Engine system
AssigneeMazda Motor Corporation
InventorsTakeshi Nagasawa, Ryo Kiyosue
Life of this patent
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Abstract
An engine system is provided, which includes an engine configured to generate a motive force for a vehicle by combusting a mixture gas of fuel and intake air, a water injector configured to inject heated water into a combustion chamber of the engine, and a controller configured to control the water injector to inject the water into the combustion chamber during an expansion stroke of the engine. The controller acquires a demanded engine load of the engine, and controls the water injector to increase an amount of water injection when the demanded engine load is within a first-load range, compared to when the demanded engine load is within a second-load range where the engine load is higher than in the first-load range.
Claims20
An engine system, comprising:
- an engine configured to generate a motive force for a vehicle by combusting a mixture gas of fuel and intake air;
- a water injector configured to inject heated water into a combustion chamber of the engine;
- and
- a controller configured to control the water injector to inject the water into the combustion chamber during an expansion stroke of the engine,
- wherein the controller acquires a demanded engine load of the engine, and controls the water injector to increase an amount of water injection when the demanded engine load is within a first-load range, compared to when the demanded engine load is within a second-load range where the engine load is higher than in the first-load range.
An engine system, comprising:
- an engine configured to generate a motive force for a vehicle by combusting a mixture gas of fuel and intake air;
- a water injector configured to inject heated water into a combustion chamber of the engine;
- and
- a controller configured to control the water injector to inject the water into the combustion chamber during an expansion stroke of the engine,
- wherein the controller acquires a demanded engine load of the engine, and controls the water injector to increase an amount of water injection as the demanded engine load decreases.
Dependencies are inferred from the claim text.