Methods for joule-thompson cooling and heating of combustion chamber events and associated systems and apparatus
First Claim
1. A method for operating an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke, the method comprising:
- injecting a substance into the combustion chamber during a compression stroke at a temperature that is greater than or equal to 100°
C. and less than or equal to 1000°
C. less than a temperature inside the combustion chamber, thereby reducing an amount of work otherwise required to perform the compression stroke, wherein the first substance is selected from the group consisting of natural gas, methane, ammonia, carbon monoxide, carbon dioxide, and nitrogen.
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Accused Products
Abstract
A method for operating an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke. The method comprises direct injecting a first substance having a positive Joule-Thomson coefficient into the combustion chamber during a compression stroke, thereby reducing an amount of work otherwise may be used to perform the compression stroke and direct injecting a second substance having a negative Joule-Thomson coefficient into the combustion chamber during a power stroke, thereby increasing an amount of work otherwise produced from the power stroke.
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Citations
18 Claims
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1. A method for operating an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke, the method comprising:
injecting a substance into the combustion chamber during a compression stroke at a temperature that is greater than or equal to 100°
C. and less than or equal to 1000°
C. less than a temperature inside the combustion chamber, thereby reducing an amount of work otherwise required to perform the compression stroke, wherein the first substance is selected from the group consisting of natural gas, methane, ammonia, carbon monoxide, carbon dioxide, and nitrogen.- View Dependent Claims (2)
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3. A method for operating an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke, the method comprising:
expanding a first substance having a positive Joule-Thomson coefficient into the combustion chamber during a compression stroke, thereby reducing an amount of work otherwise required to perform the compression stroke, wherein the first substance is pressurized to a pressure that is greater than or equal to 100 psi and less than or equal to 1000 psi higher than the pressure inside the combustion chamber at the time of expansion into the combustion chamber. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for operating an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke, the method comprising:
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expanding a first substance having a negative Joule-Thomson coefficient into the combustion chamber during a power stroke, thereby increasing an amount of work otherwise produced from the power stroke; and introducing the first substance at a temperature that is 500°
C. or greater than a temperature inside the combustion chamber. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification