Approach for Facilitating Fuel Evaporation in Cylinder of an Internal Combustion Engine
First Claim
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1. A method of operating an engine including at least one cylinder and a piston disposed within the cylinder, the method comprising:
- during a first condition, injecting fuel into the cylinder and subsequently operating the piston to perform one compression stroke before combusting the injected fuel; and
during a second condition, injecting fuel into the cylinder and subsequently operating the piston to perform at least two compression strokes before combusting the injected fuel.
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Abstract
A method of operating an engine including at least one cylinder and a piston disposed within the cylinder, the method comprising during a first condition, injecting fuel into the cylinder and subsequently operating the piston to perform one compression stroke before combusting the injected fuel, and during a second condition, injecting fuel into the cylinder and subsequently operating the piston to perform at least two compression strokes before combusting the injected fuel.
16 Citations
28 Claims
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1. A method of operating an engine including at least one cylinder and a piston disposed within the cylinder, the method comprising:
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during a first condition, injecting fuel into the cylinder and subsequently operating the piston to perform one compression stroke before combusting the injected fuel; and during a second condition, injecting fuel into the cylinder and subsequently operating the piston to perform at least two compression strokes before combusting the injected fuel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of operating an engine having at least a first cylinder including a first piston and a second cylinder including a second piston, the method comprising:
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injecting fuel into the first cylinder and subsequently operating the first piston to perform a first number of compression strokes before combusting the fuel within the first cylinder; and injecting fuel into the second cylinder and subsequently operating the second piston to perform a second number of compression strokes before combusting the fuel within the second cylinder. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method of operating an internal combustion engine including at least one cylinder having at least one intake valve and one exhaust valve, comprising:
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injecting fuel directly into the cylinder; compressing a mixture of at least air and fuel during a first compression stroke; compressing at least the mixture during at least a second compression stroke; and initiating ignition within the cylinder of the mixture that was at least twice compressed. - View Dependent Claims (23, 24, 25, 26)
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27. A method of operating an internal combustion engine including at least one cylinder having at least one intake valve and one exhaust valve, comprising:
during an engine start; compressing gasses in the cylinder during at least two compression strokes to increase temperature of the gasses, adjusting valve timing during said compressing to adjust a compression temperature of the gasses; injecting fuel directly into the cylinder; and achieving auto-ignition within the cylinder of the at least twice compressed gasses to start the engine. - View Dependent Claims (28)
Specification