System and Method for Providing an Air/Fuel Mixture for an Internal-Combustion Engine
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsSimon ELLGAS, Alexander KROHMER
Life of this patent
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Abstract
An air/fuel mixture consisting of air and a cryogenic fuel, particularly cryogenic hydrogen, is provided for an internal-combustion engine having at least one intake port that can be loaded with air and at least one injector that is assigned to the intake port. A nozzle for blowing in the cryogenic fuel is heatable at least in areas.
Claims20
A system for providing an air/fuel mixture comprising air and a cryogenic fuel, the system comprising:
- an internal-combustion engine comprising at least one intake port and at least one fuel injector assigned to the intake port;
- wherein the fuel injector has a nozzle for blowing the cryogenic fuel into the intake port, the intake port being loadable with air;
- and
- a heater for heating, at least in one region, the nozzle for blowing in the cryogenic fuel.
A method of operating an internal-combustion engine having at least one intake port loadable with air and at least one injector having a nozzle assigned to the intake port, the method comprising the acts of:
- blowing in a cryogenic fuel for an air/fuel mixture into the intake port via the nozzle;
- heating, at least in one region, the nozzle for blowing in the cryogenic fuel;
- and
- providing the air/fuel mixture to a combustion chamber of the internal-combustion engine.
An internal-combustion engine operated by an air/fuel mixture comprising air and a cryogenic fuel, the internal-combustion engine comprising:
- at least one intake port having an inlet side and an outlet side, the outlet side leading into a combustion chamber of the internal-combustion engine;
- an injector having an injector nozzle, the injector being operatively arranged to inject the cryogenic fuel into the intake port;
- and
- a heating system operatively configured to heat the nozzle of the injector in one or more defined regions, whereby the cryogenic fuel is heated to minimize ice formation in a mixture formation area of the cryogenic fuel and air in the intake port.
Dependencies are inferred from the claim text.