Methods and systems for adaptively cooling combustion chambers in engines
AssigneeMcAlister Technologies, LLC
InventorsRoy Edward McAlister, Melvin James Larsen
Life of this patent
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Abstract
The present disclosure is directed to various embodiments of systems and methods for cooling a combustion chamber of an engine. One method includes introducing fuel into the combustion chamber of an engine having an energy transfer device that moves through an intake stroke, a compression stroke, a power stroke, and an exhaust stroke. The method further includes monitoring a temperature of the combustion chamber. When the temperature reaches a predetermined value, the method also includes introducing coolant into the combustion chamber only during at least one of the power stroke and the exhaust stroke of the energy transfer device.
Claims20
A method of limiting a peak temperature of a combustion chamber in an engine, the method comprising:
- in a first portion of a cycle of the engine
- injecting fuel directly into the combustion chamber during at least one of an intake stroke and a compression stroke of the first cycle;
- and
- igniting the fuel in the combustion chamber to cause combustion;
- monitoring a temperature of the combustion chamber resulting from the combustion;
- and
- in at least one of the first portion or a second portion of the cycle of the engine
- when the temperature reaches a predetermined value, injecting coolant directly into the combustion chamber only during an exhaust stroke of the cycle.
A method of cooling a combustion chamber in an engine, the method comprising:
- introducing fuel into the combustion chamber of the engine, wherein an energy transfer device moves at least partially within the combustion chamber through an intake stroke, a compression stroke, a power stroke, and an exhaust stroke;
- causing the fuel to combust in the combustion chamber;
- monitoring a temperature of the combustion chamber;
- and
- when the temperature reaches a predetermined value, introducing coolant into the combustion chamber only during the exhaust stroke of the energy transfer device.
An internal combustion engine system comprising:
- a combustion chamber;
- an energy transfer device movable relative to the combustion chamber through a cycle comprising an intake stroke, a compression stroke, a power stroke, and an exhaust stroke;
- an injector configured to inject fuel into the combustion chamber during at least one of the intake stroke and the compression stroke;
- an ignition feature configured to ignite the fuel in the combustion chamber;
- and
- a sensor configured to detect a temperature of the combustion chamber, wherein when the temperature reaches a predetermined value, the injector is configured to inject coolant directly into the combustion chamber only during the exhaust stroke.
Dependencies are inferred from the claim text.