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 between about 100°
C. and about 1000°
C. less than a temperature inside the combustion chamber, thereby reducing an amount of work otherwise required to perform the compression stroke.
8 Assignments
0 Petitions
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-Thompson 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-Thompson 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
26 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 between about 100°
C. and about 1000°
C. less than a temperature inside the combustion chamber, thereby reducing an amount of work otherwise required to perform the compression stroke.- 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-Thompson coefficient into the combustion chamber during a compression stroke, thereby reducing an amount of work otherwise required to perform the compression stroke. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. 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 negative Joule-Thompson coefficient into the combustion chamber during a power stroke, thereby increasing an amount of work otherwise produced from the power stroke. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. 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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direct injecting a first substance having a positive Joule-Thompson coefficient into the combustion chamber during a compression stroke, thereby reducing an amount of work otherwise required to perform the compression stroke; and direct injecting a second substance having a negative Joule-Thompson coefficient into the combustion chamber during a power stroke, thereby increasing an amount of work otherwise produced from the power stroke. - View Dependent Claims (22)
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23. An engine system comprising:
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an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke; an injector; a first delivery system capable of providing a first substance having a positive Joule-Thompson coefficient to the injector; a second delivery system capable of providing a second substance having a negative Joule-Thompson coefficient to the injector; and an engine control unit operative to receive information indicating a crank angle status of the internal combustion engine and operative to signal the injector based on the crank angle status to inject the first substance into the combustion chamber during a compression stroke and to inject the second substance into the combustion chamber during a power stroke. - View Dependent Claims (24, 25)
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26. A fuel injection system for an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke, the fuel injection system comprising:
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an injector; a first delivery system capable of providing a first substance having a positive Joule-Thompson coefficient to the injector; a second delivery system capable of providing a second substance having a negative Joule-Thompson coefficient to the injector; and an engine control unit operative to receive information indicating a crank angle status of the internal combustion engine and operative to signal the injector based on the crank angle status to inject the first substance into the combustion chamber during a compression stroke and to inject the second substance into the combustion chamber during a power stroke.
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Specification