Internal combustion engine
AssigneeInnio Jenbacher GmbH & Co OG
InventorRobert Bowing
Life of this patent
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Abstract
A system comprising an electronic control unit configured to provide an intake manifold of an internal combustion engine with a mixture of fuel gas, air and exhaust gas with a lambda (λ) of approximately 1 and an exhaust gas recirculation (EGR) content of about 10% to about 45%, wherein the internal combustion engine comprises a prechamber coupled to a main combustion chamber, wherein the main combustion chamber is formed in a cylinder by a piston and at least one cylinder head, wherein a source of a gas-air mixture into the prechamber comprises: an intake port of the main combustion chamber and a connection line between the intake port and a prechamber gas valve of the prechamber; or an intake manifold and a connection line between the intake manifold and the prechamber gas valve of the prechamber.
Claims20
An internal combustion engine, comprising:
- at least one cylinder head;
- an intake manifold;
- a plurality of main combustion chambers, wherein each of the plurality of main combustion chambers is formed in a cylinder by a piston and the at least one cylinder head;
- a plurality of intake ports, wherein each of the plurality of intake ports is connected to one of the plurality of main combustion chambers and to the intake manifold;
- a plurality of prechambers, wherein each of the plurality of prechambers is connected to one of the plurality of main combustion chambers and comprises a prechamber gas valve, an ignition device, and a source for a gas-air mixture, wherein the source comprises:
- the intake port of the main combustion chamber coupled to the respective prechamber and a connection line between the intake port and the prechamber gas valve of the respective prechamber;
- or
- the intake manifold and a connection line between the intake manifold and the prechamber gas valve of the respective prechamber;
- an exhaust gas re-circulation line coupled to the intake manifold;
- an electronic control unit configured to provide the intake manifold with a mixture of fuel gas, air, and exhaust gas with a lambda (2) of approximately 1 and an exhaust gas recirculation (EGR) content χEGR of about 10% to about 45%, wherein the mixture is present in each of the plurality of main combustion chambers and each of the plurality of prechambers as an ignitable mixture at a time of ignition.
A system, comprising:
- an electronic control unit configured to provide an intake manifold of an internal combustion engine with a mixture of fuel gas, air, and exhaust gas with a lambda (2) of approximately 1 and an exhaust gas recirculation (EGR) content χEGR of about 10% to about 45%, wherein the internal combustion engine comprises a prechamber coupled to a main combustion chamber, wherein the main combustion chamber is formed in a cylinder by a piston and at least one cylinder head, wherein the mixture is present in the main combustion chamber and the prechamber as an ignitable mixture at a time of ignition, wherein a source of a gas-air mixture into the prechamber comprises:
- an intake port of the main combustion chamber and a connection line between the intake port and a prechamber gas valve of the prechamber;
- or
- the intake manifold and a connection line between the intake manifold and the prechamber gas valve of the prechamber.
A method, comprising:
- providing, via control by an electronic control unit, an intake manifold of an internal combustion engine with a mixture of fuel gas, air, and exhaust gas with a lambda (λ) of approximately 1 and an exhaust gas recirculation (EGR) content χEGR of about 10% to about 45%, wherein the internal combustion engine comprises a prechamber coupled to a main combustion chamber, wherein the main combustion chamber is formed in a cylinder by a piston and at least one cylinder head, wherein the mixture is present in the main combustion chamber and the prechamber as an ignitable mixture at a time of ignition, wherein a source of a gas-air mixture into the prechamber comprises:
- an intake port of the main combustion chamber and a connection line between the intake port and a prechamber gas valve of the prechamber;
- or
- the intake manifold and a connection line between the intake manifold and the prechamber gas valve of the prechamber.
Dependencies are inferred from the claim text.