Internal combustion engine
AssigneeInnio Jenbacher GmbH & Co OG
InventorsNikolaus Spyra, Wolfgang Fimml, Michael Url
Life of this patent
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Abstract
An internal combustion engine includes an intake manifold, at least one intercooler, at least one cylinder head with a plurality of piston-cylinder-units, at least one ammonia source, and a controller. Each piston-cylinder-unit includes at least a main combustion chamber, at least one intake valve, and an ignition device. The at least one ammonia source is configured to provide ammonia to each piston-cylinder unit as part of a combustion charge. The controller is configured to control the intercooler to provide a gaseous medium with a temperature of at least 60° C. to the intake manifold, and control a lambda of the combustion charge inside each main combustion chamber to be between 0.9 and 1.2.
Claims24
A system, comprising:
- an internal combustion engine, comprising:
- an intake manifold configured to provide a gaseous medium to a plurality of piston-cylinder-units;
- at least one intercooler coupled to the intake manifold;
- at least one cylinder head with the plurality of piston-cylinder-units, each piston-cylinder-unit of the plurality of piston-cylinder-units having at least:
- a cylindrical main combustion chamber configured to combust a combustion charge, wherein a volume of the main combustion chamber is defined by the at least one cylinder head and a reciprocally moving piston, the motion of the piston defining a variable volume geometry of the main combustion chamber having a geometrical compression ratio between 12 and 22;
- at least one intake valve coupled to the intake manifold;
- an igniter configured to start combustion of the combustion charge;
- at least one ammonia source configured to provide ammonia to each piston-cylinder-unit of the plurality of piston-cylinder-units as part of the combustion charge:
- via the intake manifold and the at least one intake valve as part of the gaseous medium in form of a mixture of at least air and ammonia;
- and/or
- via at least one further valve provided to each piston-cylinder-unit of the plurality of piston-cylinder-units;
- a controller configured to operate the internal combustion engine, wherein the controller is configured to at least:
- control the at least one intercooler to provide the gaseous medium with a temperature of at least 60° C. to the intake manifold;
- and
- control a lambda of the combustion charge inside each main combustion chamber to be between 0.9 and 1.2.
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A system, comprising:
- at least one ammonia source configured to provide ammonia as part of a combustion charge to each piston-cylinder-unit of a plurality of piston-cylinder-units of an internal combustion engine:
- via an intake manifold and at least one intake valve as part of a gaseous medium in form of a mixture of at least air and ammonia;
- and/or
- via at least one further valve provided to each piston-cylinder-unit of the plurality of piston-cylinder-units;
- and
- a controller configured to operate the internal combustion engine, wherein the controller is configured to at least:
- control at least one intercooler to provide the gaseous medium with a temperature of at least 60° C. to the intake manifold;
- and
- control a lambda of the combustion charge inside a main combustion chamber of each piston-cylinder-unit of the plurality of piston-cylinder-units to be between 0.9 and 1.2.
A method, comprising:
- supplying, via at least one ammonia source, ammonia as part of a combustion charge to each piston-cylinder-unit of a plurality of piston-cylinder-units of an internal combustion engine:
- via an intake manifold and at least one intake valve as part of a gaseous medium in form of a mixture of at least air and ammonia;
- and/or
- via at least one further valve provided to each piston-cylinder-unit of the plurality of piston-cylinder-units;
- and
- controlling, via a controller, operation of the internal combustion engine, wherein controlling comprises at least:
- controlling at least one intercooler to provide the gaseous medium with a temperature of at least 60° C. to the intake manifold;
- and
- controlling a lambda of the combustion charge inside a main combustion chamber of each piston-cylinder-unit of the plurality of piston-cylinder-units to be between 0.9 and 1.2.
Dependencies are inferred from the claim text.