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US 10,883,419 B2Granted
Method and system for improving fuel economy and reducing emissions of internal combustion engines
AssigneedynaCERT Inc.
InventorsRobert Alexander, Geoffrey Sheerin, Klaus Tomantschger
Life of this patent
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Abstract
A method and system for improving the fuel economy and lowering the emissions of internal combustion engines by injecting predetermined amounts and ratios of on-board or locally generated hydrogen and oxygen to the engine's air intake and varying the gas addition volume and hydrogen/oxygen ratio as a function of the operating conditions, e.g., in line with the instant engine load.
Claims18
A system for improving fuel economy of an internal combustion engine which combusts a carbon based fuel with air supplied by an air intake, the system comprising:
- a first source for supplying hydrogen gas;
- a second source for supplying oxygen gas, the second source being separate from the first source;
- a third source for supplying the carbon based fuel;
- a control system configured to continuously monitor one or more engine operating parameters to determine, on an ongoing basis, a pre-determined ratio of hydrogen gas to oxygen gas and a pre-determined total volume thereof to be injected into the air intake of the internal combustion engine to enhance the fuel economy thereof, wherein at least one engine operating parameter comprises an instant engine load corresponding to the internal combustion engine;
- and a metering system coupled to the first source, the second source and the air intake of the internal combustion engine, the metering system configured to independently select the pre-determined volumes of hydrogen gas and oxygen gas in the pre-determined ratio, as determined by the control system, from corresponding first and second sources, and provide the selected hydrogen and oxygen gases to the air intake of said internal combustion engine for combustion with the carbon based fuel, wherein a lower ratio of hydrogen gas to oxygen gas is determined by the control system to be injected into the air intake of the internal combustion engine if the instant engine load is lower than a predetermined engine load threshold than if the instant engine load is higher than the predetermined engine load threshold, wherein a higher total volume of hydrogen gas and oxygen gas is determined by the control system to be injected into the air intake of the internal combustion engine if the instant engine load is lower than the predetermined engine load threshold than if the instant engine load is higher than the predetermined engine load threshold.
2 more elements
A method for improving the fuel economy of an internal combustion engine which combusts a carbon based fuel with air supplied by an air intake, the method comprising:
- continuously monitoring, by a control system, one or more engine operating parameters of the internal combustion engine, wherein at least one engine operating parameter comprises an instant engine load corresponding to the internal combustion engine;
- determining, by the control system, on an ongoing basis, a ratio of hydrogen gas to oxygen gas to be added to the air intake of the internal combustion engine based on the engine operating parameters;
- determining, by the control system, on an ongoing basis, a total hydrogen gas and oxygen gas volume to be added to the air intake based on the engine operating parameters;
- and independently selecting, by a metering system coupled to the control system, the determined ratios and total volume of hydrogen gas and oxygen gas from respective separate sources and providing the selected hydrogen and oxygen gases to the air intake of said internal combustion engine for combustion with the carbon based fuel, wherein a lower ratio of hydrogen gas to oxygen gas is determined by the control system to be injected into the air intake of the internal combustion engine if the instant engine load is lower than a predetermined engine load threshold than if the instant engine load is higher than the predetermined engine load threshold, wherein a higher total volume of hydrogen gas and oxygen gas is determined by the control system to be injected into the air intake of the internal combustion engine if the instant engine load is lower than the predetermined engine load threshold than if the instant engine load is higher than the predetermined engine load threshold.
1 more element
Dependencies are inferred from the claim text.