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US 2021/0254541 A1Published application
Internally cooled internal combustion engine and method thereof
AssigneeNostrum Energy Pte. Ltd.
InventorNirmal MULYE
Life of this patent
Estimating the term…
Abstract
An internal combustion engine is equipped with a water injector for cooling the internal combustion engine by a spray of atomized water into the intake track or combustion chamber prior to ignition. The atomized water spray may be in the intake manifold or directly in the cylinder. The water is injected at a volume of between a ratio of about 95% fuel to about 5% water and about 50% fuel and about 50% water. The temperature of the internal combustion engine is maintained at between about 95° C. and about 200° C. during operation.
Claims9
An internal combustion engine comprising:
- at least one cylinder, each cylinder having a combustion chamber, a piston, an air intake valve, and an exhaust valve, a mechanical compression ratio in each cylinder being greater than 12:1 and less than 40:1;
- an air intake track in communication with each air intake valve;
- an exhaust track in communication with each exhaust valve;
- a fuel handling system with at least one fuel injector for injecting fuel into the combustion chamber or intake track, the fuel handing system providing an air to fuel ratio having a ratio of air to fuel (λ) greater than 1 and less than 7.0;
- an ignition system for igniting the fuel in the combustion chamber at an end portion of a compression stroke of the piston;
- a water injection system comprising a water injector for introducing an amount of water into the combustion chamber, and a water reservoir in fluid communication with the water injector, the water injector being arranged to inject a controlled amount of liquid water stored in the water reservoir into the combustion chamber or intake track;
- and
- an external cooling system comprising a radiator and coolant, the external cooling system being configured to maintain a coolant temperature of between about 91° C. and about 200° C.
5 more elements
An internal combustion engine comprising:
- at least one cylinder, each cylinder having a combustion chamber, a piston, an air intake valve, and an exhaust valve;
- an air intake track in communication with each air intake valve;
- an exhaust track in communication with each exhaust valve;
- a fuel handling system with at least one fuel injector for injecting fuel into the combustion chamber or intake track;
- an ignition system for igniting the fuel in the combustion chamber at an end portion of a compression stroke of the piston;
- and
- a water injection system comprising a water injector for introducing an amount of water into the combustion chamber, and a water reservoir in fluid communication with the water injector, the water injector being arranged to inject a controlled amount of liquid water stored in the water reservoir into the combustion chamber or intake track;
- and
- an external cooling system comprising a radiator and coolant, the external cooling system being configured to maintain a coolant temperature of between about 91° C. and about 200° C.
6 more elements
Dependencies are inferred from the claim text.