium between an outside volume and an inside volume of the truncated cone and/or the cylinder;
- and
- a cylinder head assembly for the internal combustion engine including the cylinder head body, the ignition assembly, and a cooling cavity for cooling the cylinder head body and the ignition assembly, the cooling cavity including bridge cavities for cooling a fire deck of the cylinder head body, the bridge cavities leading from a peripheral part of the cylinder head body between inlet openings and exhaust openings in the cylinder head body to a central part of the cylinder head body, the cooling cavity furthermore comprising:
- a central cavity in the central part of the cylinder head body, wherein the central cavity at least partly surrounds the ignition assembly and is in fluid communication with the bridge cavities, and
- axial channels disposed around the ignition assembly, wherein the axial channels are essentially parallel to a longitudinal axis of the ignition assembly, wherein the axial channels are in fluid communication with the bridge cavities and the central cavity.
5 more elements
A system, comprising:
- a cooling guide portion of a cylinder head assembly of an internal combustion engine, wherein the cooling guide portion comprises a plurality of orifices disposed in a central part of a cylinder head body having a cooling cavity, wherein the cooling cavity includes bridge cavities for cooling a fire deck of the cylinder head body, wherein the bridge cavities extend from a peripheral part of the cylinder head body between inlet openings and exhaust openings in the cylinder head body to the central part of the cylinder head body, wherein the plurality of orifices are configured to increase a flow velocity of a cooling medium at least in a region of the bridge cavities along a fire deck of the cylinder head body, wherein at least one orifice of the plurality of orifices is directed toward the fire deck to direct at least a portion of the cooling medium in a flow direction against the fire deck.
A method, comprising:
- guiding a cooling medium via a cooling guide portion of a cylinder head assembly of an internal combustion engine, wherein the cooling guide portion comprises a plurality of orifices disposed in a central part of a cylinder head body having a cooling cavity, wherein the cooling cavity includes bridge cavities for cooling a fire deck of the cylinder head body, wherein the bridge cavities extend from a peripheral part of the cylinder head body between inlet openings and exhaust openings in the cylinder head body to the central part of the cylinder head body;
- and
- increasing a flow velocity of the cooling medium at least in a region of the bridge cavities via the plurality of orifices, wherein at least one orifice of the plurality of orifices is directed toward the fire deck to direct at least a portion of the cooling medium in a flow direction against the fire deck.
A system, comprising:
- a flow guide for an internal combustion engine, comprising:
- a main body;
- and
- a plurality of orifices in the main body, wherein the main body is adapted to be mounted between a cylinder head body and an ignition assembly of the internal combustion engine, the plurality of orifices are adapted to guide a cooling medium between an outside volume and an inside volume of the main body, the plurality of orifices comprise one or more first orifices adjacent to an intake opening in the cylinder head body and one or more second orifices adjacent to an exhaust opening in the cylinder head body, and the one or more first orifices have a smaller cross-sectional area than the one or more second orifices.
1 more element
A system, comprising:
- a flow guide for an internal combustion engine, comprising:
- a main body;
- and
- a plurality of orifices in the main body, wherein the main body is configured to mount removably in a cylinder head body, wherein the main body is configured to mount removably about an outer wall of an ignition assembly comprising an ignition plug, a pre-chamber component, or a combination thereof, wherein the main body is a separate component part from the ignition plug and the pre-chamber component, wherein the plurality of orifices are configured to direct a cooling medium to cool a fire deck of the cylinder head body.
1 more element
Dependencies are inferred from the claim text.