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US 2024/0200515 A1Published application
Method and systems for a gaseous fuel turbo-compressor
AssigneeTransportation IP Holdings, LLC
InventorsChristopher Homison, Jacob Kenneth Pedder
Life of this patent
Estimating the term…
Abstract
A system is provided for compressing gaseous fuel for injection into an engine. The system includes a turbine positioned in the exhaust passage of an engine and a compressor positioned in a gaseous fuel line upstream of the engine, where the compressor is coupled to the turbine.
Claims20
A system, comprising:
- a first turbine positioned in an exhaust passage of an engine;
- a second turbine positioned in the exhaust passage;
- and
- a compressor coupled to the first turbine and positioned in a gaseous fuel line upstream of the engine.
1 more element
A system, comprising:
- a first turbine positioned upstream of a second turbine in an exhaust passage of an engine;
- a wastegate valve operable to adjust an amount of exhaust gas flowing through the turbine;
- a compressor coupled to the first turbine and positioned in a gaseous fuel line upstream of the engine, the gaseous fuel line configured to deliver gaseous fuel at or above a direct injection threshold pressure to a plurality of gaseous fuel injectors of the engine, each gaseous fuel injector configured to inject the gaseous fuel directly into a respective cylinder of the engine;
- a fuel storage tank configured to store gaseous fuel at a pressure lower than the direct injection threshold pressure, the fuel storage tank fluidly coupled to the gaseous fuel line;
- and
- a controller configured to respond to a gaseous fuel pressure measurement downstream of the compressor by one or both of:
- adjusting a position of the wastegate valve and activating an electric motor coupled to the compressor.
4 more elements
A method, comprising:
- compressing gaseous fuel at a first pressure below a direct injection threshold pressure to a second pressure at or above the direct injection threshold pressure via a compressor positioned in a gaseous fuel line, the compressor being coupled to a first turbine that is positioned in an exhaust passage of an engine upstream of a second turbine;
- and
- injecting the compressed gaseous fuel at the second pressure into one or more cylinders of the engine.
Dependencies are inferred from the claim text.