Compression ignited combustion engine
AssigneeScania CV AB
InventorsBjörn LINDGREN, Manuel SCHELLHASE
Life of this patent
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Abstract
A compression ignited combustion engine has at least one cylinder and first and second gas intake ports in a cylinder head restricting a combustion chamber. One gas intake passage leads to the two ports and is widened in a Y-shaped end influencing gas entering each port into a tangential flow in opposite direction with respect to the flow into the other port. The first intake port is designed to allow gas entering this port to continue said tangential flow so as to enter the combustion chamber in a swirl in a first rotation direction, whereas the second intake port is designed to guide gas entering this port to also enter the combustion chamber in a swirl in said first rotation direction.
Claims12
A compression ignited combustion engine comprising:
- at least one cylinder and first and second gases intake ports in a cylinder head restricting a combustion chamber of the cylinder, said intake ports opening into the combustion chamber;
- and
- one gases intake passage leading towards the two ports perpendicularly to a line along which these ports are arranged in the cylinder head beside each other and to both ports by being widened in the direction of said line while forming a Y-shaped end influencing gases entering each said port into a tangential flow in opposite direction with respect to the flow into the other port,
- wherein the first intake port is designed to allow gases entering this port to continue said tangential flow so as to enter the combustion chamber in a swirl in a first rotation direction, and that the second intake port is designed to guide gases entering this port to also enter the combustion chamber in a swirl in said first rotation direction.
A motor vehicle comprising a compression ignited combustion engine comprising:
- at least one cylinder and first and second gases intake ports in a cylinder head restricting a combustion chamber of the cylinder, said intake ports opening into the combustion chamber;
- and
- one gases intake passage leading towards the two ports perpendicularly to a line along which these ports are arranged in the cylinder head beside each other and to both ports by being widened in the direction of said line while forming a Y-shaped end influencing gases entering each said port into a tangential flow in opposite direction with respect to the flow into the other port,
- wherein the first intake port is designed to allow gases entering this port to continue said tangential flow so as to enter the combustion chamber in a swirl in a first rotation direction, and that the second intake port is desiqned to guide gases entering this port to also enter the combustion chamber in a swirl in said first rotation direction.
A method of creating propulsion of a vehicle comprising using an engine comprising:
- at least one cylinder and first and second gases intake ports in a cylinder head restricting a combustion chamber of the cylinder, said intake ports opening into the combustion chamber;
- and
- one gases intake passage leading towards the two ports perpendicularly to a line along which these ports are arranged in the cylinder head beside each other and to both ports by being widened in the direction of said line while forming a Y-shaped end influencing gases entering each said port into a tangential flow in opposite direction with respect to the flow into the other port,
- wherein the first intake port is designed to allow gases entering this port to continue said tangential flow so as to enter the combustion chamber in a swirl in a first rotation direction, and that the second intake port is desiqned to guide gases entering this port to also enter the combustion chamber in a swirl in said first rotation direction.
Dependencies are inferred from the claim text.